Режущие и зажимные инструменты Hoffmann Group 2026 - страница 1003

GBP 57 JIS ISO B6339 7388-2 ​Quick-change tapping chuck for right-hand and left-hand rotation ■ Compact design, with flexible length compensation by compression and tension. ■ Adjustable lead-in pressures for different materials and taps. Application: ■ To produce threads that are true to gauge. ■ For right-hand and left-hand thread. ■ For NC machines and machining centres. Optional extras: See No. 335420 − 335660 for quick-change tapping collets. Pull studs (PS) No. 308600 − 308806. Pull stud wrenches No. 308820; 308835. Note: ■ Quick-change tapping heads in other shank types size M14 − M33 available on request. ■ Quick-change tapping heads not suitable for internal coolant supply. With BT holder (JIS B6339 formerly ISO 7388-2) ​ Tapping range M3-12 M6-20 M14-33 33 4665 33 4663 32P 32P 31M BT 40 eShop eShop – 33 4665 Quick-change tapping chuck BT 40 eShop eShop eShop 33 4670 BT 50 eShop eShop eShop Length compensation by compression mm 7.5 12.5 20 Length compensation by tension mm 7.5 12.5 20 External ⌀ D mm 38 55 78 ⌀ D1 mm 19 31 48 Dimension A (33 4663) mm 68 93 – Dimension A (33 4665) mm 60 100 162.5 Dimension A (33 4670) mm 62 83 141 ≤50 bar Quick-change tapping chuck for synchronised spindles ■ With minimum length adjustment (MLA), by means of a damping element. ■ Increases tool life of taps/thread formers by up to 300 %. ■ Internal coolant supply up to 50 bar. ■ Secure clamping for ER collets in quick-change tapping collets. ■ Radial run-out of shank taper to the tapping collet taper < 3 µm. Optional extras: See No. 308600 - 308806 for pull studs. Quick-change tapping collets and extensions, see No. 338120 – 338142. Tapping range M1-12 M6-20 33 8106 31M 31M Tapping chuck BT 30 eShop – MLA IC 50 bar D D1 33 8107 BT 40 eShop eShop Length compensation by compression mm 0.2 Length compensation by tension mm 1 33 8106 External ⌀ D mm 43 60 ⌀ D1 mm 20 32 A Dimension A (33 8106) mm 57 – Dimension A (33 8107) mm 61 82 suitable for ER size 11 / 16 25 ISO Form 7388-1 AD ≤50 bar ER synchro tapping chuck, one piece ■ With minimum length adjustment (MLA), by means of a damping element. ■ Internal coolant supply up to 50 bar. ■ Increases the tool life of taps/fluteless taps. Application: ■ On machining centres with synchronised spindles. ■ For compensating the difference in pitch between tap and synchronised spindle. ■ For compensating the pitch tolerances of taps. Optional extras: ER collets for machine taps No. 309399 and 309447. Pull studs No. 308760 – 308806. 33 for ER collet size 16 25 33 8193 Tapping chuck, ER synchro BT 40 eShop eShop 32P Tapping range M4 − M12 M6 – M20 Length compensation by compression mm 0.5 Length compensation by tension mm 0.5 External ⌀ D mm 34 45 ⌀ D1 mm 28 42 33 8193 Dimension A mm 85 100 1003