How to choose high quality trailer parts?
How to choose high quality trailer parts?
First, check whether the trademark logo is complete. Genuine trailer accessories are packaged with high quality, clear writing on the packaging box, bright overprinting colors, and are also marked with product name, specification, model, quantity, registered trademark, factory name, factory address and phone number. Some important parts also come with instructions, certificates and inspector stamps.
Second, check that the geometry is normal. For example, a shaft part can be rolled around on a glass plate to see if it leaks light and determine whether it is bent. When purchasing the clutch driven disc steel sheet or friction sheet, pay attention to whether there is warping phenomenon, the oil seal should be round and fit with the plate glass without deflection.
Next, check whether the binding site is smooth. Accessories in the handling and storage process is easy to produce burrs, indentation, damage or cracks due to vibration or bump in the combined part, which will affect the use of. Therefore, pay special attention to inspection when purchasing.
Then, check the surface of the part for corrosion. The qualified parts have high surface precision and good finish, and the packaging of important parts is more stringent for rust prevention and corrosion prevention.
In addition, check whether the protective surface is in good condition. Most parts will have a protective layer when leaving the factory, such as piston pin, bearing shell with paraffin protection, piston ring, cylinder liner surface coated with anti-rust oil and wrapping paper, valve, piston, etc., will be soaked in anti-rust oil and wrapped in plastic bags.
Next, check whether the bonded parts are loose. An accessory composed of two or more parts, and no loosening is allowed between the parts.
At the same time, check whether the assembly parts are complete. The regular assembly parts must be complete and intact, so as to ensure smooth assembly and normal operation.
The choice of brake pads is equally important. Good brake pads have high friction coefficient, high critical temperature of thermal decay, at least between 200-280 ° C, will not damage the brake drum, and longer service life.
When selecting trailer axle, you can contact the manufacturer through acquaintance introduction, online search or field investigation. When investigating, we should look at the background of the manufacturer, understand its establishment time, development status, main business or products. Also check the manufacturer's qualification, including the enterprise's own qualification, production standards, product quality qualification, etc. The scale of production can be judged from the area of the factory, the number of workers, and the production equipment.
DARO Heavy Industry Group, founded in 2001, focuses on the R&D and manufacturing of trailer axle and accessories, integrating "R&D, design, production, sales and service". The main products include disc trailer axle, drum trailer axle, low flat trailer axle, three-line six-axis trailer axle, concave trailer axle, light trailer axle, and steering trailer axle and air suspension, electromagnetic braking, etc.
