In the daily use of trailer RVs, engineering trailers or agricultural equipment, the trailer jack may seem small, but it is an indispensable key component to ensure lifting and safe parking. As users pay more and more attention to ease of use and durability, more and more buyers are beginning to pay attention to the structural design and manufacturing process behind the product.
What is a trailer jack?
A trailer jack is a mechanical device that supports and raises the front end of a trailer manually or electrically. It is widely used in RVs, boat trailers, agricultural vehicles and small mobile equipment. Its main functions include:
Assisting in hooking up or detaching from the tractor
Maintaining the stability of the trailer when not connected to the vehicle
Adjusting the height level of the front of the trailer
Analysis of the core structure of the trailer jack
A high-quality trailer jack is inseparable from scientific structural design and durable materials. Taking the jack produced by Chenwei Machinery as an example, its key parts include:
✅ Screw system
Made of high-carbon steel, it has good pressure-bearing performance and long life. The screw determines the stability and load-bearing strength of lifting.
✅ Gear system
The gears of Chenwei jack are formed by powder metallurgy + heat treatment process, with high strength and low wear, suitable for high-frequency operating environment.
✅ Welding process
The introduction of automated welding equipment, uniform welding points and stable structure significantly improves the consistency of product appearance and overall load-bearing capacity.
✅ Surface treatment
Galvanizing, anti-rust spraying, electrophoretic coating and other anti-corrosion treatment methods are provided to ensure durability in outdoor, humid or salt spray environments.
