spiral cutterhead

spiral cutterhead

[′spī·rəl ′kəd·ər‚hed]
(mining engineering)
A rotary digging device which dislodges and feeds alluvial sand or gravel to the intake of a suction dredge.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Grizzly offers the G0453PX 15-inch planer with a spiral cutterhead. It features a 42 1/8-inch-long bed with cast iron wings and bed rollers, 16 and 30 fpm feed rate and a 4,800 rpm cutterhead speed.
double headed planer/ sander features a 15-hp, 220V/440V, 3-phase sanding/ planing motor and a spiral cutterhead in front and sanding drum in back that does the work of two machines.
The second kit is a spiral cutterhead; this kit is also offered as an upgrade from a straight knife, Sunhill says.