BT ER COLLET CHUCK

CNC milling machine collet chuck BT ER TYPE tool holder,ER collet chucks handle a wide range of machining jobs,Simply choose the right size collet for the job, set tool depth, and tighten the collet nut and pull stud to the proper torque using a torque wrench.The pre-balance can reach G6.3 8,000 rpm, Dynamic balanced by Haimer machine G2.5 RPM25,000 is available.Our surface of roughness are maintained to Mirror Finish.ER16 and ER20 are Hex Nut, ER25-ER40 are UM nut.

 BT - ER TOOL HOLDER
1.Material: 20CrMnTi(After heat treatment, it has rigid hardness and toughness, better grinding quality, good flexibility and longer using life span)
2.Dynamic Balance: G2.5 20000rpm
3.HRC: 55-60°;Accuracy of deviation:below 5μ (4D length)
4.Please put the collet into the nut and then put them into the body together during using.
5.The tool holder is through-hole, which is better for water to get through and anti-vibrant.
6.The nut has preinstalled Dynamic balancing design, so it can be used for RPM10,000.