Heavy-Duty Hydraulic Cylinder for Reliable Dump Truck Operations

Product Description

 

Product Description

Q:What is hydraulic cylinder for dump trucks?

Hydraulic cylinders for dump trucks are specialized hydraulic actuators designed for dump trucks. Their core function is to convert the pressure energy from the hydraulic system into mechanical energy, driving the dump truck body to perform lifting, tilting for unloading, and reset actions. As the central component enabling automatic unloading, they typically feature a multi-stage telescoping structure to accommodate the limited installation space on the vehicle and meet heavy-duty operational demands. Below is a detailed introduction:

Core Classification and Structure
Lifting Cylinder: This is the most critical hydraulic cylinder on a dump truck, typically employing a two-stage or three-stage telescopic sleeve structure. Composed of 2 to 5 nested cylinder tubes, it maintains a compact footprint when fully retracted while enabling long-stroke lifting when extended. Cylinder bodies are typically made of high-strength seamless silicon-manganese steel tubes. Piston rods undergo hard chrome plating and polishing, paired with heavy-duty seals to withstand harsh conditions in mines, construction sites, and similar environments. Common bore sizes range from 120mm to 380mm, enabling stable lifting of tens of tons of cargo.
Auxiliary Cylinders: Beyond the primary lift cylinder, dump trucks incorporate multiple auxiliary hydraulic cylinders to ensure overall vehicle functionality. For instance, the steering cylinder assists wheel steering with a maximum thrust of 779 kN. Front and rear suspension cylinders support the vehicle's weight and absorb vibrations during operation, withstanding pressures up to 38 MPa to enhance stability on rough terrain.

Working Principle
The hydraulic pump station delivers high-pressure hydraulic fluid to the cylinders. This fluid pressure acts upon the pistons inside, driving the multi-stage cylinder barrels to extend sequentially. This action lifts the dump truck's cargo bed to a specified angle for unloading. After unloading is complete, opening the hydraulic valve allows the fluid to return to the reservoir. The cargo bed then relies on its own weight or the force from auxiliary mechanisms to retract the cylinder barrels step by step, returning to its initial position. The entire process is precisely controlled via hydraulic valves to regulate lifting and retraction speeds, preventing impact.
Distinctive Performance Features
High Adaptability: Balances long stroke with compact dimensions, achieving over 3 meters of lifting travel within the limited installation space of dump trucks while occupying minimal space when retracted.
High Reliability: Components utilize high-strength materials with specialized processing. Features like buffer devices absorb end-of-stroke impacts, while exhaust systems can integrate emergency shut-off valves to reduce failures under heavy loads and rough conditions. Special surface treatments on piston rods enhance wear and corrosion resistance.
High Load Capacity: Operating at pressures typically ranging from 16 to 35 MPa, the system delivers substantial lifting force to meet unloading demands in heavy-duty applications such as mining dump trucks and large-scale construction dump trucks.
 

Q   What are the features of this hydraulic cylinder (from your company)?

The hydraulic lifting system is using technology imported from Finland's company. After being introduced into China and developed on the same platform as dump trucks, the product has stronger adaptability. The product has undergone 50000 load tests and is widely used in various working conditions. The system can meet the lifting requirements of lightweight and heavy-duty.

Uses: engineering, highway, harbor, wharf, mining area.

Features:
Using high-quality, -strength alloy steel pipes, the anti-expansibility is increased by 15% compared to similar cylinders;
Adopting "double channel" imported seals, high reliability;
Lengthening guide, bending resistance increased by 15%;
Static test+dynamic bench test, undergone 50000 load tests without any faults.



Q How should this hydraulic cylinder be selected?
Model: complete itinerary specifications, cover cargo box layouts ranging from 4 meters to 12 meters, including semi trailers.

For more details, please contact our sales team.

Detailed Photos

Product Parameters

TYPE
PART NO.	31288033101
SERIAL NO.	17 06 6E 027
MAX. PRESSURE	220 Bar

 

Certifications

 

Company Profile

Qingdao Yibolan Machinery & Equipment Co., Ltd was established in January 2022, is located in the beautiful coastal city of Qingdao, China. Our main products are various kinds of hydraulic machinery and equipment, such as

hydraulic cylinder


hydraulic oil tank


etc.


We are a high technology company which focusing on the development and production of the hydraulic system parts. Our products adopt high strength alloy materials and advanced surface treatment processes, with thousands of load tests and has extremely high-pressure resistance and long service life. Our hydraulic equipment can be adapted to various types of engineering machinery and widely applied in construction, highways, ports, docks, mining areas and more working condition. It can also meet both lightweight and heavy-duty lifting requirements.

Since our establishment, we have been focusing on the hydraulic industry for years, with the "finest quality and innovation " as the core concept, we are committed to providing high-performance hydraulic equipment such as hydraulic cylinders, hydraulic oil tanks, and hydraulic power units for global customers. Our company has become the leading hydraulic technology service provider and have successfully established long-term partnerships with customers in South Pacific, Africa, America, and Southeast Asia.

Our core value is to focus on customers' requirements, through providing accurate services and supports, to establish excellent business relationship and achieve sustainable development together.



 

Our Advantages

We have our own metal processing plant with a building area of 10000 square meters. Our team includes designers, engineers, production personnel, welders, mechanical operators, and quality inspectors, providing customized metal processing services for global customers throughout the entire process.

 

FAQ

1.Why should be partner with Qingdao YBL ?

•  Quality 

Deliver consistently superior performance and pursue every possible improvement.

•   Agility 

Identify emerging trends and act quickly to acquire new opportunities.

•  Customer Satisfaction

Anticipate customer needs and exceed their expectations.

 

2. what services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;

Accepted Payment Currency:USD,EUR,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A,Western Union;

Language Spoken:English,Chinese

 

3.How about the delivery time ?

depends the quantity, normally 1 month