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Description
Technical data for the ER40 Ø30 mm collet
| Technical data | |
|---|---|
| Hole diameter d | 30-29 mm |
| Outside diameter D | 41 mm |
| Overall length L | 46 mm |
ER40 30 mm collet – special size for extremely large tools
The ER40 Ø30 mm collet is an oversized option in the ER40 clamping system, extending beyond the typical 3-26 mm range. Made from 65Mn spring steel with a hardness of 44-48 HRC, it securely clamps heavy cylindrical milling cutters, large milling heads, and specialized heavy-duty machining tools with a 30 mm shank.
Distinctive features of the ER40 collet Ø30 mm
- Extended ER40 system range – special size for clamping tools exceeding the standard 26 mm diameter
- Hardened 65Mn spring steel – a hardness of 44-48 HRC ensures resistance to extreme loads and many years of service
- Manufactured in accordance with DIN 6499 – compatible with ER40 holders and nuts from reputable manufacturers
- Clamping tolerance 30-29 mm – the 1 mm range provides flexibility in selecting tools with similar diameters
- Designed for special applications – ideal for gantry milling machines, heavy-duty boring machines, and machines used in the energy and shipbuilding industries
ER40 30 mm collet opens up new possibilities for ER40 system users, eliminating the need to switch to larger clamping systems. Chosen by heavy industrial plants, manufacturers of large molds, and specialized toolrooms. Choose the ER40 collet – a specialized solution for exceptional requirements.
Frequently asked questions
The typical diameter range of the ER40 system is 3-26 mm. The 30 mm collet is a special size that extends the system's capabilities to clamping large tools. The clamping tolerance remains standard at 1 mm.
Insert the collet into the nut at an angle, engage the groove with the eccentric projection, and press until it clicks into place. Then fit the nut onto the holder and tighten it to the recommended torque using the dedicated wrench.
The individual ER sizes differ in their external dimensions: ER11 measures 11.5×18 mm, ER16 measures 17×28 mm, ER20 measures 21×31 mm, ER25 measures 26×34 mm, ER32 measures 33×40 mm, and ER40 measures 41×46 mm. The size is printed on the body in accordance with DIN 6499.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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