EN 14081-4:2005/prA4

Timber structures - Strength graded structural timber with rectangular cross section - Part 4: Machine grading - Grading machine settings for machine controlled systems

Fourth amendment of new machine settings

Holzbauwerke - Nach Festigkeit sortiertes Bauholz für tragende Zwecke mit rechteckigem Querschnitt - Teil 4: Maschinelle Sortierung - Einstellungen von Sortiermaschinen für maschinenkontrollierte Systeme

Structures en bois - Bois de structure de section rectangulaire classé selon la résistance - Partie 4: Classement par machine - Réglages pour les systèmes de contrôle par machine

Lesene konstrukcije - Razvrščanje konstrukcijskega lesa pravokotnega prečnega prereza po trdnosti - 4. del: Strojno razvrščanje - Nastavitve strojev za razvrščanje pri strojno kontroliranih sistemih

General Information

• Status: Not Published
• ICS: 79.040 - Wood, sawlogs and sawn timber
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: CEN/TC 124 - Timber structures
• Drafting Committee: CEN/TC 124/WG 2 - Solid timber
• Current Stage: 5060 - Closure of Vote - Formal Approval
• Start Date: 19-Oct-2008
• Due Date: 22-Sep-2009
• Completion Date: 19-Oct-2008
• Ref Project: SIST EN 14081-4:2005/kprA4:2008 - Timber structures - Strength graded structural timber with rectangular cross section - Part 4: Machine grading - Grading machine settings for machine controlled systems

Relations

• Merged Into: EN 14081-4:2005+A4:2008 - Timber structures - Strength graded structural timber with rectangular cross section - Part 4: Machine grading - Grading machine settings for machine controlled systems
• Effective Date: 22-Dec-2008
• Amends: EN 14081-4:2005+A3:2008 - Timber structures - Strength graded structural timber with rectangular cross section - Part 4: Machine grading - Grading machine settings for machine controlled systems
• Effective Date: 22-Dec-2008

Overview

EN 14081-4:2005/prA4 is a CEN draft amendment (A4) to Part 4 of EN 14081, addressing machine grading settings for machine-controlled systems used with strength-graded structural timber of rectangular cross section. The amendment replaces the previous Tables 1 to 9 with updated machine-specific tables (now Tables 1 to 11) and was submitted to the Unique Acceptance Procedure. The document clarifies environmental, dimensional and calibration requirements for a range of grading machine models and national applications.

Key Topics

• Machine-specific settings: The amendment provides detailed settings and equations for multiple grading systems (examples in the draft include Cook Bolinder/Tecmach, Computermatic, Micromatic, Raute Timgrader, Euro-GreComat and GoldenEye models).
• Indicating properties and calibration: Tables and formulae show how to derive indicating properties (force, deflection, pressure) for given target sizes b × t and grades. Calibration references (machine conversion tables) are indicated for converting force to pressure or deflection units.
• Environmental and operational limits: The draft lists service and grading constraints such as permitted timber temperature, relative humidity, moisture content ranges, maximum feed speeds and restrictions on cupped timber or planed/sawn surfaces.
• National/grade variations: Settings are shown per source country, species and strength class (linked to EN 338 strength classes). The amendment includes notes for regional application (for example, timber grown west of the Ural range) and special grade references like TR26 and L-classes.

Applications

This amendment supports practical use of machine-controlled grading systems by:

• Ensuring uniform grading across production lines through standardised machine settings.
• Providing calibration guidance to convert machine output (force/deflection) into grading indications matching strength classes.
• Helping mills and quality controllers maintain compliance with EN series requirements when producing structural timber for construction.
• Informing equipment selection and setup for species- and grade-specific production runs, while accounting for environmental and dimensional constraints.

Related Standards

• EN 14081-1:2005 - referenced for sizing and general requirements.
• EN 338 - defines strength classes used in the tables.
• EN 336 - timber sizes and dimensions referenced in the amendment.
• EN 384 - referred for calculation of characteristic values for specific grades (e.g., TR26).

This draft amendment is multilingual (EN/FR/DE) and, until acceptance, is distributed for review and comment. It focuses on the practical value of consistent machine grading, clear calibration pathways, and safer, traceable use of strength-graded structural timber in construction.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 14081-4:2005/oprA4:2008
01-september-2008
/HVHQHNRQVWUXNFLMH5D]YUãþDQMHNRQVWUXNFLMVNHJDOHVDSUDYRNRWQHJDSUHþQHJD
SUHUH]DSRWUGQRVWLGHO6WURMQRUD]YUãþDQMH1DVWDYLWYHVWURMHY]DUD]YUãþDQMH
SULVWURMQRNRQWUROLUDQLKVLVWHPLK
Timber structures - Strength graded structural timber with rectangular cross section -
Part 4: Machine grading - Grading machine settings for machine controlled systems
Holzbauwerke - Nach Festigkeit sortiertes Bauholz für tragende Zwecke mit
rechteckigem Querschnitt - Teil 4: Maschinelle Sortierung - Einstellungen von
Sortiermaschinen für maschinenkontrollierte Systeme
Structures en bois - Bois de structure de section rectangulaire classé selon la résistance
- Partie 4: Classement par machine - Réglages pour les systèmes de contrôle par
machine
Ta slovenski standard je istoveten z: EN 14081-4:2005/prA4
ICS:
79.040 Les, hlodovina in žagan les Wood, sawlogs and sawn
timber
79.120.10 Lesnoobdelovalni stroji Woodworking machines
SIST EN 14081-4:2005/oprA4:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 14081-4:2005/oprA4:2008

SIST EN 14081-4:2005/oprA4:2008
EUROPEAN STANDARD
FINAL DRAFT
EN 14081-4:2005+A3:2008
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA4
June 2008
ICS 79.040; 79.120.10
English Version
Timber structures - Strength graded structural timber with
rectangular cross section - Part 4: Machine grading - Grading
machine settings for machine controlled systems
Structures en bois - Bois de structure de section Holzbauwerke - Nach Festigkeit sortiertes Bauholz für
rectangulaire classé selon la résistance - Partie 4: tragende Zwecke mit rechteckigem Querschnitt - Teil 4:
Classement par machine - Réglages pour les systèmes de Maschinelle Sortierung - Einstellungen von
contrôle par machine Sortiermaschinen für maschinenkontrollierte Systeme
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 124.
This draft amendment A4, if approved, will modify the European Standard EN 14081-4:2005+A3:2008. If this draft becomes an
amendment, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion
of this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14081-4:2005/prA4:2008: E
worldwide for CEN national Members.

