Cylindrical grinding machine RSM 750 C

external cylindricalinternal cylindricalworkpiece

Product description
The RSM 750 C is a conventional cylindrical grinding machine designed for long and heavier workpieces. It is suitable for single-part machining and small-series production and includes an integrated internal grinding unit for added flexibility. The machine features a large rigid bed, ground guides and dedicated drives for the work spindle, grinding spindle and hydraulic system, providing a reliable platform for precision external and internal grinding of larger components.

Highlights

• External and internal cylindrical grinding
• Hydrostatic spindle bearings for superior surface accuracy
• Heavy machine frame to accommodate large workpieces
• Swiveling headstock for conical grinding of short parts
• Integrated rapid traverse on X-axis with manual return
• Comprehensive standard accessories package

Technical specifications
Working area
Center height: 135 mm
Grinding diameter: 8 mm - 200 mm (with steady rest: 8 mm - 60 mm)
Grinding length: 750 mm
Inside grinding diameter with rest: 35 mm - 100 mm
Inside grinding diameter without rest: 25 mm - 100 mm
Inside grinding depth: 125 mm
Max. workpiece weight between centers: 80 kg
Grinding wheel feed (min.): 0.0025 mm
Chuck diameter: 200 mm
Table swivel range: -2° / +6°
Wheel peripheral speed: 35 m/s
Work spindle speeds (50 Hz): 25 - 380 1/min

Travels
Grinding head travel: 200 mm

Feed
Table feed, infinitely variable: 0.1 m/min - 4 m/min
Feed per hand-wheel rotation (X-axis): 0.5 mm
Feed per scale division (X-axis): 0.0025 mm

Headstock
Working headstock swivel range: 0° - 45°
Working spindle taper: 4 MT

Grinding headstock
Grinding spindle speed: 1,670 1/min
Grinding headstock swivel range (r+l): 10°
Inside grinding spindle speed: 10,000 1/min

Tailstock
Tailstock taper: 4 MT
Tailstock quill stroke: 25 mm

Drive capacity
Motor rating - grinding spindle / hydraulic pump: 5.5 / 0.75 kW
Motor rating - inside grinding: 1.1 kW
Motor rating - headstock / coolant pump: 0.75 / 0.13 kW

Measures and weights
Grinding wheel dimensions: 400 x 50 x 203 mm
Inside grinding wheel max. dims: 50 x 40 x 16 mm
Inside grinding wheel min. dims: 45 x 35 x 10 mm
Overall dimensions (L x W x H): 3 m x 1.8 m x 1.65 m
Weight: 3,500 kg

Additional features

• Large heavy-duty bed supports workpieces up to long lengths and large diameters
• Wide, precision-ground guides ensure consistent accuracy along the workpiece
• Table can be operated manually by handwheel or automatically via adjustable hydraulic feed
• Two-step automatic positioning with adjustable stop for repeatable operations
• Robust feed valve for fine control of Z-axis micro-feed and adjustable stop time at end of stroke
• Standard internal grinding device and robust swiveling grinding head for versatile machining