This article mainly introduces:

S.Africa hydraulic cylinder,tension cylinder manufacturer,tension cylinder

(S.Africa tension cylinder,produced by Hengyu Group）

tension cylinder are widely used in S.Africa，because of simple structure and reliable operation，excellent temperature resistance，no transmission clearance.So our company has designed tension cylinder for customers from S.Africa.

Introduction to tension cylinder:

The pressure, temperature, medium and speed of different types of seals are not the same, water-ethylene glycol medium (HFC) can not be sealed with polyurethane, it can only use rubber seal; When the tension cylinder is running fast, it must be sealed with slip ring, such as Sterseal, Glairing, GD1000K, TDI, etc., when the running speed is slow, Yx, U, V combination seals can be used; Fluorine rubber seal is used in high temperature and high pressure environment; When the running speed is fast, the buffer sleeve and buffer valve must be considered.

When the tension cylinder wear is serious, you can try to use an alloy scraper to shave grooves with a depth of more than 1mm on the surface of the slip injury, then clean the grooves with acetone, apply the adjusted TS311 anti-wear repair agent on the polished surface with the tension cylinder inner diameter copying plate, and scrape it flat vigorously to ensure compaction and higher than the inner surface of the tension cylinder. After curing, polish to leave a finishing margin. Finally, the overall size, shape tolerance and roughness of the tension cylinder can meet the requirements by grinding. However, the life and reliability of this repair tension cylinder are not high.

How to repair the tension cylinder body when it is damaged: When the tension cylinder has trace deformation and shallow tensile marks, the tension cylinder is repaired by strong honing process. The heavy honing process can repair tension cylinders up to 2.5 times out of tolerance than the original tolerance. It honed the parts with excessive size or shape error through a powerful honing machine, so that the overall size, shape tolerance and roughness of the tension cylinder can meet the technical requirements.

tension cylinder and hydraulic station selection: Select the type and structure of the tension cylinder according to the operation requirements of the main engine. According to the external load force borne by the tension cylinder, such as gravity, friction force of the external mechanism, inertia force and working load, determine the load change law of the tension cylinder in each stage of the stroke and the power value that must be provided. Determine the diameter of the piston and piston rod according to the working load of the tension cylinder and the selected oil working pressure. the flow rate of the hydraulic pump is determined according to the movement speed of the tension cylinder, the diameter of the piston and the piston rod.

Answers to some questions about tension cylinder:

What kind of seal ring we should choose for 120Mpa hydraulic cylinder?
The sealing rings used in mining machinery are high pressure, which can reach 150MPa. It is generally composed of three parts, the guide ring, the sealing body and the elastomer. It's not a special structure. It's more mature. Usually said mountain circle, bud circle.

What is the smallest cylinder size?
The smallest shape cylinder I have ever seen is a hydraulic clamping cylinder in the machine tool industry. Outer diameter 24 mm, total length 23 mm, travel 4 mm. Weighs 0.05 kg. Maximum clamping force 3500 Newtons.