High Temperature Hydraulic Cylinder

High-temperature hydraulic cylinders are engineered to withstand extreme thermal environments while maintaining precise operation, featuring specialized materials and cooling systems that enable reliable performance in 200-500°C applications. These robust actuators incorporate ceramic-coated piston rods, stainless steel alloy bodies (310S/316L), and fluorocarbon-based sealing systems that resist degradation under continuous heat exposure. Water-cooled gland assemblies and thermal barrier technologies protect critical components, allowing the cylinders to deliver consistent forces from 1-500 tons even in radiant heat conditions near molten metal. Their advanced designs include heat-dissipating fins and graphite-impregnated bushings that provide dry-running capability during cooling system interruptions, while integrated temperature sensors enable real-time thermal monitoring.  

 

In steel production, these cylinders precisely control continuous casting mold oscillation and rolling mill descaling systems, enduring scale buildup and steam exposure while maintaining ±0.1mm positioning accuracy. Glass manufacturing utilizes them for forehearth flow regulation, where borosilicate wipers protect against molten splash and air-purged chambers prevent particulate accumulation. Aluminum smelters depend on their anodized aluminum housings and titanium components to withstand electrolyte splashes during anode positioning. Cement plants employ heavy-duty versions with multi-stage air filtration for kiln adjustment under constant dust exposure, while petrochemical refineries use explosion-proof models with metal bellows seals for valve control in cracking units.  

 

Emerging applications include concentrated solar power systems, where the cylinders position reflector panels in desert conditions, and aerospace component testing that simulates re-entry temperatures. Their ability to combine extreme environment durability with precision motion control makes them indispensable for industries where conventional hydraulic systems would fail, with advanced models now incorporating IoT-enabled thermal management systems that optimize cooling flow based on real-time heat load data.