SIST EN 14081-4:2005/oprA4:2008
Foreword
This document (EN 14801-4:2005/prA4:2008) has been prepared by Technical Committee CEN/TC 124
“Timber structures”, the secretariat of which is held by SFS.
This document is currently submitted to the Unique Acceptance Procedure.
SIST EN 14081-4:2005/oprA4:2008
1 Modifications to Tables 1 to 9
Replace all Tables 1 to 9 with the following new Tables 1 to 11

SIST EN 14081-4:2005/oprA4:2008
Table 1 — Settings for Cook Bolinder (Tecmach) machine types SG-AR, SG-AF and SG-TF
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade Force F
countries (mm) combination (kN)
UK GB Spruce C24 2,68 Requirements for grading:
35 ≤ t ≤ 75
n
Ireland IE Picea abies C16 2,27 - Air temperature between + 10 °C and + 35 °C;
60 ≤ b ≤ 300
n
Picea C16 1,24
- Relative humidity in the air ≤ 85 %;
sitchensis
- Timber temperature ≥ - 10 °C;
Pine C24 2,79
35 ≤ t ≤ 75 - Timber mean moisture content > 10 %;
n
Pinus nigra C16 1,91
60 ≤ b ≤ 300 - Maximum feed speed: 150 m/min.
n
Pinus
C16 1,34
sylvestris
The following equations shall be used to calculate settings for the
Chile CL Radiata pine C27 3,03
35 ≤ t ≤ 50 target size b × t . (NOTE  For timber with a thickness to tolerance
n
n n
Pinus radiata C16 1,43
class 1, i.e. sawn, t in the following equations is the target t + 1 mm.)
60 ≤ b ≤ 300 n n
n
C24 2,32
-1,299
a = 830,7 t   (mm)
C16 2,09
n n
C16 0,92
0,61
P = 4,412 F / t   (bar)
n n n
1.701
Fb t
n n
F =   (kN)
n
()413,9t + 57273
n
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 1 — Settings for Cook Bolinder (Tecmach) machine types SG-AR, SG-AF and SG-TF (continued)
c
Source Source Species Permitted Grade or Model value Comments and adjustments for size
a b
country or mark timber sizes grade
countries (mm) combination ƒ
mod
Estonia EE Spruce C18 20,8 Requirements for grading:
30 ≤ t ≤ 75
n
Finland FI Picea - Air temperature between + 10 °C and + 35 °C;
C24 20,8
60 ≤ b ≤ 300
n
Latvia LV abies
C27 21,8 - Relative humidity in the air ≤ 85 %;
Norway NO
C30 28,5 - Timber temperature ≥ - 10 °C;
d
Russia RU
- Timber mean moisture content > 10 %;
C35 46,5
Sweden SE
C24 20,0 - Maximum feed speed: 150 m/min.
Poland PL
C40 54,5
The following equations shall be used to calculate settings for the
C30 30,6
Finland FI Pine
C18 23,8 target size b × t . (NOTE  For timber with a thickness to tolerance class
n n
Norway NO Pinus
1, i.e. sawn, t in the following equations is the target t + 1 mm.)
n n
Sweden SE sylvestris
0,61
Latvia LV
P = 4,412 F / t   (bar)
n n n
3 -12
F = (5,5I а b t )10   (kN)
n n n n n
-1,299
a = 830,7 t
n n
 
0.79
I
n = f
 
mod
0,22 0,24
t b
 
 n n 
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.
d
Settings apply only to timber grown west of the Ural mountain range in Russia.

SIST EN 14081-4:2005/oprA4:2008
Table 1 — Settings for Cook Bolinder (Tecmach) machine types SG-AR, SG-AF and SG-TF (continued)
c
Source Source Species Permitted Grade or Model value Comments and adjustments for size
a b
country or mark timber sizes grade Force F
countries (mm) combination (kN)
Spain ES Scots pine C27 2,84 Requirements for grading:
35 ≤ t ≤ 75
n
Pinus C16 1,71 - Air temperature between + 10 °C and + 35 °C;
60 ≤ b ≤ 300
n
sylvestris
- Relative humidity in the air ≤ 85 %;
- Timber temperature ≥ - 10 °C;
- Timber mean moisture content > 10 %;
- Maximum feed speed: 100 m/min.

