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Tool clamp \ Tool chucks ISO 7388-2 BT40/50

ER collet chuck, mini slim version ( ISO 7388-2 )
ISO 7388-2

BT Form G 2,5 ISO G
40 JD/JF IK 25000 rpm 7388-2
Execution: Delivery: D
 ER mini nut fi nely balanced (G2.5 / 25,000 rpm) including high-speed ER mini nut

 with Balluff chip hole Notes: BT
 all tapers and tolerances are precision-ground ER mini type clamping nut ref. no. 23303116-125 A
former standard JIS B 6339 MAS BT has been
replaced by ISO 7388-2.

Tool holding device Collet type min./max. d A (mm) D (mm) G 23297...
Ident. No.
BT 40 - 0.5-7 mm 70 16 M6 x 1 021
BT 40 - 0.5-7 mm 100 16 M6 x 1 022
BT 40 - 0.5-7 mm 160 16 M6 x 1 023
BT 40 ER 16 0.5-10 mm 70 22 M10 x 1 024
BT 40 ER 16 0.5-10 mm 100 22 M10 x 1 025
BT 40 ER 16 0.5-10 mm 120 22 M10 x 1 026
BT 40 ER 16 0.5-10 mm 160 22 M10 x 1 027
BT 40 ER 20 1-13 mm 120 28 M10 x 1 028
BT 40 ER 20 1-13 mm 160 28 M10 x 1 029
BT 40 ER 25 1-16 mm 70 35 M18 x 1 030
BT 40 ER 25 1-16 mm 100 35 M18 x 1 031
BT 40 ER 25 1-16 mm 120 35 M18 x 1 032
BT 40 ER 25 1-16 mm 160 35 M18 x 1 033
Prod. Gr. 295

Power chucks ( ISO 7388-2 )

L2
Form G 6,3 ISO
JD IK 15000 rpm 7388-2
Application:  fl exible use thanks to intermediate bushes, no.
for clamping tools with straight shank, widely 23336 d D
projecting cutting tools or extensions, and straight
shanks in accordance with DIN1835A and B. Advantage:
 for high cutting depths and in turn higher material BT
Execution: removal rates A
 optimum concentricity thanks to one-piece basic  ideal for high feed rates
body at 2.5 x D ≤ 5 µm
 maximum clamping force and stability due to Delivery:
tool chuck with key
clamping with roller clamp nut with needle roller
bearing Notes:
 maintenance-free technology the previous standard JIS B 6339 MAS BT was
 suitable for internal coolant supply through the tool replaced by ISO 7388-2.
up to 80 bar
Tool holding d (mm) Min./max. A (mm) D (mm) L2 (mm) 23362...
device clamping Ø Ident. No.
BT 40 20 3-20 mm 80 54 70 111
BT 40 32 3-32 mm 90 70 100 112
BT 50 20 3-20 mm 105 54 70 113
BT 50 32 3-32 mm 105 70 100 114
Prod. Gr. 295

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com
Availability subject to country specific rules and regulations. 348

0752_EN_2018_KERN[21849928]-m.indd 758 12/17/2018 3:34:28 PM