What is a Hydraulic Tool Holder?

A Hydraulic Tool Holder is an advanced clamping component that leverages the incompressibility of hydraulic fluid to securely grip cutting tools. Designed for precision milling, drilling, reaming, and high-speed machining, it eliminates runout and vibration issues common with traditional tool holders. With radial runout ≤0.002mm at 3×D and repeat positioning accuracy ≤0.001mm, it perfectly supports carbide, PCD, and PCBN tools for ultra-precision operations. Hydraulic tool holders ensure consistent quality when machining thin-walled, miniature, or complex parts, making them indispensable in aerospace, mold, 3C electronics, and medical device production.

 

 

What are the advantages of this product?

 

Zero-Gap Hydraulic Clamping for Extreme Precision
The hydraulic chamber evenly expands around the tool shank, eliminating traditional spring collet gaps. Uniform clamping distributes force evenly, prevents tool deformation, and ensures radial runout ≤0.002mm at 3×D. Surface finish can reach Ra0.1μm, ideal for mirror-finish machining. This feature makes the Hydraulic Tool Holder a perfect choice for ultra-precision machining tasks.

 

High Dynamic Balance for High-Speed Stability
Precision-machined one-piece design, free of slots or elastic components, achieves G2.5 dynamic balance @30,000rpm (optional G1.0 @45,000rpm). Lightweight and rigid construction minimizes vibration by up to 70%, maintaining stability even at ultra-high speeds.

 

Durable and Cost-Effective
Clamping sleeves made of wear-resistant alloy steel, vacuum-hardened to 62HRC, allow over 20,000 tool changes with <3% accuracy decay. No hydraulic oil replacement needed during normal use, reducing maintenance costs. Quick tool change in 10 seconds with a standard torque wrench, saving production time.

 

Wide Compatibility and Flexible Functionality
Supports BT30/BT40/BT50, HSK63A/HSK100A interfaces, clamping diameter φ3–φ32mm (customizable), and both straight-shank and composite-shank tools. Optional high-pressure internal coolant channels (≥25MPa) efficiently cool and evacuate chips for titanium, high-temp alloys, and other difficult-to-machine materials.

 

 

Technical Specifications

 

Parameter Type	Specification Range
Body Material	High-strength alloy steel (clamping sleeve: wear-resistant alloy steel)
Accuracy	Radial runout ≤0.002mm at 3×D, repeat positioning ≤0.001mm
Dynamic Balance	G2.5 @30,000rpm, optional G1.0 @45,000rpm
Clamping Diameter	φ3–φ32mm (customizable)
Spindle Interface	BT30/BT40/BT50, HSK63A/HSK100A, ISO30
Cooling	External, high-pressure internal coolant (≥25MPa)
Compatible Tools	Carbide mills/drills/reamers, PCD/PCBN ultra-hard tools
Operating Temperature	-10℃ to 120℃

 

Aerospace: Turbine blades, engine combustion chamber precision holes; zero-gap clamping of the Hydraulic Tool Holder ensures ±0.003mm tolerance, and high rigidity prevents tool chatter.

 

 

Typical Application Scenarios

Aerospace: Turbine blades, engine combustion chamber precision holes; zero-gap clamping of the Hydraulic Tool Holder ensures ±0.003mm tolerance, and high rigidity prevents tool chatter.

 

Precision Mold Manufacturing: Optical lens molds, semiconductor packaging mold cavities; micrometer-level accuracy allows Ra0.05μm surface finish without polishing.

 

3C Electronics: Micro-holes in smartphone chip slots, camera modules; stable high-speed performance reduces miniature tool breakage, achieving 99.9% dimensional consistency.

 

Medical Devices: Orthopedic screws, dental implants; uniform clamping prevents deformation, meeting ISO standards for implant safety.

 

 

Why Choose Wangdefu?

1. Over a decade of experience in CNC tooling and precision manufacturing.

 

2. Patented hydraulic clamping technology and multiple utility model patents.

 

3. German TUV certified production system ensuring international quality standards.

 

4. State-of-the-art equipment: Jinke 5-axis machining centers, Harding cylindrical grinders, Vollmer wire-cutting machines, Zoller tool setters, Zeiss CMM.

 

5. Customized solutions for your materials (metal, plastic, composite) and process requirements.

 

6. Full-service support: tool customization, programming, prototype production, mass production, and quality inspection.

 

 

Packaging & Delivery

Protective packaging ensures zero damage during transit.

 

Delivery from our China factory typically within 7–15 days depending on customization.

 

Supports expedited shipping for urgent production needs.

 

 

After-Sales & Support

Installation guides and video tutorials for correct clamping and operation.

 

Warranty: 12 months from delivery; free replacement for manufacturing defects.

 

Regular maintenance recommendations provided to ensure long service life.

 

 

FAQ

Q: Can this holder work with ultra-hard PCD or PCBN tools?
A: Yes, the Hydraulic Tool Holder is designed for carbide, PCD, and PCBN tools, maintaining micrometer-level clamping precision.

 

Q: Is it suitable for deep-hole or narrow-slot machining?
A: Absolutely. We offer extended or short-shank versions to prevent interference in tight spaces.

 

Q: How does it handle high-speed machining?
A: With G2.5 dynamic balance @30,000rpm and optional G1.0 @45,000rpm, it maintains stability even under ultra-high-speed cutting conditions.

 

Q: Can I customize clamping diameter or interface?
A: Yes, we provide tailor-made Hydraulic Tool Holder solutions for BT, HSK, and ISO spindles, with diameters and designs customized to your machining requirements.

 

Q: How long is the expected tool life?
A: Clamping sleeves withstand 20,000+ tool changes with <3% precision decay, ensuring long-term stable performance.

 

 

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