The following equations shall be used to calculate settings for the
target size b × t . (NOTE  For timber with a thickness to tolerance class 1,
n n
i.e. sawn, t in the following equations is the target t + 1 mm.)
n n
-1,299
a = 830,7 t
n n
0,61
P = 4,412 F / t
n n n
1.701
Fb t
n n
F =
n
()413,9t + 57273
n
Spain ES Corsican 40 ≤ t ≤ 70 C30 Not relevant Requirements for grading:
n
pine C18 as all settings - Air temperature between + 10 °C and 35 °C;
100 ≤ b
≤ 200
n
Pinus nigra
shall be - Relative humidity in the air < 85 %;
calculated - Timber temperature > - 10 °C;
using - Timber mean moisture content > 10 %;
equations in - Maximum feed speed: 100 m/min.
comments
column The following equations shall be used to calculate settings for the
target size b × t . (NOTE  For timber with a thickness to tolerance class 1,
n n
i.e. sawn, t in the following equations is the target t + 1 mm.)
n n
-1,299
a = 830,7 t
n n
0,61
P = 4,412 F / t
n n n
3 9
F C30 = (96,297 9 – 0,489 321 t )a b t / (1,318 943 3 × 10 )
n n n n n
3 9
F C18 = (54,497 9 – 0,489 321 t )a b t / (1,318 943 3 × 10 )
n n n n n
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 2 — Settings for Computermatic and Micromatic machines
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade Deflection a
countries (mm) combination (mm)
UK GB Spruce C24 6,35 Requirements for grading:
35 ≤ t ≤ 75
n
Ireland IE Picea abies C16 7,49
60 ≤ b ≤ 300 - Relative humidity in the air ≤ 85 %;
n
Picea
C16 13,78
- Timber temperature ≥ - 10 °C;
sitchensis
- Timber mean moisture content > 10 %;
Pine C24 6,10
35 ≤ t ≤ 75 - Maximum feed speed: 105 m/min.
n
Pinus nigra C16 8,90
60 ≤ b ≤ 300
n
Pinus C16 12,74
The following equations shall be used to calculate settings for the
sylvestris
target size b × t . (NOTE  For timber with a thickness to tolerance
n n
class 1, i.e. sawn, t in the following equations is the target t + 1 mm.)
n n
Chile CL Radiata C27 5,62
35 ≤ t ≤ 50
n
pine C16 11,86
60 ≤ b ≤ 300 F = 0,010 1 b t  (N)
n n n
n
Pinus
C24 7,35
radiata C16 8,13
36,71a 0,00567t + 0,7846
()
n
a =
C16 18,52
n
−5
t()0,9851×10 t b + 0,91
n n n
Actual deflection settings are determined from a /0,19 rounded to
n
the nearest whole number. Refer to calibration tables for machine
to convert force F to pressure setting
n
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 2 — Settings for Computermatic and Micromatic machines (continued)
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
countries (mm) combination IP = f
mod
Norway NO Sitka C30 38,8 Requirements for grading:
33 ≤ t ≤ 53
n
spruce C18 27,9
- Relative humidity in the air ≤ 85 %;
88 ≤ b ≤ 218
n
Picea
- Timber temperature ≥ -10 °C;
Sitchensis
- Timber mean moisture content > 10 %;
- Maximum feed speed: 105 m/min.

The following equations shall be used to calculate settings for
the target size b × t where b and t are target dimensions.
n n n n
Refer to calibration tables for machine to convert F to pressure
n
setting.
F = 0,0101⋅b ⋅t  (N)
n n n
−0,814 0,152
⋅ ⋅
8063 t b
n n
a =  (Bits)
n
0,186 0,152
 
2,14 ⋅t ⋅b
n n
 
f ⋅ 1−
mod
 
f
mod
 
Actual deflection setting a shall be rounded to the nearest
n
whole number of Bits (Bits are units of 0,19mm).

If the actual thickness t
exceeds the target thickness t by more
a n
than 1 mm then the pressure shall be increased by
t 
a
 
 
t
 n
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades specified by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 2 — Settings for Computermatic and Micromatic machines (continued)
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade Deflection a
countries (mm) combination (mm)
Finland FI Spruce C24 9,82 Requirements for grading:
30 ≤ t ≤ 75
n
Picea
Norway NO 60 ≤ b ≤ 300 C27 6,21 - Relative humidity in the air ≤ 85 %;
n
Sweden SE Abies
C30 4,75
- Timber temperature ≥ -10 °C;
Estonia ES
C35 3,40 - Timber mean moisture content > 10 %;
Latvia LV
C27 5,85 - Maximum feed speed: 105 m/min.
d
Russia RU
C16 8,92
Poland PL
The following equations shall be used to calculate settings for
C30 4,75
C18 9,82 the target size b × t where b and t are target dimensions.
n n n n
C30 4,46
Finland FI Pine
Refer to calibration tables for machine to convert F to pressure
C24 5,49 n
Norway NO Pinus
setting.
C18 8,92
Sylvestris
Sweden SE
C35 3,40
Latvia LV
C24 4,94
F = 0,0101b t   (N)
n n n
C18 7,96
0,186 −0,0901
50a
C40 2,83 t b
   
n n
a = 0,19   (Bits)
   
n
C27 5,49 50 150
   
t
n
Actual deflection settings a shall be rounded to the nearest
n
whole number of Bits (Bits are units of 0,19 mm).

If the actual thickness t exceeds the target thickness t more
a n
than 1 mm then the pressure shall be increased by
 
t
a
 
 
t
 n
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades specified by C are strength classes given in EN 338.
d
Settings apply only to timber grown west of the Ural mountain range in Russia.

SIST EN 14081-4:2005/oprA4:2008
Table 2 — Settings for Computermatic and Micromatic machines (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
a
country or mark timber sizes grade Deflection a
b
countries combination (mm)
(mm)
Finland FI Spruce TR26 6,21 Requirements for grading:
30 ≤ t ≤ 75
n
Norway NO Picea 60 ≤ b ≤ 300
- Relative humidity in the air ≤ 85 %;
n
Sweden SE Abies
- Timber temperature ≥ - 10 °C;
Estonia ES
- Timber mean moisture content > 10 %;
Latvia LV
- Maximum feed speed: 105 m/min.
c
Russia RU
Poland PL
The following equations shall be used to calculate settings

for the target size b × t where b and t are target
n n n n
dimensions.
Refer to calibration tables for machine to convert F to
n
Finland FI Pine
pressure setting.
Norway NO Pinus 2
F = 0,0101b t   (N)
n n n
Sweden SE Sylvestris
0,186 −0,0901
Latvia LV
50a
t b
   
n n
a = 0,19   (Bits)
   
n
50 150
t    
n
Actual deflection settings a shall be rounded to the nearest
n
whole number of Bits (Bits are units of 0,19 mm).

If the actual thickness t exceeds the target thickness t
a n
more than 1 mm then the pressure shall be increased by
t 
a
 
.
 
t
 n
TR26 is a UK grade for trussed rafters. Its primary
characteristic values are:
ƒ = 28,3 N/mm², E = 11,0 kN/mm², ρ = 370 kg/m³.
m,k 0,mean k
Other characteristic values can be calculated from the
equations given in EN 384.
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be to EN 336.
c
Settings apply only to timber grown west of the Ural mountain range in Russia.

