SHEFFIELD MODEL 122 MICRO-FORM GRINDER

Range of Work
Maximum working range
Direct (at one setting of work slides) .400" x .40
0" x 2" thick
Indirect 6" x 2" x 2-3/8" thick
Maximum length of work ground 6"
Maximum width of work 10"
Maximum thickness of work 4"
Maximum length of work Unrestricted
Grinding Wheel and Head
Angular position for axial clearance 0 to 30 deg
rees
Angular position for lateral clearance -10 to +10
degrees
Strokes of wheel pride per minute
For work 0" to 3/4" thick 90
For work 3/4" to 2" thick 45
Stroke can be set 0" to 2-1/4"
Standard grinding wheel diameter 6"
Maximum grinding wheel diameter 6"
Wheel spindle speed 3500 RPM
Grinding motor speed 1750 RPM
Driver pulley diameter 3-1/4"
Range of Adjustment
Wheel head lower slide, at an angle -90 to +90 degrees
In longitudinal direction 5-1/8"
Wheel head upper slide, at an angle -90 to +90 degrees
In the cross direction 5-7/8"
Work head column vertically 4"
Cross slide 2-3/8"
Longitudinal slide 6"

MOTOR SPECIFICATIONS

1/2 HP 3/60/220/440 Wheel head motor & controls