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NUMERIKA

NUMERIKA - Cylindrical grinding machines

First-Class Shaft Grinding

Versatile, rugged, long-life – the cylindrical grinding machines of the NUMERIKA series meet any requirements for the series production of a broad range of workpieces; in the largest version up to a length of 1.500 mm. A torsion-resistant machine bed, hydrostatic guides and grinding spindles with roller or hydrostatic bearings provide for perfect grinding results. External and internal cylindrical grinding from small to large batches.

Highlights

  • Precise grinding with corundum
  • External and internal grinding
  • High productivity through short cycle time
  • Flexibility when grinding workpiece families
  • Automatic loading and unloading systems adapted to customer requirements
  • High degree of automation for integration in production lines
  • In-process and/or post-process measurement
  • Rugged machine bed with full-protection hood
  • CNC control system with user-friendly interface

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Technical data: NUMERIKA GL 600

Grinding Length
600 mm
Clamping Length
800 mm
Center Height
140 mm
Component Weight
80 kg
Grinding Wheel Diameter
406 x 152 mm
Swing Diameter
275 mm
WxDxH mm (without peripherals)
2905 x 2045 x 2040
Weight
5.000 kg

Wheelhead NUMERIKA GL 600

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA GL 1200

Grinding Length
1200 mm
Clamping Length
1400 mm
Center Height
140 mm
Component Weight
120 kg
Grinding Wheel Diameter
406 x 152 mm
Swing Diameter
275 mm
WxDxH mm (without peripherals)
3745 x 2045 x 2040
Weight
6.000 kg

Wheelhead NUMERIKA GL 1200

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA G 800

Grinding Length
800 mm
Clamping Length
900 mm
Center Height
140 mm
Component Weight
120 kg
Grinding Wheel Diameter
508 x 203,2 mm
Swing Diameter
275 mm
WxDxH mm (without peripherals)
3730 x 1960 x 2000
Weight
6.500 kg

Wheelhead NUMERIKA G 800

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA G 800 Plus

Grinding Length
800 mm
Clamping Length
900 mm
Center Height
230 mm
Component Weight
120 kg
Grinding Wheel Diameter
610 x 203,2 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
3730 x 1960 x 2000
Weight
6.500 kg

Wheelhead NUMERIKA G 800 Plus

  • OD1
  • OD1
  • OD6

Technical data: NUMERIKA G 1500

Grinding Length
1.500 mm
Clamping Length
1.600 mm
Center Height
140 mm
Component Weight
180 kg
Grinding Wheel Diameter
508 x 203,2 mm
Swing Diameter
275 mm
WxDxH mm (without peripherals)
4430 x 1960 x 2000
Weight
8000 kg

Wheelhead NUMERIKA G 1500

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA G 2000

Grinding Length
2.000 mm
Clamping Length
2.100 mm
Center Height
140 mm
Component Weight
250 kg
Grinding Wheel Diameter
508 x 203,2 mm
Swing Diameter
275 mm
WxDxH mm (without peripherals)
5130 x 1960 x 2000
Weight
9000 kg

Wheelhead NUMERIKA G 2000

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA GH 500

Grinding Length
500 mm
Clamping Length
600 mm
Center Height
230 mm
Component Weight
125 kg
Grinding Wheel Diameter
760 (915) x 304,08 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
3660 x 3150 x 2425
Weight
11.000 kg

Wheelhead NUMERIKA GH 500

  • OD1
  • OD1

Technical data: NUMERIKA GH 1000

Grinding Length
1000 mm
Clamping Length
1200 mm
Center Height
230 mm
Component Weight
250 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
4160 x 3150 x 2425
Weight
13.000 kg

Wheelhead NUMERIKA GH 1000

  • OD1
  • OD1

Technical data: NUMERIKA GH 1500

Grinding Length
1500 mm
Clamping Length
1700 mm
Center Height
230 mm
Component Weight
250 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
4660 x 3150 x 2425
Weight
15.000 kg

Wheelhead NUMERIKA GH 1500

  • OD1
  • OD1

Technical data: NUMERIKA GH 2000

Grinding Length
2000 mm
Clamping Length
2200 mm
Center Height
230 mm
Component Weight
350 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
5160 x 3150 x 2425
Weight
17.000 kg

