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500/750mm · Diameter Ground (O.D): 8–200mm · Max. Workpiece Weight: 50kg
The MGK1320 / MGK1320M is a compact CNC external cylindrical grinding machine engineered for precision finishing of small to medium-sized round parts. With a center height of 135mm and grinding capacity up to Ø200mm, it delivers high accuracy for tightly toleranced shaft components and rotating precision parts.
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Why Choose Our CNC Solutions
Key Features
- ● Precision O.D. Grinding for Shafts and Cylindrical Parts: Suited for grinding outer diameters, shoulders, and tapers with high repeatability.
- ● Distance Between Centers: 500mm or 750mm: Accommodates various shaft lengths, perfect for small batch and serial production.
- ● High-Rigidity Bed with Cast Structure: Provides vibration-free support for ultra-smooth surface finishes.
- ● Full CNC or Semi-CNC (M Variant): Allows flexibility between automation and manual intervention based on production scale.
- ● Max. Workpiece Weight: 50kg: Easily supports hardened steel, alloy, or stainless steel shafts with stability.
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Recommended Configurations
- ● Spindle and Grinding Wheel System: Hydrostatic/rolling spindle, grinding wheel motor (variable frequency control), automatic dresser (diamond dressing/one-point dressing)
- ● Workpiece Spindle and Tailstock System: Workpiece spindle (manual/servo), precision chuck or centers, adjustable tailstock (hydraulic/manual)
- ● Feeding System: High-precision ball screw and linear guide, automatic feeding and gap compensation control
- ● Cooling and Chip Removal System: Cooling liquid circulation and spray system, high-efficiency filtration system, chip conveyor
- ● Control System and Automation: CNC or PLC control, Human-Machine Interface (HMI), automatic grinding cycle control (rough grinding/fine grinding/final grinding)
- ● Measurement and Compensation System: Online measurement system (contact/non-contact), laser or inductive displacement sensor, automatic wear compensation
- ● Lubrication and Maintenance System: Centralized lubrication system, precise oil supply and oil quantity monitoring
- ● Fixtures and Accessories: Rotary chuck, centers, follow rest, specialized workpiece fixtures
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Application Case
- ● Client: Precision Gear Manufacturer (Japan)
- ● Workpiece: Hardened steel shafts Ø25mm × 480mm
- ● Setup: MGK1320M + full enclosure + in-process gauge + Siemens CNC
- ● Results: Achieved roundness: ≤1.5 μm, Cylindricity: ≤3 μm, surface finish: Ra 0.3 μm, manual changeover time reduced by 45% due to CNC automation.
- ● Client feedback: "Compact size, but industrial-grade precision—perfect for shaft series production."
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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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