Source durable construction machinery cylinders engineered for excavators, loaders, cranes, and other heavy-duty equipment, with OEM and custom manufacturing support.
Construction machinery cylinders turn hydraulic pressure into the controlled force used to raise booms, extend outriggers, stabilize equipment and operate attachments. In mobile cranes and material handlers, cylinder geometry, mounting accuracy, rod finish and sealing performance directly influence load control, equipment stability and service life.
Jiangxin supplies OEM and replacement hydraulic cylinders for construction and engineering machinery, including lifting structures, horizontal extension systems, support legs and hydraulic grabs. We support drawing-based manufacturing, application-specific materials and repeat batch supply for equipment manufacturers, distributors and maintenance buyers.
Begin with the machine function and duty cycle, then verify bore, rod diameter, stroke, installation length, mounting centers, port position, working pressure and environmental exposure. Matching the load path and interfaces is essential for safe installation and predictable motion.
| Cylinder type | Primary function | Key sourcing checks |
|---|---|---|
| Amplitude cylinder | Raises or lowers a crane or material-handler boom | Load moment, pin centers, stroke, cushioning and side-load control |
| Horizontal cylinder | Extends or retracts an outrigger or telescoping structure | Closed length, guide alignment, port clearance and buckling margin |
| Support leg cylinder | Levels and stabilizes mobile construction equipment | Vertical load, holding performance, foot interface and contamination protection |
| Grab cylinder | Opens and closes a hydraulic grapple or attachment | Cycle rate, pivot geometry, compact mounting and impact resistance |
For an accurate quotation, send the cylinder drawing or existing part number together with the machine model, required quantity, operating pressure, duty cycle and working environment. Our engineering team can review critical interfaces before sampling or repeat production.
Provide a drawing or measured sample covering bore, rod diameter, stroke, retracted and extended length, mounting interfaces, pin sizes, ports and working pressure, along with the machine model, function and expected quantity.
Yes. Engineering review can cover dimensions, materials, seals, surface treatment, weld details, ports, cushioning, test requirements and packaging before sample or production approval.
An amplitude cylinder controls boom angle, a horizontal cylinder extends a stabilizer or telescoping section, and a support leg cylinder applies vertical force to level and stabilize the machine. Each requires different mounting, load-holding and alignment checks.
Compare functional dimensions and interfaces first, then confirm pressure rating, load direction, seal compatibility, surface protection, cushioning and the real duty cycle. A similar external shape alone does not confirm interchangeability.