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Tip
#6
Drum Sanding
(continued)
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Drum
Sander Speeds
Operate
the drum sander at the speed recommended in Table 18-1. Start
at a low speed and gradually increase to where you are getting
the smoothness you need. The problem with excessive speed
is that enough friction can occur to burn the wood unless
the feed pressure is feather-light. Also, since friction heat
can draw pitch or resin from the wood, excessive speeds cause
more rapid filling and clogging of the abrasive. So work wisely
at a reasonable speed and use only the amount of feed pressure
required for the abrasive material to do its job.
| Table
18-1: Drum Sanding Speed Chart |
| Abrasive |
Hardwood |
Softwood |
| Coarse |
H
(1600 RPM) |
I
(1750 RPM) |
| Medium |
I
(1750 RPM) |
J
(1900 RPM)
|
| Fine |
J
(1900 RPM) |
K
(2050 RPM) |
| NOTE:
These speeds are for 60 hz. operations. |
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