261 HEALD HORIZONTAL SPINDLE, VERTICAL COLUMN-TYPE ROTARY SURFACE GRINDER

261 PRIVATE HEALD HORIZONTAL SPINDLE, VERTICAL COLUMN-TYPEtc� \l 1 HEALD MODEL 261 HORIZONTALSPINDLE, VERTICAL COLUMN-TYPE
ROTARY SURFACE GRINDER
S/N 31763 Year: 1952

STANDARD CATALOG SPECIFICATIONS:

CAPACITIES:
Chuck face diameter...................................19
Chuck magnetic diameter……......................... 16 fork pattern
Swing inside of coolant pan, maximum……............ 18 1/2
Wheel size........................................ 14x 1.5x 5
Minimum wheel diameter...........................9
Distance from top of chuck to center of grinding wheel:
Maximum...................................... 17 1/2
Minimum....................................…... 4 1/2
Maximum angle:
Convex......................................….. 17 degrees
Concave....................................….. 10 degrees
Table travel (Not grinding stroke)...............….12
Grinding stroke (Dependent on nature of work)....…….. 8
Vertical distance..........................10.5approx.

SPEEDS FEEDS:
Chuck speeds, unlimited between.................……. 50 - 225 RPM
Wheel speeds, approximate............................ 1640 RPM
Table speeds, for grinding......................….... 0 - 12 FPM
Table speeds, for run-out........................……. 35 FPM
One turn of feed hand wheel......................... .050
Each graduation of feed dial....................... .001
Power feed adjustment............................……... .0001-.0005
(In increments of .0001)

DRIVE
Main drive motor, 60 cycles a-c................…. 15 HP 1750 RPM
Coolant pump motor, 60 cycles a-c.............….. 1/2 HP 1800 RPM

GENERAL DATA:
Capacity of oil reservoir - machine................ 15 gallons
Capacity of coolant tank.........................45 gallons
Floor space with coolant tank....................77 x 83
Weight of machine, net...........................8,350 lbs.
Gross weight crated, approximate.................9,350 lbs.

EQUIPMENT FEATURES
Single point diamond dresser.
All proper guarding.
16 Magnetic chuck with controls.
Variable chuck speeds.

Specifications are deemed accurate, however, subject to verification or prior sale.