Erwin Junker Maschinenfabrik GmbH

Booth number 2.2D31

The JUNKER Group develop, produce and sell high-precision grinding machines for the metalworking industry, as well as filter systems for industrial air purification.

About us

JUNKER grinding machines

The impact made by JUNKER on the world of grinding technology since 1962 is practically unrivaled. With over 80 patents, many of them ground-breaking inventions, JUNKER is a complete supplier with an unbeaten track record in innovation.

From crankshafts to thread taps – JUNKER high-speed grinding machines are found wherever ultra-precise metalworking and customized grinding concepts are called for, particularly in the automotive and tool industry.

The in-depth dialog JUNKER enjoys with discerning customers is due to its unique problem-solving expertise, making the company the world market leader in CBN grinding and a pacemaker for the industry as a whole.

Erwin Junker Maschinenfabrik GmbH
Junkerstr. 2
77787 Nordrach

Phone: +49 7838 84-0
Fax: +49 7838 84-302

Contact person

Erwin Junker Grinding Technology a.s.
Prospekt Tolbukhina 17/65
150000 Yaroslavl

Phone: +7 4852 206121
Fax: +7 4852 206121

Products and Services

JUNKER grinding machines:

- Cylindrical grinding machines
- Non-cylindrical grinding machines
- Multi-station grinding center
- Centerless grinding machines
- Double-wheel surface grinding machines
- Cutting tool grinding machines
- Profile and cut-off grinding machines
- Lean Selection
JUCRANK - Non-cylindrical grinding machines

Precise in a single set-up

The JUCRANK non-cylindrical grinding machine accomplishes all grinding tasks on crankshafts. Maximum accuracy and quick cycle times are achieved through oscillation grinding in a single clamping set-up and through the productive machine concept. Ideal dimensional stability and high process reliability are ensured through in-process measurements, for example.

Further reading

JUMAT - Cylindrical grinding machines

Versatile in every regard

Quality, productivity, availability – the JUMAT external and internal cylindrical grinding machine leaves nothing to be desired. Various sizes and a large number of wheelhead versions offer unrivaled versatility. Paired with the concentrated expertise of JUNKER, each machine is specially matched to the customer‘s requirements.

Further reading

JUPITER - Centerless grinding machines

Productive all the way

JUPITER series centerless grinding machines offer substantial production benefits: The patented CNC height adjustment of the support blade minimizes tooling times, automatic adjustment of the grinding gap geometry optimizes the grinding process and the inclined bed guarantees maximum dimensional precision. Depending on the application, corundum, CBN or diamond is used as an abrasive.

Further reading

News & Innovations

Unbeatable cycle time with outstanding surface finish quality

A revolutionary method for the complete processing of worm shaft profiles

With the JUTWIST 2000 high-speed grinding machine, grinding worm shaft profiles from blank became cheaper, more accurate and faster. The new machine concept makes it possible to grind parts with up to six starts with a clamping length of up to 300 mm and a swing diameter of up to 50 mm – all in a single clamping set-up.

Substituting costly manufacturing processes

JUNKER is replacing today's common manufacturing processes, such as milling, spinning, rolling, with grinding. Grinding eliminates high tooling costs, increases flexibility to produce any thread forms, and provides a single solution for soft and hard material. In short, removing all disadvantages of the current common processes.

Which worm shaft profiles can the JUTWIST grind?

Right-hand and left-hand threads
Open and closed profiles, as well as profiles that are closed on one side
Shafts with up to six-start threads
Various materials
Variable angles of inclination

The future in worm shaft manufacturing
Producing worm shafts with the JUTWIST 2000 combines all the advantages of today’s common processes while eliminating all of their disadvantages.

JUTWIST offers:

  • Best cost per piece
  • Low tooling cost
  • High outputs
  • Extended tool life
  • Lasting flexibility for a variety of different workpieces
  • Multi-start threads
  • Powerful machining operations
Further reading

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