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JUNICOR

JUNICOR - Cylindrical grinding machines

An outstanding addition

The JUNICOR corundum grinding machine, an outstanding addition to the JUNKER Group portfolio, impresses with its precision and variable configuration options. Our new JUNICOR covers all conventional corundum grinding requirements. It is ideal for grinding workpieces of all sizes, offers maximum flexibility, and achieves outstanding grinding results.

The JUNICOR can be used in various applications and is suitable for various materials. The machine is ideally suited to grind smaller quantities and is therefore ideal for small and medium-sized production runs. Switching between different grinding operations tasks and adapting to new parts is easy and requires little set-up time. The JUNICOR is a cost-efficient solution and impresses with its high flexibility and economical production.

Highlights

  • Cost effectiveness thanks to modular design
  • Short delivery and through-put times for single machines and whole concepts
  • Guaranteed spare part availability
  • Optimized uptime due to reduced service and repair times
  • Future oriented investment thanks to flexibility of machine components that allow easy changeovers for second and third product cycle
  • Highest precision thanks to perfect thermal stability
  • Highest rigidity due to robust construction
  • Quick startup due to integrated peripherals
  • Pioneering operating and software concept
  • Operator and maintenance-friendly machine platform
  • Optimized machine layout that requires less floor space

Grinding process descriptions

The JUNICOR of the new JUNKER platform 3 impresses with precise diameter and face grinding on turbocharger shafts in angular plunge-cut grinding.

Precision grinding of Turbocharger shafts

Special solutions

Wheelhead

Wheelhead

The machine offers various configuration options and several individual table assemblies. The configurations range from standard to custom-made solutions and achieve the best efficiency and economic results. 

Wheelhead

Wheelhead

The wide range of grinding wheel head variants, with up to three grinding spindles, ensure maximum flexibility.

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Technical data: JUNICOR 3S

Grinding Length
max. 800 mm
Clamping Length
max. 800 mm
Component Weight
max. 250 kg
Grinding Wheel Diameter
508/610 mm
WxDxH mm (without peripherals)
3.250 x 2.600 x 2.200

Technical data: JUNICOR 3L

Grinding Length
max. 1.600 mm
Clamping Length
max. 1.600 mm
Component Weight
max. 250 kg
Grinding Wheel Diameter
508/610 mm
WxDxH mm (without peripherals)
4.050 x 2.600 x 2.200

Equipment and Options

MACHINE BED

The machine bed made of mineral cast provides impressive damping behavior and torsional rigidity. The temperature stability allows fluctuations in the ambient temperature to be compensated with a minimum of effort, ensuring a high level of dimensional stability throughout the whole day.

Clamping fixture

The patented 3-point mounting interface allows grinding and dressing wheels as well as work holdings to be mounted and centered on grinding spindles, workpiece spindles and tailstock sleeves in record time. Adjustment of the tailstock and, where applicable, the workhead take place using optionally using a chain wheel, a hydraulic cylinder or a CNC axis with rack and pinion drive. An airlift function simplifies position adjustment. Depending on the workpiece, in addition a wide range of clamping systems are also available

LONGITUDINAL POSITIONING

A touch probe measures the longitudinal position of the workpiece on a flat surface to compensate for unmachined part fluctuations. The measured values are automatically integrated in the grinding process by the control system.

STEADIES

As an option, self-centering three-point steadies ensure stable support. Tracking hydraulic jaws guarantee a balanced ratio of forces at all three support points, and with it a grinding process with repeat accuracy.

Workpieces

  • Turbocharger
  • Turbine shaft

Product Brochures JUNICOR

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