HEALD MODEL No. 172 INTERNAL GRINDER

HEALD MODEL No. 172 internal grinder, used. Perfect for precision machining tasks. Well-suited for shops in need of reliable equipment. Great opportunity to enhance your machine capabilities with a trusted brand name. STANDARD CATALOG SPECIFICATIONS Swing inside standard coolant guard................ 36" Maximum diameter of hole that can be ground........ 14" Maximum grinding stroke, depending on nature of work. 13" Gap adjustment (standard)..................... 6 1/4" to 13 1/2" Gap adjustment with special bridge................. 12" ? 20" (Taper is depending upon nature of work) Center of chuck spindle from floor................. 45" Diameter of workhead spindle flange................ 12" Hole through workhead spindle...................... 1 11/16" SPEEDS & FEEDS Table speeds unlimited between..................... 0 to 18 FPM Workhead speeds adj. from...... 60 cy?ac?70?105?140?210 RPM Cross feed dial graduation represents dia. of work. .001" Power feed adjustment.............................. 1 to 6 Teeth Each ratchet tooth w/coarse gears... (std)......... .002" Each ratchet tooth w/fine gears..... (optional).... .000138" DRIVE Pump drive motor......................... 2 HP, AC?1200 RPM Workhead motor: 1 1/2?2?3 Tapered HP, AC 600?900?1200?1800 RPM Wheelhead motor.......................... 5 HP, AC?3600 RPM Coolant pump motor....................... 1/4 HP, AC?1800 RPM GENERAL DATA Capacity of oil reservoir..................... 35 Gallons Capacity of coolant tank...................... 50 Gallons Length & width of base on floor............... 115" x 36 1/2" Floor space (total) without coolant tank...... 144" x 60" Floor space (total) with coolant tank......... 144" x 66"