It is often said that 3 tons, 5 tons, 8 tons, 20 tons and other specifications of obstacle removal vehicles actually refer to the level of bearing capacity of the chassis used by this type of obstacle removal vehicle. It has a certain relationship with the total mass of the towed vehicle in terms of capacity, but there is no inevitable connection. The larger the tonnage, the greater the operating capacity of the obstacle removal vehicle.

Obstacle removal vehicle refers to a special vehicle equipped with road rescue equipment. As the vehicle is running on the road, failures and accidents are inevitable, especially on high-grade highways, this phenomenon often occurs. The task of the obstacle removal vehicle is to timely pull the faulty vehicle or accident vehicle away from the site to ensure the smooth road. Therefore, road obstacle removal vehicle is also called road rescue vehicle. With the increase of high-grade road surface and vehicles in use, obstacle removal vehicles have also been developed.