sales@libertymachinery.com
sales@libertymachinery.com
Paragon Centerless Grinding Machine RC-12
Serial No. 122021
New – 1996
SPECIFICATIONS:
Grinding Range…………0.039″ – 1.18″
Grinding Wheel Size…………12″ x 5.9″ x 4.72″(Bore)
Regulating Wheel Size…………8.07″ x 5.9″ x 3.54″(Bore)
Grinding Wheel Speed (Peripheral Speed)…………6,561 ft./min
Regulating Wheel Speed…………21 RPM – 333 RPM (7 Speeds)
Upper Slide Feed Graduation…………3.5mm Per Rev. in 0.05mm Grad.
Upper Slide Micro Feed Graduation…………0.1mm Per Rev. in 0.001mm Grad.
Lower Slide Feed Graduation…………10mm Per Rev. in 0.05mm Grad.
Dressing Device Graduation…………1.25mm Per Rev. in 0.01mm Grad.
Regulating Wheel Tilt Angle…………+/- 5 Deg.
Regulating Wheel Swivel Angle…………+/- 5 Deg.
Regulating Wheel Dresser…………+/- 5 Deg.
Grinding Wheel Motor…………7.5 HP
Regulating Wheel Motor…………1 HP
Hydraulic Pump Motor…………1 HP
Coolant Pump Motor…………1/8 HP
Dimensions – Approximate…………75″(L-R) x 61″(F-B) x 56″(H)
Weight – Approximate…………3,800 Lbs.
Paragon Centerless Grinding Machine RC-12 EQUIPPED WITH:
Automatic Infeed Attachment
Foot Pedal Control for Infeed
Infeed Work Rest and Carbide Blade
Spindle Motor Pressure Switch
Seven Speed Gearbox: 21 RPM, 31 RPM, 47 RPM, 64 RPM, 93 RPM, 140 RPM, 333 RPM
Grinding and Regulating Wheel with Hydrodynamic Bearings
Hydraulic Traversed Grinding and Regulating Wheel Dresser
Profile Template for Grinding and Regulating Wheel Dresser
Extra Wide V-Guideways
Hydraulic System
Hydraulic Oil Cooler
Coolant Tank With Pump and Paper Filter
Work Lamp
*Preliminary Specifications, Subject to Verification.
Centerless grinding on a Paragon centerless grinding machine is a precision grinding process used to machine cylindrical workpieces with high accuracy and surface finish. Unlike conventional grinding methods, centerless grinding does not require the use of a centering device or chuck to hold the workpiece in place. Instead, the workpiece is supported by a regulating wheel, while a grinding wheel removes material from the workpiece.
In centerless grinding, the workpiece is fed through the grinding machine between the grinding wheel and the regulating wheel. The regulating wheel controls the rotational speed and feed rate of the workpiece, while the grinding wheel on a Paragon centerless grinding machine removes material by making contact with the workpiece. The geometry of the grinding wheel is carefully set to achieve the desired diameter, roundness, and surface finish of the workpiece.
Read more about centerless grinding on machines HERE and HERE.
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