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KARGO

KARGO - Cylindrical grinding machines

Heavy shafts easily ground

Up to six tons and several yards long – grinding shafts of this size is a challenge that is tirelessly mastered by the grinding machines of the Kargo series. A powerful clamping device, hydrostatic guides and hydrostatically mounted grinding spindles guarantee the greatest possible precision.

Highlights

  • Precise grinding with corundum
  • Designed for heavy and long workpieces
  • Rugged machine bed with full-protection hood
  • CNC control system with user-friendly interface
  • Post-process measurement
  • Recording of error messages
  • Display of the maintenance intervals
  • Compliance with all safety regulations

Grinding process descriptions

Technical data: KARGO 10

Grinding Length
2.000/ 2.500/ 3.000/ 3.500/ (4.000) mm
Clamping Length
2.100/ 2.600/ 3.100/ 3.600/ (4.100) mm
Center Height
360 mm
Component Weight
1.000 kg
Swing Diameter
700 mm
Grinding Wheel Diameter
760 (915) (1067) x 304,8 mm
Grinding Wheel Motor Output
18 (22) kW
Grinding Wheel Width
100 (150) mm
Workpiece Spindle Speed
150 U/min
Workpiece Spindle Internal Morsetaper
ANSI 1:4
Tailstock Internal Morsetaper
Morse6/ ANSI 1:4
Tailstock Stocklength
60 mm
Tailstock Taper Correction
± 2 mm
Installed Total Input
57 (61) kW
Cnc Control System
Siemens / Fanuc
WxDxH mm (without peripherals)
5.150/ 5.650/ 6.150/ 6.650/ (7.150) x 4.038 x 2.357 mm
Weight
15.000/ 17.000/ 19.000/ 21.000/ (23.000) kg
Component Weight
1.000 kg

Wheelhead KARGO 10

  • OD1
    OD1

Technical data: KARGO 30

Grinding Length
2.000/ 2.500/ 3.000/ 3.500/ (4.000) mm
Clamping Length
2.100/ 2.600/ 3.100/ 3.600/ (4.100) mm
Center Height
360 (430) mm
Component Weight
3.000 kg
Swing Diameter
700 (850) mm
Grinding Wheel Diameter
760 (915) (1067) x 304,8 mm
Grinding Wheel Motor Output
22 (30) kW
Grinding Wheel Width
100 (150) mm
Workpiece Spindle Speed
110 U/min
Workpiece Spindle Internal Morsetaper
ANSI 1:4
Tailstock Internal Morsetaper
ANSI 1:4
Tailstock Stocklength
150 mm
Tailstock Taper Correction
± 2 mm
Installed Total Input
70 (85) kW
Cnc Control System
Siemens / Fanuc
WxDxH mm (without peripherals)
5.150/ 5.650/ 6.150/ 6.650/ (7.150) x 4.038 x 2.357 mm
Weight
17.000/ 20.000/ 23.000/ 26.000/ (29.000) kg
Component Weight
3.000 kg

Wheelhead KARGO 30

  • OD1
    OD1

Technical data: KARGO 60

Grinding Length
2.000/ 2.500/ 3.000/ 3.500/ (4.000) mm
Clamping Length
2.100/ 2.600/ 3.100/ 3.600/ (4.100) mm
Center Height
430 (510) mm
Component Weight
6.000 kg
Swing Diameter
850 (1.000) mm
Grinding Wheel Diameter
760 (915) (1067) x 304,8 mm
Grinding Wheel Motor Output
30 kW
Grinding Wheel Width
100 (150) mm
Workpiece Spindle Speed
90 U/min
Workpiece Spindle Internal Morsetaper
ANSI 1:4
Tailstock Internal Morsetaper
ANSI 1:4
Tailstock Stocklength
150 mm
Tailstock Taper Correction
± 2 mm
Installed Total Input
85 (95) kW
Cnc Control System
Siemens / Fanuc
WxDxH mm (without peripherals)
5.150/ 5.650/ 6.150/ 6.650/ (7.150) mm x 4.038 x 2.357 mm
Weight
25.000/ 28.000/ 30.000/ 33.000/ (36.000) kg
Component Weight
6.000 kg

Wheelhead KARGO 60

  • OD1
    OD1

Equipment and Options

MACHINE BED
Machine bed - gray cast
  • With gray cast iron design
  • High torsional rigidity and good damping behavior
  • Proven quality
CONTROL SYSTEM
Control System - KARGO
  • Choose from Fanuc or Siemens
  • KARGO software developed especially for the requirements of external cylindrical grinding
  • Easy programming, installation and operation of the machine thanks to standard ISO programming
  • Ergonomic machine setup through the machine control in a pivotable and movable control panel
WHEELHEAD
Wheelhead - KARGO
  • Insensitive to vibrations and low maintenance thanks to spindle mounted on hydrostatic bearings
  • Peripheral speed 45 m/s
  • Different wheelhead versions for straight plunge cut or inclined plunge cuts
  • Automatic compensation of grinding wheel diameter after dressing
  • Automatic balancing device (optional)
TAILSTOCK
Tailstock - FLEXA
  • With fixed, revolving or universal applicable center
  • Hydraulically controlled tailstock sleeve with adjustable axial pretension
  • Precision adjustment of taper +/- 0.15 mm
  • High-speed retooling with combined external and internal grinding due to CNC-controlled tailstock adjustment (optional)
MEASURING
Measuring FLEXA
  • 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
POSITIONING
Positioning FLEXA
  • 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
DRESSING UNIT
Dressing Unit FLEXA
  • Single-grain diamond or dressing fleece (standard)
  • Rotating dressing (optional):
  1. Diamond profile grinding wheel
  2. Diamond shape roller
HYDROSTATIC GUIDE
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
HYDROSTATIC BEARINGS
Hydrostatic Bearings
  • Use in radial and axial bearings of wheelheads and workheads
  • Perfect rotational movement and constant centering of shaft
  • Vibration-damping
WORKHEAD
Workhead - FELXA
  • With fixed, revolving or universal applicable center
  • Long service life due to spindle mounted in hydrostatic bearings (high-precision roller bearing optional)
  • Speed programmable in a range from 20 to 1,000 rpm
FIRE PROTECTION AND LTA AIR FILTERS
Fire protection and LTA air filters

In case of an fire, the machine interior is automatically hermetically sealed, suffocating a fire before it has a chance to spread. If required, extinguishers (CO² or water mist systems) and exhaust air purification systems can be additionally installed. A competent partner for fire protection and filtration solution solutions is LTA Lufttechnik GmbH, which also belongs to the JUNKER Group and which researches, develops and produces filtration systems for industrial air purification.

Workpieces

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

Product Brochures

KARGO.pdf
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Address:

Erwin Junker Maschinenfabrik GmbH
Headquarters
Junkerstraße 2
77787 Nordrach
Germany