Ultra‑high clamping concentricity
Uniform hydraulic clamping force, no workpiece deformation
Fast tool change, simple operation
Compact structure, good rigidity
Low vibration during high‑speed machining
Compatible with standard machine tool spindles
Excellent run‑out accuracy ensures consistent machining quality
Even hydraulic pressure protects delicate workpieces/tools
Reduces tool‑change downtime, improves production efficiency
Long service life, less wear compared with spring collets
Stable performance for mass‑production processing
Easy maintenance
Clamping run‑out accuracy
Maximum & minimum clamping range
Spindle interface compatibility
Suitability for high‑speed cutting
Oil leakage risk
Wear life & replacement cost
Cooling‑fluid compatibility
Media Contact:Alisa-Export Manager
Name: Alisa
Title: Export Manager
Phone/Whatapp/Wechat: +86‑15288891522
Email: ht06@ht-tools.net
alisa@httools.com
Product Name: High Precision Hydraulic Collet
Clamping principle: Hydraulic expansion clamping
Material: High‑grade alloy steel, hardened & precision ground
Hardness: HRC 56‑60
Clamping range: Please refer to corresponding model spec
Applicable spindle: BT / HSK / CAT optional
Application: Milling, drilling, reaming, fine finishing
Installation: Direct spindle mounting
Package: Shock‑proof foam + hard carton
| Order No. | B | L | Clamping Nut |
| S/ER11 | 17 | 110 | ER11-A ER11-T1 |
| S/ER16 | 25 | 120 | ER16-A ER16-T1 |
| S/ER20 | 30 | 130 | ER20-A ER20-T1 |
| Order No. | B | L | Clamping Nut |
| S/ER25-S | 37 | 210 | ER25-B ER25-T2 |
| S/ER32-S | 45 | 250 | ER32-B ER32-T2 |
| S/ER40-S | 58 | 290 | ER40-B ER40-T2 |
| S/ER50-S | 72 | 350 | ER50-B ER50-T2 |
| Order No. | L | Size | Clamping Nut |
| S/ER25 | 168 | 38-42 | ER25-B ER25-T2 |
| S/ER32 | 190 | 45-52 | ER32-B ER32-T2 |
| S/ER40 | 210 | 55-63 | ER40-B ER40-T2 |
| S/ER50 | 240 | 78-85 | ER50-B ER50-T2 |
| Order No. | B | L | Clamping Nut |
| S/ER8M | 7.5 | 70 | ER8-M |
| S/ER11M | 11 | 90 | ER11-M |
| S/ER16M | 15 | 110 | ER16-M |
| S/ER20M | 19.5 | 120 | ER20-M |
| S/ER25M | 25 | 130 | ER25-M |
Labor-saving design: Leverage structure for easy tightening & loosening of ER nuts, easy one-hand operation.
Wide compatibility: Fits all standard ER tool holders for universal workshop use.
High durability: Forged alloy steel, crack-proof and anti-slip after long-term repeated use.
Perfect bite with nuts: No slipping during operation, avoid scratches on lock nuts.
Torque wrench optional: Precisely control clamping force to prevent collet damage and accuracy loss caused by over-tightening.
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Contact Us
Tel: +86 534 425 1888
Mob/WhatsApp/Wechat: +86 137 9138 1619
E-mail: jacksun@ht-tools.net
Add.:East Area of Economic Development Area, Pingyuan County, Shandong Province. China 253100
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