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.
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.
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.
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.
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
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.