This boom pitch cylinder series (also referred to as Skeleton Pitch Cylinder) is the primary actuator for the boom luffing system of large stacker reclaimers. Mounted between the gantry and the boom, it hydraulically pushes and pulls the entire boom to pivot around its hinge point, precisely adjusting the stacking height and reclaiming cut angle, directly determining the efficiency of bulk material handling in stockyards. Featuring an ultra-high thrust, medium-to-long stroke heavy-duty design, combined with low‑friction sealing, a specially anti‑corrosion guide bushing system, and an integrated safety valve package, it provides smooth, reliable, zero‑drift boom support under the continuous dust, rain, snow, acidic/alkaline coal dust, and frequent luffing cycles typical of open‑air mines and ports — ensuring safe and stable stacker reclaimer operation.

This tripper luffing cylinder series is designed for the tail car (tripper) luffing mechanism of large stacker reclaimers. Mounted between the tripper boom and the traveling gantry, it hydraulically raises and lowers the tripper to switch between stacking and reclaiming modes — tilting up to discharge material onto the boom belt during stacking, and lowering to allow material from the pile to flow onto the ground conveyor during reclaiming. With a heavy-duty high-thrust design, medium-to-long stroke, specially anti-corrosion guide bushing system, and integrated safety lock, it reliably withstands outdoor rain, snow, coal dust, and ore fines, providing stable luffing support for stacker reclaimers in bulk ports, power plants, and steel mills.

This belt tensioning cylinder series is designed for large stacker reclaimers, bucket-wheel stacker reclaimers, and belt conveyor systems. Installed on the take-up trolley or tension pulley, it adjusts and maintains the belt tension by hydraulic push or pull force. With a long-stroke, high-pressure locking design integrating low-friction seals and a counterbalance/hydraulic lock valve, it remains reliably locked in position for extended periods, compensating for temperature changes and material surges. Enhanced dust-proofing and anti-corrosion features make it ideal for continuous coal, ore, and bulk material handling in ports, power plants, and mines.