Mark Surface Grinders

Mark Saddle Series

Longitudinal hydraulic - Double vee-ways
Vertical - Manual
Rapid up and down - Optional
Auto down feed - Optional
Hardened and Ground track type ball roller guideways with precision certified dimensioned steel alloy balls for the table longitudinal (left/right) movement provide a sensitive and smooth feed motion by the operator.
Straightness of table movement in longitudinal direction 0.02mm/m.
Straightness of table movement in transverse direction 0.02mm/m.
Vertical travel of wheelhead square with table in transverse plane 0.01mm/100mm.

Click here for Saddle Series Specifications

Mark Over Arm Series

Cross Slideway - Dovetail-type gibbed ways
Longitudinal slideway - Double vee-way
Longitudinal - Hydraulic
Cross - Automatic
Vertical - Rapid up/down, manual
Auto down feed - Optional
Straightness of table movement in longitudinal direction 0.02mm/m.
Straightness of table movement in transverse direction 0.02mm/m.
Vertical travel of wheelhead square with table in transverse plane 0.01mm/100mm.

Click here for Over Arm Series Specifications

Mark Column Series

Cross / Longitudinal Slideways - Double vee-way
Longitudinal - Hydraulic
Cross - Automatic
Vertical - Rapid up/down, manual
Auto down feed - Optional
Straightness of table movement in longitudinal direction 0.02mm/m.
Straightness of table movement in transverse direction 0.02mm/m.
Vertical travel of wheelhead square with table in transverse plane 0.01mm/100mm.

Click here for Column Series Specifications

Mark Double Column Series

Cross Slideway - Flat-dovetail type gibbed ways
Longitudinal Slideway - Double vee-way
Longitudinal - Hydraulic
Cross - Automatic
Vertical - Rapid up/down, manual
Auto down feed - AD1 standard
Controller - FANUC
Straightness of table movement in longitudinal direction 0.02mm/m.
Straightness of table movement in transverse direction 0.02mm/m.
Vertical travel of wheelhead square with table in transverse plane 0.01mm/100mm.

Click here for Double Column Series Specifications

Mark CNC Series

Cross / Longitudinal Slideway - Double vee-ways
Longitudinal - Hydraulic
Cross - CNC Controlled System
Vertical - CNC Controlled System
Auto down feed - AD1 standard
Controller - FANUC
Straightness of table movement in longitudinal direction 0.02mm/m.
Straightness of table movement in transverse direction 0.02mm/m.
Vertical travel of wheelhead square with table in transverse plane 0.02mm/100mm.

Click here for Double Column Series Specifications: Large - X-Large - XX-Large

Process Examples of CNC Grinding in Detail


Surface Grinding To A Programmed Cycle	Canned Cycle Plunge Grinding

Flexible Criss-Cross Grinding The Cross-Feed Is Infinitely Variable According To Economic Grinding Requirement	Precision Pitch Grinding Rack Type Work-Piece Is Grinded By Form Wheel

Form Grinding (Option) Profile Wheel Can Be Dressed With Vertical/Cross-Feed Axes	Automatic Step-Grinding (Option) Different Steps Can Be Programmed To Grind In Automatic Cycle

Contour Grinding (Option 1) To Generate Curvatures On Vertical/Cross Feed Axes	Contour Grinding (Option 2) To Generate Curvatures On Vertical/Longitudinal Axes

The Mark Surface Grinders offer simple machine design and controls. The main machine parts are annealed twice during the manufacturing process, to eliminate any form of stress during machining and internal stress developed during the foundry process. All ways are turcite coated and automatically lubricated.

The hydraulic system is designed to assure low temperature rise, and all machines starting from 16" x 28" feature an additional air cooling system to guarantee high accuracies during grinding, and shock free performance.

The grinding spindles are of cartridge type design, well balanced and absolutely vibration free with a vibration displacement of 1.5 micron and run-out of within 0.00004".