Machine Name | Type | Description
The Shanghai No.3 MM1420A is designed for high-precision cylindrical and internal grinding of workpieces such as shafts, stepped parts, and tapered components. It is widely used in toolrooms, aerospace, automotive, and general precision machining workshops for both small-batch and production runs.
Built with a robust bed and high-damping spindle system, this universal grinder delivers exceptional roundness and surface finish. The workhead can swivel for taper grinding, and the internal grinding attachment is included for versatile operations. Each machine undergoes strict factory inspection to ensure long-term stability and reliability.
With ready stock available, we guarantee fast delivery and prompt after-sales support. The MM1420A offers consistent accuracy and low maintenance, making it a dependable choice for demanding grinding applications.
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Machine Parameters
Max. grinding diameter: 200 mm
Min. grinding diameter: 8 mm
Max. grinding length: 500 mm
Center height: 125 mm
Max. workpiece weight between centers: 50 kg
Grinding wheel size (OD × W × ID): 300 × 32 × 127 mm
Grinding wheel speed: 1500 r/min
Workhead speeds (stepless): 60–500 r/min
Table swivel range: +3° / -5°
Internal grinding spindle speed: 18000 r/min
Max. internal grinding depth: 50 mm
Roundness accuracy: ≤ 0.001 mm
Surface roughness: Ra ≤ 0.16 μm
Net weight: ~2500 kg
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