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Used

USED 1955 HEALD #272

Michigan, United States
988Listings|45Followers
Overview
Internal Grinders

272 HEALD Plain Internal Grinder. 20" capacity with specifications like a 12" hole length, 1/8" to 21 3/4" hole diameter, and various motor speeds. Equipped with plain feed box, single point diamond dresser, and cross sliding work head.

Specs
Swing
20"
508 mm
Size Capacity
20"
20"
Max Grinding Bore
21.75"
552.45 mm
Travel-Long
30.25"
768.35 mm
Workhead Power
1.5 hp
1.1 kW
Wheel Power
5 hp
3.7 kW
Workhead Speed
1,800 RPM
1,800 RPM
Dresser
Yes
Yes
Dimensions
123 x 74
123 x 74
Weight
7600
7600

272 HEALD PLAIN INTERNAL GRINDER

S/N 33354 Year: 1954

STANDARD CATALOG SPECIFICATIONS
Swing inside standard guard........................ 18"
Maximum length of hole............................. 12"
Maximum diameter of hole........................... 21 3/4"
Minimum diameter of hole........................... 1/8"
Maximum included angle (size matic only)........... 60 degrees
Center of chuck spindle from floor................. 42"
Diameter of work head spindle flange............... 9 5/8"
Table travel....................................... 30 1/4"
Capacity of oil tank............................... 15 gallons
Capacity of coolant tank........................... 55 gallons

SPEEDS & FEEDS
Table speeds: Rapid traverse...................... 35 FPM
Grinding............................ 0 20 FPM
Work head speeds..................... 400, 266, 200, 133 FPM
One turn of cross feed hand wheel.................. .060" on dia.
Wheel wear compensation on dia..................... 0 to .004"
Maximum power cross feed........................... .042" on dia.

DRIVE
Work head motor, standard 60 Cycles a c........ 1 1/2 1 3/4 1/2 HP
..................................... 1800, 1200, 900, 600 RPM
Oil pump motor....................... 2 HP, 1800 RPM
Wheel head motor..................... 5 HP, 3600 RPM
Coolant pump motor................... 1/2 HP, 1800 RPM

GENERAL DATA
Floor space without coolant tank................... 123" x 74"
Net weight of machine (approximate)................ 7,600 lbs.
Gross weight, crated (approximate)................. 8,700 lbs.
Gross weight, boxed (approximate).................. 9,500 lbs.

EQUIPMENT & FEATURES
Plain feed box.
Single point diamond dresser.
Facing stop.
Cross sliding work head.
Attached electrical.

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

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