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Hydraulic Cylinder

  • Rail Support Cylinder
    This rail support cylinder is a specialized actuator for the rail stabilization system on large railway maintenance machines, typically mounted in pairs at the front of the rail support arms of tamping machines or ballast cleaners. During lifting, lining, or cleaning operations, when the rail and sleepers are raised or shifted laterally, this cylinder extends its side support roller or shoe from the side to press against the rail web or base, providing lateral restraint to prevent the track panel from tipping or swaying, ensuring both operational safety and precise restoration of track geometry. A medium-stroke double-acting design (300 mm stroke) delivers 35 kN of thrust and 26 kN of pull at 18 MPa. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage dust-proof seals, and bidirectional cushioning, it maintains stable rail support force and reliable, leak-free performance under heavy vibration, flying ballast, and all-weather outdoor operation.
  • Lift Cylinder
    This lift cylinder is a light-duty vertical drive element for auxiliary devices on large railway maintenance machines, mounted on the vertical slides of mechanisms such as auxiliary clamps, small baffles, or guide devices. During operation, it hydraulically extends or retracts its piston rod to smoothly raise or lower the working attachment to a precise height, or to lift it to a safe retracted position. A medium-stroke double-acting design (208 mm stroke) delivers 29.4 kN of thrust and 22 kN of pull at 15 MPa. 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, stick-slip-free, leak-free vertical reciprocating motion under heavy vibration, flying ballast, and all-weather outdoor operation.
  • Jack Cylinder
    This jack cylinder is an actuator for powerful pushing or supporting applications on large railway maintenance machines, mounted at positions requiring high thrust and very short stroke for lifting or locking. During track construction or equipment maintenance, it hydraulically extends its piston rod with a short, powerful stroke, delivering up to 171 kN of thrust for local lifting, equipment support, or mechanical locking. An ultra-short-stroke high-thrust design (only 30 mm stroke), combined with an oversized piston rod (Φ100 mm) and precision hard-chrome plating, provides absolutely reliable thrust under the severe conditions of high vibration, heavy dust, and all-weather outdoor operation along railway lines — a key component for ensuring track construction safety and reliable equipment locking.
  • Shaft Jacking Cylinder
    This shaft jacking cylinder is an actuator for auxiliary locking and positioning systems on large railway maintenance machines, typically mounted at points requiring mechanical locking or shaft positioning. During operation or transit, it hydraulically extends its piston rod with a short stroke, inserting a locking pin or push block into a corresponding locating hole or shaft groove to achieve a positive mechanical lock or precise shaft positioning. An ultra-short-stroke design (only 52 mm stroke) delivers a powerful 125.6 kN of thrust at 16 MPa. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, low-friction seals, and a dust-proof system, it maintains reliable locking force under the severe conditions of intense vibration, heavy dust, and all-weather outdoor operation on the track, preventing unintended equipment movement and ensuring the safety and accuracy of railway maintenance operations.
  • Traverse Cylinder
    This traverse cylinder is a lateral drive element for auxiliary devices on large railway maintenance machines, mounted on the traverse slide of auxiliary clamps, ballast plates, or guide panels. During operation, it hydraulically extends or retracts its piston rod to shift the working attachment horizontally left or right, achieving precise lateral positioning or retracting the device to a safe distance from the rail when not in use. A medium-to-long-stroke double-acting design (545 mm stroke) delivers 56 kN of thrust and 37.7 kN of pull at 18 MPa. 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, stick-slip-free, leak-free lateral movement under heavy vibration, flying ballast, and all-weather outdoor operation.
  • Auxiliary Track Lifting Cylinder
    This auxiliary track lifting cylinder is an auxiliary actuator of the lifting system in heavy railway maintenance machines such as tamping and track lifting-and-lining vehicles, mounted in pairs ahead of or behind the main lifting unit. During lifting, it works in coordination with the main lifting cylinder, performing fine secondary adjustments after the track panel has been raised to an approximate height, or pre-positioning the track panel front end to ensure the entire track section achieves precise longitudinal smoothness and design elevation. A long-stroke double-acting design (650 mm stroke) provides a wider adjustment range, delivering 141 kN of thrust and 112 kN of pull at 18 MPa. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage combination seals, and bidirectional cushioning, it provides long-term, high-precision, stick-slip-free, leak-free auxiliary lifting drive under the severe conditions of high vibration, heavy impact, dust, and all-weather outdoor operation — a key component for ensuring fine-tuning quality of the track.
