Wheel loader and crawler loader have their own characteristics. Although the crawler front loader has greater traction and shoveling power, and has better off-road and hill climbing performance, it is low in speed and inflexible. Sometimes a trailer is required to transfer it, and the cost is high. Therefore, crawler loader is rarely used in open-pit mines. The most commonly used in mines in the world is wheel loaders. Therefore, its production volume is large and the production technology is also developing rapidly. The largest model has a bucket capacity of 40m3.