J41 Tapping Chuck

Product Structure and Working Principle

J41 is a split quick change torque protection tapping chuck, consisting of a chuck body and an independent quick change cylinder clamp, with two core mechanisms built in:

1. Axial pitch compensation mechanism

Standard expansion compensation ± 5mm, automatically matching the machine tool to provide thread pitch to the tap, avoiding thread disorder and tooth decay, suitable for blind hole and deep hole tapping.

2. Overload torque protection mechanism

The clamp has a built-in torque release structure, and the tail adjustment nut can freely set the release torque; When the tapping resistance exceeds the standard, it automatically slips, preventing the tap from breaking and significantly reducing tool wear

1.This device is consisted of a tap chuck and tap collets. The chuck has compensating device for thread pich. Collet chuck has overload torque protection device, which avoid tap breaking. In order to get the diteren release torques for different diameter taps, just adjust nuts. This device is most applicable to tap working on drill, lathe, boring machine, milling machine and CNC machine center and so on.

2. Material and applicable machine tools

Main material: 65Mn spring steel, quenched HRC44~48, wear-resistant and impact resistant

Suitable equipment: bench drill, vertical drill, lathe, milling machine, machining center, rocker drill, CNC tapping machine

Handle types available: Mohs cone handle MS2/MS3/MS4/MS5, R8, BT30/BT40/BT50 straight handle C-type

3.Comparison of GT/J42 tapping chuck differences

J41: Split quick change, independent cylinder clamp, no need to disassemble the main body when changing the tap, preferred for batch processing;

GT/J42: Integrated chuck, no separate quick change cylinder, with a complete disassembly and assembly of the changing tap, commonly used for simple bench drills.

4. Key points for use

Torque adjustment: Adjust the tail nut according to the hardness of the material - reduce the torque for aluminum parts and increase the torque for steel and stainless steel parts;

Expansion and contraction: standard axial compensation ± 5mm, suitable for ordinary thread processing;

Applicable scenarios: Batch threading, deep hole tapping, blind hole tapping, significantly reducing tap loss.

5.Selection Suggestions

Small bench drill/milling machine, M3-M12 thread: choose J4112-MS2/MS3

Small and medium-sized machining centers, M3-M16 universal: choose J4116-MS4/BT40

Heavy duty rocker drill, large thread M12-M24: choose J4124-MS4/MS5