Hydraulic cylinder yes Hydraulic system The stability of its quality directly affects the working effect of the entire hydraulic system.

Hydraulic cylinder manufacturer When manufacturing the hydraulic cylinder, the dimension inspection is a very important link to ensure that the cylinder meets the design requirements and matches with other accessories.

The following are general requirements for dimensional inspection of hydraulic cylinders.

1. Appearance inspection:

Check the smoothness of the cylinder surface and whether there are oxidation, rust, scratch, damage and other problems.

At the same time, check the bulge or depression caused by the oil cylinder strike or impact. These problems may lead to leakage or unstable operation of the cylinder.

2. Dimension measurement:

Use ruler, caliper, vernier caliper and other tools to accurately measure the length, diameter, hole diameter and thread size of the oil cylinder to ensure that it meets the design requirements and parameters.

In addition, it is also necessary to check the smoothness of the cylinder bore to ensure the quality of the surface.

3. Port check:

Check whether the size and position of the oil inlet and outlet of the oil cylinder are correct, and use the balance to determine its flatness and perpendicularity.

If the inlet and outlet do not meet the design requirements, it may lead to poor connection or leakage.

4. Action inspection:

The assembled oil cylinder needs action inspection,

That is, apply a certain pressure through the hydraulic system, observe whether the piston of the oil cylinder can move forward and backward smoothly, and check whether the stroke of the piston meets the design requirements.

If the oil cylinder is stuck, rubbed or not moving smoothly, it needs to be adjusted or repaired.

5. Temperature measurement:

During the dimensional inspection, it is also necessary to measure the temperature of the cylinder.

Since the hydraulic cylinder will generate heat during operation, it is necessary to ensure that the cylinder can dissipate heat normally to avoid the impact of excessive temperature on the system.

6. Surface coating inspection:

Check the surface coating of the hydraulic cylinder to ensure that the surface coating quality of the cylinder meets the requirements.

It is not only necessary to check the quality of the surface coating, but also to check whether the adhesion between the coating and the cylinder body is good, and whether there is peeling or falling off.

7. Other requirements:

In addition, it is also necessary to check the assembly accuracy of the oil cylinder, such as whether the fit clearance between the piston and the piston rod is appropriate, and whether the installation of seals is tight.

In addition, pay attention to the weight of the oil cylinder to ensure that it meets the design requirements.

Dimension inspection is a very important part in the manufacturing of hydraulic cylinders. Only by ensuring that the cylinder size meets the requirements, can it ensure its normal operation and long-term stable operation. Therefore, the manufacturer needs to operate in strict accordance with the above requirements when carrying out the dimensional inspection of the hydraulic cylinder, so as to improve the product quality and use safety. At the same time, pay attention to the cleanliness of the environment during the inspection to avoid the impact of dust or impurities on the oil cylinder.