Home> News> The feature and advantages of ER series (i.e. BT/CAT/HSK/CBBT/ST/ISO/NBT/NBT/NMTB/NT/MTA/MTB)collet chuck
May 04, 2020

The feature and advantages of ER series (i.e. BT/CAT/HSK/CBBT/ST/ISO/NBT/NBT/NMTB/NT/MTA/MTB)collet chuck

Shandong Chongde Precision Machinery Co.,LTD is the manufacturer that specializing in producing high precision CNC machine tools and machine tool accessories. Our company have been in this industry for over 15 years, our product have really great precision and using life. We can serve 0.005mm and 0.008mm accuracy collets and 0.002mm precision BT/CAT/HSK/NMTB-ER/SK Tool Holders etc.



Features of ER series tool holder

1. Taper precision ≦AT3 and part of the standard size are tested by Diebold standard inspection tools which made in Germany;

2. Surface of the clamping inner hole is grinding by high speed Inner-aperture grinder, and inspect by standard pneumatic measurement instrument; the big end contact area rate is above 90%;

3. Shank thread is inspected with 4h level thread ring gauge, and the nut is inspected with 4H level thread plug gauge, the quality guaranteed;

4. Run out of the inside shank cone: ≦0.002(At the length 100L of the shank);

5. Coaxiality 5μ: Shank run out ≦0.002;

With collet ≦0.005, the comprehensive run-out of the shank is no more than 0.005.

6. Dynamic balance achieve: G2.5 20000-50000RPM.

bt

The advantages of ER series Collet Chuck.

1. With high speed, high Precision, high durability. Good surface finish ,and antirust nickel plating .Balanced G6.3 or G2.5 for choosing .with DIN6499 collet ,can be straight shank cutter clamping various sizes;

2. High heat resistance, high toughness, high wear-resistance, special use for high speed cutting of CNC milling machine, also can increase the smoothness, reduce the rubbing coefficient and improve the efficiency save more production time.

3. BT Tool Holders for mechanical spindle and cutting tool and other accessory tool connection. Is a simple, popular spindle shank connection standard, mainly BT30 BT40 BT50... Etc. Mold industry, and high-speed engraving machine, used more .At present the main traditional CNC Machine tool accessories standard Bt Tool Holder.

4. We can to figure to sample processing, and perfect after-sales service and technical support.

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