Cincinnati No. 350-20 Mdl. RK, centerless grinder, 6" diameter work capacity, 20" thru-feed work rest, 24" diameter x 20" width grinding wheel, 50 HP, 1995

Cincinnati #350-20 RK CNC Centerless Grinder, 20" Thrufeed Workrest, SBS Balancer, Servo Infeed
350 20 CINCINNATI CENTERLESS GRINDER
S/N 9166A0195-004
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................... 50 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 30 GPM
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 pace: 95 1/4" x 140 3/8"
Weight: 25,980 lbs. approximate
EQUIPPED WITH
SBS Balancer.
Servo Comp / Servo Traverse. (Grinding Wheel Truing)
Manual Comp / Servo Traverse. (Regulating Wheel Truing)
Servo Infeed.
Servo Regulating Wheel.
Jib Crane Assembly.
Mitsubishi Controls.
Mitsubishi J4 Drives.
Kollmorgen 5700 Drive.
Altivar 71 Grinding Wheel Drive.
** Includes electro hydraulic in feed.
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.