350-20 AE CINCINNATI CENTERLESS GRINDER

350-20 AECINCINNATICENTERLESS GRINDER

S/N 3566A0185-0028 Year: 1985

STANDARD SPECIFICATIONS

Work Capacity
Maximum work piece diameter………………………………….. 6.0
Minimum work piece diameter………………………………….. 0.50

Grinding Wheel
Maximum new wheel diameter………………………………….. 24
Minimum worn wheel diameter…………………………………. 17
Maximum wheel width………………………………………….. 20
Wheel mounting hole diameter…………………………………. 12

Grinding Wheel Speed
Surface speed……………………………………………………. 8,500 ft/min.
(Maximum diameter wheel)…………………………….. @ 1352RPM

GrindingWheel Drive Motor
326 T Framed– 1800RPM…………..…………………………..50 HP
Drive belts……………………………………………………….. 3V850

Grinding Wheel Dresser
Traverse drive motor (variable speed)…………………………… 56 C Frame
Worm gear reducer ratio…………………………………………. 10:1
Traverse rate(across wheel – IPM)……………………………… 1 to 30
Traverse rate(across wheel – mm/min.)…………………………. 25, 4 to 762
Maximum traverse distance………………………………………. 22.25 (across wheel)
Maximum profile depth…………………………………………... 0.50
Diamond holder – single point type………………………………. 0.437
Diamond compensator
- electric solenoid…………………………………….. 0.0005
- optional stepping motor…………………………….. 0.00001
- maximum compensation……………………………. 0.002(with stepping motor)

Regulating Wheel
Maximum new wheel diameter………………………………….. 15
Minimum worn wheel diameter………………………………….. 11
Mounting hole diameter………………………………………….. 6
Maximum width………………………………………………….. 20
Maximum RPM(during dressing)……………………………….. 300RPM
Minimum RPM………...………………………………………… 15RPM
Surface speed (ft/min.)……………………………………………. 60 to 500
Surface speed (m/Min.)…………………………………………… 18, 3 to 152
Programmed surface speed is maintained constant as regulating wheel is dressed to smaller diameter.
Drive motor (variable speed)……………………………………… 3.2 HP
Drive ratio………………………………………………………… 8.333:1
Regulating wheel housing swivel……………………. 6 to – 1 1/2 (work feed angle)

Regulating Wheel Dresser
Traverse drive motor (variable speed)………….……………….. 56C Frame
Worm gear reducer ratio………………………………………… 10:1
Traverse rate (across wheel – IPM)……………………………… 1 to 30
Traverse rate (across wheel – mm/min.)………………………… 25, 4 to 726
Maximum traverse distance……………………………………… 21
Maximum profile depth………………………………………….. 0.50
Diamond holder – single point………………………………….. 0.437 (Shank diameter)
Diamond compensator
-manual advance dial…………………………………………. 0.0005 (division)
-optional stepping motor……………………………………… 0.00001 (resolution)
-maximum compensation (with stepping motor)…………….. 0.002
-dresser swivel – degrees……………………………………... 6 to –1 1/2

Two-Way Compensator
Stepping motor………………………………………………… 200 steps/revolution
Harmonic drive ratio…………………………………………… 160:1
Recirculating ball screw……………………………………….. 8 mm pitch
Compensateor resolution……………………………………….. 0.00001
Position in grate (max)…………………………………………. 2.5 /min.

Swivel Plate
Swivel to front (measured to adjust or)………………………….. 0.50
Swivel to rear (measured to adjust or)…………………………... 0.50
Swivel indicator (division dial indicator)…………………….… 0.0001

Lower Slide
Maximum travel……………………………………………….. 10
Slide clamps (2)……………………………………………….. Manual

Upper Slide
Maximum travel………………………………………………. 6.50
Slide clamps (2)……………………………………………….. Manual

Hydraulic System
Reservoir capacity…………………………………………….. 29.5 gallon
Oil specification………………………………………………. CM P-38
Viscosity (S.U.S. @100F)……………………………….149 to 182
ISO Viscosity grade……………………………………….. ISOVG 32
Military spec.equivalent…………………………………..MIL-H-4600 IA Type 1
Pump capacity (without in feed)…………………………….…. 4.6 gallon per minute
Pump motor………………………………………………….... 1.5 HP 1800 RPM
Frame……………………………………………… 145T Nema CFace Mount
Pump capacity (with in feed)………………………………… 8.8 gallon per minute
Pump motor…………………………………………………. 3 HP 1800RPM
Frame……………………………………………… 182T Nema C Face Mount
Pressure filter……………………………………………..…. Throw-Away Type Element
Bypass pressure…………………………………….… 25 psi
Replacement element - CM No…………………………….. 3634910
-Schroeder No……………………… CC3
Dual elementfilter (optional)
Main systempressure…………………………………………. 300 psi

Lubrication System
Reservoir capacity……………………………………………... 7.3 gallon
Oil specification……………………………………………….. CM P-47
Viscosity (S.U.S. @100 F)………………………………..317 to 389
ISO Viscosity grade……………………………………….. ISOVG 68
Military spec. equivalent…………………………….MIL-L-46017 Type 1 Medium
System pressure……………………………………………….. 300 psi
Lubrication cycle frequency…………………………………… 5 times per hour
System Type: Positive displacement, progressive serieswith cycle
complete pressureswitch.
Distributor Points: Grinding wheel dresser
...........................Regulating wheeldresser
...........................Swivel plate
.......................... Lower slide
...........................Upper slide
...........................Regulating wheel spindle bearings
...........................Regulating wheel drive box

Lubrication oilis also supplied at a constant pressure to the regulatingwheel spindle bearingsand drive unit.

Lubrication cyclefrequency and points lubricated may vary due to optional/special equipmentsupplied.

Cutting Fluid System
Tank capacity…………………………………………………. 150 gallon
Pump capacity………………………………………………… 90 gallon per minute
Pump motor…………………………………………………… 1/2 HP
Optional system……………………………………………….. Hydrant and Sewer

Machine Weight
25,000 lbs.

EQUIPMENT FEATURES
Jib crane.
Grinding wheel stepper dresser.
Grinding wheel balancer.
Coarse– Fine compensation stepper.
Diameter–Compensation grinding wheel dress.
8500 S.F.P.M.
Separate electric.

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.