What are the key points for a good quality VMS trailer frame structure?
What important function of a VMS trailer frame acts in a whole set of Variable Message Signs in that it bears the total weight of the whole vehicle among 450Kg/600Kg/850Kg (Based on VMS Specification) from the bottom to the top, same as light tower products as well. With a good design, it can hold the whole vehicle standing on the ground steadily when fully lift-up and keep the balance but not easily fall down no matter how bad weather condition is. A well-designed structure is not super heavy or high cost, but the cost will increase to affect the whole vehicle cost with much-complicated design, or less stability if too simplified.
In the current market, most VMS trailer frameworks are made of tubes and bent steel plates, the total cost is different from the ways how the parts are made.
By manual ways, it is cheap but takes a long time & couldn’t avoid shortcomings of coarseness and inaccuracy anyway, the whole product easily becomes rough and middle-level quality. While when we use laser cutting machines for cutting tubes and steel plates, automatic machines for bending, and robot welders for welding, which can improve the accuracy and speed greatly. The goods could be finished faster and come to you earlier, and go to your clients earlier finally. On the surface, the price is relatively higher, actually saving time is saving money from the other side.
How do we judge a framework as a qualified one?
When you customize your trailer frame and do the final assembly at your place, if parts you can put on assembling line and fit them into places directly without any extra rework to do, such as parts are clean welded without burs, ground properly no sharp edge including U bars, the angles are not too high or low, holes are aligned to fit screws or rivets directly. It can help to control your cost by saving your time in this way.
What does a good quality VMS/light tower trailer frame mean to a manufacturer?
For sure a good quality VMS trailer frame plays an important role in the whole vehicle as a strong bottom. If the quality of the product could be consistent and last longer using life, a good reputation could bring more clients to the business.