As a crucial energy storage device in hydraulic systems, our Piston-Type Hydraulic Accumulator is designed to optimize system performance with its rational structure, reliable working principle and versatile functions. It is widely used in various industrial fields, providing stable and efficient energy storage support for hydraulic systems.

Structure Composition
The core structure consists of cylinder barrel, piston, sealing assembly, charging valve and oil inlet/outlet.

The cylinder body is mostly made of high-strength alloy steel, ensuring excellent pressure resistance and structural stability.

The piston is usually made of aluminum alloy or stainless steel, and surface treatment is performed to improve wear resistance and seal life.

Working Principle
High-pressure hydraulic oil enters the accumulator cavity and pushes the piston to move towards the gas side, compressing the pre-charged inert gas and converting hydraulic energy into gas potential energy for storage. When the system pressure drops, the compressed gas expands to push the piston back, releasing the stored energy back to the system in the form of hydraulic oil.

Product Series & Technical Specifications
We offer three main types of hydraulic accumulators to meet diverse application requirements. Custom specifications are available upon request.

Features
Advantages
Simple structure and long service life

Light weight, easy installation and convenient maintenance

Oil is not easy to oxidize, ensuring stable system operation

Limitations
Due to the inertia and friction of the piston, the response sensitivity is poor

Not suitable for low-pressure pulsation absorption

Main Functions
Act as an auxiliary power source to reduce installed capacity

Compensate for leakage in the hydraulic system

Serve as thermal expansion compensation

Act as an emergency power source for critical operations

Constitute a constant pressure oil source

Absorb hydraulic shocks and eliminate pulsations

Recover and reuse energy to improve energy efficiency

Application Scenarios
Our hydraulic accumulators are perfectly integrated into various hydraulic systems, providing reliable support for key industries:

Construction Machinery: Hydraulic systems of excavators, cranes, loaders, and bulldozers

Manufacturing: Hydraulic presses, injection molding machines, and automated production lines

Mining Equipment: Hydraulic systems of mining trucks, rock drills, and conveyor belts

Marine & Offshore: Hydraulic systems of ships, offshore platforms, and port machinery

Energy & Utilities: Hydraulic systems of wind turbines, hydroelectric power plants, and steam turbines

Application Fields
Our Piston-Type Hydraulic Accumulator is widely applied in metallurgy, construction machinery, ships, aerospace, oil and gas exploitation, and new energy equipment fields. Its application in wind power pitch control systems, hydrogen compression stations, and electro-hydraulic hybrid drive vehicles is also increasingly extensive.

Technical Specifications