Collet chuck ER25 DIN69871AD SK40, 2-16mm A=70mm incl. nut

Name: Collet chuck ER25 DIN69871AD SK40, 2-16mm A=70mm incl. nut
Brand: ATORN
SKU: 4312352507
Availability: OutOfStock

Brand: ATORN Product Code: 37754

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Collet chuck ER25 DIN69871AD SK40, 2-16mm A=70mm incl. nut

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a:70 mm

Balancing quality:G 2.5 at 25,000 rpm

Clamping nut type:HPC 25

Clamping range:2-16 mm

Clamping range Max.:16 mm

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Collet chuck ER25 DIN69871AD SK40, 2-16mm A=70mm incl. nut

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Description

True-running accuracy 3 um incl. clamping nut
Precision ER collet chuck

30° ground trapezoidal thread with special anti-friction coating
Up to twice the holding forces of conventional collet chucks are possible thanks to lower friction when tightening the nut and due to the collet being seated entirely inside the chuck cone.
Resistant to temperature fluctuations and fully suitable for dry processes and hard milling up to 200 °C.
Clamping forces are distributed evenly across the entire cylindrical surface, and optimum radial force absorption produces perfect surfaces
Excellent damping properties
Increasing the chuck body to the diameter of the clamping nut creates enormous stability without any protruding contours.
Extremely high concentricity and precision, 3 µm
Pre-balanced to G 2.5 at 22,000 rpm
Leak-proof up to 80 bar with radially sealed collets
For all GER collets
Supplied with clamping nut
Please order roller chuck key separately
Torque wrench recommended

DIN ISO 7388-1 / DIN 69871 AD, incl. clamping nut

Internal coolant supply

Specifications

Характеристики

70 mm

Balancing quality

G 2.5 at 25,000 rpm

Clamping nut type

HPC 25

Clamping range

2-16 mm

Clamping range Max.

16 mm

Clamping range Min.

2 mm

Collet type

ER 25 (430 E)

Concentricity tolerance

0.003 mm

Coolant supply

Internal axial

DIN

69871-1

External Ø

40 mm

Insertion depth

110 mm

Outer diameter

40 mm

Packaging unit

Shank

SK40

Shape

Span max.

16 mm

Span min.

2 mm

Standard constructional dimensions DIN

7388-1

Suitable for collet type

ER 25

Taper type

SK40

Tightening torque

85 N·m

Tightening torque max.

85 N·m

Tool holding device

SK 40

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