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Grinding Diameter: Ø8–320mm · Center Height: 180mm

The M1332H is a manual cylindrical grinding machine purpose-built for extra-long workpieces, with grinding lengths of up to 3000mm and diameters from Ø8 to Ø320mm. This machine is widely used in industries that demand high-precision, high-stability, and large-part OD grinding, such as power generation, mining, and transportation equipment.

M13 Series

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Customized design

Why Choose Our CNC Solutions

Key Features

  • Extra-Long Grinding Capacity (2000–3000mm) Designed for components that exceed conventional grinder limits, supporting multi-meter shafts and rollers.
  • Wide Diameter Range: Ø8–320mm Suitable for both small cylindrical tools and large machine element regrinding.
  • Stable Tailstock and Optional Dual Steady Rests Enable full-length support and prevent deflection during long passes.
  • Hydrodynamic Spindle Bearings Offer high-speed stability and superior surface finish across the part length.
  • Manual Table Feed with Fine Adjustment Ensures smooth movement, accurate depth control, and low friction even over long spans.
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Recommended Configurations

  • Dual Steady Rests: Prevent deflection of shafts >2000mm during long-duration grinding.
  • In-process Diameter Micrometer: Monitors live grinding dimensions for tight-tolerance parts.
  • External Dresser with Positioning Arm: Maintains optimal wheel profile throughout extended grinding passes.
  • Bed Extension Support Blocks: Reinforces rigidity during heavy-duty regrind cycles.
  • Automatic Coolant Circulation Unit: Removes heat buildup and ensures clean work zone.
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Application Case

  • Client: Railway Axle Refurbishment Center (Eastern Europe)
  • Workpiece: Ø220mm x 2800mm hardened steel axle shafts
  • Setup: M1332H with dual steady rests, white corundum wheel, coolant filter system
  • Results: Roundness achieved: ≤ 5 μm over 2.8m length, surface finish: Ra 0.30 μm, cycle time: 28 minutes per shaft, achieved full-length accuracy without secondary passes or reclamping.
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Product Specifications

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