Crane Counterweight Hydraulic Cylinder

Crane counterweight hydraulic cylinder is an important device that realizes crane balance through hydraulic transmission mechanism. It is mainly composed of cylinder body, piston, piston rod, sealing element, oil filter, hydraulic pipeline and oil tank. The working principle is based on Pascal's law, that is, in a closed container, pressure is transmitted to every point in the liquid, and the pressure acting on the liquid is proportional to the area. When the crane is lifting, the hydraulic pump presses the oil into the cylinder, causing the piston to rise, thereby increasing the hook height. When the load of the crane increases, the oil inside the cylinder will be compressed and the piston will drop, thus achieving the balance of the crane.

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Product Description

Crane counterweight hydraulic cylinder function: used for installation of counterweight blocks

Specifications:

Bore diameter 85mm～320mm
Rod diameter 55mm～180mm
Stroke≤1500mm
Pressure: Max 35MPa

Oil seal brand:

1.Japanese NOK, Parker oil seal, American MPI, Swedish SKF, Austrian polyurethane oil seal, accept customer-specified brands.
2.The sealing rings that can overcome the conditions of use in various industries such as engineering machinery, mining machinery, and lifting and transportation, as well as the company's unique sealing system design, effectively solve the problem of oil leakage at the piston rod end and dry friction of the piston rod.

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Advantages:

• Compact structural design and use of high-strength materials ensure the ultimate lightweight of the cylinder
• Designed to withstand a wide temperature range (-40℃～+100℃), and can provide customized services for higher or lower temperature cylinders
• Mature sealing system ensures that the cylinder does not vibrate or crawl at low speeds
• Systematic theoretical analysis and finite element calculations ensure that the cylinder has an extremely long service life under heavy loads.
• The guide sleeve adopts special anti-corrosion technology, so there will be no problem of guide sleeve rusting
• Provide a variety of surface anti-corrosion treatment solutions: spray ceramic, QPQ, etc.
• For all-terrain cranes, cylinder head blocks and guide rail assemblies can be configured
• Working pressure, dimensions, installation methods, etc. can be customized according to customer needs