7 Mechanical Timber Harvesting Handbook
Cutting Systems Operational Parameters, Service Life,
and Safety.
Recommendations for saw chain speed and guide bar feed load
(listed in our Technical Data tables) are intended to provide a
balance between performance and cutting system life.
WARNING: Exceeding recommendations may result in
cutting system wear and shorter service life. Exceeding
recommendations may increase the potential for chain shot
events and potential injury or death. At no time should you
exceed recommended maximum chain speed.
Technical Data (English Units)
Oregon Saw Chain Part
Number
.404" Pitch 3/4" Pitch
18HX 19HX 11BC 11H
Operating Parameters
Guide bar/saw chain oil
oz./cut 0.1 0.1 0.4 0.4
Power, hp min/max 5/65 20/65 5/90 10/100
Force on guide bar to tension
saw chain, lbs.
110 110 150 150
Guide Bar Feed Load, at Center, lbs.
Min/max 30/200 30/200 30/300 30/300
Recommended 150 150 200 200
Saw Chain Speed, Ft./Min
Min/max 3000/8000 3000/8000 1500/7000 1500/7000
Recommended 8000 8000 6000 6000
Operational Recommendations
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