Cycloidal rotary valve type full hydraulic steering gear | Lightweight and precise | Safe and reliable | Wide compatibility Product Overview
This full-hydraulic steering device is of the cycloidal valve type and open-no-reaction design. It is specifically developed for off-road mobile machinery and heavy vehicles. Without mechanical connecting rods, it relies solely on hydraulic transmission to provide steering power, achieving gentle control, precise follow-up, and stable reliability. It is suitable for scenarios such as construction machinery, agricultural machinery, forklifts, special vehicles, and ship steering systems. It is the ideal steering core for heavy and low-speed equipment.
Core advantage
Easy to operate and effortless: The hydraulic assistance is strong, while the steering wheel torque is small. It won't cause fatigue even after long-term operation.
Precision steering follow-up: The rotary valve's flow distribution is sensitive, and the steering wheel angle is precisely synchronized with the wheel deflection, without any delay.
Safety emergency steering: In case of engine shutdown or hydraulic failure, manual emergency steering can be performed to ensure driving safety.
No mechanical connecting rods: The installation layout is flexible, simplifying the main unit structure and reducing the failure rate and maintenance costs.
High-pressure sealing without oil leakage: Multi-level sealing and precise fit, capable of withstanding high pressure, resisting back pressure, and providing long-term leak prevention.
Long-lasting and shock-resistant with extended service life: The precision cycloidal pair and high-strength housing ensure resistance to impact and vibration, maintaining stability under harsh conditions.
High versatility and easy replacement: Compliant with industry standard interfaces, multiple options available for multiple sizes / flanges / oil ports, convenient for replacement.
Performance Characteristics
The forward and reverse movements are smooth, without shock or vibration, and the operation is stable.
Adaptable to wide flow and pressure ranges, compatible with various hydraulic systems
Strong anti-pollution ability and good adaptability to hydraulic oil
Integrated safety valves, buffer valves and oil replenishment valves are available, making the system more streamlined.
Support priority valve matching, steering priority, to ensure operational safety
Applicable scenarios
Construction machinery: Loaders, excavators, rollers, pavers, cranes
Agricultural machinery: High-power tractors, combine harvesters, seeders, and agricultural protection machinery
Industrial vehicles: forklifts, stackers, handling vehicles, storage equipment
Special vehicles: aerial work platforms, cleaning vehicles, mining machinery, port machinery
Vessels / Fisheries: Rudder control, net-lifting machine, and winch steering control for small vessels
Other equipment: Requires a hydraulic steering system with significant steering force and easy operation.
Specification selection (common)
Series: BZZ1/BZZ5/BZZ–E/C and all other series
Displacement: 80/100/160/200/250/315/400 ml/r
Rated pressure: Up to 16–20 MPa
Adapted flow rate: 10 - 60 L/min
Interface: Standard flange, output shaft, and oil port options are available.
Quality Assurance
Precision processing and 100% factory testing ensure stable and reliable performance.
High-quality materials and imported seals ensure a longer lifespan.
Support custom integrated valves, special interfaces, and non-standard sizes
Factory stock available. Quick delivery. Professional technical support.