ER Collet: Elastic Tool Clamping with Wide Range and Quick Change

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ER Collet: Elastic Tool Holder with Wide Applications

A type of tool holder with an elastic collet structure, clamping tools by tightening nuts. It has a wide clamping range, quick tool change, and common specifications like ER11/ER16/ER20, suitable for holding small-diameter milling cutters and drills with ±0.01mm precision, widely used in small-to-medium CNC machining centers.
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Advantages of the product

High-Speed Stability

Balanced to G2.5 standards at 40,000rpm, ER collets minimize vibration in high-speed milling of aluminum alloys and composites. Suitable for aerospace impeller machining and PCB routing.

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As a threading component which accomplishes the locking function of ER collets, ER collet nuts also lock the associated collet in the spindle on a threaded mechanism interface. Featuring a hexagonal drive for wrench screwing, they are made from alloy steel which is heat-treated to 55 HRC, and also possess shoulders for correct axial placement. Along with these features, high-speed nuts also help with anti-vibration as they are balanced to G2.5 at 40,000rpm, reducing the chance of rattling. In addition, vibration preventing features such as serrated edges strengthen antifriction designs even more, which is essential to preserve tool precision during intense cutting.

Frequently Asked Questions

How quickly can ER collets change tools?

Nut-tightening allows tool swaps in <15 seconds, compatible with ATC systems for lights-out manufacturing and reducing setup times in high-mix production.

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Customer Reviews

Owen

Used in our technical school, these collets taught students about precision clamping. The labeled sizes and easy operation made them ideal for training future machinists on CNC basics.

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Wear-Resistant Construction

Wear-Resistant Construction

Made from spring steel (48-52HRC) with anti-corrosion coatings (Ni-P), they withstand repeated clamping cycles (≥100,000 times) in harsh workshop environments.
Industry Standard Compatibility

Industry Standard Compatibility

Fits BT, HSK, and CAT spindle interfaces, widely used in Asian and European machining centers. Meets ISO 26623 standards for collet performance and reliability.
Versatile Application Scenarios

Versatile Application Scenarios

Used in mold making for fine details, electronics for micro-components, and automotive for gear machining. Supports both roughing and finishing operations with quick tool changes.