Welcome to Kumera Getriebe GmbH website.
Former C.u.W. Keller GmbH Co. & KG is now Kumera Getriebe GmbH, subsidiary of Kumera Power Transmissions Group since September 2019
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RANGE OF PRODUCTION

 
 
 
 
 
 
TURNING
Machining possibilities on our modern CNC lathes
CNC vertical turning and machining with driven tools
Diameter up to 1.600 mm
Height up to 6.000 mm
Maximum workpiece weight up to 216.000 kg
 
 
 
 
 
 
TURNING
Machining possibilities on our modern CNC lathes
CNC vertical turning and machining with driven tools
Diameter up to 3,500 mm
Height up to 1,600 mm
Maximum workpiece weight up to 25,000 kg
 
 
 
 
 
 
GEAR HOBBING
Milling method for external gearing
CNC gear hobbing
Diameters from 50 mm to 4,500 mm
Module from 6 mm to 48 mm
Maximum workpiece weight up to 40,000 kg
 
 
 
 
 
 
DRILLING AND MILLING (MACHINING)
Machining possibilities on our modern drilling and milling machines

CNC boring mill machining
Spindle diameter from 102 mm to 162 mm
Travel up to x = 7,000 mm up to y = 3,500 mm up to z = 1,500 mm up to w = 700 mm
Weight up to 100.000 kg
 
 
 
 
 
 
FREE - FORM MILLING
Gear hobbing of special profiles with 6-axis machining centre

CNC gear hobbing
Travel up to x = 1,600 mm up to y = 1,250 mm up to z = 1,100 mm
Workpiece weight up to 6,000 kg
 
 
 
 
 
 
INTERNAL GEARING
Gear shaping in straight and inclined design
Diameters from 400 mm to 3,500 mm
Module up to 26 mm
Workpiece weight up to 25,000 kg

CNC-controlled internal gears and grooves
Diameter up to 4.500 mm
Groove width from 8 mm to 125 mm
 
 
 
 
 
 
TOOTH FLANK PROFILE GRINDING
CNC profile grinding
internal gearing
Diameters from 50 mm to 4,150 mm
Module from 1 mm to 50 mm
Tooth width up to 2.000 mm
Workpiece weight up to 40,000 kg
 
 
 
 
 
 
TOOTH FLANK PROFILE GRINDING
CNC profile grinding
internal gearing
Diameters from 250 mm to 3,700 mm
Module from 1 mm to 26 mm
Tooth width up to 500 mm
Workpiece weight up to 40,000 kg
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CONSISTENT QUALITY IS GUARANTEED

The certification of our quality system according to DIN EN ISO 9001:2008 is testimony to our dedication to quality that guides us in our daily work. Together with independent standardization organizations, we ensure strict conformity to all relevant quality standards. We offer certified service according to SCC**:2011. As a member of the German Research Association for Power Transmission Engineering (FVA), we are heavily involved in R&D and maintain close contacts with various universities. We continuously upgrade our production equipment as well as the skills of our workers.