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20" X 48" THOMPSON TYPE C HYDRAULIC SURFACE GRINDER

GRINDER SURFACE
Manufacturer:
THOMPSON
Model:
4C
Year:
1951
Stock #:
6155
20" X 48" THOMPSON TYPE C HYDRAULIC SURFACE GRINDER

Table size 20" x 70"
Travels - Longitudinal 56"
Travels - Cross 20"
Travels - Vertical 28" (under a new wheel)
Table speed (hydraulic) 10 - 100 FPM
Vertical feed - handwheel or power downfeed .0005" increm
ents
Power elevation speed 15 IPM
Cross feed (hydraulic) 1/32" to 1/2 wheel width
Hydraulic wheel truing 6 IPM
Rapid traverse rate 240 IPM
Grinding wheel speed 6000 SFPM
Grinding wheel size 20" x 6" x 12"
Overall dimensions 157"L x 99"W x 122"H
Weight (est.) 23,500 lbs.

MOTOR SPECIFICATIONS

30 HP 220/440 3/60 spindle motor
7-1/2 HP 220/440 3/60 hydraulic pump motor
1/2 HP AC power elevation motor
1/2 HP AC coolant system motor
Electrical controls

Incremental power down feed in .0005" increments
20" x 48" electromagnetic chuck and nutrifier
Self contained hydraulic system
Power elevation
Over the wheel dresser
Wheel cover
Splash guards
Coolant system
Push button controls

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