Wheelhead NUMERIKA GH 2000

  • OD1
  • OD1
  • UN1

Technical data: NUMERIKA GH 2500

Grinding Length
2500 mm
Clamping Length
2700 mm
Center Height
230 mm
Component Weight
350 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
5660 x 3150 x 2425
Weight
18.500 kg

Technical data: NUMERIKA GH 3000

Grinding Length
3000 mm
Clamping Length
3200 mm
Center Height
230 mm
Component Weight
350 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
6160 x 3150 x 2425
Weight
20.000 kg

Technical data: NUMERIKA GH 3500

Grinding Length
3500 mm
Clamping Length
3700 mm
Center Height
230 mm
Component Weight
350 kg
Grinding Wheel Diameter
760 (915) x 304,8 mm
Swing Diameter
450 mm
WxDxH mm (without peripherals)
6660 x 3150 x 2425
Weight
23.000 kg

Equipment and Options

CONTROL SYSTEM
  • Fanuc (standard) or Siemens (option)
  • Easy programming, installation and operation of the machine
  • Ergonomic machine setup through the machine control in a pivotable and movable control panel
Wheelhead
  • Insensitive to vibrations and low maintenance thanks to spindle mounted on hydrostatic bearings
  • Peripheral speed: 45 (63) m/s
  • Different wheelhead versions (fixed or can be swiveled) for straight or angular plunge cuts (0° – 30°) as well as extrernal and internal grinding
  • Automatic compensation of grinding wheel diameter after dressing
  • Grinding spindles with dynamic balancing system and acustical monitoring
WORKHEAD
  • Universal operation with either dead or live center
  • Rolling or hydrostatic bearings
  • Speed programmable in a range from 20 to 1,000 rpm
  • Maximum permissible workpiece weight: 80 – 250 kg
TAILSTOCK
  • Hydraulically controlled tailstock sleeve with adjustable axial pretension
  • Precision adjustment of taper ± 0.15 mm
  • CNC-controlled positioning of the tailstock (optional) for rapid machine retooling
MACHINE BED
  • With gray cast iron design
  • High torsional rigidity and good damping behavior
  • Proven quality
MEASURING
  • Measurement systems are adapted to the workpieces and customer specifications
  • In-process measurement device for measuring smooth or interrupted external diameters
  • Large diameter measuring range possible
DRESSING UNIT
  • Single-grain diamond or dressing fleece (standard)
  • Rotating dressing (optional):
  1. Diamond profile grinding wheel
  2. Diamond shape roller
POSITIONING
  • Automatic recording of reference surfaces on the clamped workpiece through bidirectional positioner
  • Recorded values are automatically integrated into the grinding process
  • Retractable integration on the wheelhead
  • Touch-trigger probe for precise workpiece detection
HYDROSTATIC BEARINGS
  • Use in radial and axial bearings of wheelheads and workheads
  • Perfect rotational movement and constant centering of shaft
  • Vibration-damping
HYDROSTATIC GUIDE
  • Use in the X and Z-axis, designed as compound slide rests
  • Uniform, jolt-free movement (no stick-slip effect)
  • Drive via servomotors with absolute encoders
  • High-precision positioning for precise grinding results

Workpieces

  • Axle arch
  • Axle
  • Starter shaft
  • Drive shaft
  • Countershaft
  • Bolt
  • Bushing
  • Excentric shaft
  • Gear shaft
  • CV joint
  • Piston pin
  • Piston ring
  • Compressor shaft
  • Motor shaft
  • Pump piston
  • Pump pinion
  • Pinion shaft
  • Pipe
  • Roller Bearings
  • Rotor
  • Worm wheel
  • Worm shaft
  • Spindle
  • Rod
  • Stator shaft
  • Stud
  • Tripods
  • Turbine shaft
  • Turbocharger
  • Cylinder
  • Rolling element
  • Shaft
  • Tool holder
  • Tool Blank
  • Gearwheel
  • Gear rod
  • Spigot
  • Cylinder rollers
  • Cardan joint

Product Brochures NUMERIKA

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