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271 HEALD SIZEMATIC PRECISION INTERNAL GRINDER

GRINDER INTERNAL
Manufacturer:
HEALD
Model:
271 SIZEMATIC
Year:
1957
Stock #:
6046
271 HEALD SIZEMATIC PRECISION INTERNAL GRINDER

Swing over table, straight work 18"
Swing inside standard chuck guard 12"
Maximum length of hole that can be ground 5.5"
Diameter of hole that can be ground 1/8" - 5 1/2"
Maximum included angle taper 60 degrees
Table travel 16"
Table speed rapid traverse35 FPM
Table speed grinding 0 to 20 FPM
One turn of cross feed handwheel .060" on diameter
Wheel wear compensation on diameter 0 to .004"
Maximum power cross feed .042" on diameter
Floor space 93" x 85"
Approximate net weight 7,400 lbs.

MOTOR SPECIFICATIONS

5 HP 3/60/220-440 Spindle drive motor
5 HP 3/60/220/440 Wheelhead motor
2 HP 3/60/220/440 Oil pump motor
1/2 HP 3/60/208-220/380-440 Coolant pump motor

12" 3-Jaw chuck
17,500 RPM Heald Red Head spindle, 5-2-U500
Spindle dresser
Coolant system

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