SwissChuck AG
OVEKAV

OVEKAV

Reactable compensating chucks

"Complete machining in one clamping operation"

The clamping systems for grinding machines are designed for shaft-type workpieces between centers. These main chucks consist of a two-part base unit design with a center point and a displaceable compensating jaw chuck. The workpieces are held between centers and clamped, with compensation, by the extended jaw chuck. In this position, The workpieces are then ground in this position. When open, the chuck can be moved back against the spindle by up to 50 mm. This movement releases the previous clamping point, which can also be ground. Here, the workpiece drive is realized either by frictional engagement between the center point and the workpiece or by a driver which can engage the workpiece. With these clamping systems, workpieces can thus be completely finished-ground in one clamping operation.

OVEKAV
Technical data

4OVEKAV 145-12


TypeItemReactable Stroke
(mm)
Number of JawsStroke per Jaw
(mm)
Clamping Force
max.(kN)
Weight
(kg)
Speed max.
(1/min)
Outer-ø
(mm)
4OVEKAV 145-12SX10020531241.52012500145

 

3OVEKAV 180-35


 TypeItemReactable Stroke
(mm)
Number of JawsStroke radial
(mm)
Clamping Force
max.(kN)
Weight
(kg)
Speed max.
(1/min)
Outer-ø
(mm)
1*3OVEKAV 180-35SX10048433532.520283500180
2*3OVEKAV 180-35SX10049103532.520293500 (5000**)180
3*3OVEKAV 180-35SX10238793532.520293500180

4OVEKAV 220 / 270


TypeItemReactable Stroke
(mm)
Number of JawsStroke per Jaw
(mm)
Clamping Force
max.(kN)
Weight
(kg)
Speed max.
(1/min)
Outer-ø
(mm)
4OVEKAV 270-30SX100902230425060500270
4OVEKAV 220-40SX100978740423548500220
4OVEKAV 220-45SX102261045423545500220

6OVARZV 448-50


TypeItemReactable Stroke
(mm)
Number of JawsStroke per Jaw
(mm)
Clamping Force
max.(kN)
Weight
(kg)
Speed max.
(1/min)
Outer-ø
(mm)
6OVARZV 448-50SX1020481bis 1006588 / (125)326400270

Application: large workpieces

  • machining between centers
  • Complete processing of the external geometry
  • Suitable for large workpieces
  • Clamping diameter up to 300 mm

Functions & Fields of Application

  • Hydraulically actuated compensating chuck for clamping between centers
  • Displaceable chuck
  • 2-, 3-, 4- and 6-jaw versions in varied sizes
  • In the main, designed for grinding machines
  • Special versions for combined operations of grinding and hard-turning operations
     

Advantages

  • Hydraulic compensation
  • Patented oil circulating lubrication
  • Maintenance-free
  • The axial displacement allows the grinding of the initial clamping position
  • Length of displacement up to 100 mm
     

With patented circulating lubrication!

The hydraulically actuated chuck series OVEKAV is equipped with the patented EP1 190 815 circulation lubrication. All internal chuck components are actively lubricated during each clamping process. With virtually maintenance-free chucks, this results in minimal lifecycle costs. Downtimes in production due to malfunctions of the clamping system are eliminated.

Anwendungsbeispiele

4 OVEKAV 145-12 So

Example: small camshaft

  • Grinding of the cam geometry and all outside diameters
  • Driving of the workpiece during grinding utilizing a frictional connection between the center point and the workpiece

3 OVEKAV 180-35 So

Example: CTV gear shaft

  • Grinding of the complete outside contour
  • Integrated face driver for driving the workpiece while the compensating chuck is in a retracted position

4 OVEKAV 220-40 So

Example: Automotive crankshaft

  • Grinding of crankpins and main bearing 
  • The counter spindle is mostly equipped for alternating clamping during the grinding of the crankshaft end diameters

6 OVARZV 448-50 So

Example: Large crankshaft

  • Grinding of crankpins and main bearing 
  • When grinding the crankshaft end diameter with a retracted chuck, the opposite side remains clamped and drives the workpiece
  • Reversing of the clamping situation for the grinding of the opposite end diameter of the crankshaft
SAP for the KCHP

SAP for the KCHP

SAP Clamping ring for grinding between centers

[Translate to English:] OVEKA Präzisions-Ausgleichsfutter

OVEKA

Precision compensating chuck for demanding shaft-type workpieces