  • Clamp Cylinder
    This clamp cylinder is the direct gripping actuator of the rail clamp system in heavy railway maintenance machines such as tamping and track lifting-and-lining vehicles, mounted in pairs between the clamp arm and the jaw. During lifting, lining, or rail replacement, it hydraulically extends or retracts its piston rod with a short, powerful stroke, quickly closing the jaws to firmly grip the rail head or web, providing a secure mechanical hold for track raising, lateral shifting, or fixing. A short-stroke double-acting design (112 mm stroke) delivers 22 kN of thrust and 13 kN of pull at 18 MPa. 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 long-term, precise, stick-slip-free, leak-free clamping drive under the severe conditions of high vibration, heavy impact, dust, and all-weather outdoor operation — a key component for ensuring a firm grip and operational safety.
  • Track Lifting Cylinder
    This track lifting cylinder is the core actuator of the lifting system in heavy railway maintenance machines such as tamping and track lifting-and-lining vehicles, mounted in pairs between the vehicle frame and the lifting clamp assembly. During lifting, it hydraulically extends its piston rod powerfully, raising the clamps together with the rail and sleepers to a precise height for tamping or shimming, restoring the track to its design elevation. A medium-stroke double-acting design (435 mm stroke) delivers 220 kN of thrust and 185 kN of pull at 18 MPa, easily overcoming the weight of the track panel and ballast resistance. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage combination seals, and bidirectional cushioning, it provides long-term, high-precision, stick-slip-free, leak-free lifting drive under the severe conditions of high vibration, heavy impact, dust, and all-weather outdoor operation — a key component for ensuring track longitudinal smoothness and running safety.
  • Longitudinal Shift Cylinder
    This longitudinal shift cylinder is an auxiliary actuator of the lifting and lining system in heavy railway maintenance machines such as tamping and track lifting-and-lining vehicles, mounted on the longitudinal slide of the lifting or lining assembly. During operation, it hydraulically moves the entire assembly a short distance longitudinally along the rail to precisely position the working point, or retracts the device away from the rail when not in use. A medium-stroke double-acting design (410 mm stroke) delivers 50 kN of thrust and 30 kN of pull at 16 MPa. 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, leak-free longitudinal movement under heavy vibration, flying ballast, and all-weather outdoor operation.
  • Rail Lifting Hook Cylinder
    This rail lifting hook cylinder is a key actuator of the lifting system in heavy railway maintenance machines such as tamping and track lifting vehicles. Typically mounted in pairs between the lifting frame and the hook arm, it extends its piston rod to lower the hook and reliably engage it under the rail head, then retracts the hook to a safe height after the lift. A medium-stroke double-acting design (361.5 mm stroke) delivers 80 kN of thrust and 55 kN of pull at 16 MPa. 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 long-term, precise, stick-slip-free, leak-free hook actuation under the severe conditions of high vibration, flying ballast, and all-weather outdoor operation on the track.
  • Deflection Cylinder
    This deflection cylinder is an actuator for angle adjustment of working attachments on large railway maintenance machines, mounted at the deflection pivot of mechanisms such as tamping frames, ballast regulating plates, or wing blades. During operation, it hydraulically extends or retracts its piston rod with a specific stroke (e.g., 456.5 mm) to deflect the attachment around its pivot, achieving precise angle adjustment or lateral obstacle avoidance. A double-acting design delivers stable push and pull force at 16 MPa. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage combination seals, and bidirectional cushioning, it provides long-term, high-precision, stick-slip-free, leak-free deflection drive under the severe conditions of high vibration, heavy dust, and all-weather outdoor operation on the track — a key component for ensuring the flexibility and precise positioning of maintenance equipment.
  • Track Lining Cylinder
    This track lining cylinder is the core actuator of the lining system in heavy railway maintenance machines such as tamping and track lining vehicles, mounted in pairs between the vehicle frame and the rail clamp assembly. During track geometry correction, it hydraulically extends or retracts its piston rod forcefully, pulling the clamp together with the rail and sleepers horizontally sideways to the design alignment, achieving precise track direction correction. A medium-to-long-stroke double-acting design (540 mm stroke) delivers up to 141 kN of thrust and 112 kN of pull at 18 MPa, easily overcoming lateral track resistance. Combined with a high-strength alloy steel barrel, a precision hard-chrome plated piston rod, multi-stage combination seals, and bidirectional cushioning, it provides long-term, high-precision, stick-slip-free, leak-free lining force under the severe conditions of high vibration, heavy impact, dust, and all-weather outdoor operation on the track — a key component for ensuring track smoothness and running safety.
WUXI PAZON TECHNOLOGY CO., LTD
PAZON is a professional provider of hydraulic systems and precision metal components. We offer reliable, high-performance solutions supported by integrated R&D, production, and global supply.

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