BT Taper CNC tool holder ER collet chuck,Milling cutter shank is a kind of machine tool accessory used by Bai to hold milling cutter. It is a part of tool holder system in machining or CNC milling machine. The tool used in the CNC milling machine is connected with the spindle through the toolholder, which is clamped by the toolholder to transmit speed and torque. Turning the milling cutter can achieve the purpose of milling workpiece. The handle of NC milling cutter is made of 20CrMnTi titanium alloy, which is wear-resistant and durable. The tool holder has a hardness of 58-60 degrees and an accuracy of 0.002mm to 0.005mm. It is tightly clamped and has high stability. Features: good rigidity, high hardness, carbonitriding treatment, wear resistance and durability. It has high precision, good dynamic balance performance and strong stability.

Bt Er Collet Chuck Product information:

1. The taper accuracy of tool shank 7:24 is less than AT3 and part of the standard sizes have been inspected in the last time by standard checking fixtures manufactured in Germany.
2. The inner cone is tested by standard pneumometer. The contact area ratio of large end is more than 90%.
3. The inner cone runout of the tool handle body is less than 0.005.
4. The grade of handle threads and nut threads is 4H. The end is open and the end is closed.
5. Bt Collet Chuck Dynamic balance: G6.3 12000/18000 RPM G2.5 15000/20000 RPM can be made according to demand. It can also be customized according to customer demand.
6. Collet Chuck Material: 20CrMnTi.
7. Bt30 Tool Holder Hardness: HRC 56 degree-60 degree.
8. Bt Tool Holder Carburizing depth: > 0.8.
9. - 185C cryogenic treatment, 20 hours thermal aging.

10. Appearance finishing electroless nickel plating improves corrosion resistance, wear resistance and corrosion resistance, and achieves better anti-rust effect.