The excavator seal repair kit is an important accessory combination for the repair and maintenance of the excavator. It contains a variety of seals, which can be used to repair the sealing problems of the hydraulic system, cylinder and other parts of the excavator. The following is a detailed introduction to the excavator seal repair package:
The composition of the repair package
O-ring: The most basic seal, generally made of nitrile rubber and other materials, is used for static or low-speed dynamic sealing, which can prevent hydraulic oil from leaking from the flange, end cover and other joint surfaces.
Piston sealing ring: Installed on the cylinder piston, the common types include U-ring, Y-ring, combined sealing ring (such as Gle ring, Ste seal), etc., which can prevent the hydraulic oil on both sides of the piston from leaking from each other, ensuring that the piston effectively drives the cylinder to expand and shrink, and is suitable for high-pressure and high-speed scenarios.
Piston rod sealing ring: installed in the sealing groove of the cylinder head, it is used to seal the gap between the piston rod and the cylinder head to prevent the hydraulic oil from leaking from the outstruding end of the piston rod.
Dustproof ring: usually installed on the outside of the piston rod sealing ring, which can prevent external dust, silt, moisture and other impurities from entering the inside of the cylinder, avoiding pollution of hydraulic oil and wear of the seal and cylinder inner wall.
Guide ring / support ring: made of wear-resistant materials, such as polytetrafluoroethylene, etc., which is used to support the piston rod, prevent its partial wear during movement, and can assist in sealing.
The function of the repair kit
Prevent hydraulic system leakage: The hydraulic system of the excavator relies on the seal to maintain the pressure. If the seal is damaged, it will lead to hydraulic oil leakage, reduce system efficiency, and even affect the normal operation of the excavator. The seal in the repair package can replace the damaged parts in time and restore the tightness of the system.
Extend the service life of the equipment: High-quality seals can effectively reduce hydraulic oil leakage and impurity entry, reduce the wear of parts, thus prolonging the service life of each part of the excavator and reducing equipment failure and maintenance costs.
Improve maintenance efficiency: The repair package contains a variety of specifications of seals, which is convenient for maintenance personnel to quickly find suitable accessories for replacement during maintenance. There is no need to spend a lot of time looking for a single seal, which improves maintenance efficiency and reduces equipment downtime.
Scope of application
There are many models of excavator seal repair kits to adapt to different brands and models of excavators, such as Caterpillar, Komatsu, Doosan, Hitachi, Shengang and other common brands. Different repair packages are suitable for different parts of the excavator, including cylinders, hydraulic pumps, main valves, walking motors, rotary joints, etc.
Key points of selection and purchase
Determine the model specifications: You need to choose the appropriate repair package according to the brand, model and specific parts that need to be repaired of the excavator, and ensure that the seals in the repair package are consistent with the size and specifications of the original parts.
Pay attention to seal materials: Common seal materials include nitrile rubber, polyurethane, fluororubber, etc. Different materials have different performance characteristics, such as nitrile rubber with good oil resistance, polyurethane wear resistance, high pressure resistance, fluororubber high temperature resistance, chemical corrosion resistance, etc. The appropriate material should be selected according to the working environment and working conditions of the excavator. The seal of.
Choose products with reliable quality: give priority to original accessories or well-known brand repair packages. These products have usually undergone strict quality inspection, and their performance and quality are guaranteed. For example, Caterpillar’s original seal repair kit is made of high-quality rubber and has excellent pressure resistance and deformation resistance.
Original source: Hydraulic seal https://www.bszzseal.com/
