sales@libertymachinery.com
sales@libertymachinery.com
Royal Master Centerless Grinder TG-12×4
Serial No. 1849
Year Built – 1990
SPECIFICATIONS:
Infeed Capacity – Diameter…………0.004″ – 1.5″
Thrufeed Capacity:
– Diameter…………0.004″ – 1.5″
– Length…………12′ (up to 0.5″ Diameter)
Grinding Wheel:
– Maximum Size…………12″ Diameter x 4″ Wide
– Minimum Size…………10″ Diameter x 0.25″ Wide
– Speed – Constant…………2,040 RPM
Regulating Wheel:
– Maximum Size…………6″ Diameter x 4″ Wide
– Minimum Size…………4″ Diameter x 0.125″ Wide
– Speed – Infinitely Variable…………20 – 500 RPM
– Thrufeed Grinding Tilt – Maximum…………6 Degrees L or R
– Taper Grinding Swivel – Maximum…………5 Degrees L or R
Main Drive:
– Power………….7.5 HP
– Speed…………1,725 RPM
Hydraulic Tank Capacity…………4 Gallons
Dimensions – Catalog…………54″ x 30″ x 66″ (H)
Weight – Catalog…………2,300 Lbs.
Royal Master Centerless Grinder TG-12×4 EQUIPPED WITH:
Automatic Cycle Attachment
Diamond Contour Dressers
In-Feed Work Rest with air Ejector & Positive Stop
Red Lion Controls DT3A Digital Tachometer & Analogue Load Meter
Coolant Tank & Pump
Bijur Lubrication System
Work Light
Machine Documentation
*Catalog Specifications Subject to Verification
Centerless grinding is a precision grinding process used to machine cylindrical workpieces with high accuracy and surface finish. Unlike conventional grinding methods, centerless grinding on a Royal Master centerless grinder TG-12×4 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 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 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.
Centerless grinding offers several advantages like high productivity, as multiple workpieces can be ground simultaneously using a continuous feed mechanism. The process on a Royal Master centerless grinder TG-12×4 is also suitable for long, slender workpieces that may be difficult to support using traditional grinding methods.
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