SIST EN 14081-4:2005/oprA4:2008
Table 3 — Settings for Raute Timgrader machines
c
Source Source Species Permitted Grade Model value Comments and additional requirements
a
country or mark timber sizes or grade
b
countries (mm) combination IP = f
mod
Finland FI Spruce C45 56,5 Requirements for grading:
30 ≤ t ≤ 50
n
Norway NO Picea C30 34,1 - Air temperature between + 10 °C and + 50 °C;
60 ≤ b ≤ 225
n
Sweden SE abies C18 22,0
- Relative humidity in the air ≤ 85 %;
Estonia. ES
C40 53,4
- Timber temperature ≥ - 10 °C;
Latvia LV C30 34,3
- Timber mean moisture content > 10 %;
d
Russia RU
C18 22,0
- Feed speed between 48 m/min and 124 m/min;
Poland PL
C35 44,6 - Cupped timber shall not be graded.

TR26 34,1
C18 22,0 The following equation shall be used to calculate settings:
2,093 0,740
0,630
F = 0,002792t b f a
n n n mod
Finland FI Pine C45 56,5
30 ≤ t ≤ 50
n
where F is the indicating property in N (to obtain the indicating property in
n
Norway NO Pinus C30 34,1
60 ≤ b ≤ 225
n
kilopond F shall be divided by 9,81), t is the target thickness in mm, b is
n n n
Sweden SE sylvestris C18 22,0
the target width in mm (NOTE  For timber with a thickness to tolerance class 1,
Latvia LV C40 53,4
d
i.e. sawn, t in the above equation is the target t + 1 mm.) and f is given in the
n n
mod
Russia RU
C30 34,3
6th column of this table for each grade. a is the pre-set deflection in mm and
C18 22,0
shall be:
C35 44,6
a = 1,6 mm for 47 mm ≤ t ≤ 50 mm a = 2,0 mm for 36 mm ≤ t ≤ 37 mm
TR26 34,1
a = 1,7 mm for 44 mm ≤ t ≤ 46 mm a = 2,1 mm for 34 mm ≤ t ≤ 35 mm
C18 22,0
a = 1,8 mm for 41 mm ≤ t ≤ 43 mm a = 2,2 mm for 32 mm ≤ t ≤ 33 mm
a = 1,9 mm for 38 mm ≤ t ≤ 40 mm a = 2,3 mm for 30 mm ≤ t ≤ 31 mm

The pre-set pressure shall be 23 bar.

The settings for C35-TR26-C18 can also be used for C35-C24-C18.

The characteristic values for the TR26 grade are:
ƒ = 28,3 N/mm², E = 11,0 kN/mm², ρ = 370 kg/m³.
m,k 0,mean k
Other characteristic values can be calculated from the equations given in
EN 384.
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.
d
Settings apply only to timber grown west of the Ural mountain range in Russia.

SIST EN 14081-4:2005/oprA4:2008
Table 4a — Settings for Euro-GreComat 702
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber size grade
countries (mm) combination IP = f
mod
Germany DE Spruce 30 ≤ t ≤ 50 L36 34,5 Requirements for grading:
n
Austria AT Picea 95 ≤ b ≤ 280 L25 22,3 - Timber temperature > 0 °C;
n
Czech CZ abies - Timber mean moisture content between 7 % and 15 %;
Republic - Feed speed between 80 m/min and 300 m/min;
30 ≤ t ≤ 55 L35 34,0
n
Fir - Timber surface planed or sawn.
80 ≤ b ≤ 280 L24 21,0
n
Abies alba
These grades apply to timber where tensile strength controls
the design.
The characteristic values for the grades are:

L36 L35 L25 L24
f (N/mm²) 22,0 21,0 14,5 14,0
t,k
E (kN/mm²) 13,0 13,0 11,0 11,0
t,mean
ρ (kg/m³) 400 400 350 350
k
a
See 7.3 in EN 14081-1:2005.
b
Timber size shall be according to EN 336.

SIST EN 14081-4:2005/oprA4:2008
Table 4b — Settings for GoldenEye 702
d
Source Source Species Permitted Grade or Model value Comments and additional requirements
b a c
country or mark timber size grade
countries (mm) combination IP
UK GB Sitka 35 ≤ t ≤ 80 C24 E = 10 800 Requirements for grading:
n mod
Ireland IE spruce 70 ≤ b ≤ 260 C16 E = 6 000 - Timber temperature > 0°C;
n mod
Picea - Timber mean moisture content between 10 % and
sitchensis 30 %;
C16 E = 5 200
mod
- Maximum feed speed: 450 m/min;
- Timber surface planed or sawn.

The moisture content shall be measured by a
Brookhuis FMI In-line system.
Germany DE Spruce 38 ≤ t ≤ 100 C27 f = 36,0 Requirements for grading:
n mod
Austria AT Picea 89 ≤ b ≤ 250 C16 f = 21,4 - Timber temperature > 0°C;
n mod
Czech CZ abies C24 f = 34,4 - Timber mean moisture content between 10 % and
mod
Republic 18 %;
C18 f = 30,8
mod
Fir - Maximum feed speed: 450 m/min;
C24 f = 34,4
mod
Abies alba - Timber surface planed or sawn.
C16 f = 29,8
mod
a
These settings are approved to permit each piece of timber to be graded as if it is two pieces of timber of smaller widths. The timber is subsequently cut lengthwise into
two pieces with the correct grade marked on each piece. This requires the machine to have the appropriate software, and the timber sizes before and after grading, to be
as required by that software. The sizes of the two pieces after splitting shall be within the permitted timber size. This note is valid for all approved source countries and
species for this machine.
b
See 7.3 in EN 14081-1:2005.
c
Timber size shall be to EN 336.
d
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 4b — Settings for GoldenEye 702 (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
b a c
country or mark timber size grade
countries (mm) combination IP = f
mod
Germany DE Spruce 30 ≤ t ≤ 50 L25 21,6 Requirements for grading:
n
Austria AT Picea abies 95 ≤ b ≤ 280 L17 16,9 - Timber temperature > 0 °C;
n
Czech CZ - Timber mean moisture content between 7 % and 15 %;
L36 32,9
Republic Fir L25 26,8 - Maximum feed speed: 450 m/min
Abies alba - Timber surface planed or sawn.
L17 14,7
L40 39,6
These grades apply to timber where tensile strength controls
L25 20,8
the design.
L17 19,1
The characteristic values for the grades are:

