This clamping cylinder (pressurized cylinder) is the core actuator of the mold locking system in tire vulcanizing presses. Mounted in the locking mechanism of the upper or lower mold half, it extends its piston rod after mold closure and holds it under continuous pressure, firmly locking the mold halves together. This resists the high internal steam pressure (several MPa) generated during curing, preventing mold separation that would cause flash or scrap. A high-thrust design (up to 760 kN) with an exceptionally low leakage rate ensures the piston drift is virtually zero over the entire curing cycle — which can last tens of minutes to hours. Combined with specially formulated high-temperature seals, an integrated hydraulic lock, bidirectional cushioning, and dust protection, it delivers absolutely reliable, zero-leakage clamping force in the high-temperature, high-humidity, high-cycle environment of the curing shop. It is a key guarantee for uniform tire curing and high product yield.

This upper ring cylinder is a critical actuator of the central mechanism in tire vulcanizing presses. Mounted at the top center of the press, it hydraulically raises and lowers the upper chuck to perform two essential operations: loading the green tire and pre-shaping it before curing. During loading, the cylinder lowers the upper chuck to grip the tire together with the lower chuck; during shaping, it holds a precise position and clamping force, allowing the green tire to expand uniformly under internal steam pressure against the mold cavity. A compact double-acting design with a maximum thrust of 384 kN, combined with high-temperature seals, bidirectional cushioning, and dust protection, ensures precise, smooth, leak-free lifting and shaping even under the high-cycle, high-temperature, high-humidity conditions of a curing shop. It is a core guarantee for tire quality and production efficiency.

This lower ring cylinder is the core actuator for the lower ring lifting and locking system in tire vulcanizing presses. Mounted around the base of the lower mold, it hydraulically raises and locks the lower ring (lower steam chamber or shield) into position. During the curing cycle, the cylinder must withstand the thrust and radiant heat of high-pressure, high-temperature steam, while maintaining a reliable seal between the lower ring and upper ring to prevent leaks. A compact double-acting design with a maximum thrust of 384 kN integrates a bidirectional cushioning system, high-temperature seals, and dust protection, delivering precise, smooth, leak-free lifting and locking performance over years of service in high-cycle, high-temperature, and high-humidity curing shops.

This tire loading and unloading cylinder is a key auxiliary actuator in tire vulcanizing presses. Mounted on the press manipulator or alongside the green tire conveyor, it extends and retracts its piston rod to fully automate the processes of capturing and loading the green tire into the mold, and later extracting and unloading the finished tire. A medium-stroke, high-thrust design delivering up to 164 kN, combined with a special low-friction seal package, anti-pressure-trap drain ports, and a wear-resistant piston rod surface, ensures precise, smooth, leak-free tire handling even in the high-temperature, high-pressure, high-cycle environment of the curing shop. It significantly boosts the automation level and productivity of tire vulcanizing presses.

This shooting cylinder (injection unit traverse cylinder) is the core actuator of the injection unit movement system in injection molding machines. Mounted between the injection unit carriage and the machine frame rails, it hydraulically advances and retracts the entire injection unit, enabling precise engagement and disengagement of the nozzle with the mold sprue bushing. During injection, the cylinder firmly holds the unit forward, maintaining a tight nozzle-sprue seal to prevent melt leakage; during plastication pauses or shutdowns, it retracts the unit for purging, color changes, or mold maintenance. A compact double-acting design with a maximum thrust of 384 kN, combined with a special low-friction sealing system, anti-pressure-trap drain ports, and a long-life surface-treated piston rod, delivers precise, smooth, leak-free injection unit movement control under high-frequency cycling, rapid response, and continuous production. It is a key guarantee for stable injection in high-speed precision molding machines.

This ejection cylinder is the core actuator of the mold ejection system in injection molding machines. Mounted on the rear side of the moving platen, it hydraulically extends its piston rod to drive the ejector plate, smoothly pushing the finished part out of the mold cavity. A multi-force design with a maximum thrust of 760 kN, combined with a special low-friction sealing system, anti-pressure-trap drain ports, and a long-life surface-treated piston rod, delivers precise, leak-free, low-film ejection motion under high-frequency cycling, rapid retraction, and continuous production. It is a key guarantee for efficient, stable part demolding in high-speed precision injection molding machines.

