This pitch cylinder series is the core actuator of the hydraulic pitch system in large wind turbines. Mounted on the rotating cylinder base inside the hub, it precisely rotates the blades around their longitudinal axis via hydraulic servo control, enabling real-time pitch angle adjustment. Under normal operating conditions, the cylinder fine-tunes the blade angle to optimize aerodynamic efficiency. During extreme gusts or emergency stops, it rapidly feathers the blades to a safe position, achieving aerodynamic braking. Designed with a compact structure, ultra-low-friction long-life sealing, and full-lifecycle maintenance-free operation, it performs reliably over the turbine's entire 20+ year service life in the extreme conditions found at the tower top — temperature extremes, continuous vibration, salt spray, and high humidity.

This heliostat tracking cylinder is the core servo actuator of the heliostat system in solar power tower plants. Receiving closed-loop commands from the master controller, it precisely adjusts the mirror tilt and azimuth via a servo hydraulic system to track the sun's path throughout the day, maximizing reflected solar energy onto the central receiver. Featuring an ultra-long-life low-friction sealing system, comprehensive UV-resistant anti-corrosion design, and an integrated displacement sensing interface, it operates stably for decades in harsh desert, high-altitude, intense UV, and extreme temperature swing environments, ensuring the heliostat field generates power efficiently and reliably.

This desalination cylinder is the primary actuator in high-pressure pump trains or energy recovery systems of reverse osmosis (RO) seawater desalination plants. It is specifically designed to draw in, pressurize, and deliver seawater to reverse osmosis membrane elements under highly corrosive conditions. Entirely fabricated from duplex stainless steel with a weld-free design, and featuring ceramic-coated bore and piston rod, along with specialized wiper seals and integrated inlet/outlet valves for seawater service, the cylinder delivers exceptional reliability, minimal maintenance, and zero risk of hydraulic fluid contamination despite 24-hour continuous operation and exposure to microorganisms and fine sediment. It provides an ultra-long-life, environmentally clean hydraulic power solution for both land-based and marine desalination facilities.

This wave/tidal power generation cylinder is the key actuator and energy conversion element in marine hydrokinetic energy devices. It directly harnesses the reciprocating motion of waves or tidal currents, converting massive low-speed mechanical energy into high-pressure hydraulic energy with exceptional efficiency. The high-pressure oil then drives a hydraulic motor-generator set to produce electricity. Designed with ultra-long stroke, extremely low friction, and high-frequency fatigue resistance, it operates reliably in the splash zone, intertidal area, or fully submerged conditions for years on end. Its combination of high energy conversion efficiency, outstanding seawater corrosion resistance, and long sealing life makes it the ideal power core for floating, shore-based, or nearshore wave/tidal power plants.

This platform raising cylinder series is the core power component for the drill floor lifting system of truck-mounted rigs, workover rigs, and modular drilling units. It smoothly raises the drill floor (complete with rotary table, drawworks, etc.) from a low transport position to working height, and safely lowers it back. Designed with a high-thrust, long-stroke multi-stage telescopic configuration, it achieves vertical lifting strokes of several meters up to nearly ten meters from the carrier’s compact installed length, easily bearing the immense total weight of the drill floor and all attached equipment. Integrating a high-strength lightweight structure, low-friction long-life seals, and integrated safety locking valve packages, it ensures stable lifting and zero-drift locking even in extreme environments such as desert, Gobi, or coastal salt spray, significantly improving rig mobility and operational safety.

This mast raising cylinder series is the core power component for the mast systems of oil drilling rigs, workover rigs, and truck-mounted drilling equipment. It smoothly raises the mast from a horizontal transport position to a vertical working position, and safely lowers it back down. As the critical first step in rig deployment, the cylinder features an ultra-long stroke, high-thrust multi-stage telescopic design with a maximum stroke of up to 14,000mm, fully raising multi-section masts from a compact installed length. Integrating an extreme heavy-duty structure, low-friction long-life seals, and anti-sway safety valve packages, it ensures stable lifting and zero-drift locking even in extreme temperature swings, high winds, and sandy environments typical of deserts and offshore platforms, significantly improving operational efficiency and crew safety.