HSK Shrink Chuck | Thermal Shrink Tool Holder for High‑Speed Machining

Product Features

Q1: What equipment do I need for tool installation?

A: A thermal shrink machine is required for tool heating & clamping.

Q2: Which HSK standards are available?

A: HSK‑A and HSK‑F series, please select correct size for your spindle.

Q3: What is its concentricity performance?

A: Ultra‑low run‑out, suitable for high‑precision high‑speed cutting.

Q4: Can it replace ER collet chucks for heavy cutting?

A: Great for finishing & semi‑finishing; not recommended for heavy roughing.

Q5: How to maintain the shrink chuck?

A: Keep inner bore clean; avoid over‑heating; inspect bore for wear regularly.

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DIN69896/HSK Shrink Chuck

Selling Points of Shrink Fit Tool Holders

Radial runout ≤0.002~0.003mm at 4D position, far superior to ER holders (0.01~0.02mm), eliminating cumulative errors caused by collets and lock nuts.
Uniform 360° clamping eliminates tool deflection, greatly improving workpiece surface finish and removing extra polishing processes.
Stable repetitive clamping accuracy independent of operator technique, ensuring consistent dimensional tolerance for mass production.
Sales pitch: Micron-level rotational precision, ideal for high-precision machining of molds, 3C products and medical devices.

2. Powerful clamping force & high torque for rough and finish machining

Uniform shrinkage gripping force generated by thermal expansion and contraction delivers over twice the clamping power of ER collets under the same outer diameter. No slipping or tool dropping during heavy cutting.
Integrated one-piece structure maximizes rigidity, anti-vibration performance for deep cuts and hard material machining without chatter marks.
Supports high feed rates and deep cutting depths, boosting machine efficiency and reducing single-piece processing time.

3. Slim compact design, zero interference for deep & narrow cavities

Thin-wall front end with small taper (3°/4.5° slim version) without protruding nuts or collets, far better clearance than ER and hydraulic holders.
Reaches deep mold cavities, narrow ribs, 5-axis undercuts and deep slots, avoiding collision risks of conventional holders.
Higher rigidity with identical overhang length, allowing shorter tool projection and extended tool service life.

4. Superior dynamic balance for ultra-high spindle speeds

Fully symmetrical smooth body without protruding nuts, zero extra unbalance and low wind resistance at high rotation. Achievable balance grade G1/G2.5.
Compatible with high-speed spindles from 20,000rpm to 40,000rpm, perfect for high-speed machining of graphite, aluminum alloy and micro cutters.
Minimal vibration during high-speed rotation.

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