DUNKES – Straightening Job Shop

  • Many years of experience | Solution expertise
  • Consulting | Solution proposals | Straightening tests
  • Short response times | On-time delivery
  • Reliability

  Contract straightening

 

Workpieces can exhibit distortions as a result of heat treating, machining and sheet metal forming on round, flat and profile materials. The consequences are unnecessary material consumption and elaborate post-processing. DUNKES helps you to eliminate both: We remedy axle variances with manual, semi and fully automatic straightening plants in our straightening centre. At forces of up to 15,000 kN, we straighten pipes, shafts, lead screws, rods, round and flat material, profiles, sprockets, etc. Based on the significant demand from hardening operations and machinery builders, we provide this service for small and medium lot sizes.

 

The following video from our DUNKES-Youtube channel provides an overview of our straightening operation:

 

 

  DUNKES straightening operation

Based on significant demand from hardening operations and machinery builders, we provide our customers with the option to straighten small to medium lot sizes in our straightening centre on a contract basis.

 

Heat treated parts generally exhibit distortion after the heat treating process.
The parts must therefore be straightened after the heat treating process.
DUNKES will straighten your pipes, shafts, lead screws, rods, straight or flat material, profiles, sprockets, etc. – quickly, reliably, and on demand.

 

The following straightening plants are available for this purpose:

Mach.-
Type
Straightening
force



[kN]
Workpiece
max.
Workpiece
length
[mm]
max. diameter
- for solid material -
depending on
material and straightening support clearance
Comments
DR 05 5 150 up to approx. ø 10 mm manual straightening
DR 2 20 1000 up to approx. ø 25 mm manual straightening
HR 10 100 1000 up to approx. ø 45 mm manual straightening
HR 25 250 2.500 up to approx. ø 60 mm manual straightening
HR 100 1.000 2.500 up to approx. ø 95 mm manual straightening
HR 125 1.250 10.000 up to approx. ø 105 mm manual straightening
HR 1000 10.000 8.000 Solid material/ Profiles/ Sprockets
up to approx. ø 350 mm
pipes up to approx. ø 500 mm
manual straightening
piece weight up to 15 tonnes

  Overview of our machinery park

 

 

Dunkes straightening press HR 1000
Dunkes fully autom. straightening centre MRA 1.5
Example: Small components straightening on the DR 2
Example: Pipe straightening on the HR 25
Example: Sprocket straightening on the HR 100
 
Overview of products and services
  • Consulting and planning
  • Contract straightening
  • Wobble and radial riveting
  • Custom riveting
  • Press riveting
  • Prototyping flow pressing operations
  • Contract assembly
  • Machining
  • High-pressure pipe welding
Your contact for contract straightening

Mr. Oliver Kuchelmeister
lohnfertigungping@dunkespong.de
+49 7021 / 72 75 - 14
+49 7021 / 72 75 - 52