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IEP-D Ø 400-1600

Over 70 years of history have given us not only the expertise required to design better products, but also the vision to be the first in line when it comes to new technologies and solutions. Whatever your workholding needs, read through to find what you're looking for.
IEP-D Ø 400-1600

IEP-D Ø 400-1600

Inch serration

IEP-C Ø 400-80

Tongue and groove

  • High precision 6 jaw chuck 2+2+2
  • Closed center
  • Equalising mechanism lockable


  • Clamping of thin walled workpieces
  • Low radial deformation with 2+2+2 clamping
  • Suitable for horizontal and vertical machines
  • Adjustable to 6 jaw 2+2+2 or true 6 jaw clamping
  • Possibility to regulate the equalizing stroke from full for OP10 to very small for OP20
  • Constant gripping force with permanent lubrication
  • Centrifugal compensation for high spindle speed
  • proofline® chucks = fully sealed – low maintenance


  • Chuck with mounting bolts 1 set of soft top jaws
  • 1 equalizing stroke regulating key
  • Low maintenance and other advantages of the sealed design (chuck in the Proofline range)

New 6 jaws power chucks IEP with 2+2+2 clamping High accuracy machining of thin walled components became an important market. To answer to this specific need, SMW‑AUTOBLOK designed the new 6 jaw Equalizing power chuck type IEP with 2+2+2 clamping. The 2+2+2 Equalizing mechanism of the new IEP chucks allows the clamping of thin walled components guaranteeing to share the total gripping force on 6 points thus reducing the radial distortion. The important advantages of the IEP chucks are: - Manual setting of the Equalization stroke from maximum, for OP10, to the minimum for OP20; - Constant gripping force thanks to the sealed body and constant lubrication; - Centrifugal force compensation for high speeds; -Low maintenance and other advantages of the sealed design (chuck in the Proofline range); The main characteristic of the IEP chucks is the simultaneous self-centering clamping movement the 6 jaws, but equalized in couples, with all clamping directions converging to the center. The IEP chucks are very flexible and can be used for both OP10, using a large equalization stroke, or OP20 with a small equalization needed or no equalization. In OP20, the reduction of the equalization stroke improves the accuracy of the chuck. The IEP chucks are available in the following diameters: 500 – 630 – 800 – 1000 – 1250 – 1600 mm.

All our sales people have engineering backgrounds as well as in-depth technical experience and knowledge thanks to our branches' technical offices. Our staff are spread throughout the world, able to offer the local knowledge and understanding that customers require and that helps us maintain our commitment to quality service always.