Machine Name | Type | Description
The Wuxi M250A is a heavy-duty internal grinder designed for large-bore components such as bearing rings, gear blanks, cylinder liners, and motor housings. It is widely used in automotive, aerospace, and general heavy machinery manufacturing for high-precision bore finishing.
Built with a reinforced bed and a high-frequency spindle system, this machine delivers excellent roundness and surface finish even on deep bores. The hydraulic table traverse and automatic grinding cycle improve productivity while maintaining consistent accuracy. Each unit undergoes strict factory inspection to ensure long-term stability and low maintenance.
With ample stock available, we guarantee fast delivery and responsive technical support. The M250A offers reliable performance and ease of operation, making it a trusted choice for shops requiring precise internal grinding on larger workpieces.
$ Click to Get Price
Machine Parameters
Max. internal grinding diameter: 250 mm
Min. internal grinding diameter: 50 mm
Max. grinding depth (standard): 300 mm
Max. grinding depth (with extended spindle): 450 mm
Workpiece swing diameter over table: 500 mm
Max. workpiece length: 500 mm
Workhead speed (stepless): 60–500 r/min
Internal grinding spindle speed: 6000–12000 r/min (variable)
Grinding wheel size range (OD × W × ID): 30–80 × 10–32 × 6–25 mm
Workhead spindle taper: MT No.6
Table longitudinal travel (hydraulic): 800 mm
Table hydraulic speed: 0.5–8 m/min
Roundness accuracy: ≤ 0.002 mm
Surface roughness: Ra ≤ 0.32 μm
Spindle motor power: 4.5 kW
Net weight: ~3800 kg
Good machine would be sold fast - Contact us for details about prefered ones
Send Your Inquiry
Please describe product category, size, material, color, quantity and packaging requirement when available.