Cylindrical grinding machine Servogrind® RSM 1500 NC

external cylindricalinternal cylindricalworkpiece

Overview
The Servogrind® RSM 1500 NC is a conventional NC cylindrical grinder designed for long, heavy workpieces. It replaces hydraulic feed systems with servo-driven axes to improve dynamics, repeatability and serviceability while offering an optional internal grinding device and an intuitive touchscreen NC control.

Highlights

• NC touchscreen control with preset grinding cycles
• External and internal cylindrical grinding cycles
• Servo drives on both axes (hydraulic-free feed)
• Swivelling table and swivelling work spindle
• Comprehensive standard accessories (steady rest, 3-jaw chuck Ø200 mm, dresser, wheel balancer)

Machine bed

• Heavy rigid bed engineered for machining long, heavy parts
• Swivelling work table runs on precision-ground V-guides for excellent damping
• Wide load distribution to minimise tilting torque and maximise rigidity
• Robust tailstock for reliable between-centres clamping

Feed and drives

• Servo-conventional feed technology for smooth, vibration-free advances
• High-performance servo drives delivering CNC-like positioning accuracy
• Electronic stops and high-repeatability settings for precise travel limits
• Preloaded ball screws on all axes to reduce friction and breakaway torque
• Reduced heat generation for stable thermal conditions and lower wear
• Enclosed drives, spindles and measurement systems for low maintenance

Grinding headstock

• Grinding headstock on premium linear guides for maximum positioning accuracy
• Extensively supported grinding spindle for high precision in roughing and finishing
• Pivoting internal grinding unit with separate motor for internal operations

Work spindle drive

• Swivelling work spindle headstock with infinitely variable spindle speed
• Standard 3-jaw chuck Ø 200 mm with high concentricity included

Equipment

• Fully enclosed work area with large doors for safe access and easy loading
• Centralised controls and touchscreen HMI displaying machining parameters
• LED work lighting and automatic central lubrication
• Mobile electronic handwheel for fast setup and reduced downtime
• Standard steady rest for long workpieces; powerful coolant system and dressing/balancing tools included

NC control

• NC positioning control to combine roughing, finishing and spark-out in one cycle
• Individual grinding cycles programmable via touchscreen without programming skills
• HMI with simple menus for longitudinal and traverse cylindrical grinding and graphical guidance during data entry

Technical tables
Working area
Center height: 180 mm
Grinding diameter: 8 mm - 320 mm
With steady rest: 15 mm - 150 mm
Grinding length: 1.500 mm
Inside grinding diameter with rest: 35 mm - 100 mm
Inside grinding diameter without rest: 30 mm - 100 mm
Inside grinding depth: 125 mm
Workpiece weight between centers (max.): 150 kg
Table swivel range (max.): -2° / +9°
Wheel speeds: 45 m/s

Travels
Grinding head travel: 250 mm

Headstock
Working headstock swivel range: 90°
Working spindle taper: 4 MT
Chuck diameter: 200 mm
Work spindle speeds: 25 1/min - 500 1/min

Grinding headstock
Grinding spindle speed: 2.140 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: 30 mm

Drive capacity
Motor rating - grinding spindle: 4 kW
Motor rating inside grinding: 1.1 kW
Motor rating - headstock / coolant pump: 1.5 / 0.13 kW

Measures and weights
Grinding wheel dimensions: 400 mm x 50 mm x 203 mm
Grindstone dimensions, inside grinding (max.): 50 mm x 40 mm x 16 mm
Overall dimensions (L x W x H): 5.1 m x 2.2 m x 1.8 m
Weight: 3,700 kg

Technical specifications

• Center height: 180 mm
• Grinding diameter: 8 - 320 mm
• Grinding length: 1.500 mm
• Inside grinding diameter with rest: 35 - 100 mm
• Inside grinding diameter without rest: 30 - 100 mm
• Inside grinding depth: 125 mm
• Max. workpiece weight between centers: 150 kg
• Table swivel: -2° / +9°
• Wheel speed: 45 m/s
• Grinding head travel: 250 mm
• Working spindle taper: 4 MT; chuck Ø 200 mm; spindle speed 25 - 500 1/min
• Grinding spindle speed: 2.140 1/min; inside grinding spindle speed: 10.000 1/min
• Tailstock taper: 4 MT; quill stroke 30 mm
• Grinding spindle motor: 4 kW; inside grinding motor: 1.1 kW; headstock/coolant pump: 1.5 / 0.13 kW
• Wheel dimensions: 400 x 50 x 203 mm; internal wheel max. 50 x 40 x 16 mm
• Overall size: 5.1 m x 2.2 m x 1.8 m; Weight: 3,700 kg