Manufacturer:
Model:
Description:
340 20 DE CINCINNATI TWIN GRIP CENTERLESS GRINDER
S/N 350520H80-0043 Year: 1980
STANDARD CATALOG SPECIFICATIONS
CAPACITY (Work rest bar grinding fixtures are not
included as standard equipment.)
Standard thru feed and infeed work rests...... 1/2" 3" dia.
Maximum work diameter......................... 6"
(Depending on which work rest is ordered)
WHEELS (Not included as standard equipment.)
Grinding Wheel Regulating Wheel
12" Hole 6" Hole
20" Width only 20" Width only
24" Maximum diameter 14" Maximum diameter
16" Minimum diameter 10 1/4" Minimum 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: 11 300 RPM, 50 cycle: 12 to 315 RPM
Low range: 60 cycle: 11 56 RPM, 50 cycle: 12 to 59 RPM
High range: 60 cycle: 56 300 RPM, 50 cycle: 59 to 315 RPM
GRINDING WHEEL DRIVE
Enclosed motor on end of machine.............. 40 HP
Constant speed: N.E.M.A. dim., 50 or 60 cycle, 3 phase,
208 or 575 single; 230/460 dual voltage A.C. drives grinding wheel only.
Power transmission............................ 8 V belts
REGULATING WHEEL DRIVE
Motor mounted on upper slide 60 cycle: 2 HP @ 1200 RPM
50 cycle: 2 HP @ 1500 RPM
Constant speed; N.E.M.A. dim., 50 or 60 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.
CUTTING FLUID 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 hand wheel graduated in fifty millionths of an inch.
Thru feed push button compensation fine and coarse feed.
WHEEL TRUING
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.................................. 25,000 lbs. approximate
EQUIPMENT & FEATURES
Hydraulic grinding wheel truing with hand diamond advance.
Hydraulic regulating wheel truing with hand diamond advance.
Servo transmission.
Attached electrical.
Specifications are deemed accurate, however, subject to verification or prior sale.
