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GL-08L4
cissoko
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The GL-08L4 hydraulic lock for dump trucks is a critical safety component designed specifically for heavy-duty dump trucks and their cargo bodies. Constructed from high-strength alloy materials, this compact yet robust lock ensures the cargo body remains securely locked in any position, effectively preventing accidental lowering caused by hydraulic system leaks or malfunctions. It utilizes advanced pilot-operated check valve technology, offering a wide operating pressure range and rapid response capabilities. Engineered for harsh environments such as mines and construction sites, the unit features a specialized anti-corrosion surface treatment that guarantees long-term durability and performance stability, making it an essential safety upgrade for heavy-duty dump truck hydraulic systems.
Core Features: Equipped with bidirectional hydraulic locking and mechanical limit triggering functions. It can completely shut off the oil circuit when there is no control pressure. When the cargo box is raised to its highest limit angle, the connecting rod on the valve core is subjected to physical impact, automatically cutting off the hydraulic power.
Benefits: 100% prevention of carriage falls and rollover accidents . Even if a high-pressure oil pipe ruptures unexpectedly, it can instantly lock the oil circuit, preventing the carriage from collapsing and injuring personnel ; at the same time, it can forcibly restrain the carriage at a safe angle, preventing excessive lifting from causing the vehicle to overturn. Its plug-in design allows for extremely quick maintenance; if damaged, simply unscrew it for replacement without disassembling the entire vehicle's piping.
| Parameter | Specification |
|---|---|
| Product Type | Knock-off valve |
| Model Number | XYF-E20L-02 |
| Total Range | 24mm |
| Adjustable Range | 15mm |
| Pneumatic Control Range | 0.6~1.2MPa |
Applications
Core Applications: Dump trucks and heavy-duty tipper semi-trailers
use dump truck lifting systems for highway freight and construction sites. When the cargo box is lifted for unloading or manual maintenance, it acts as a safety baseline component , locking the hydraulic cylinder to prevent the cargo box from accidentally falling, while also providing physical limits to prevent over-lifting and rollover.
Harsh working conditions: Mining and engineering machinery
are widely used in off-highway mining dump trucks, garbage compactors, and sanitation hooklift trucks. In rugged mining areas or high-frequency sanitation scenarios, it can withstand extremely high hydraulic impact loads, ensuring zero drift locking of large-tonnage cargo boxes at tilt angles.
Matching structure: Threaded cartridge valve assembly integration
Due to its standard YYS08 industrial cartridge structure , it is usually directly screwed into the multi-way directional valve block, cylinder base or dedicated safety valve assembly of the dump truck, and works in conjunction with the pilot pneumatic valve to form a compact high-pressure hydraulic control circuit.
Dump Truck Hydraulic Lock GL-08L4 Valves are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
A: It mainly solves two fatal hidden dangers: First, it prevents the lifting oil pipe from rupturing and falling. When the lifting oil pipe suddenly ruptures, it can instantly lock the oil cylinder to prevent the several-ton truck bed from falling. Second, it limits the movement to prevent rollover . When the truck bed is raised to the maximum safe angle, it automatically cuts off the oil circuit by mechanically impacting the valve core to prevent the truck bed from being raised too high and causing the whole vehicle to roll over.
A: Threaded cartridge type means that the valve is a separate threaded assembly. It can be screwed directly into the dump truck cylinder base or hydraulic integrated valve block like a bolt. The biggest benefit is extremely fast maintenance : if the valve core wears out, maintenance personnel do not need to disassemble the complex vehicle piping; they can simply unscrew it out and replace it in a few minutes, greatly reducing downtime.
A: Very likely. This valve has a mechanical knock-off function. If the limit linkage jams when the dump truck is at its highest point, or if the pilot control pressure of the hydraulic system is insufficient, the hydraulically controlled check valve inside the valve may not be able to open in reverse, causing the oil circuit to be locked, resulting in the truck bed only rising and not falling. When troubleshooting, first check if the limit contact rod has reset.
A: As a standard YYS08 series industrial cartridge valve, its rated flow rate is typically around 30 liters/minute (30 L/min) . Its structure is precision-manufactured using high-strength alloy materials [FLYBY HYDRAULIC], and it is specifically designed to match the harsh operating conditions of heavy-duty dump trucks and heavy-load semi-trailers under medium to high pressure (typically exceeding 20-30 MPa) .
A: When replacing parts, three core indicators must be checked: First, the installation thread specification (such as common M18, G3/8, etc., must be completely consistent); second, the limit stroke length (the effective pushing stroke of its mechanical contact rod); and third, the control ratio . It is recommended to directly contact domestic or cross-border heavy truck parts supply chains to obtain original factory standard parts.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
GL-H1220-AO-Integral Shunt Combination Valve are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the Valve does not contain hazardous materials.
Factory Testing: Every valve is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Cissoko hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Cissoko Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
