Hydraulic tool holder, also known as hydraulic chuck or hydraulic tool shank, is a high-precision clamping tool widely used in CNC machining centers, milling machines, lathes and multi-axis machine tools. Different from ER collet chucks and side lock holders, our hydraulic tool holder adopts hydraulic expansion clamping technology, which realizes uniform inner wall extrusion through internal hydraulic oil pressure to clamp cutting tools tightly.
Our factory produces full series CNC hydraulic tool holders covering BT, HSK, ISO, CAT, SK standard tapers, fully compatible with mainstream domestic and imported CNC equipment. Every hydraulic chuck undergoes strict dynamic balance and runout testing before delivery, meeting high-speed, high-precision metal cutting requirements for mold processing, aerospace parts, automotive components and precision hardware manufacturing.
Core Advantages of Our Hydraulic Tool Holder
Ultra-low Runout for Superior Machining Finish
Our hydraulic tool holder controls runout ≤0.003mm at 3xD, far better than ordinary clamping holders. Stable clamping eliminates tool vibration, effectively reduces tool wear and improves workpiece surface smoothness, perfect for fine milling, boring and finishing processes.
Powerful & Uniform Hydraulic Clamping Force
Internal closed hydraulic oil circuit provides 360° even clamping force without dead angle. No tool slipping during heavy cutting, deep cavity machining and high-speed rotation, greatly improving processing stability and dimensional consistency.
Easy & Fast Tool Change Operation
Tool loading and unloading only need a dedicated hydraulic wrench, no complicated heating equipment required. One-step clamping operation saves workshop setup time, reduces labor cost and improves overall machining efficiency.
Excellent Vibration Damping & Dynamic Balance
Integrated hydraulic buffer structure absorbs cutting vibration significantly. All hydraulic chucks are pre-balanced G2.5 at 25000rpm, suitable for high-speed spindle machining, extending cutter and spindle service life.
Complete Standard Series & Custom Support
We stock standard hydraulic tool holders: BT30/BT40/BT50, HSKA63/HSKA100, ISO30/ISO40, CAT40/CAT50 hydraulic chuck. Custom taper, clamping range, length hydraulic tool holders are acceptable per customer drawings.
Durable Anti-rust Alloy Material
Adopt high alloy structural steel with overall quenching and black oxide anti-corrosion treatment. Wear-resistant, oil-proof, rust-proof, stable performance under long-term continuous factory production.
Wide Application Scenarios of Hydraulic Chuck
Mold & Die precision machining
Aerospace aluminum alloy, titanium alloy cutting
Automotive engine, chassis component processing
Medical precision parts manufacturing
3C electronic hardware high-speed milling
General mechanical finishing & boring
Product Name: Hydraulic Tool Holder / Hydraulic Chuck / Hydraulic Shank
Taper Standard: BT, HSK, ISO, CAT, SK
Runout Accuracy: ≤0.003 mm (3xD)
Balance Grade: G2.5 / G6.3 for optional
Clamping Range: 3mm ~ 32mm
Max Spindle Speed: Up to 40,000 RPM
Material: Alloy Steel, Hardened HRC 48-52
Surface Treatment: Black Oxide Anti-rust Coating
Certification: ISO9001 Factory Inspection
FAQ Section
Q1: What is a hydraulic tool holder used for?
A hydraulic tool holder is a high-precision clamping device for CNC machine spindles, used to fix end mills, drills, boring cutters. It applies hydraulic pressure to clamp tools, ideal for high-precision finishing and high-speed CNC machining.
Q2: Hydraulic chuck vs ER collet chuck, which one is better?
Hydraulic tool holders have much lower runout and better vibration absorption than ER chucks, offering higher machining precision. ER holders are more cost-effective for rough cutting; hydraulic chucks are preferred for precision finish machining.
Q3: Can I customize special size hydraulic tool holders?
Yes, we support OEM & ODM custom hydraulic chuck, including special taper, extended length, non-standard clamping diameter hydraulic tool shanks according to your machine and processing demands.
Q4: How to maintain hydraulic tool holders for long service life?
Keep the hydraulic cavity clean, avoid metal debris entering the oil circuit; use matched hydraulic wrench only, do not over-tighten; store in dry environment to prevent rust, regularly check internal oil tightness.
If you are interested , please contact with Sophie
wechat/whatsapp: +8615288891922
email: ht08@ht-tools.net
