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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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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
- ● Spindle and Grinding Wheel System: High-Speed Spindle, Fixed-Speed Spindle Motor, Fixed Grinding Wheel, Adjustable Grinding Wheel
- ● Worktable and Tailstock System: Manual Tailstock Adjustment, Adjustable Worktable, T-slot Worktable
- ● Feed System: High-Precision Ball Screws, Linear Guideways
- ● Cooling and Lubrication: Coolant Injection System, Automatic Lubrication System
- ● Clamping: Standard Fixtures, Pneumatic Fixtures, U-shaped Fixtures
- ● Other: Rotary Chuck, Centers, Follow Rest, Workpiece Measuring Instrument, Grinding Wheel Dressing Fixture, Lighting and Blower System, Human-Machine Interface (HMI), Protective Covers
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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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Frequently Asked Questions
Absolutely. Minnuo has a fast-responding pre-sales team. As long as I provide part drawings, you can recommend a suitable external cylindrical grinding machine within 10 minutes. For multiple machines or production lines, a complete configuration plan will be provided within 5 working days.
Yes. Our company has comprehensive manufacturing capabilities. Whether it’s machine structure, spindle speed, motor power, or control system, I can customize the external cylindrical grinding machine according to my specific machining requirements.
Our company equipped with high-end machining centers from top global brands, ensuring the precision and stability of all key components in each external cylindrical grinding machine. Every machine undergoes complete quality testing before delivery, with detailed inspection reports provided.
For standard models, we have stock available for fast delivery. For customized external cylindrical grinding machines, the delivery time is usually 30 to 45 working days, depending on the complexity of the project.
All machines come with a one-year warranty. During the warranty period, I can receive free repair services. If any issue arises, your support team offers 24/7 technical service via remote video, phone, or on-site assistance to help me resume production quickly.
External cylindrical grinding machines are ideal for precision grinding of external round surfaces, including shafts, sleeves, rollers, and pump bodies. They are suitable for various materials such as steel, stainless steel, and carbide, depending on wheel and process configuration.
Our external cylindrical grinding machines can achieve roundness and dimensional accuracy within ±0.002mm under standard conditions. For applications with strict surface finish requirements, I can also upgrade to high-precision spindles and dynamic balancing systems.
Yes. Our external cylindrical grinding machine supports modular upgrades and configuration changes. I can add automation, upgrade control systems, or change fixtures as needed. This flexibility helps me adapt to evolving production needs and extends the machine’s value over time.
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