G1037Z 13" Planer/Moulder -21-
The depth of cut is controlled by the handwheel
on top of the planer. Turning the handle clockwise
raises the work table and turning it counterclock-
wise lowers the work table. Depth-of-cut is read
directly from the inch/millimeter scale located on
the right-hand side of the planer. See Figure 16.
One complete turn of the handle raises or lowers
the work table approximately
5
⁄64'' (2mm). The
range of material thickness that can be planed is
3
⁄8'' - 6'' (9.5mm - 152mm).
The maximum depth-of-cut varies according to
the hardness of the wood and how wide of a
board is being passed under the cutterhead.
Generally, we recommend a maximum depth of
no more than
1
⁄16". A series of light cuts will give a
better end result than trying to take off too much
material in a single pass, plus there is less strain
on the motor.
Figure 16. Depth of cut scale and indicator.
Depth Of Cut Indicator
The species of wood, as well as its condition,
have a dramatic effect on planing ability. The
harder the wood (as illustrated by its shear
strength), the more difficult it will be to plane.
Harder wood will require a slower feed speed or
a series of lighter cuts, or both.
A brief listing of common hard and soft woods in
relation to their shear strengths and planing diffi-
culty is listed below.
Type Shear (PSI)
Black Locust 2,480
Sugar Maple 2,330
Pecan Hickory 2,080
White Oak 2,000
White Ash 1,950
Black Cherry 1,700
American Elm 1,510
Black Walnut 1,370
Red Alder 1,080
Basswood 980
Cottonwood 930
Increasing
Difficulty
Type Shear (PSI)
Western Larch 1,410
Tamarack 1,280
Douglas Fir 1,160
Alaska Cedar 1,130
Sitka Spruce 1,150
Sugar Pine 1,050
Cypress 1,000
Redwood (OG) 940
Red Cedar 860
White Pine 850
Balsam Fir 710
Increasing
Difficulty
Depth of CutWood Species
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