1986 HEALD #171 Sizematic Internal Grinder available. Features 8" swing, 11.75" capacity, 2" max bore, 12" travel, and a dresser. Driven by 1 hp workhead and 5 hp wheel motor, 1,200 RPM speed, with Marposse E-9 gauge.
| Swing | 8" | 203.2 mm |
| Size Capacity | 11.75" | 11.75" |
| Max Grinding Bore | 2" | 50.8 mm |
| Travel-Long | 12" | 304.8 mm |
| Workhead Power | 1 hp | 0.7 kW |
| Wheel Power | 5 hp | 3.7 kW |
| Workhead Speed | 1,200 RPM | 1,200 RPM |
| Dresser | Yes | Yes |
| Weight | 5400 | 5400 |
171 HEALD SIZEMATIC INTERNAL GRINDER
S/N 48894 Year: 1986
STANDARD SPECIFICATIONS
CAPACITIES
Maximum swing, straight work, on center line dia.. 13-3/4"
Maximum swing over table.......................... 11-3/4"
Swing inside standard guard diameter.............. 8"
Maximum length of hole............................ 3"
Maximum diameter of hole.......................... 2"
Minimum diameter of hole.......................... 1/8"
Maximum included angle (Sizematic only)........... 60 degrees
Center of chuck spindle from floor................ 44"
Diameter of work head spindle flange.............. 6"
Table travel...................................... 12"
SPEEDS & FEEDS
Table speed - rapid traverse...................... 35 FPM
Table speeds for grinding unlimited between....... 0-20 FPM
Work head speed - two step sheave................. 960 or 1360 FPM
One turn of cross feed hand wheel................. .060" on dia.
Maximum power cross feed.......................... .042" on dia.
Wheel wear compensation on diameter............... 0 - .004"
DRIVE
Work head motor -
Std. voltages.................. 60 cycle a-c 1 HP - 1800 RPM
Oil pump motor................. 60 cycle a-c 1-1/2 HP - 1800 RPM
Wheel head motor............... 60 cycle a-c 5 HP - 3600 RPM
Coolant pump motor............. 60 cycle a-c 1/4 HP - 1800 RPM
GENERAL DATA
Capacity of oil tank............................... 10 gallons
Capacity of coolant tank........................... 55 gallons
Net weight of machine (approx.).................... 5,400 lbs.
ADDITIONAL FEATURES
Marposse E-9 gauge system.
Rough and finish timer.
Vari speed work head.
0 1200 R.P.M.
Reciprocation or plunge.
Single or double back off.
3 Jaw chuck.
Specifications are deemed accurate, however, subject to verification or prior sale.