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Mark Surface Grinders

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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 guide ways 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

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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

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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

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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

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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 CNC Series Specifications LargeX-LargeXX-Large

Process Examples of CNC Grinding in Detail

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Surface Grinding to a Programmed Cycle

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Canned Cycle Plunge Grinding

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Flexible Criss-Cross Grinding
The Cross-Feed Is Infinitely Variable According To Economic Grinding Requirement

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Precision Pitch Grinding
Rack Type Work-Piece Is Grinded By Form Wheel

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Form Grinding (Option)
Profile Wheel Can Be Dressed With Vertical/Cross-Feed Axes

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Automatic Step-Grinding (Option)
Different Steps Can Be Programmed To Grind In Automatic Cycle

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

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Contour Grinding (Option 2)
To Generate Curvatures On Vertical/Cross Feed 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″.

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