Our hollow piston rods enable internal hydraulic oil circulation, addressing thermal management in high-duty cycle applications. The through-bore design (diameter 8-60 mm) allows coolant flow to reduce rod temperature by 40%, extending oil life and preventing viscosity degradation. The inner and outer surfaces undergo hard chrome plating (30μm) and micro-finishing (Ra ≤0.2μm) to minimize fluid resistance and corrosion. Used in injection molding machines (24/7 operation), press brakes, and metal forming equipment, these rods reduce system downtime by 25%. A patented turbulator design within the bore enhances heat transfer efficiency, while the stress-relieved structure prevents fatigue failure. Request thermal imaging test results or view our hollow rod application videos at [https://www.uranustj.com/].