Product Introduction

56B-43-12402 Hydraulic Valve Assembly
The 56B-43-12402 hydraulic valve assembly is a core hydraulic control component for mining dump trucks, integrating solenoid directional valves, solenoid coils, and valve blocks into a single unit. It is primarily used for switching hydraulic circuits and regulating pressure in heavy-duty mining vehicles, controlling the operation of various hydraulic actuators throughout the vehicle. Manufactured with precision valve machining technology, it offers stable sealing performance, high pressure resistance, and impact tolerance, making it suitable for harsh mining site conditions. This valve assembly can directly replace damaged original units, effectively resolving issues such as circuit sluggishness, directional failure, and unstable pressure. Widely compatible with heavy-duty mining dump equipment, it serves as a key hydraulic spare part for construction machinery maintenance and replacement.
Kernel Parameter
• Part Number: 56B-43-12402
• Product Name: Integrated Electromagnetic Hydraulic Valve Block
• Operating Voltage: 24V DC
• Suitable Equipment: Mining dump trucks, heavy-duty mining machinery
• Function: Hydraulic circuit directional control, hydraulic system pressure regulation
• Operating Conditions: Heavy-duty and harsh environments in mines and construction sites
• Installation Method: Flange-mounted integrated valve block, direct replacement during machine assembly
Main Functions
1. Oil circuit direction control: Utilizing electromagnetic directional valves to switch the flow direction of hydraulic oil, controlling the actions of the corresponding hydraulic mechanisms of the equipment, with sensitive response and stable switching.
2. System pressure regulation: The integrated valve block comes with a pressure regulating structure, stabilizing the working pressure of the hydraulic system and avoiding damage to other hydraulic components due to excessive pressure.
3. Electromagnetic electronic control drive: 24V electromagnetic valve coil is electrically controlled and can operate when connected to the vehicle circuit, without the need for manual mechanical adjustment, and is compatible with the vehicle's electronic control system.
4. Integrated assembly valve block: The valve body, electromagnetic valve, and coil wiring harness are integrated into one assembly, reducing pipe joint points and lowering the failure points of oil leakage, making installation and replacement convenient.
5.Adverse working condition tolerance: The valve body is cast with high strength, resistant to vibration and dust, suitable for heavy-load continuous operation scenarios in mines.

Products Description

Complete assembly shipment: The valve block, electromagnetic valve, coil, and wiring harness are all included in the package. Once received, you can directly install it without the need for separate purchase of components.
Strict manufacturing process: The valve body is precisely processed, and the sealing parts have reliable quality, reducing internal leakage and external oil leakage problems.
Suitable for heavy-duty mining conditions: Resistant to impact and vibration, suitable for long-term and high-intensity operation of mining vehicles.
Direct replacement of original vehicle parts: Part number 56B-43-12402. The installation holes and interface dimensions match the original vehicle, making the modification easy.
Complete testing: The product undergoes pressure testing upon leaving the factory to ensure hydraulic performance and reduce the risk of faults after installation.
Applicable Fault Scenarios
· The hydraulic system of the mining dump truck has sluggish directional response and fails to switch properly.
· The hydraulic valves leak oil, the valve bodies leak oil, and the coils do not actuate when powered on.
· The pressure in the hydraulic system is abnormal, either failing to reach the required pressure or exceeding the overload limit.
· The old valve assembly is worn out and damaged, requiring the entire machine to be repaired and the hydraulic control valve assembly to be replaced.