L40 L36 L25 L17
f (N/mm²) 26,0 22,0 14,5 11,0
t,k
E (kN/mm²) 14,0 13,0 11,0 9,0
t,mean
ρ (kg/m³) 420 400 350 320
k
a
These settings are approved to permit each piece of timber to be graded as if it is two pieces of timber of smaller widths. The timber is subsequently cut lengthwise into
two pieces with the correct grade marked on each piece. This requires the machine to have the appropriate software, and the timber sizes before and after grading, to be
as required by that software. The sizes of the two pieces after splitting shall be within the permitted timber size. This note is valid for all approved source countries and
species for this machine.
b
See 7.3 in EN 14081-1:2005.
c
Timber size shall be according to EN 336.

SIST EN 14081-4:2005/oprA4:2008
Table 4b — Settings for GoldenEye 702 (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
b a c
country or mark timber size grade
countries (mm) combination
IP = IP =
IP =
f E
ρ
f E
mod mod ρ
mod
26 ≤ t
Germany DE Spruce ≤ 66 L22 6,8 5 200 305 Requirements for grading:
n
Austria AT Picea 63 ≤ b ≤ 319 - Timber temperature > 0 °C;
n
L25 16,9 3 900 334
Czech CZ abies - Timber mean moisture content between 7 % and 15 %;
L27 21,0 4 000 377
Republic  - Maximum feed speed: 450 m/min;
L17 12,4 6 800 305
Switzerland CH Fir - Timber surface planed or sawn.
L30 25,4 7 900 390
Abies alba
L17 6,8 5 200 305
These grades apply to timber where tensile strength controls
L40 39,8 11 600 434
the design.
L25 19,1 8 600 322
The characteristic values for the grades are:
L36 32,3 10 100 412
L25 20,9 8 900 331
L40 L36 L30 L27 L25
L17 16,4 7 900 305
f
(N/mm²) 26,0 22,0 18,0 16,0 14,5
L40 39,8 11 600 434 t,k
E (kN/mm²) 14,0 13,0 12,0 11,5 11,0
L30 31,2 9 400 385
t,mean
ρ (kg/m³) 420 400 380 370 350
L17 6,8 5 200 305
k
L22 L17
f (N/mm²) 13,0 11,0
t,k
E (kN/mm²) 10,0 9,0
t,mean
ρ (kg/m³) 340 320
k
a
These settings are approved to permit each piece of timber to be graded as if it is two pieces of timber of smaller widths. The timber is subsequently cut lengthwise into
two pieces with the correct grade marked on each piece. This requires the machine to have the appropriate software, and the timber sizes before and after grading, to be
as required by that software. The sizes of the two pieces after splitting shall be within the permitted timber size. This note is valid for all approved source countries and
species for this machine.
b
See 7.3 in EN 14081-1:2005.
c
Timber size shall be to EN 336.

SIST EN 14081-4:2005/oprA4:2008
Table 4b — Settings for GoldenEye 702 (continued)
d
Source SourceSpecies Permitted Grade or Model value Comments and additional requirements
b) a c
country or mark timber size grade
countries (mm) combination IP = f
mod
FI Spruce 55,6
Finland 35 ≤ t ≤ 55 C40 Requirements for grading:
n
Norway NO Picea C30 40,2 - Timber temperature > 0 °C;
90 ≤ b ≤ 220
n
abies
Sweden SE C18 13,5 - Timber mean moisture content between 10 % and 20 %;
Estonia ES - Timber surface finish planed or sawn;
C30 36,5
Latvia LV - Maximum feed speed: 450 m/min.
C18 13,5
e
Russia RU
C35 52,3
Poland PL The settings for C30-C18 can also be used for TR26-C18.
C27 37,6
C18 13,5
TR26 is a UK grade for trussed rafters. Its primary
C35 52,3
characteristic values are:
C24 22,7
ƒ = 28,3 N/mm², E = 11,0 kN/mm², ρ = 370 kg/m³.
m,k 0,mean k
C27 35,9
C16 13,5
Other characteristic values can be calculated from the
TR26 29,9
equations given in EN 384.
C16 13,5
C24 13,5
a
These settings are approved to permit each piece of timber to be graded as if it is two pieces of timber of smaller widths. The timber is subsequently cut lengthwise
into two pieces with the correct grade marked on each piece. This requires the machine to have the appropriate software, and the timber sizes before and after
grading, to be as required by that software. The sizes of the two pieces after splitting shall be within the permitted timber size. This note is valid for all approved
source countries and species for this machine.
b
See 7.3 in EN 14081-1:2005.
c
Timber sizes shall be according to EN 336.
d
Grades prefixed by C are strength classes given in EN 338.
e
Settings apply only to timber grown west of the Ural mountain range in Russia.

