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500/750mm · Diameter Ground (O.D): 8–200mm · Max. Workpiece Weight: 50kg
The MGK1620 / MGK1620M is a high-precision CNC external cylindrical grinding machine designed for tight-tolerance grinding of small to medium-diameter workpieces. With a grinding range of Ø8–200mm, and a center distance of 500mm or 750mm, it offers an ideal platform for both single-piece precision machining and small-batch shaft production.
MGK Series
Spare parts supply
On-site installation service
Customized design
Why Choose Our CNC Solutions
Key Features
- ● High-Accuracy O.D. Grinding (Ø8–200mm): Ideal for bearing fits, journal grinding, and stepped shafts with precision control.
- ● Compact Dual-Length Design (500mm/750mm): Supports shorter or extended workpieces without compromising machine rigidity.
- ● Semi or Full CNC Flexibility: MGK1620 is fully CNC-driven, while MGK1620M offers manual input with digital feedback.
- ● Hydrodynamic or Hybrid Wheel Spindle: Offers excellent surface finish and thermal performance over long runs.
- ● Load Capacity Up to 50kg: Supports tool steel, alloy steel, and hardened shafts for precision industries.
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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: Industrial Motor Shaft Supplier (Poland)
- ● Workpiece: Hardened shafts Ø28 × 600mm
- ● Setup: MGK1620 + GSK CNC + in-process gauging + hydraulic tailstock
- ● Results: Bore concentricity deviation: < 2μm, surface finish: Ra 0.25 μm, repeat cycle time reduced by 38% over manual platform.
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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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