This boom cylinder is the power pillar of semi-coal roadheaders, driving the entire cutting boom through heavy-duty lifting and lowering cycles in alternating coal and rock strata. Operating at a 35 MPa high-pressure platform with thrust up to 1,718 kN, it balances powerful cutting performance with fatigue life and energy economy — ideal for the variable load conditions of mixed-face cutting. A forged high-strength alloy steel barrel, precision hard-chrome plated piston rod, wide bronze guide rings, and multi-stage high-pressure seals ensure precise, reliable, and leak-free pitching motion under frequent impact, heavy dust, and water spray.

This boom cylinder is the power pillar of heavy hard-rock roadheaders, dedicated to driving the entire cutting boom through extreme-duty lifting and lowering cycles. It uses an ultra-high-pressure 40 MPa system and a massive bore up to 250 mm to deliver a record-breaking 1,963 kN of thrust, holding the cutting head rock-steady against the heaviest rock reaction forces. An oversized forged steel barrel, a special coated heavy-duty piston rod, and multi-stage high-pressure seals give it the unmatched strength and durability required for continuous hard-rock cutting.

This arm cylinder is designed for special roadheaders such as rock drift roadheaders, tunnel roadheaders, and other non-standard machines. Mounted between the main boom and the arm, it hydraulically pitches the cutting head up and down to precisely control the cutting depth and profile in varied ground conditions from soft rock to hard rock. Covering bores from 80 mm to 200 mm, a 40 MPa ultra-high-pressure design delivers a thrust of up to 1,257 kN and a pull force of up to 641 kN, with the smallest model providing 201 kN of thrust — lower than the hard-rock arm cylinder’s 314 kN, thus extending the range downward to smaller special roadheaders. A forged high-strength alloy steel barrel, a hardened piston rod, multi-stage high-pressure seals, and internal cushioning ensure precise, leak-free pitching motion under severe shock, dust, and water spray.

This arm cylinder is designed for roadheaders working in alternating coal and rock strata. It pitches the cutting boom to accurately control the excavation profile while coping with rapidly changing loads. Its 40 MPa ultra-high-pressure system delivers up to 1,257 kN of thrust, with a forged steel barrel, hardened piston rod, and high-pressure sealing providing the fatigue and side-load resistance needed for mixed-face cutting.

This arm cylinder is purpose-built for the working mechanism of heavy hard-rock roadheaders, mounted at the articulation between the main boom and the arm (stick). It hydraulically pitches the arm up and down to precisely control the cutting head's height and attack angle for accurate profiling in the hardest rock. With a 40 MPa ultra-high pressure design, it delivers up to 1,257 kN of thrust and 641 kN of pull. An oversized forged steel barrel, a hardened piston rod, and multi-stage high-pressure seals give it the extreme rigidity and durability needed to withstand the massive side-loads, abrasion, and impacts encountered during hard-rock cutting.

This rotation cylinder is designed for the slewing system of semi-coal roadheaders. It hydraulically rotates the cutting boom to profile the full face in alternating coal and rock strata. Operating at 25 MPa with thrust up to 785 kN, it balances cutting performance with energy efficiency. A high-strength alloy steel barrel, precision hard-chrome plated piston rod, multi-stage seals, and bidirectional cushioning ensure precise, leak-free, and low-maintenance rotary drive under variable loads, heavy dust, and intense vibration.

This rotation cylinder is purpose-built for the slewing mechanism of heavy hard-rock roadheaders. It hydraulically rotates the cutting boom to sweep the entire tunnel face. With a 40 MPa ultra-high pressure design, it delivers up to 1,257 kN of thrust. An oversized forged steel barrel, a hardened piston rod, and multi-stage high-pressure seals give it the extreme rigidity and durability needed to withstand the massive side-loads, abrasion, and impacts encountered during hard-rock cutting.

This shoveling plate cylinder is designed for roadheaders operating in semi-coal formations with alternating soft and hard layers. Working at a 40 MPa ultra-high pressure, it delivers up to 1,257 kN of thrust to powerfully gather mixed material that includes hard rock inclusions. An oversized forged steel barrel, a specially hardened piston rod, multi-stage high-pressure seals, and bidirectional cushioning combine to provide super-strong thrust and exceptional durability under the frequent impacts, heavy dust, and mixed-media loading typical of semi-coal headings.

This shoveling plate cylinder is a top-tier actuator purpose-built for heavy hard-rock roadheaders. Working at an ultra-high pressure of up to 40 MPa, it delivers a massive thrust of up to 1,257 kN to powerfully gather and load even the toughest fragmented rock. With an oversized high-strength steel barrel, a specially treated piston rod, multi-stage high-pressure seals, and bidirectional cushioning, it is the ultimate solution for the extreme impact, abrasion, and vibration encountered in hard-rock headings.

This swing cylinder is the core actuator of the swing mechanism on roadheaders, mounted between the cutting boom or apron and the main frame. During roadway excavation, it hydraulically swings the cutting boom left and right to achieve full-face cutting coverage, or swings the apron to expand the loading range. Covering bores from 50 mm to 200 mm, strokes up to 3,000 mm, and thrust up to 628 kN at 20 MPa, it meets the swing drive requirements of everything from light coal-roadway machines to heavy hard-rock roadheaders. With a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage seals, and bidirectional cushioning, it delivers smooth, precise, and leak-free swing motion under the severe conditions of dust, vibration, and frequent cycling — a key component for ensuring roadway profile quality and excavation efficiency.

This front support cylinder is the core actuator of the temporary roof support system on roadheaders, mounted on the support arm above the cutter head or at the front of the main body. After the heading is excavated and before permanent bolting is installed, it rapidly raises the support beam and firmly presses it against the exposed roof, providing safe temporary protection for the operator and equipment against roof separation or collapse. Covering bores from 50 mm to 200 mm, strokes up to 3,000 mm, and thrust up to 785 kN at 25 MPa, it meets the support force requirements of both light and heavy roadheaders. With a high-strength alloy steel barrel, precision hard-chrome plated piston rod, multi-stage seals, and hydraulic load-holding locks, it delivers absolutely reliable, leak-free locking force under the severe conditions of dust, vibration, and frequent cycling — a key component for ensuring roadway heading safety.

This shoveling plate cylinder is a core actuator for the apron of roadheaders. It raises, lowers, and swivels the apron to gather cut material and direct it into the conveyor. With bores from 63 mm to 200 mm and working pressures up to 32 MPa, it delivers a maximum thrust of 1,005 kN. Built with a high-strength alloy steel barrel, a precision chrome-plated piston rod, multi-stage sealing, and bidirectional cushioning, it ensures smooth, leak-free, and highly reliable operation under the severe conditions of high pressure, intense vibration, and heavy dust underground.