Price: To be negotiated

Excavator accumulator

Exporter, Wholesale, Manufacturer
Tehran-South
+989122003350

Price: Negotiate

Price :negotiated

Excavator accumulator , Iran

Price :To negotiate
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The accumulator in heavy-duty cranes is typically manufactured in capacities of 6, 10, 20, and 32 liters, with the ability to withstand working pressures up to 350 bar. It is widely used in the hydraulic systems of cranes such as Liebherr 200–1200 tons lifting capacity and Tadano 100–600 tons. The primary role of the accumulator is to absorb hydraulic shocks, store compressed energy, and provide instant pressure for precise boom movements.

In mobile and all-terrain cranes, the accumulator is essential to prevent pressure drops during repetitive lifting cycles. For example, in a Grove 400-ton crane, a 20-liter accumulator operating at 300 bar can supply the necessary energy to safely move the boom in case of a temporary pump shutdown. This function not only enhances safety but also reduces wear on hydraulic pumps, thereby extending their service life.

Reputable manufacturers such as Hydac Germany, Parker USA, and Olaer France supply bladder- and piston-type accumulators specifically for heavy lifting equipment. Typically, the nitrogen pre-charge pressure is set between 0.9 and 1.0 times the system’s working pressure. Compliance with international standards like ISO 4413 and DIN 4807 during installation and maintenance ensures up to 10 years of service life and improves crane efficiency in construction and industrial projects.You can order and buy Excavator accumulator from Iran by contacting us through whatsaap and email.
WEBSITE: Excavator accumulator Iran

Signs of Crane Accumulator Malfunction IN IRAN

Malfunction in a crane accumulator is typically characterized by a reduction in hydraulic energy storage capacity and sudden pressure drops in the circuit. When the systems rated pressure, for example, drops from 280 bar to below 200 bar during loading, it indicates a discharge or failure of the internal nitrogen gas. Additionally, the occurrence of abnormal vibrations during boom movement or when lifting heavy loads, such as 300 tons in Liebherr and Tadano cranes, signifies a drop in efficiency and impaired accumulator function.

Other symptoms include an increase in the hydraulic system temperature beyond 80 degrees Celsius and an abnormal rise in return circuit pressure. Reduced operation speed of hydraulic cylinders and the need for the pump to run continuously to maintain pressure are also key indicators of accumulator failure. In some cases, observing oil leaks at the connection points or a change in the gas pre-charge pressure from the standard range of 0.9 times the operating pressure to below 0.6 times further confirms the functional defect.

Approximate dollar price range for Accumulators for cranes of various tonnages with the German brand Hydac IN IRAN

German Hydac accumulators in bladder and piston models with various capacities for cranes from 25 to 80 tons typically are offered in a price range of 700 to 1500. For example, a bladder accumulator with a capacity of 6 liters and a working pressure of 330 bar, used in the hydraulic suspension circuit of medium cranes, costs around 950. In contrast, 10-liter models with a nominal pressure of 350 bar, used for shock control and system stability in 80-ton cranes, have a price of around 1400.

For heavier cranes in the 100 to 300 ton range, piston accumulators with capacities of 20 to 32 liters are often used, with a price range of 1800 to 3500. For instance, a 32-liter Hydac accumulator with a design pressure of 350 bar, installed in the balance and emergency brake system of heavy cranes, costs around 3200. The price difference depends on factors such as storage capacity, diaphragm or piston type, and final pressure tolerance up to 400 bar.

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