SIST EN 14081-4:2005/oprA4:2008
Table 4b — Settings for GoldenEye 702 (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
b a c
country or mark timber size grade
f E
ρ
mod mod mod
countries (mm) combination
Finland FI Spruce 34 ≤ t ≤ 55 LD26 35,6 11 800 407 Requirements for grading:
n
Norway NO Picea 90 ≤ b ≤ 220 LD18 23,8 10 300 365 - Timber temperature > 0 °C;
n
Sweden SE abies LD11 9,0 7 000 315 - Timber mean moisture content between 7 % and 15 %.
Estonia ES The moisture content of the individual timber pieces shall
LD26 35,6 11 800 426
Latvia LV not deviate more than ± 4 % from the mean value;
d LD15 9,5 7 500 325
Russia RU
- Maximum feed speed 450 m/min for X-ray part;
Poland PL
LD22 27,3 10 800 385 - Timber surface planed or sawn.
LD15 14,3 10 000 353
These grades apply to timber where tensile strength
LD22 27,3 10 800 385
controls the design.
LD11 9,0 7 000 315
The characteristic values for the grades are:
LD18 10,0 8 000 356
LD15 9,5 7 500 325
LD26 LD22 LD18 LD15 LD11
f N/mm 26,0 22,0 18,0 14,5 11,0
t,k
E kN/m 14,0 13,0 12,0 11,0 9,0
t,mean
ρ kg/m 410 390 370 350 320
k
a
These settings are approved to permit each piece of timber to be graded as if it is two pieces of timber of smaller widths. The timber is subsequently cut lengthwise into
two pieces with the correct grade marked on each piece. This requires the machine to have the appropriate software, and the timber sizes before and after grading, to be
as required by that software. The sizes of the two pieces after splitting shall be within the permitted timber size. This note is valid for all approved source countries and
species for this machine.
b
See clause 7.3 in EN 14081-1.
c
Timber size shall be to EN 336.
d
Settings apply only to timber grown west of the Ural mountain range in Russia.
SIST EN 14081-4:2005/oprA4:2008
Table 5 — Settings for Euro-GreComat 704
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber size grade
countries (mm) combination IP = f
mod
Germany DE Spruce 18 ≤ t ≤ 55 L40 40,0 Requirements for grading:
n
Austria AT Picea 80 ≤ b ≤ 280 L35 31,0 - Timber temperature > 0 °C;
n
Czech CZ abies L24 19,0 - Timber mean moisture content between 7 % and 15 %;
Republic L16 14,0 - Feed speed between 80 m/min and 120 m/min;
Fir - Timber surface planed.
Abies
alba These grades apply to timber where tensile strength controls
the design.
The characteristic values for the grades are:

L40 L35 L24 L16
f (N/mm²) 26,0 21,0 14,0 10,0
t,k
E (kN/mm²) 14,0 13,0 11,0 8,0
t,mean
ρ (kg/m³) 420 400 350 350
k
a
See 7.3 in EN 14081-1:2005.
b
Timber size shall be according to EN 336.

SIST EN 14081-4:2005/oprA4:2008
Table 5 — Settings for Euro-GreComat 704 (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber size grade
countries (mm) combination IP = f
mod
Finland FI Spruce LS22 31 Requirements for grading:
20 ≤ t ≤ 50
n
Norway NO Picea LS18 23 - Timber temperature > 0 °C;
80 ≤ b ≤ 280
n
Sweden SE abies - Timber mean moisture content between 7 % and 15 %;
LS15 14
Estonia ES - Feed speed between 80 m/min and 120 m/min;
LS22 36
Latvia LV - Timber surface planed.
LS15 29
c
Russia RU
Poland PL These grades apply to timber where tensile strength controls the
Germany DE design.
Austria AT
Czech CZ The characteristic values for the grades are:
Republic
LS22 LS18 LS15
f (N/mm²) 22,0 18,0 14,5
t,k
E (kN/mm²) 13,0 12,0 11,0
t,mean
d
ρ (kg/m³) 390 370 330
k
a
See 7.3 in EN 14081-1:2005.
b
Timber size shall be according to EN 336.
c
Settings apply only to timber grown west of the Ural mountain range in Russia.
d
The density values are indicative only and were not taken into account when calculating settings.

SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC)
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Finland FI Spruce C24 4 300 000 Requirements for grading:
34 ≤ t ≤ 75
n
Norway NO Picea abies - Air temperature between + 10 °C and + 50 °C;
C24 5 010 000
60 ≤ b ≤ 300
n
Sweden SE C16 4 350 000 - Relative humidity in the air: < 85 %;
Estonia ES - Timber temperature > -10 °C;
C27 5 080 000
Latvia LV - Timber mean moisture content between 10 % and 16 %.
C27 5 230 000
d
Russia RU Dynagrade
C16 4 350 000
Poland PL - Conveyor speed: ≤ 1 m/s;
C30 6 480 000
- Spacing between pieces: ≥ 200 mm;
C30 6 480 000
Finland FI Pine - Grading speed: ≤ 100 pieces/min.
C18 4 350 000
Pinus
Norway NO Dynagrade HC
C30 7 250 000
Sweden SE sylvestris - Conveyor speed: ≤ 1,3 m/s;
C24 5 550 000
Latvia LV - Spacing between pieces: ≥ 225 mm;
C30 6 520 000
These - Grading speed for widths ≤ 250mm: ≤150 pieces/min.
C24 5 970 000
settings are Dynagrade XHC
C18 4 490 000
not for pine - Conveyor speed: ≤ 1,3 m/s;
C35 7 780 000
graded on - Spacing between pieces: ≥ 225 mm;
C24 5 680 000
its own. See - Grading speed
C18 5 130 000
other table. for widths ≤ 100 mm: ≤ 240 pieces/min;
C30 6 480 000
for 100 mm < b ≤ 250 mm:    78 000/(b+225) pieces/min.
C16 4 350 000
C27 5 850 000
Actual setting, I is given in machine units and it is not
C18 5 040 000
affected by the timber dimensions.

