Factory Supply Crane Hydraulic Cylinder Spring Cylinder Replacement of Toyota

Product Description

A crane hydraulic cylinder spring cylinder, also known as a spring-return hydraulic cylinder, is commonly used in crane applications. It incorporates a combination of hydraulic force and mechanical springs to control the crane components' movement and positioning.

bore diameter (D)	rod diameter (d)	stroke (S)	Installation distance (L)	working pressure	Interface dimensions (M)	weight
Φ63	Φ32	25	267	4MPa	G1/4	6.5kg

How a crane hydraulic cylinder spring cylinder works:

1. Hydraulic Force: The cylinder consists of a cylindrical barrel, a piston, and a rod. Hydraulic fluid is pumped into one side of the cylinder, creating pressure that pushes the piston and extends the rod. This hydraulic force is typically generated by a hydraulic pump connected to the crane's hydraulic system.

2. Mechanical Springs: Besides the hydraulic force, spring cylinders feature mechanical springs within the cylinder assembly. These springs provide counteracting power when the hydraulic pressure is released or reduced. When the hydraulic force is applied, the springs are compressed, storing potential energy.

3. Spring Return: When the hydraulic pressure is released or reduced, the mechanical springs expand, exerting a force in the opposite direction. This force helps retract the piston and the rod, returning them to their initial position. The spring return mechanism ensures that the cylinder retracts even if hydraulic pressure or power is lost.

4. Control and Positioning: The hydraulic system controls the flow of hydraulic fluid into and out of the cylinder, allowing precise control of the cylinder's extension and retraction. This enables the crane operator to position and control the movement of crane components, such as the boom or lifting mechanism, with accuracy and efficiency.

What are some other advantages of using crane hydraulic cylinder spring cylinders?

1. Safety and Reliability: Incorporating mechanical springs in the cylinder design enhances safety and reliability. In the event of a hydraulic system failure or power loss, the mechanical springs ensure controlled retraction and return of the cylinder, preventing uncontrolled movements or potential accidents. This fail-safe feature adds an extra layer of safety to crane operations.

2. Energy Efficiency: The spring return mechanism helps conserve energy in crane operations. The mechanical springs store potential energy once the hydraulic force is applied to extend the cylinder. When the hydraulic pressure is released or reduced, the stored energy in the springs assists in retracting the cylinder, reducing the reliance on the hydraulic system and conserving energy.

3. Cost Savings: The energy efficiency of crane hydraulic cylinder spring cylinders can save costs over time. By reducing the energy consumption of the hydraulic system, operating costs can be lowered, especially in long-duration or frequent crane operations. Additionally, the fail-safe nature of the spring return mechanism helps prevent costly damages in the event of hydraulic system failures.

4. Precise Control and Positioning: The hydraulic system provides precise control over the extension and retraction of the cylinder, allowing for accurate positioning of crane components. The operator can precisely control the speed and force applied by regulating the hydraulic fluid flow. This level of control enables efficient and accurate load handling, enhancing productivity and reducing the risk of accidents or damage.

5. Versatility and Adaptability: Crane hydraulic cylinder spring cylinders are available in various sizes, configurations, and load capacities, making them adaptable to different crane types and applications. They can be customized to meet specific requirements, such as different boom lengths or lifting capacities, allowing for versatile crane designs and optimized performance.

6. Reduced Maintenance: The spring return mechanism helps reduce the overall wear and tear on the hydraulic system. By utilizing the mechanical springs for cylinder retraction, the hydraulic components experience less stress and fatigue, resulting in reduced maintenance needs and longer service life of the hydraulic system.

We have a first-class independent R&D platform for assembly. The forklift cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one fully automatic tilting cylinder assembly line, with a designed annual production capacity of 1 million pieces; the special cylinder workshop is equipped with semi-automatic cleaning and assembly systems of various specifications, with a designed annual production capacity of 200,000 essays. It has famous CNC machining equipment, machining centers, special equipment for high-precision cylinder processing, robot welding machines, automatic cleaning machines, automatic cylinder assembly machines, and automatic paint production lines. We have more than 300 sets of critical equipment running. The optimized allocation and efficient utilization of equipment resources ensure the precision requirements of the products and meet the high standard quality requirements of the products.

Painting & coating

Painting & coating line

Fully automatic water-based

Testing

To further improve product performance, and establish the leadership position of our hydraulic cylinder in the industry, our company and zjimee jointly established a Comprehensive performance laboratory of hydraulic cylinders, hydraulic valves, and hydraulic pumps; the lab is computer-assisted testing, using electro-hydraulic control technology, the test conditions preset by computer, which improves the test accuracy and system versatility, and the experimental data.
The automatic collection is realized through the application of sensors, and the output data, such as the internal leakage and load efficiency of the cylinder or the valve, are directly processed by the computer and converted to standard units (ml/min; %). At the same time, to ensure the working safety of the hydraulic system, the state monitoring function is carried out for key performance parameters, such as "oil temperature monitoring, liquid level monitoring, filter device monitoring," etc. Among them, the hydraulic cylinder test stand can test the performance of "load efficiency" and "internal leakage" by readings. At the same time, it is equipped with a grating ruler measuring instrument, which meets the requirements of all test items of hydraulic cylinder products in the national standard.