This door opening cylinder is a key actuator of the protective system in high-speed rail flash-butt welding machines, mounted at the hinge or slide bracket of the welding chamber door. It extends and retracts to smoothly open or close the protective door — closing before welding to isolate the welding zone and prevent sparks and fumes from escaping, ensuring operator and environmental safety; opening after welding to allow removal of the finished rail and preparation for the next operation. A compact long-stroke design (710 mm stroke), combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, provides stable, reliable, leak-free door motion under the severe conditions of outdoor operation, frequent cycling, and welding spatter — an essential auxiliary device for safe continuous welded rail construction.

This hoist cylinder is the core actuator of the onboard lifting system in high-speed rail flash-butt welding machines, mounted between the lifting boom and the hook. It extends and retracts to smoothly hoist, precisely align, and butt the rail ends to be welded — a key component ensuring the welding quality and construction efficiency of continuous welded rail for high-speed railways. A large-bore long-stroke design (1,050 mm stroke), combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, provides stable, reliable, leak-free lifting motion under the severe conditions of outdoor operation, frequent hoisting, and strong impact vibration, fully meeting the all-weather, high-intensity demands of high-speed rail construction.

The leveling cylinder is the core actuator of the automatic platform leveling system on self-propelled aerial work platforms. It continuously adjusts the platform angle via hydraulic closed-loop or follow-up circuits, keeping the platform perfectly horizontal regardless of boom angle or chassis tilt — essential for operator safety and precise overhead work. Featuring lightweight compact construction, ultra-low-friction sealing, and an anti-corrosion guide bushing design, it delivers smooth, stepless leveling and long-term reliability under frequent use and harsh outdoor conditions.

This steering cylinder series is designed for the chassis steering system of self-propelled aerial work platforms. It drives the steering linkage or knuckles to precisely angle the wheels, delivering nimble maneuverability in confined job sites and elevated corridors. Built with extreme light-weighting as a priority, high-strength alloy materials, precision sealing, and multi-layer anti-corrosion technologies, it ensures stable, jerk-free steering performance under high-frequency, variable-load conditions and severe outdoor environments.

This suspension cylinder series is designed for independent chassis suspension systems of truck cranes and all-terrain cranes. Serving as the core actuator and damping component of hydro-pneumatic or active suspension systems, it combines elastic support, shock absorption, and ride height adjustment in one unit. Operating in conjunction with accumulators, the cylinder absorbs road shocks and vibrations while enabling dynamic chassis height control, ensuring superior ride comfort, stability, and tire ground contact during highway travel, off-road driving, and lifting operations. Built with a high-rigidity lightweight structure, ultra-low-friction long-life sealing, and multiple anti-corrosion solutions, it provides long-lasting reliability under all-weather, heavy-duty, and high-impact conditions.

This outrigger extension cylinder series serves as the horizontal actuator for truck crane chassis outrigger systems. It extends and retracts the outrigger beams horizontally from the vehicle sides, expanding the overall stabilizer span to provide a solid base for the vertical jack cylinders. The cylinder features an ultra-long stroke (up to 2500mm or more), a lightweight high-strength design, and can be built in two- or three-stage telescopic configurations to achieve large extension ratios within compact retracted lengths. Integrated low-friction sealing, a corrosion-resistant guide system, and multi-function safety valve packages ensure long-term smooth, stick-free horizontal deployment in severe conditions such as frequent cycling, mud, and winter road salts.

This counterweight cylinder series is the core actuator for the self-installation counterweight system of truck cranes. It lifts, lowers, and shifts counterweights, enabling rapid assembly and disassembly without auxiliary lifting equipment — greatly improving job-site relocation efficiency. Built with a high-strength lightweight structure, ultra-low-friction sealing, multiple anti-corrosion treatments, and integrated safety valve packages such as hydraulic locks, the cylinder can be supplied in multi-stage configurations with dual independent control and specialized guide rail assemblies for all-terrain chassis. It ensures safe holding, smooth motion, and long service life under heavy counterweight masses (several to tens of tons) and frequent relocation operations.

This steering cylinder series is designed for the chassis steering system of truck cranes. It drives the steering linkage or knuckles to precisely angle the wheels, delivering excellent maneuverability and safety margins during on-highway travel, tight job-site steering, and all-terrain off-road conditions. Featuring a lightweight, high-strength structure, ultra-low-friction sealing, and multiple anti-corrosion treatments, the cylinders can be supplied in multi-stage configurations with dual independent control circuits and specialized guide rail assemblies for all-terrain cranes, meeting modern truck crane demands for precise steering, durability, and low maintenance.

This front suspension cylinder series is the core load-bearing and damping element of the hydro-pneumatic suspension system on large mining dump trucks. Mounted between the front axle and the chassis frame, it simultaneously supports the front laden weight, absorbs road shocks, attenuates body vibration, and maintains front wheel ground contact through the elastic-damping coupling of high-pressure oil and nitrogen gas. Compared to rear suspension, the front suspension must additionally accommodate side loads and angular articulation from steering; therefore, the cylinder features a reinforced anti-side-load guiding system and maintenance-free spherical pivot connections. Together with custom-tuned non-linear stiffness and damping characteristics based on vehicle parameters, it ensures superior ride comfort, steering precision, and frame durability under combined operating conditions such as loaded downhill hauls, rough curved roads, and braking.

This rear suspension cylinder series is the core load-bearing and damping element of the hydro-pneumatic suspension system on large mining dump trucks. Mounted between the rear axle and the chassis frame, it supports the fully loaded vehicle weight, absorbs road shocks, attenuates body vibration, and equalizes axle load distribution through the combined action of hydraulic oil and high-pressure nitrogen. Featuring an ultra-high pressure design (rated 38 MPa) and large-diameter piston construction, and operating in conjunction with external or built-in accumulators, it delivers non-linear stiffness and damping characteristics. This ensures excellent ride comfort and uniform frame stress distribution under extreme conditions such as fully loaded uphill hauls, rough mine roads, and heavy dumping, significantly extending chassis and tire life. Enhanced for the rock impacts, mud, dust, and continuous heavy-duty operation typical of open-pit mines, it offers exceptional fatigue durability and long-term reliability.

This lifting cylinder series is the core actuator of the dump body hoist system on large mining dump trucks. Mounted between the chassis frame and the dump body underbelly, it hydraulically raises and lowers the body to rapidly discharge ore, overburden, and other bulk materials. Employing a multi-stage telescopic design (typically 2-stage or 3-stage), it achieves an ultra-long stroke and tens of thousands of kN of thrust within a compact retracted length, ensuring smooth, safe dumping even at full load on several-hundred-tonne class trucks. Built with an extreme heavy-duty structure, purpose-designed multi-stage sealing, and built-in cushioning, it operates reliably under continuous heavy-duty cycles, frequent hoisting, and intense vibration in mining environments.

This steering cylinder series is purpose-built for the chassis steering system of large mining dump trucks. Serving as the core actuator linking the steering linkage and knuckles, it hydraulically assists wheel deflection, providing precise and smooth steering response under full load, on rough mine roads, and during frequent maneuvering. The cylinder ensures handling stability and even tire wear. Enhanced for open-pit mine conditions — rock impacts, mud, dust, and continuous long-distance operation — it delivers exceptional fatigue durability and maintenance-free capability.