BZZ5-315C Hydraulic Steering unit

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Description
The BZZ5-315C Hydraulic Steering Unit is a high-performance, heavy-duty hydrostatic steering device, specially developed for large-scale machinery and equipment. As a key model in the BZZ5 series, it integrates advanced load-sensing technology and optimized structural design, delivering precise control, stable operation and strong adaptability, making it an ideal choice for hydraulic steering systems that bear heavy loads and work in harsh environments.

Overview of the BZZ5-315C Hydraulic Steering Unit

The BZZ5-315C Hydraulic Steering Unit belongs to the mature BZZ5 series of hydraulic steering products, with the “315” representing its core displacement specification of 315 ml/r and the “C” indicating its upgraded structure for enhanced durability and compatibility. It is composed of a precision rotary valve, a high-strength gerotor meshing pair, and a sealed pump body, adopting hydrostatic transmission technology that eliminates the need for mechanical linkage between the steering wheel and steered components.
Designed for heavy-duty working conditions, this steering unit effectively handles high load pressures while maintaining sensitive and smooth steering performance. Its compact structure and reasonable layout not only save installation space but also reduce the overall weight of the equipment, facilitating installation and maintenance.

Key Features of the BZZ5-315C Hydraulic Steering Unit

The BZZ5-315C stands out from ordinary hydraulic steering units with its outstanding features, all tailored to meet the high-demand requirements of large-scale machinery.
First, it features advanced load-sensing flow distribution. The unit can automatically adjust the oil flow according to the steering load and operating speed, ensuring that the steering system gets the required flow priority. This design not only improves steering sensitivity but also reduces energy consumption, making the equipment more efficient.
Besides, it supports reliable emergency manual steering. In case of engine failure, oil pump malfunction or power outage, the operator can switch to manual steering mode with minimal force, ensuring the safety of the equipment and personnel, and avoiding operational interruption.
In addition, it boasts excellent durability and wear resistance. The rotary valve, gerotor pair and pump body are made of high-strength alloy materials,经过 precision machining and heat treatment to enhance hardness and wear resistance. The optimized sealing structure also effectively prevents oil leakage, extending the service life of the unit in dusty, wet or high-temperature environments.
Last but not least, it has wide compatibility and easy maintenance. The BZZ5-315C can be seamlessly matched with various hydraulic pumps, steering cylinders and control valves, suitable for different types of large-scale machinery. Its simple structure and fewer vulnerable parts also reduce maintenance costs and downtime.

Working Principle of the BZZ5-315C Hydraulic Steering Unit

The working principle of the BZZ5-315C is simple and efficient, relying on hydrostatic pressure to transmit steering force without mechanical connection, ensuring precise and smooth control.
When the operator turns the steering wheel, it drives the rotary valve inside the steering unit to rotate. This rotation controls the direction of hydraulic oil flow from the supply pump, guiding the oil into the left or right cavity of the steering cylinder according to the steering direction.
The oil pressure pushes the piston of the steering cylinder to move, driving the steered wheels to turn at a precise angle. The displacement of the gerotor meshing pair is proportional to the rotation angle of the steering wheel, ensuring that the steering angle is controllable and consistent every time. If the oil supply is insufficient, the unit can also work as a manual pump to maintain normal steering.

Applications of the BZZ5-315C Hydraulic Steering Unit

With its heavy-duty design and stable performance, the BZZ5-315C Hydraulic Steering Unit is widely used in large-scale machinery and equipment across various industries.
It is mainly applied to large construction machinery, such as large wheel loaders, excavators, road rollers and bulldozers. These devices rely on the unit’s strong load-bearing capacity and precise steering to improve work efficiency on large construction sites.
In addition, it is suitable for heavy-duty agricultural machinery (such as large tractors and combines), mining machinery (such as mining loaders and transport vehicles), and marine vessels (such as small and medium-sized ships for rudder control). It can also be used in forestry machinery and engineering vehicles, meeting the diverse steering needs of heavy-duty equipment in different fields.

Hydraulic Steering unit

Why Choose the BZZ5-315C Hydraulic Steering Unit?

Choosing the BZZ5-315C Hydraulic Steering Unit means choosing reliability, efficiency and safety, which is the best choice for optimizing the steering system of large-scale heavy-duty machinery.
Compared with similar products, it has stronger load-bearing capacity, higher energy efficiency and longer service life. The emergency manual steering function adds an extra layer of safety, reducing operational risks in harsh working conditions.
Its wide compatibility and easy maintenance also help reduce equipment operation and maintenance costs, bringing long-term value to users. Whether you need to equip new large-scale machinery or replace an old steering unit, the BZZ5-315C can meet your high-demand steering needs.
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