340‑20 DE CINCINNATI TWIN GRIP CENTERLESS GRINDER

340‑20 DECINCINNATITWIN GRIP CENTERLESS GRINDER
S/N 6M20H5S-90 Year: 1964

STANDARD CATALOG SPECIFICATIONS

CAPACITY(Work rest bar grinding fixtures are not
included as standard equipment.)
Standard thru feed and in feed workrests...... 1/2‑3 dia.
Maximum work diameter......................... 6
(Depending on which work rest is ordered)

WHEELS(Not included as standard equipment.)

Grinding WheelRegulating Wheel
12 Hole 6 Hole
20 Width only 20 Width only
24 Maximum diameter 14Maximum diameter
16 Minimum diameter 10‑1/4Minimum diameter

GRINDING WHEEL SPINDLE
High grade alloy steel, heat treated, titanium dioxide coated ground. Filmatic bearings self-adjusting for variations in load with plain thrust bearings in center. Automatic circulating lubrication under pressure.

REGULATING WHEEL SPINDLE
High grade alloy steel, heat treated, titanium dioxide coated and ground. Two piece bronze front and rear bearings; anti‑friction radial and thrust bearing on end. Automatic pressure lubrication.

REGULATING WHEEL SPEEDS
Number: Infinite
Range: 60 cycle:11‑300RPM, 50 cycle: 12 to 315RPM
Low range: 60 cycle: 11‑56RPM,50 cycle: 12 to 59RPM
High range: 60 cycle: 56‑300RPM, 50cycle: 59 to 315RPM

GRINDINGWHEEL DRIVE
Enclosed motor on end of machine.............. 40 HP
Constant speed: N.E.M.A. dim., 50 or60 cycle, 3 phase,
208 or 575 single; 230/460 dual voltage A.C. drives grinding wheel only.
Power transmission............................ 8 V‑belts

REGULATINGWHEELDRIVE
Motor mounted on upper slide ‑ 60cycle: 2 HP @ 1200RPM
50cycle: 2 HP @ 1500RPM
Constant speed; N.E.M.A. dim., 50 or60 cycle, 3 phase,
208 or 575 single; 230/460 dual voltage A.C.
Power transmission............................V‑belt chain
Speed changes:........ Variable pitch sheaves and gear shift.

CUTTINGFLUID EQUIPMENT
Individual motor driven cutting fluid pump capacity 30GPM
Cutting fluid tank capacity................... 75 gallons

SIZING ADJUSTMENT
Accurate adjustment of regulating wheel slide by in feed handwheel graduated in fifty millionths of an inch.
Thru feed push button compensation fine and coarse feed.

WHEELTRUING
Independent truing units for each wheel. Hydraulic diamond truing for grinding and regulating wheel. Diamond not included as standard equipment.
(Profile both sides.)

DIMENSIONS
Floor space.............................95 1/4 x 140 3/8
Weight..................................25,000lbs. approximate

EQUIPMENT FEATURES
Hydraulic grinding wheel truing with hand diamond advance.
Hydraulic regulating wheel truing with hand diamond advance.
In feed compensation unit.
Attached electrical.
Servo transmission.

Specifications are deemed accurate, however, subject to verification or prior sale.
All exchange units/returns must be shipped within 30 days. All exchange units/returns must be shipped using DDP terms - Grinders Clearing House, Inc. dba GCH Machinery, is not responsible for any customs formalities or shipping costs.

If Grinders Clearing House, Inc. dba GCH Machinery does not receive exchange/core unit back within 30 days, GCH will invoice FULL replacement cost (OUTRIGHT Cost) to customer.