Cincinnati No. 350-20RK, centerless grinder, 6" capacity, 24" grinding wheel, 50 HP, 300 RPM, 2001

CINCINNATI #350-20 RK CNC centerless grinder, 2001 model. Features 6" capacity, 24" grinding wheel diameter with 50 HP and 300 RPM, 14" regulating wheel with 2 HP and 315 RPM, suitable for 1/2"-3" size capacity.
350 20 RK CINCINNATI CENTERLESS GRINDER
S/N HK-31088 YEAR: 2001
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: 27,500 lbs. approximate
EQUIPPED WITH
Servo / servo GW truing.
Man / servo Reg truing.
Servo Reg drive.
Servo infeed.
Siemens controls/motors.
SB 4500 SBS balancer.
20” Thrufeed workrest.
480 volts.
AB 1336 Plus II drive.
Workrest extension casting.
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.