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Precision collet
Precision collet - 1
Precision collet - 2
Precision collet - 3

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Precision collet

In accordance with ISO 7388-1 (DIN 69871)

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Available in 11 versions

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Application

For clamping tools with straight shanks without loss of concentricity or clamping force up to shank tolerance h10, for economic machining of individual and series parts with extremely high-precision machining results. Ideal for HPC and HSC machining.

Execution

  • 30° trapezoidal thread with polished, extra-long double guide with special easy glide coating for low friction.
  • Clamping forces are evenly distributed across the entire cylindrical shell surface and perfect surfaces are achieved due to the optimal absorption of the radial forces.
  • Precise centring when tightening the clamping nut.
  • Suitable torque wrench attachments 23360 960-966 torque wrench is recommended, suitable collet chucks type ER no. 23323 617-658

Advantage

  • Resistant to fluctuations in temperature and fully suitable for drying processes and hard milling up to 200°C.
  • Reinforcement of the chuck body over the diameter of the clamping nut produces tremendous stability with an optimum interference contour.
  • Extremely low system concentricity of < 3 µm with the 2 µm ATORN UP collets. With Fahrion sealed collets 2 µm HPD to 80 bar for internal cooling (without sealing washer).
  • Completely enclosed in the chuck cone for optimum stability and even distribution of clamping forces.
  • Retention force is twice as high as with conventional collet chucks.

Notes

The previous standard DIN 69871-1 was replaced by ISO 7388-1.

Delivery

1x precision collet chuck SK40 (ISO 7388-1); incl. clamping nut