Construction Machinery
China has a vast territory and abundant natural resources. The development of economy and the prosperity of the market have provided a rare historical development opportunity for the construction machinery industry. China's construction machinery market is a huge business opportunity. As a professional seal company, we have provided customers with comprehensive sealing solutions and thoughtful and fast after-sales service for many years, which has well met the needs of high-quality customers for high quality sealing products, and has also won wide recognition and respect from the market.
Hydraulic crane
Requirements for oil cylinder
-The telescopic cylinder runs smoothly and reliably without abnormal noise.
-The luffing cylinder operates smoothly without shaking and extravasation.
-The outrigger cylinder is reliably sealed without retraction and sinking.
Use characteristics
-High pressure: maximum working pressure up to 32MPa
-Long stroke: multi-stage cylinder, up to more than 10 meters
-Large load: heavy load, large radial pressure
-Wide temperature range: from -45°C to +110°C
-Long life: The average trouble-free time is more than 2,000 hours.
Excavator
The working conditions of the excavator cylinder are very bad, mainly as follows: the working pressure of the hydraulic system is large; the impact pressure is relatively high; the lateral load is large; the working temperature and the motion frequency are relatively high. Therefore, the sealing performance of the excavator cylinder will have a direct impact on the quality of the entire machinery.
Shield Machine
The working conditions of the excavator cylinder are very bad, mainly as follows: the working pressure of the hydraulic system is large; the impact pressure is relatively high; the lateral load is large; the working temperature and the motion frequency are relatively high. Therefore, the sealing performance of the excavator cylinder will have a direct impact on the quality of the entire machinery.
Main Drive Bearing Seal
In the construction process of shield machine, the main bearing plays an important role, which is related to the safe and stable operation of the whole equipment. In order to ensure the normal operation of the main bearing of the shield machine, sealing technology and protective measures are essential. Through appropriate sealing technology, it can effectively prevent external dust, moisture, particles and other impurities from entering the main bearing and prolong the service life of the main bearing.
The main bearing seal is required to withstand 5bar continuous pressure and 6bar intermittent pressure. As a static seal, it can withstand 10bar pressure. The maximum shaft speed applicable is 2 m/s. We can provide both full ring and on-site welding services, so there is no size limit on the diameter of the seal.
Main Drive Bearing Seal
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