Where timber has a mean moisture content between 16 %
and 20 % with a minimum value of 14 % and a maximum
value of 22 % then the settings shall be calculated
according to the following equation and rounded to 3
significant digits.
I = I − 0,0738I
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.
d
Settings apply only to timber grown west of the Ural mountain range in Russia.
SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Finland FI Pine C24 4 180 000 Requirements for grading:
34 ≤ t ≤ 75
n
Norway NO Pinus C24 5 150 000 - Air temperature between + 10 °C and + 50 °C;
60 ≤ b ≤ 300
n
Sweden SE sylvestris - Relative humidity in the air < 85 %;
C16 4 180 000
Latvia LV - Timber temperature > -10 °C;
C27 4 730 000
- Timber mean moisture content between 10 % and 16 %.
C27 5 330 000
Dynagrade
C16 4 180 000
- Conveyor speed: ≤ 1 m/s;
C30 5 500 000
- Spacing between pieces: ≥ 200 mm;
C30 5 500 000
- Grading speed: ≤ 100 pieces/min.
C18 4 180 000
Dynagrade HC
C30 6 460 000
- Conveyor speed: ≤ 1,3 m/s;
C24 5 220 000
- Spacing between pieces: ≥ 225 mm;
C30 5 840 000
- Grading speed for widths ≤ 250 mm: ≤150 pieces/min.
C24 5 580 000
Dynagrade XHC
C18 4 960 000
- Conveyor speed: ≤ 1,3 m/s;
C35 6 470 000
- Spacing between pieces: ≥ 225 mm;
C24 5 220 000
- Grading speed
C18 4 960 000
for widths ≤ 100 mm: ≤ 240 pieces/min;
C30 5 500 000
for 100 mm < b ≤ 250 mm:     78 000/(b+225) pieces/min.
C16 4 180 000
C27 5 330 000
Actual setting, I is given in machine units and it is not
C18 4 550 000
affected by the timber dimensions.

Where timber has a mean moisture content between 16 %
and 20 % with a minimum value of 14 % and a maximum
value of 22 % then the settings shall be calculated according
to the following equation and rounded to 3 significant digits.
I = I − 0,0738I
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be to EN 336.
c
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
d
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Requirements for grading:
Finland FI Spruce C24 4 300 000
31 ≤ t ≤ 110
n
- Air temperature between + 10 °C and + 50 °C;
Norway NO Picea
63 ≤ b ≤ 264
n
TR26 6 150 000
- Relative humidity in the air < 85 %;
Sweden SE abies
C16 4 300 000
- Timber temperature > - 10 °C;
Estonia ES
TR26 6 150 000
- Timber mean moisture content between 10 % and 16 %.
Latvia LV Fir
C18 4 300 000
Dynagrade
c
Russia RU Abies
- Conveyor speed: ≤ 1 m/s;
C27 6 150 000
Poland PL alba
- Spacing between pieces: ≥ 200 mm;
C18 4 420 000
Germany DE
- Grading speed: ≤ 100 pieces/min.
C30 6 900 000
Austria AT Dynagrade HC
C18 4 300 000
Czech CZ - Conveyor speed: ≤ 1,3 m/s;
C30 6 900 000
- Spacing between pieces: ≥ 225 mm;
Republic
C24 5 770 000
- Grading speed for widths ≤ 250 mm: ≤ 150 pieces/min.

C18 4 650 000
Dynagrade XHC
- Conveyor speed: ≤ 1,3 m/s;
- Spacing between pieces: ≥ 225 mm;
- Grading speed
for widths ≤ 100mm: ≤240 pieces/min;
for 100 mm < b ≤ 250 mm:         78 000/(b+225) pieces/min.

Actual setting, I is given in machine units and it is not affected by
the timber dimensions.
Where timber has a mean moisture content between 16 % and 20 %
with a minimum value of 14 % and a maximum value of 22 % then
the settings shall be calculated according to the following equation
and rounded to 3 significant digits.
I = I − 0,0738I
TR26 is a UK grade for trussed rafters. Its primary characteristic
values are:
ƒ = 28,3 N/mm², E = 11,0 kN/mm², ρ = 370 kg/m³.
m,k 0,mean k
Other characteristic values can be calculated from the equations given in
EN 384.
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Settings apply only to timber grown west of the Ural mountain range in Russia.
d
Grades prefixed by C are strength classes given in EN 338.
SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
e
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Requirements for grading:
Finland FI Spruce LS18 5 420 000
20 ≤ t ≤ 45
n
- Air temperature between + 10 °C and + 50 °C;
Norway NO Picea
95 ≤ b ≤ 195
n
LS22 6 680 000
- Relative humidity in the air < 85 %;
Sweden SE abies
LS11 4 300 000
- Timber temperature > - 10 °C;
Estonia ES
LS22 6 750 000
- Timber mean moisture content between 10 % and 16 %.
Latvia LV
LS15 4 860 000
Dynagrade
c
Russia RU
- Conveyor speed: ≤ 1 m/s;
LS26 7 270 000
Poland PL
- Spacing between pieces: ≥ 200 mm;
LS15 4 300 000
- Grading speed: ≤ 100 pieces/min.
LS26 7 360 000
Finland FI Pine Dynagrade HC
LS18 6 290 000
Norway NO Pinus - Conveyor speed: ≤ 1,3 m/s;
LS26 7 310 000
- Spacing between pieces: ≥ 225 mm;
Sweden SE sylvestris
C18 4 350 000
- Grading speed for widths ≤ 250 mm: ≤ 150 pieces/min.
Latvia LV
Dynagrade XHC
- Conveyor speed: ≤ 1,3 m/s;
These
- Spacing between pieces: ≥ 225 mm;
settings
- Grading speed
are not for
for widths ≤ 100 mm: ≤240 pieces/min
pine
for 100 mm < b ≤ 250 mm:         78 000/(b+225) pieces/min.
graded on
These LS grades apply to timber where tensile strength controls the
design.
its own.
Actual setting, I is given in machine units and it is not affected by
See other
the timber dimensions.
table.
Where timber has a mean moisture content between 16% and 20%

with a minimum value of 14% and a maximum value of 22% then the
settings shall be calculated according to the following equation and
rounded to 3 significant digits.
I = I − 0,0738I
Characteristic values of the grades:
LS26 LS22 LS18 LS15 LS11
f (N/mm²) 26,0 22,0 18,0 14,5 11,0
t,k
E (kN/mm²) 14,0 13,0 12,0 11,0 9,0
t,mean
d)
ρ (kg/m³) 410 405 390 385 380
k
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Settings apply only to timber grown west of the Ural mountain range in Russia.
d
The density values are indicative only and were not taken into account when calculating settings.
e
Grades prefixed by C are strength classes given in EN 338.

SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Requirements for grading:
Finland FI Spruce LS15 4 300 000
19 ≤ t ≤ 50
n
- Air temperature between + 10 °C and + 50 °C;
Norway NO Picea
85 ≤ b ≤ 242
n
LS18 6 110 000
- Relative humidity in the air < 85 %;
Sweden SE abies
- Timber temperature > -10 °C;
LS22 6 950 000
Estonia ES
- Timber mean moisture content between 10 % and 16 %.
LS11 4 300 000
Latvia LV Fir
Dynagrade
c
Russia RU Abies LS22 7 120 000
- Conveyor speed: ≤ 1 m/s;
LS15 5 880 000
Poland PL alba
- Spacing between pieces: ≥ 200 mm;
Germany DE LS22 7 130 000
- Grading speed: ≤ 100 pieces/min.
Austria AT LS18 6 780 000 Dynagrade HC
Czech CZ - Conveyor speed: ≤ 1,3 m/s;
LS26 7 440 000
- Spacing between pieces: ≥ 225 mm;
Republic LS15 5 420 000
- Grading speed for widths ≤ 250 mm: ≤ 150 pieces/min.

LS26 7 560 000
Dynagrade XHC
LS18 6 640 000
- Conveyor speed: ≤ 1,3 m/s;
- Spacing between pieces: ≥ 225 mm;
- Grading speed
for widths ≤ 100 mm: ≤ 240 pieces/min;
for 100 mm < b ≤ 250 mm:        78 000/(b+225) pieces/min.
These grades apply to timber where tensile strength controls the design.
Actual setting, I is given in machine units and it is not affected by
the timber dimensions.
Where timber has a mean moisture content between 16 % and 20 %
with a minimum value of 14 % and a maximum value of 22 % then
the settings shall be calculated according to the following equation
and rounded to 3 significant digits.
I = I − 0,0738I
Characteristic values of the grades:
LS26 LS22 LS18 LS15 LS11
f (N/mm²) 26,0 22,0 18,0 14,5 11,0
t,k
E (kN/mm²) 14,0 13,0 12,0 11,0 9,0
t,mean
d)
ρ (kg/m³) 410 400 380 375 365
k
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
Settings apply only to timber grown west of the Ural mountain range in Russia.
d
The density values are indicative only and were not taken into account when calculating settings.

SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Requirements for grading:
Finland FI Pine LS15 5 350 000
19 ≤ t ≤ 53
n
- Air temperature between + 10 °C and + 50 °C;
Norway NO Pinus
85 ≤ b ≤ 248
n
LS18 5 840 000
- Relative humidity in the air < 85 %;
Sweden SE sylvestris
- Timber temperature > - 10 °C;
LS22 6 240 000
- Timber mean moisture content between 10 % and 16 %.
LS11 4 360 000
Dynagrade
LS22 6 350 000
- Conveyor speed: ≤ 1 m/s;
LS15 5 500 000
- Spacing between pieces: ≥ 200 mm;
LS22 6 400 000
- Grading speed: ≤ 100 pieces/min.
LS18 6 070 000 Dynagrade HC
- Conveyor speed: ≤ 1,3 m/s;
LS26 6 460 000
- Spacing between pieces: ≥ 225 mm;
LS15 5 500 000
- Grading speed for widths ≤ 250mm: ≤ 150 pieces/min.
LS26 6 730 000
Dynagrade XHC
LS18 6 280 000
- Conveyor speed: ≤ 1,3 m/s;
- Spacing between pieces: ≥ 225mm;
- Grading speed
for widths ≤100mm: ≤ 240 pieces/min;
for 100 mm < b ≤ 250 mm:        78 000/(b+225) pieces/min.
These grades apply to timber where tensile strength controls the design.
Actual setting, I is given in machine units and it is not affected by
the timber dimensions.
Where timber has a mean moisture content between 16 % and 20 %
with a minimum value of 14 % and a maximum value of 22 % then
the settings shall be calculated according to the following equation
and rounded to 3 significant digits.
I = I − 0,0738I
Characteristic values of the grades:
LS26 LS22 LS18 LS15 LS11
f (N/mm²) 26,0 22,0 18,0 14,5 11,0
t,k
E (kN/mm²) 14,0 13,0 12,0 11,0 9,0
t,mean
c)
ρ (kg/m³) 435 435 435 420 405
k
a
See 7.3 in EN 14081-1:2005.
b
Timber sizes shall be according to EN 336.
c
The density values are indicative only and were not taken into account when calculating settings.

SIST EN 14081-4:2005/oprA4:2008
Table 6 — Settings for Dynagrade machine (including HC and XHC) (continued)
c
Source Source Species Permitted Grade or Model value Comments and additional requirements
a b
country or mark timber sizes grade
I
countries (mm) combination (machine units)
Requirements for grading:
Finland FI Spruce TR26 5 520 000
34 ≤ t ≤ 75
n
- Air temperature between + 10 °C and + 50 °C;
Norway NO Picea abies
TR26 5 850 000
60 ≤ b ≤ 300
n
- Relative humidity in the air < 85 %;
Sweden SE C18 5 040 000
- Timber temperature > - 10 °C;
Estonia ES
TR26 5 850 000
- Timber mean moisture content between 10 % and 16 %.
Latvia LV
C16 4 350 000
Dynagrade
d
Russia RU
- Conveyor speed: ≤ 1 m/s;
Poland PL
- Spacing between pieces: ≥ 200 mm;
- Grading speed: ≤ 100 pieces/min.
Dynagrade HC
- Conveyor speed: ≤ 1,3 m/s;
- Spacing between pieces: ≥ 225 mm;
Finland FI Pine TR26 5 210 000
34 ≤ t ≤ 75
n
- Grading speed for widths ≤ 250 mm: ≤150 pieces/min.
Norway NO Pinus TR26 5 220 000
60 ≤ b ≤ 300
n
- Dynagrade XHC
Sweden SE sylvestris
C18 4 550 000
Conveyor speed: ≤ 1,3 m/s;
Latvia LV
TR26 5 220 000 - S
...