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MINING MACHINERY HYDRAULIC CYLINDER

Heavy-duty cylinders for mining loaders, haulage equipment and material handling, matched to high loads, long duty cycles and abrasive environments.
Products
Mining Machinery
Mining Machinery
  • Applicable Tonnage: 2 ~ 40t
  • Bore Diameter: 50 ~ 380mm
  • Rod Diameter: 30 ~ 190mm
  • Stroke: 200 ~ 10000mm
  • Working Pressure: 16 ~ 38MPa
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PRODUCT
DESCRIPTION
  • It is compatible with various mining machinery (tunneling machines, coal mining machines, hydraulic supports, crushers, etc.). The bore diameter, rod diameter, and stroke can be customized according to the working conditions. The rated working pressure is 20–35 MPa, and the peak pressure can reach 42 MPa, meeting the stringent requirements of heavy-duty, impact, and high-frequency operations underground.
  • The cylinder barrel is fabricated from high-strength alloy steel with precision-honed seamless tubes, ensuring high inner wall smoothness and low friction resistance. Combined with fully automatic robotic welding, post-weld stress relief treatment, and non-destructive testing, it has high structural strength, impact resistance, and deformation resistance. It can withstand long-term, high-load reciprocating working conditions without leakage, offering excellent fatigue durability.
  • The piston rod is made of 45# / 40Cr alloy steel and comes standard with hard chrome plating. It also offers a variety of anti-corrosion and wear-resistant strengthening solutions, such as Ni/Cr electroplating, QPQ salt bath composite treatment, and laser cladding. It is perfectly suited for humid, dusty, and corrosive media environments in underground mines, featuring high hardness, excellent resistance to wear and scratches, and superior corrosion resistance, which greatly extends its service life.
  • The sealing system can be equipped with imported Hallite / Parker / Trelleborg high-end seals, and adopts a multi-layer dustproof + guide + buffer sealing structure to effectively resist the intrusion of coal dust and mud while resisting pollution and aging. Explosion-proof valves, balance valves, relief valves, one-way locks, hydraulic oil pipes, and other safety components can be designed according to requirements, making it ideal for core motion control such as support, pushing conveyors, cutting, and crushing.
  • Designed to withstand temperatures from -30 °C to +120 °C, high and low temperature hydraulic cylinders can be customized for special working conditions such as cold mining areas and high-temperature underground environments, adapting to various extreme and harsh operating environments.
Heavy-duty mine service

Review the Complete Mining Load Case

A mining machinery hydraulic cylinder works under high loads, shock, dust and long operating cycles. Bore and stroke are only part of the selection. The machine geometry, load direction, pin alignment, working and peak pressure, installed lengths and contamination exposure must be reviewed together for a new or replacement configuration.

Hydraulic mining machinery operating in an open pit mine
Mining cylinders operate as part of a high-load structure, linkage and hydraulic circuit.
Selection inputs

What We Need to Quote Your Mining Cylinder

Supply the worst operating load case and the interfaces shown on the machine drawing.

CategoryRequirementsPurpose
Machine and functionLoader, haulage, excavation or handling equipment model, cylinder function and quantityDefines the mechanism and operating sequence.
Load and pressureRated, peak and shock load, working and peak pressure, flow and design marginSupports force, stability and duty review.
Stroke and geometryStroke, closed and extended lengths, cylinder angle and linkage dimensionsShows the load path through the full motion.
Mounts and alignmentPin, clevis, trunnion or flange dimensions, bearing details and side-load controlsConfirms fit and alignment at the structure.
Mine environmentDust, abrasive material, moisture, temperature, fluid, cycle rate and service accessGuides sealing, guarding and surface-treatment discussion.
Engineering review

Load, Alignment and Protection Review

Send the machine assembly drawing, hydraulic schematic and load information for the most demanding operating condition. We confirm mounting datums, pin interfaces, rod-end geometry, port access and hose clearance. For a replacement, include wear observations and installed photos so alignment or side-load issues are not copied into the new unit.

Send your cylinder specificationInclude drawings or measured interfaces so fit, function and hydraulic connections can be checked before quotation.
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Buyer questions

Mining Machinery Cylinder FAQ

Which mining machines use hydraulic cylinders?

Applications can include loaders, excavating and handling equipment, haulage systems, dump bodies and support or positioning mechanisms.

Can bore size be selected from machine tonnage?

No. The cylinder load depends on linkage geometry, cylinder angle, pressure, friction, acceleration and the most demanding operating condition.

How should abrasive dust be addressed?

Provide the dust type, exposure level, cleaning method and service interval so rod protection, wipers, seals and guards can be reviewed.

What should be checked on a replacement?

Confirm all dimensions, pin and mount wear, port orientation, pressure, load direction and side loading before approving the replacement drawing.

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