The SCHUNK sealed reduction bushing represents an advanced technical solution designed to ensure maximum flexibility and precision when clamping tools with different shank diameters, allowing the use of a single toolholder for a wide range of applications. This model, part of the universal GZB-S series, is manufactured in a coolant-tight version and is compatible with TENDO, TRIBOS, SINO-R toolholders as well as all common hydraulic expansion toolholders, making it extremely versatile and easy to integrate into various production environments.

One of the key features of this reduction bushing is its outstanding run-out accuracy of ≤ 0.003 mm, which is essential for achieving high-quality machining results, flawless surfaces, and extremely tight dimensional tolerances. The coolant-tight design enables internal coolant supply up to a maximum pressure of 80 bar, ensuring direct and constant cooling of the tool. This significantly enhances cutting performance and tool life, while reducing the risk of overheating and deformation, thereby guaranteeing higher process reliability.

The closed collar design ensures a perfect seal throughout the entire operation, preventing coolant leakage and improving safety and cleanliness in the workplace. The SCHUNK reduction bushing is widely used in high-precision industries such as aerospace, automotive, precision engineering, and mold making, where secure clamping and efficient cooling are critical to achieving top-quality results.

In summary, this sealed reduction bushing combines versatility, precision, and reliability, offering professionals, technicians, and specialized operators a solution capable of optimizing machining processes and delivering consistently high performance even under the most demanding operating conditions.