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ATORN precision collet chuck SK40 (ISO 7388-1) ER25 (1-16 mm) A=70 mm

ATORN precision collet chuck SK40 (ISO 7388-1) ER25 (1-16 mm) A=70 mm

1021505105 ATORN precision collet chuck SK40 (ISO 7388-1) ER25 (1-16 mm) A=70 mm
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Item no: 1021505 105 

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Available for immediate delivery

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 anti-friction coating for less friction
  • Clamping forces are evenly distributed across the entire cylindrical shell surface and radial forces are optimally absorbed to produce perfect surfaces
  • Precise centring when tightening the clamping nut

Advantage
  • Resistant to fluctuations in temperature and entirely suitable for drying processes and hard milling up to 200 °C
  • Reinforcement of the chuck body over the diameter of the clamping nut ensures outstanding stability with an optimum interference contour
  • Extremely low system concentricity of < 3 µm with the 2 µm ATORN UP collets. With Fahrion 2 µm HPD sealed collets 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 twice that of conventional collet chucks

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

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

Brand: ATORN
Tool holding device: SK 40
Collet type: ER 25 (430 E)
Clamping nut type: HPC 25
Min./max. clamping range: 2-16 mm
Projecting length (A): 70 mm
Outer diameter (D): 40 mm
Insertion depth (E): 110 mm
Max. tightening torque: 85 Nm
Coolant supply: Internal axial
Concentricity tolerance: 0,003 mm
Balancing quality: G 2.5 at 25,000 rpm
DIN: 69871-1

ATORN-No.: 22070005

EAN no.: 4050293353501

Product Datasheet
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