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Ultra Precision ER25 Coolant Sealing Collets

  • ER25C-3;ER25C-4

  • chongde


Ultra Precision ER25 Coolant Sealing Collets

Chongde ER Coolant Collets uses the difference of grooves to achieve the function of surrounding sealing and center thru coolant. ER thru coolant collets made to be used with thru-coolant tools. It allow greater water pressure through the collet. The maximum water pressure can be 30Mpa. The gripping range of spring collet is 1mm or 0.040”, commonly used in tool holding. The Non-standard hole size can be customized.


1. Material: JIS-SUJ2

2. Hardness: 46-50HRC;

3. All collets are precision ground for less than 0.0002" (0.005mm )of indicated runout;

4. The maximum water pressure can be 30Mpa;

5. Commonly used with thru-coolant tools in tool holding.

Our advantages

1. Integrated precision : 3μ/5μ;

2. Imported material: JIS-SUJ2

3. Hardness: 46-50HRC

4. Clean appearance and accuracy stable

5. -196℃ long cryogenic treatment and ultra long time thermal aging processing, reducing residual stresses and increasing the hardness and toughness.

Product Drawing and Size


D D1 L L1
Model No. Range Slot
ER25C 3≤d<6 0.1 25 26 34 6.66 16
6~16 0.5 20

Clamping Range

Order No. Type Range Order No. Model No.
CD010203.25030 ER25C-3 3-2.9 CD010203.25032 ER25C-1/8
CD010203.25040 ER25C-4 4-3.9 CD010203.25036 ER25C-9/64
CD010203.25050 ER25C-5 5-4.9 CD010203.25039 ER25C-5/32
CD010203.25060 ER25C-6 6-5.5 CD010203.25044 ER25C-11/64
CD010203.25065 ER25C-6.5 6.5-6 CD010203.25048 ER25C-3/16
CD010203.25070 ER25C-7 7-6.5 CD010203.25052 ER25C-13/64
CD010203.25075 ER25C-7.5 7.5-7 CD010203.25056 ER25C-7/32
CD010203.25080 ER25C-8 8-7.5 CD010203.25059 ER25C-15/64
CD010203.25085 ER25C-8.5 8.5-8 CD010203.25064 ER25C-1/4
CD010203.25090 ER25C-9 9-8.5 CD010203.25067 ER25C-17/64
CD010203.25095 ER25C-9.5 9.5-9 CD010203.25071 ER25C-9/32
CD010203.25100 ER25C-10 10-9.5 CD010203.25075 ER25C-19/64
CD010203.25105 ER25C-10.5 10.5-10 CD010203.25079 ER25C-5/16
CD010203.25110 ER25C-11 11-10.5 CD010203.25083 ER25C-21/64
CD010203.25115 ER25C-11.5 11.5-11 CD010203.25087 ER25C-11/32
CD010203.25120 ER25C-12 12-11.5 CD010203.25091 ER25C-23/64
CD010203.25125 ER25C-12.5 12.5-12 CD010203.25095 ER25C-3/8
CD010203.25130 ER25C-13 13-12.5 CD010203.25099 ER25C-25/64
CD010203.25135 ER25C-13.5 13.5-13 CD010203.25103 ER25C-13/32
CD010203.25140 ER25C-14 14-13.5 CD010203.25107 ER25C-27/64
CD010203.25145 ER25C-14.5 14.5-14 CD010203.25111 ER25C-7/16
CD010203.25150 ER25C-15 15-14.5 CD010203.25115 ER25C-29/64
CD010203.25155 ER25C-15.5 15.5-15 CD010203.25119 ER25C-15/32
CD010203.25160 ER25C-16 16-15.5 CD010203.25123 ER25C-31/64

CD010203.25127 ER25C-1/2

CD010203.25131 ER25C-33/64

CD010203.25135 ER25C-17/32

CD010203.25139 ER25C-35/64

CD010203.25143 ER25C-9/16

CD010203.25147 ER25C-37/64

CD010203.25151 ER25C-19/32

CD010203.25155 ER25C-39/64

CD010203.25159 ER25C-5/8

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