ATORN - ATORN precision collet chuck SK40 (ISO 7388-1) ER32 (2-20 mm) A=100 mm

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 32 (470 E)
Clamping nut type: HPC 32
Min./max. clamping range: 2-20 mm
Projecting length (A): 100 mm
Outer diameter (D): 50 mm
Insertion depth (E): 114 mm
Max. tightening torque: 140 Nm
Coolant supply: Internal axial
Concentricity tolerance: 0,003 mm
Balancing quality: G 2.5 at 25,000 rpm
DIN: 69871-1

ATORN precision collet chuck SK40 (ISO 7388-1) ER32 (2-20 mm) A=100 mm

ATORN precision collet chuck SK40 (ISO 7388-1) ER32 (2-20 mm) A=100 mm

Description

Technical data

More details

Versions

No workshop should be without it:

Pneumatic micro die grinder 9032 M air consumption 75 l/min length 132 mm

ATORN twist drill bit set STEP DRILL type N HSS vaporised 1-10 mm 0.5 in box

ATORN countersink set 90° HSS, extremely unequal pitch 6.3-20.5 mm

Wire-stripping pliers PreciStrip16 type 12 52 195

Multiclean cleaning cloth roll 1000 pcs 34x37 cm 2 ply blue perforated absorbent

ATORN twist drill bit set STEP DRILL type N HSSE purple 1-10.5 mm 0.5 and CHD

ATORN twist drill bit set STEP DRILL type N HSS TiN head 1-13 mm 0.5 in box

Cs. + cs. deburring tool set 6 pcs 90° HSS/TiN 6.3-20.5 mm in plastic box

LOCTITE 243 threadlocker 50 g

Measuring cup set 3 pcs 0.5 l, 1.0 l, 2.0 l, transparent, coloured/raised scale

ATORN A-Shield 4 cut protection glove, size 9

Pneumatic special oil 100 ml silicone-free with locking cap

ATORN twist drill bit set STEP DRILL type N HSS vaporised 1-10.5 mm 0.5 and CHD

Lamella flap disc Z SG POWER STEELOX, dia. 125 mm, alumina zirconia, 40 grit

ATORN A-Mech 3 assembly glove, size 9

Set of flat hand engineer's files with handle, 5 pieces, L=200mm, German cut 2

Lamella flap disc LSZ-F Vision zirconia alumina grain 60 dia. 125 mm

TX® screwdriver set 9 pieces T10-50

Safety goggles MAX C4 lens clear

ATORN try square stainless 150 x 100 mm in line with DIN 875 precision 1

ATORN cross-peen hammer 1,000 g, hickory handle, nylon handle protect. sleeve

ATORN wooden folding rule, white 2 m EC class III, with angle scale

ATORN corundum abrasive fabric sheets (AO) G100 230 x 280 mm

Spiralbohrer-Satz Sprint Master 19tlg. DIN 338 HSS Ø 1,0-10,0 mm in Kassette

ATORN twist drill bit set STEP DRILL type N HSS TiN head 1-10 mm 0.5 in box

Thread limit plug gauge for standard ISO thread DIN 2280 nom. dia. M 6 6H

ATORN twist drill bit set STEP DRILL type N HSS vaporised 1-13 mm 0.5 in box

ATORN twist drill bit set N HSS-TiN head DIN 338 1.0-10.0 mm in assortment case

ATORN ear defenders, 33 dB

Long hexagon ball head pin wrench set 9 pcs in clip AF 1.5/2/2.5/3/4/5/6/8/10

Pliers set, 3 pcs comb. pliers, side cutters, high-tech water pump pliers

ATORN twist drill bit set STEP DRILL type N HSS vaporised 1-13 mm 0.5 and CHD

ATORN HSSE machine tap set M3-12 HSSE GL

ATORN A-View 1 safety glasses

ATORN countersink set, 90°, HSS, extremely unequal pitch 6.3-20.5mm, 3-flat shnk

ATORN flat square, stainless 150 x 100 mm in line with DIN 875 precision 1

ATORN NC machine reamer set, 3.0-12.0 mm, H7, HSSE

Free-hand cutting disc, straight, universal line PSF STEELOX grit 60 125x1.0 mm

ATORN corundum abrasive fabric roll (AO) in tear-off box G180 40 mm x 50 m

ATORN A-Mech 4 assembly glove, size 9

ATORN analogue scriber 600 mm with fine adjustment

ATORN reusable corded ear plugs

3D art. meas. stand with central clamping and micro fine adj., height 390 mm

KNIPEX precision circlip pliers set, 8 pieces in box

Metal saw bow for 300 mm saw blade length

Caramba high-performance PTFE 500 ml spray can

Disposable safety knife SECUMAX 150

ATORN A-View 2 safety glasses

ATORN A-View 3 safety glasses

ATORN A-View 4 safety glasses

ATORN ear defenders, 37 dB

ATORN LED magnifying lamp, 5 dioptres, 2-stage segment switching, 2.25x

ATORN twist drill bit set STEP DRILL type N HSSE purple 1-13 mm 0.5 in box

ATORN cross-peen hammer 1,000 g with 3-component handle

T-handle 416 RA T-handle Rapidaptor

ATORN twist drill bit set STEP DRILL type N HSS TiN head 1-13 mm 0.5 and CHD

ATORN centre drill set HSSE TiN form A, D=1-1.6-2-2.5-3.15-4-5

ATORN hexagon screwdriver set, ball head set, 5 pieces, 3–8 mm

ATORN A-Mech 2 assembly glove, size 9

Cs. + cs. deburring tool set 6 pcs 90° HSS dia. 6.3-20.5 mm in plastic box

Pliers set, 3 pcs Combination pliers, snipe nose pliers, side cutters

ATORN TX screwdriver set, 5 pcs, TX 10, 15, 20, 25, 30

ATORN vernier calipers IP67 electr. 150 mm depth gauge flat

ATORN ear plug dispenser

Pocket tape measure 411 Vario EG I tape width 13 mm length 3 m

ATORN twist drill bit set N HSS TiN head DIN 338 1.0-13.0 mm 0.5 in box

WERA torque screwdriver T 6 set to 0.6 Nm, fixed blade

ATORN ret. ring pliers set, 8 pcs A1,A2,A11,A21,J1,J2,J11,J21 in roll-up pouch

ATORN hexagonal Allen key set, 9 pieces, 1.5–10 mm, ball head, colourful

Safety goggles MAX A1 lens clear

ATORN countersink set, 60°, HSS, extremely unequal pitch 6.3-20.5 mm

Cs. + cs. deburring tool set 6 pcs 90° HSS-E dia. 6.3-20.5 mm in metal box

ATORN countersink set, 90°, unequal spiral pitch 6.3-25.0 mm, 3-flat shank