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8" X 20" MODEL 820N OKAMOTO HYDRAULIC PRECISION SU

GRINDER SURFACE
Manufacturer:
MISC.
Model:
820N
Year:
1984
Stock #:
2171
8" X 20" MODEL 820N OKAMOTO HYDRAULIC PRECISION SU

Capacity Maximum grinding width X length 8" X 20"
Maximum vertical clearance 15.6"
Table load capacity 445 lbs.
Table Working surface 7.9" x 21.6"
Maximum cross travel 9.05"
Maximum longitudinal travel 23.8"
Feeds Longitudinal movement of table
Hydraulic feed 1.0 - 83 FPM
Hand feed per revolution 1.85"
Cross movement of saddle
Hydraulic intermittent feed .02-0.47"
Hydraulic continuous feed 4-40"/min.
Hand feed per revolution .25"
Graduation of handwheel .001"
Vertical movement of wheelhead
Automatic feed per table stroke .001-.0015"
Automatic feed per saddle reversal .0001-.0015"
Graduation of handwheel .0001"
Rapid feed (60 HZ) 19"/min.
Weight (approx.) 3,330 lbs.

MOTOR SPECIFICATIONS

2 HP 3/60/230/460 Spindle drive motor & control
1 HP 3/60/230/460 Hydraulic motor
1/2 HP Vertical rapid feeder motor

8" X 20" Fine line electro-magnetic chuck with automatic
demagnetizing controller
Sony LF-200-22 Digital Readout System
Incremental power down feed
Automatic cross feed reversal
(CONTINUED)

(CONTINUED)
Coolant & dust suction systems
Grinding wheel balancing apparatus
Wheel head mountd type wheel dresser, manually operated
Spare grinding wheel adapter
Splash guards
SPECIFICATION SUBJECT TO VERIFICATION

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