# CST Systems: Serving the Corrugated Converting and Paper Industry
> CST Systems provides solutions for corrugator and printing needs\. Roll movers, brakes, humidity control, chucks, \& more industrial supplies\.
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## Pages
- [Renova Revolution ROI Calculator](https://cstsystems.net/renova-revolution-roi-calculator/)
- [FOSBER Replacement Parts](https://cstsystems.net/products/fosber-replacement-parts/)
- [BHS Replacement Parts](https://cstsystems.net/products/bhs-replacement-parts/)
- [SLITTER BLADES AND GRINDING STONES](https://cstsystems.net/products-category/slitter-blades-and-grinding-stones/)
- [Restricted](https://cstsystems.net/restricted/)
## Products
- [Roll and Core Ejection Chuck](https://cstsystems.net/product/roll-core-ejection-chuck/): The Duplex mandrel \introduces a breakthrough design\ that integrates a \mechanical expanding chuck\ with high\-gripping jaws and a pneumatic telescopic piston, perfectly concentric with the mandrel\. This feature allows operators to safely remove blocked cores and rolls on any roll stand, since the piston thrust force is always coaxial to the roll\.
\The Duplex mandrel maintains existing dimensional requirements\ without interfering with roll width\. It is available for single mandrels in 3" and 4" \(6" on request\) and the SM version for multiple diameter combinations\.
Exceptional features include:
100% adaptable to all roll stands
Plug \& play design
Maintenance\-free performance
- [Spring Roll and Core Ejector Chuck](https://cstsystems.net/product/spring-roll-core-ejector-chuck/): The Core\-Ejecting Chuck is the modern solution to core handling\. It combines \the proven reliability and robustness of the traditional \Renova core chucks\\ with a spring ejector to protect both operators and cores\.
\The narrow contact rim\ is designed for today's thinner core walls, applying pressure only to the core wall without damaging the surrounding rollstock\. \A reduced\-diameter spring plate\ maintains operator visibility during roll mounting\.
The plate is \guided by a true key system\ that ensures a smooth, reliable sliding action even when paper debris is packed around the chuck\.
\The powerful spring is calibrated\ to push firmly against a core up to the end of the chuck and no further\. The spring is normally at rest, so there is no danger in assembly or disassembly of the chuck\.
- [Service](https://cstsystems.net/product/service/): \On\-Site Maintenance Services\
CST Systems' expert engineers and field service technicians bring extensive experience and knowledge of corrugating machines, converting machines, and ancillary equipment used in package manufacturing operations\.
\Our field service technicians perform preventative, on\-site maintenance for \Renova Turborex Brakes\ and \Moviroll products\, ensuring reliable performance and compliance with operational and specification requirements\.\
\Please \contact us\ for more information or to schedule a service appointment\.\
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