This mold opening and closing cylinder is the core power element of the clamping unit in injection molding machines. Mounted between the machine’s fixed platen and the moving platen, it hydraulically extends and retracts its piston rod at high frequency to rapidly close and lock the mold halves, or open them for part ejection — completing the injection, holding, cooling, and demolding cycle. A compact, double-acting heavy-duty design with a maximum thrust of 384 kN, combined with a special low-friction sealing system, anti-pressure-trap drain ports, and a long-life surface-treated piston rod, delivers smooth, precise, leak-free clamping motion under high-frequency reciprocation, rapid response, and continuous production. It is a key guarantee for the efficient and stable operation of high-speed precision injection molding machines.

This mold transfer cylinder (reciprocating cylinder) is the core actuator for rapid mold changing and multi-station switching in injection molding machines. Mounted on the machine’s transfer carriage or rotary table, it hydraulically extends and retracts its piston rod at high speed to shuttle the mold from the clamping station to the injection station, or to alternate between two mold halves. A long-stroke, low-pressure high-flow design with a maximum stroke of 4,000 mm, combined with a special low-friction sealing system and anti-pressure-trap drain ports, delivers smooth, low-film, leak-free high-speed mold transfer even under high-frequency reciprocation, fast cycling, and continuous production. It significantly shortens mold-change time and boosts the overall productivity of injection molding machines.

This filter press cylinder is the core actuator of chamber, plate-and-frame, and membrane filter presses. Mounted at the follower end of the press, it extends or retracts its piston rod to move the pressure plate, firmly clamping the filter plate stack to form a sealed, pressure-tight filtration chamber. During high-pressure slurry feeding, the cylinder maintains constant clamping force to prevent leakage between plates; when discharging, it quickly retracts the plate to release the filter cake. Designed for ultra-high pressure (up to 45 MPa) with a maximum thrust of 11,889 kN, the cylinder integrates multi-stage sealing, a high-capacity guide system, and a specially treated piston rod. It delivers extremely high reliability and zero-leakage performance under sustained holding, frequent cycling, and exposure to corrosive media — a critical guarantee for the stable operation of large automatic filter presses.

This master cylinder is the absolute heart of ultra-large forging press lines. Vertically installed at the center of the press crown, it extends its super-large-diameter plunger under high-pressure hydraulic oil to apply up to 80 MN of main forging force, driving the moving crosshead and upper anvil against the workpiece. It is used for upsetting, drawing, piercing, and closed-die forming in open-die, die-forging, and multi-directional forging processes. The single-acting plunger design features a maximum plunger diameter of 1,800 mm, making it one of the world’s most powerful hydraulic cylinders. Integrated wide bronze guide bushings, multi-layer V-pack seals, built-in magnetostrictive displacement sensors, and a progressive cushioning system, together with super-nut locking and optional booster cylinders/rotary unions, provide extremely smooth, precise, and long-lived main thrust output under the sustained extreme loads, radiant heat, and hammer-vibration conditions of industrial forging plants — truly the unbeating heart of 5,000-tonne-class and larger presses.

This side cylinder is one of the core power elements of ultra-large forging press lines. Symmetrically mounted on either side of the main cylinder, it works together with the main cylinder to apply downward forging force on the moving crosshead. In large open-die and die-forging operations, when the main cylinder alone cannot provide sufficient force, the side cylinders synchronously engage, each delivering up to 24.7 MN of thrust. Together they form the combined force necessary for upsetting, drawing, or closed-die forming of heavy cross-section billets. A super-large-diameter plunger design (up to 1,000 mm) integrates wide bronze guide bushings, a replaceable V-pack sealing system, built-in magnetostrictive displacement sensors, and super-nut locking, delivering stable, precise, synchronous thrust under sustained extreme loads, intense heat radiation, and heavy hammer vibration — making it an indispensable asset for 5,000-tonne-class and larger presses.

This return cylinder (plunger type) is a dedicated auxiliary power element working alongside the main cylinder and side cylinders in forging press lines. Typically mounted symmetrically beneath the moving crosshead or on the press bed, it uses high-pressure hydraulic oil to extend its large-diameter plunger upward, briskly and steadily lifting the multi-hundred-tonne moving crosshead back to its starting position for the next forging stroke. A single-acting plunger design delivers extremely high thrust (up to 3,206 kN) with a long stroke (up to 3,000 mm). Wide bronze guide bushings, a V-pack seal system, and built-in displacement sensors ensure stable, precise, zero-leakage return force even under sustained high temperatures, intense vibration, and high-cycle impacts. Compared with piston types, plunger-type return cylinders are simpler in construction and easier to maintain, making them especially suitable for the confined spaces of large open-die and die-forging presses.