Suspension Cylinder Solutions for Enhanced Stability

Comprehensive Guide to Suspension Cylinders: Structure, Features, Applications, and Benefits

1. Structure

The suspension cylinder usually consists of the following parts:

Cylinder: Carries hydraulic oil and provides working space in the cylinder.

Piston and piston rod: The piston slides inside the cylinder and the piston rod connects the external mechanical part to transmit power.

Seal: Used to prevent hydraulic oil leakage and ensure the working efficiency of the cylinder.

Interface and accessories: Hydraulic oil inlet and outlet ports and mounting brackets.

2. Operating principle

The suspension cylinder pushes the piston to move through the high-pressure hydraulic oil supplied by the hydraulic pump, and the piston rod transmits the hydraulic pressure to the suspension system to achieve functions such as supporting the vehicle load, absorbing vibration, or adjusting the vehicle height.

3. Main Features

High strength: The suspension cylinder is made of high-strength steel and can withstand large loads from vehicles and machinery.
Excellent anti-seismic performance: It can effectively reduce the vibration generated when the vehicle is driving, improving comfort and stability.
Adjustment function: Some suspension cylinders are equipped with height adjustment function to adapt to different working conditions.

4. Application Scenarios

Commercial vehicles: such as heavy trucks and buses, used to improve ride comfort and reduce body vibration.
Agricultural machinery: such as tractor suspension systems, used to support and control the height of agricultural implements.
Construction machinery: such as bulldozers and excavators, to provide support and shock absorption functions under harsh working conditions.

5. Benefits

High reliability: Precision designed and manufactured, suitable for long term, high intensity operation.
Easy maintenance: Most suspension cylinders are designed for easy inspection and replacement of seals.
Wide adaptability: Length, diameter and interface can be customised to suit specific vehicle or machine requirements.

6. Advantages of EASTAI

EASTAI has been dedicated to the hydraulic industry for more than 20 years, providing high quality suspension cylinders and their core components, including precision bright tubes and chrome-plated piston rods. Our products have excellent durability and stability to meet the needs of various industries.

If you need more detailed technical support or customised solutions, please do not hesitate to contact us!

Comprehensive Inspection Steps to Ensure Hydraulic Cylinder Quality and Performance

After the hydraulic cylinder is manufactured, it must undergo rigorous testing to ensure that its quality and performance meet the design requirements. The following are the routine inspection steps after the hydraulic cylinder is manufactured:

1. Appearance inspection

Surface quality: Check that the surface of the cylinder body, piston rod and other parts are smooth, without scratches, pits, cracks or other defects.
Coating and anti-corrosion treatment: Ensure that the anti-corrosion coating is uniform, without peeling or blistering.
Welded parts: Observe that there are no cracks, pores, welding nodules or other problems in the welded parts.

2. Dimension and tolerance inspection

Geometry: Use gauges (such as calipers, micrometers) to check that key dimensions such as cylinder inner diameter, outer diameter, piston rod diameter meet the requirements of the design drawings.
Fit clearance: Measure the fit clearance between the piston and cylinder to ensure it is within a reasonable range.

3. Seal performance test

Static seal test: Check that the seal is correctly installed and that there is no oil leakage under pressureless conditions.
Dynamic sealing test: Run the cylinder under simulated working conditions to observe if the seal maintains a good seal during movement.

4. Pressure test

Pressure test: Apply a hydraulic pressure greater than the working pressure to check that the cylinder, welds and interfaces can withstand it without leakage or deformation.
Burst test (optional): In special applications, it may be necessary to test the maximum pressure capacity of the cylinder to the point of rupture to verify the safety margin.

5. Performance test

Stability test: Operate the cylinder to check that the piston rod extends and retracts smoothly without sticking or jerking.
Response sensitivity: Check that the cylinder responds as required at different pressures and flow rates.
Repeatable positioning accuracy: After several runs, confirm that the cylinder can maintain consistent positioning accuracy.

6. Oil inspection

Cleanliness check: Confirm that the hydraulic oil line and the inside of the cylinder are clean and free of contamination.
Hydraulic oil leakage: Whether there is any oil leakage during the test.

7. Accessory inspection

Connecting parts: Check that threads, flanges and interfaces meet requirements and are not loose or damaged.
Accessory integrity: Ensure that accessories such as buffers and limiters are in place and operating normally.

8. Label and Document Inspection

Labels and tags: Check that the information on product labels is clear and accurate, including model, specifications, production date, etc.
Quality documents: Ensure that test records, certificates of conformity and other documents are complete.

9. Operational test (simulated working conditions)

Operate the hydraulic cylinder in conditions close to the actual working conditions to confirm that its various performance indicators (such as stroke, load capacity, etc.) meet the design requirements.

10. Final packaging check

Protective measures: Ensure that key parts such as piston rods and interfaces are adequately protected to avoid damage during transport.
Packing Label: Confirm that the label on the packaging box matches the product information.

Rigorous inspection of the above steps will ensure that the performance and quality of the hydraulic cylinder will meet the user’s requirements and improve its reliability and safety in actual applications.