There are some differences in the specifications of the pair of stone crusher machine design under different models, such as the specifications of the pair of rollers, the size of the input and output materials, and the capacity per unit of time. Make a reasonable purchase and never choose blindly. 1. Look at the feed granularity: Due to the different requirements for the material feed granularity of the roller crusher under different models, it is recommended that users select the model of the roller crusher according to the particle size of the material to be broken; 2. Look at the production capacity: the unit production capacity corresponding to the roll crusher under different models is different. The larger the model, the greater the capacity. It is recommended that everyone choose the roll crusher model according to the actual production of the company. Reasonable purchase is required, but please keep in mind that the size of the roll Crusher Machine should be large or small, because in the process of material crushing, there are too many unknown problems. It is safe to choose a larger roll crusher. Act of; 3. Look at the price of the equipment: In general, there will be many types of roller crushers that can meet the user's feed particle size, output and other requirements, so when the feed particle size and capacity requirements can meet the daily production needs of the enterprise It is recommended that users carefully compare the price of the roller crusher under each model and choose a model of roller crusher with high cost performance.