350-20 AE CINCINNATI CENTERLESS GRINDER

350-20 AECINCINNATICENTERLESS GRINDER

S/N 3566A0185-0013 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)…………………………… 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 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 wheelhousing swivel……………………. 6 Degree to – 1 1/2 Degree (work feedangle)

Regulating 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 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 Degrees to –1 1/2 Degrees

Two-Way Compensator
Stepping motor………………………………………………… 200 steps/revolution
Harmonic drive ratio…………………………………………… 160:1
Recirculating ball screw……………………………………….. 8 mm pitch
Compensator resolution……………………………………….. 0.00001
Positioning rate (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. @100 Degrees F)……………………………….149 to 182
ISO Viscosity grade……………………………………….. ISO VG 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………………………………………………145 T Nema C Face 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 element filter (optional)
Main system pressure…………………………………………. 300 psi

Lubrication System
Reservoir capacity……………………………………………... 7.3 gallon
Oil specification……………………………………………….. CM P-47
Viscosity (S.U.S. @100 Degrees 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 series with cycle
complete pressure switch.
Distributor Points: Grinding wheel dresser
Regulating wheel dresser
Swivel plate
Lower slide
Upper slide
Regulating wheel spindle bearings
Regulating wheel drive box

Lubrication oil is also supplied at a constant pressure to the regulating wheel spindle bearings and drive unit.

Lubrication cycle frequency and points lubricated may vary due to optional /special equipment supplied.

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
25,980 lbs.

EQUIPMENT FEATURES
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.