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Manufacture and Factory of ER16 ER20 ER32 ER40 Collet Set Spring Collets Precision 0.005mm- 65 Mn
ER COLLETS Advantages:
1. Precision of er collet is within 0.005mm, we promise you.
2. Our er tool holder can ensure precision within 0.01mm, if you use our collet and tool holder, precision can be 0.005mm.
3. We have detection equipment, you can test them.
4. Produce er collet as SYIC standard.
5. We use steel from Beijing, with heat treatment.
6. Hardness of er collet is HRC47 to HRC49.
7. Surface smoothness is 0.6um.
8. Produce about 10,000 per month.
9. Can be OEM, use your brand, no extra money.






ER collet:
The standard ER collet is the most widely used clamping tool in the world.
Made from Alloy spring steel and fully hardened,the ER Collets are ideal for many machining applications including boring, milling, reaming, tapping and grinding.
1)Runout of our ER collet are within 0.005mm-0.015mmm
2)ER8, ER11, ER16, ER20, ER25, ER32, ER40 and ER50 collet
3)Made of high quality steel:65Mn
4)Packing:inner packing is plastic or paper box,the outer packing is cartons.
5)We normally supply two kinds of accuracy: first accuracy 0.008mm,second accuracy 0.015mm. The highest accuracy is 0.005mm.
| ER SERIES COLLETS WITH STANDARD DIN6499B | |||||||||
| Model | d H7 | D | D1 | D2 | L | L1 | L2 | L3 | Collapsible capacity |
| ER8 | ≥1.0-5.0 | 8 | 8.45 | 6.5 | 13.5 | 2.98 | 1.5 | 1.2 | 0.5 |
| ER11 | ≥1.0-7.0 | 11 | 11.5 | 9.5 | 18.0 | 3.8 | 2.5 | 2.0 | 0.5 |
| ER16 | ≥1.0-2.5 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4.0 | 2.7 | 0.5 |
| >2.5-10.0 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4.0 | 2.7 | 1.0 | |
| ER20 | ≥1.0-2.5 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 0.5 |
| >2.5-13.0 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 1.0 | |
| ER25 | ≥1.0-2.5 | 25 | 26 | 22.0 | 34.0 | 6.66 | 5.0 | 3.1 | 0.5 |
| >2.5-16.0 | 25 | 26 | 22.0 | 34.0 | 6.66 | 5.0 | 3.1 | 1.0 | |
| ER32 | ≥2.0-2.5 | 32 | 33 | 29.2 | 40.0 | 7.16 | 5.5 | 3.6 | 0.5 |
| >2.5-20.0 | 32 | 33 | 29.2 | 40.0 | 7.16 | 5.5 | 3.6 | 1.0 | |
| ER40 | ≥3.0-26.0 | 40 | 41 | 36.2 | 46.0 | 7.66 | 7.0 | 4.1 | 1.0 |
| ER50 | ≥6.0-10.0 | 50 | 52 | 46.0 | 60.0 | 12.6 | 8.5 | 5.5 | 1.0 |
| >10.0-34.0 | 50 | 52 | 46.0 | 60.0 | 12.6 | 8.5 | 5.5 | 2.0 | |








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