Coolant Collets
Sealed ER/C collets for through-tool coolant applications where leakage control is required.
Technical Product Information
ER/C coolant collets use sealing geometry to support through-coolant machining. They are commonly specified for drilling, reaming and milling operations that require coolant delivery through the cutting tool.
The repository confirms ER/C catalogue rows for ER11 through ER40. Coolant pressure rating and seal material are not confirmed and should be reviewed for each buyer requirement.
Technical Specifications
| Specification | Current published information |
|---|---|
| Product category | Sealed coolant collets |
| Model or series | ER/C series |
| Applicable standard | DIN 6499 |
| Clamping range | 3.0-25.0 mm across listed ER/C catalogue rows |
| Collapse range | Fixed-diameter sealing collets; h9 tool-shank tolerance recommended |
| Available sizes | ER11, ER16, ER20, ER25, ER32, ER40 |
| Packaging | Standard export packaging; private-label packaging subject to confirmation |
| OEM availability | Available subject to drawing, quantity and engineering review |
| Private-label availability | Available subject to quantity and packaging review |
| Custom manufacturing availability | Available subject to drawing or sample review |
| Series dimensions | ER11C: 18.0 × 11.6 mm; ER16C: 27.5 × 17.1 mm; ER20C: 31.5 × 21.1 mm; ER25C: 34.0 × 26.1 mm; ER32C: 40.0 × 33.1 mm; ER40C: 46.0 × 41.1 mm |
| Listed bore sizes | ER11C 3-6 mm; ER16C 3-10 mm; ER20C 3-13 mm; ER25C 3-16 mm; ER32C 4-20 mm; ER40C 5-25 mm |
| Sealing engagement | Tool shank must engage at least the full internal bore length for sealing |
Applications
- Through-coolant drilling
- Reaming
- Milling with internal coolant tools
Compatible Equipment
- Through-coolant ER holders
- ER nuts compatible with coolant sealing requirements
Inspection and Quality Control
Dimensional inspection, runout verification, hardness testing and surface inspection can be agreed based on the order requirement. No unverified tolerance is presented as confirmed on this page.
Review quality-control processOEM and Private Label
OEM production, private-label packaging and custom manufacturing are available subject to drawing, quantity, marking and documentation review.
OEM and private-label optionsRelated Products
Related Technical Resources
Frequently Asked Questions
Are coolant pressure ratings confirmed?
No. Coolant pressure capability should be confirmed by Yuanchen against the exact collet and holder configuration.
Which ER/C sizes are listed?
The current catalogue data includes ER11, ER16, ER20, ER25, ER32 and ER40 ER/C families.
Send Coolant Collets Requirements
Include model, size, quantity, tolerance, packaging requirements and drawings where available.