This arm cylinder is a key actuator of the working arm system in steep incline hard rock excavators. Mounted at the articulation point between the main boom and the arm (stick), it extends and retracts its piston rod to swing the arm, working in tandem with the excavating cylinder to achieve precise full-face digging, mucking, and loading at the tunnel heading. An ultra-high-pressure medium-long-stroke design (rated 40 MPa, stroke 632 mm) delivers 804 kN of powerful thrust from a compact bore, withstanding the frequent impact loads and side-load conditions typical of hard rock excavation. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free reciprocating motion under the severe conditions of high pressure, heavy dust, intense vibration, and steep incline operation — making it a key component for flexible and efficient excavation.

This heavy-duty rear support cylinder is the primary actuator of the machine stabilization system in steep incline hard rock excavators. Mounted in pairs at the main support positions of the rear chassis, it forcefully extends its piston rod downward under ultra-high hydraulic pressure, pressing the large-area support shoes firmly against the tunnel floor to provide solid reaction anchoring and vibration absorption for the entire machine. Compared to the auxiliary-type rear support cylinder, this model features a noticeably larger bore and higher thrust (1,018 kN), specifically designed for extreme conditions such as steep shaft boring, deep-hole blasting, and hard rock fragmentation. It effectively resists the intense impact and downhill slip tendency caused by the machine's own weight and digging reaction forces, ensuring stable posture and accurate tunnel profile. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust seals, bidirectional cushioning, and integrated hydraulic locks, it delivers absolutely reliable support and locking force in the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a core component for the safe and stable operation of steep incline hard rock excavators.

This heavy-duty shoveling plate cylinder is a powerful auxiliary actuator of the loading system in steep incline hard rock excavators. Mounted on the plate arm or auxiliary bucket linkage, it uses ultra-high hydraulic pressure to drive the auxiliary plate downward or to tilt, achieving powerful scraping, loosening, and gathering of blasted rock on a hard tunnel face. Compared to the standard shoveling plate cylinder, this model features a larger bore and significantly higher thrust/pull force (up to 1,017 kN), specifically designed to handle severe conditions such as hard rock floors and oversized debris. With a high-tensile alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust seals, and bidirectional cushioning, it maintains leak-free, impact-resistant, and high-efficiency operation under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for boosting the loading capacity of steep incline hard rock excavators.

This swing cylinder is the core actuator of the shoveling plate oscillation system in steep incline hard rock excavators. Mounted between the machine chassis and the plate slewing platform, it extends and retracts its piston rod to swing the shoveling plate left and right, enabling efficient mucking, gathering, and loading of blasted rock from the entire tunnel face onto the conveyor. Compared to the boom swing cylinder, this model features a larger bore and higher thrust (804 kN) to handle the greater side loads and impacts encountered during mucking. An ultra-high-pressure heavy-duty design (rated 40 MPa), combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage seals, and bidirectional cushioning, provides stable, reliable, leak-free swing motion under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for efficient loading.

This boom lift cylinder is the primary power element of the working arm system in steep incline hard rock excavators. Mounted between the machine chassis and the front boom, it hydraulically raises and lowers the boom to achieve full-face height coverage for digging, mucking, and loading. An ultra-high-pressure heavy-duty design (rated 40 MPa) delivers powerful thrust up to 1,256 kN from a compact structure. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage seals, bidirectional cushioning, and an optional built-in displacement sensor, it provides stable, reliable, leak-free lifting motion under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it the core component ensuring powerful excavation capability and high construction efficiency.

This rear support cylinder is a critical actuator of the machine stabilization system in steep incline hard rock excavators. Mounted in pairs on both sides of the rear chassis, it extends its piston rod downward to firmly press the support shoe against the tunnel floor during excavation, providing reliable reaction anchoring for the entire machine. In steep incline shaft construction, this cylinder effectively counteracts the tendency to slide downward due to the equipment's own weight and excavation reaction forces, ensuring stable machine posture and accurate tunnel profile. An ultra-high-pressure short-stroke design (rated 40 MPa) delivers 615 kN of powerful support force from a compact bore. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides reliable, leak-free support and locking force under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for the safe and stable operation of steep incline hard rock excavators.

This shoveling plate cylinder is a critical actuator of the loading system in steep incline hard rock excavators. Mounted between the shoveling plate arm and the machine frame, it extends and retracts its piston rod to tilt or translate the plate, enabling efficient mucking, gathering, and loading of blasted rock onto the conveyor at the tunnel face. An ultra-high-pressure short-stroke design (rated 40 MPa) delivers 615 kN of powerful thrust from a compact bore, withstanding the frequent impacts, side loads, and abrasive wear typical of hard rock excavation. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free reciprocating motion under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for continuous loading and rapid advance.

This swing cylinder is the core actuator of the working arm swing system in steep incline hard rock excavators. Mounted between the machine body and the working arm slewing platform, it extends and retracts its piston rod to swing the arm or shoveling plate left and right, enabling full-face coverage of the tunnel heading. An ultra-high-pressure long-stroke design (rated 40 MPa, stroke 690 mm) delivers 415 kN of thrust from a compact bore. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free swing motion under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for flexible and efficient excavation.

This excavating cylinder is an auxiliary actuator of the working arm system in steep incline hard rock excavators. Mounted at the articulation point between the arm and the bucket or mucking device, it extends and retracts its piston rod to assist the main excavating cylinder in fine digging, mucking, and loading operations at the tunnel face. An ultra-high-pressure compact design (rated 40 MPa) delivers 530 kN of thrust from a smaller bore, withstanding the frequent impact loads and side-load conditions typical of hard rock excavation. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free digging force under the severe conditions of high pressure, heavy dust, intense vibration, and steep incline operation — making it a key auxiliary component for flexible and efficient hard rock excavation.

This right lift cylinder is a core actuator of the body attitude adjustment and working arm auxiliary system in steep incline hard rock excavators. Typically mounted on the right side of the machine, it extends and retracts its piston rod to smoothly raise and lower the right working arm or auxiliary platform. During inclined shaft or steep tunnel construction, the cylinder must withstand the lateral force due to the equipment’s own weight while maintaining precise position control in tilted postures, ensuring the accuracy of the tunnel profile. An ultra-high-pressure design (rated 40 MPa) delivers 530 kN of thrust from a compact bore. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free lifting motion under the severe conditions of high pressure, heavy dust, intense vibration, and inclined operation — making it a key component for precise excavator attitude control and construction safety.

This excavating cylinder is the core actuator of the working arm system in steep incline hard rock excavators. Mounted at the articulation point between the main boom and the arm, it extends and retracts its piston rod to drive the bucket through digging, mucking, and loading operations at the tunnel face. An ultra-high-pressure heavy-duty design (rated 40 MPa) delivers up to 804 kN of thrust from a compact bore, withstanding the frequent impact loads and side-load conditions typical of hard rock excavation. Combined with high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it provides stable, reliable, and leak-free digging force under the severe conditions of high pressure, heavy dust, intense vibration, and steep incline operation — making it a key actuator for efficient rock breaking.