| Product introduction |
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1.Made of special elastic steel material |
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2.Power clamping ability, precise accutacy |
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3.Used for boring, milling,drlling, tapping,grinding and engraving operation etc. |
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| Model |
d H7 |
D |
D1 |
D2 |
L |
L1 |
L2 |
L3 |
Collapsible capacity |
| ER8 |
0.5-5.0 |
8 |
8.5 |
6.5 |
13.5 |
2.7 |
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 |
1.0-2.0 |
16 |
17 |
13.8 |
27.5 |
6.26 |
4.0 |
2.7 |
0.5 |
| >2.0-10.0 |
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 |
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 |
1.0 |
| ER32 |
2.0-2.5 |
32 |
33 |
29.2 |
40.0 |
7.16 |
5.5 |
3.6 |
0.5 |
| >3.5-20.0 |
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 |
64.0 |
60.0 |
12.6 |
8.5 |
5.5 |
1.0 |
| >10.0-34.0 |
2.0 | |
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Inspection of accuracy |
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| d |
L |
Run out |
| I |
II |
| 1.0-1.6 |
6 |
0.010 |
0.015 |
| >1.6-3.0 |
10 |
| >3.0-6.0 |
16 |
| >6.0-10.0 |
25 |
| >10.0-18.0 |
40 |
0.015 |
0.020 |
| >18.0-26.0 |
50 |
| >26.0-30.0 |
60 |
| >30.0-34.0 |
80 |
0.020 |
0.030 | |
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ER8 |
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ER11 |
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ER16 |
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ER20 |
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ER25 |
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ER32 |
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ER40 |
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ER50 |
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If no special requirement, we would supply to you according to IIgrade;if you require I grade,the price would be advanced |
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Mounting instruction for ER collet and nut. |
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1.Put the collet into the nut, turn the collet slightly, pust it into the nut at the offered direction evenly.when the offset flange into the undercut of the collet.
2.Fix the nut and the collet on the spindle rotate the nut until the collet is in pressing.Wipe the straight shank of cutter, and insertit into the pilot hole.Tighten the unt with a wrench till the cutter is clamped heavily(Caution:never tighten the nut without cutter in it for it will bread)
3.When changing the tool,Loosen the nut and it shall bring out the collet and the cutter together,and the draw the cutter out slighly the collet in the offered direction, it shall be ready for any change of the cutter |
