584,879 active members*
4,965 visitors online*
Register for free
Login Register
Erwin Junker Maschinenfabrik - Banner
Erwin Junker Maschinenfabrik Products

World market leader in grinding with CBN

Erwin Junker Maschinenfabrik GmbH
Cam grinding machines

Lean Selection cam - Non-cylindrical grinding machine

500 mm
500 mm
15 kg
3340 x 2660 x 2325
12000 kg
Economical and precise camshaft grinding The Lean Selection cam is an economical and flexible machine concept for grinding camshafts in any lot size. The wheelhead can be fitted with up to two high-capacity grinding spindles, and the swiveling B-axis allows parts to be rough and finish-ground in a single clamping set-up. The Lean Selection cam CBN non-cylindrical grinding machine features userfriendly controls, minimal processing times and a high rate of availability. Highlights - Grinding with CBN grinding wheels - Circumferential speed of 140 m/s - Wheelhead with up to two high-capacity grinding spindles - Fast changeovers - High rate of availability - Minimal auxiliary times - Easy to operate - Wide range of services
Product details Homepage Product request
JUMAT 1S - Cylindrical grinding machines
JUMAT 1S - Cylindrical grinding machines
Universal cylindrical grinding machine
Erwin Junker Maschinenfabrik GmbH
Universal cylindrical grinding machines
Workspace
40 mm
1 kg
150 mm
 
Machine characteristics
10000 kg
 
Efficient grinding of ball screw nuts

Quality, cycle time, availability – the JUMAT external and internal cylindrical grinding machine leaves nothing to be desired.On ball screw nuts, the internal thread is pre-ground and finish-ground with a ceramic bonded mounted point in a clamping. Internal cylindrical grinding enables precise machining of the ball raceway.

Fast workpiece change times are achieved through the use of two workpiece spindles and non-productive times are reduced through cycle-time-neutral loading and unloading, including radial prealignment. Translated with DeepL
Product details Homepage Product request
JUMAT 1S - Cylindrical grinding machines
JUMAT 1S - Cylindrical grinding machines
High speed grinding machine
Erwin Junker Maschinenfabrik GmbH
High speed grinding machines
Workspace
250 mm
300 mm
 
Machine characteristics
18000 kg
 
mm
mm
kg
mm
Unbeatable cycle time for complete worm shaft grinding process

The high-speed grinding machine JUMAT 2000 grinds single-start and multi-start worm shaft profiles from blank. The electroplated profile grinding, which is used for pre-grinding, enables a high cutting capacity and is ideal to process both soft and hard materials. During the subsequent finish-grinding with corundum, the gears are finalized. Thanks to the geometry calculation of the single-tooth grinding wheel, the grinding medium is perfectly designed for the thread profile of the workpiece.

If the worm shaft has specific surface requirements, a second grinding spindle with an additional polishing wheel is used. This three-stage process with an integrated deburring station facilitates the production of finished worm shafts in a single clamping process.
Product details Homepage Product request