Shrink Fit Chuck
Shrink Fit Tool Holder
Shrink fit chuck realize the dream of all-round ultra-high precision machining
The heat-shrinkable tool holder, also known as the sintered tool holder, adopts a heat-shrinkable clamping structure. It uses induction heating to expand the inner hole for tool clamping, and then cools it to achieve the clamping effect. In addition to maintaining reliable clamping performance at high speeds, reducing the outer diameter of the tool holder improves the anti-interference ability of the tool holder, which is especially suitable for high-speed milling processes with high speed and interference requirements.
Good rigidity
CR standard type chuck with one-piece thickness and super clamping force can be corresponded in rough and fine processing.
Overcome interference in deep hole machining
The SR slim type is more suitable for using in narrow spaces and corner interference problems.
3µm high precision
Run out≦0.003mm
Increase surface roughness to reduce tool loss
After a special heat treatment process,
After a special heat treatment process, the chuck can maintain best accuracy and life.
Overcome interference processing
The SR slim type is more suitable for using in narrow spaces and corner interference problems.
Heating machine (sintering machine) specifications
FAQ
Product FAQS
How to Install the Tool Correctly?
Heat the tool holder to 250-425°C to expand the inner diameter, insert the tool quickly, then cool and shrink for interference fit to prevent tool slippage. Use a dedicated induction heater, controlling time within 1 minute for precision.
Differences from Traditional Collets?
Shrink-fit holders offer stronger clamping, higher precision (runout ≤3μm), no cumulative errors, ideal for high-speed cutting, but require a shrink-fit machine for changes. Compared to collets, longer life and less vibration, but more complex maintenance.
How to Maintain to Avoid Failures?
Regularly clean inner bore carbon buildup with dedicated cleaners, avoid overheating; if pull-out is difficult, check for contaminants. Maintenance extends life and ensures clamping stability.
