Tool Holder: Precision Tool Clamping Solutions for CNC Machining

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Tool Holder: Types, Applications, and Selection Tips for Machining Tools

A key component connecting the machine tool spindle and cutting tools, used for transmitting torque and positioning accuracy. Common types include ER collets (elastic design, wide clamping range, ±0.01mm precision for light machining), hydraulic chucks (high rigidity, vibration resistance, suitable for high-speed cutting up to 50,000rpm), and milling chucks (high-precision radial runout ≤0.005mm for milling).
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Advantages of the product

Rapid Tool Change System

ER collets enable tool changes in <15 seconds via nut tightening, while automatic hydraulic chucks reduce setup times by 60% in CNC machining centers. Ideal for high-mix, low-volume production environments requiring frequent tool swaps.

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These holders apply hydraulic pressure (50-200bar) in a piston chamber to provide uniform clamping force around the tool shank securing concentricity of ≤0.003mm. They are self locking which allows pressure to be maintained during power outages which is important for hard materials such as Inconel that require interrupted cuts. These holders are popular in mold making and automotive powertrain machining where strong radial tool load of up to 8kN is supported while minimizing tool wear.

Frequently Asked Questions

Do tool holders meet industry standards?

Yes, they meet ISO 2768-1 and ASME B5.50 standards, ensuring repeatable accuracy in medical device production, optical component machining, and automotive powertrain fabrication.

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Customer Reviews

Eden

From light milling to heavy cutting, BLUESTAR’s tool holders impressed. Hydraulic chucks handled 8kN radial loads in titanium impeller machining, while ER collets held micro-drills with ±0.01mm accuracy for multi-product lines.

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angle head hsk tool holder milling arbor cat tool holder coolant tool holder
Rigid Anti-Vibration Design

Rigid Anti-Vibration Design

Hydraulic chucks use uniform clamping pressure (50-200bar) to eliminate tool slippage during interrupted cuts, reducing tool breakage by 30% in hard materials like Inconel. Suitable for deep-hole drilling and high-feed milling operations.
Thermal Stability

Thermal Stability

Heat-shrink tool holders maintain dimensional stability at temperatures up to 300°C, with thermal expansion coefficients ≤11×10⁻⁶/°C. Ensures consistent performance in prolonged high-speed machining of aerospace alloys.
Modular Tooling Solutions

Modular Tooling Solutions

Interchangeable collet sets (e.g., ER11-ER50) and adapter kits allow quick reconfiguration for different machine interfaces (BT, HSK, CAT). Reduces inventory costs by 40% in job shops handling diverse machining projects.