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Development and production
of special machines and complete factories

 cold forming.

Development and production
Of special machines and complete factories

 cold forming in Bremen

Straightening machines for rotationally symmetrical parts from Bremen

Beispiel dynamisches Richten

Mac Panther produces straightening machines for rotationally symmetrical parts, especially drill bits. During straightening the parts are clamped in a rotating chuck. This ensures the repeatability of the straightening results. We offer two lines of machines, which differ according to the straightening process.

The dynamic straightening machines

The rotating workpiece is bent beyond the elastic limit and then brought to the desired runout by means of precise stress relief.

The dynamic process of our Straighteners

Laser monitoring before the straightening process checks whether straightening is required and afterwards to ascertain whether the result meets the specified standard. Parts which are beyond straightening are sorted out via a reject diverter.

The scope of application comprises rotationally symmetrical unhardened or heat-treated steel parts with a diameter of 3.5 – 35 mm and length of 110 – 700 mm. The achievable straightness of our dynamic straightening machines is in the range of 0.2 mm.

The benefits:

  • Very short cycle times; e.g. less than 5 sec/part
  • Low-manpower, simple operation
  • Short changeover times
  • Compact size
  • Double machine design enabling to work on two different sizes at the same time
  • Interlinking with other machines

The static straightening machines

Double straightening machine, dynamic straightening

The run-out is measured contact-free and the workpiece is then straightened under as low stress conditions as possible in a predetermined way.

The result is checked and if necessary another straightening cycle is run. Parts which are beyond straightening are sorted out via a reject diverter. The scope of application comprises hardened or unhardened steel parts with or without an external profile (e.g. a drill flute) and diameters from 3.5 – 35 mm and length of 100 – 700 mm. The achievable degree of straightness is in the range of 0.1 mm.

The benefits:

  • High accuracy
  • Gentle straightening
  • Low-manpower operation
  • Double machine concept enabling to straighten two different sizes at the same time
  • Contact-free measurement
  • Short changeover times
  • Compact size
  • Interlinking with other machines

If you have any questions about our straightening machines please contact our company in Bremen. We are your professionals for static and dynamic straightening processes.