In view of the complex classification, many types of bulk loaders, loader for users, in order to obtain a higher income, reduce the investment risk, in the purchase of a product can not only consider the price factor, and from the aspects of balance, according to different purposes and the spirit of "good enough," and "maximum comprehensive income" the principle to choose. Generally speaking, the choice of loader is mainly based on the operating conditions, the amount of work, the operator's intensity and so on, hoping to provide reference for the majority of users to understand and buy loader products.