1. Working principle of stone impact crusher: This series of impact crusher is a new product designed by our company after absorbing the advanced technology.This kind of crusher can crusher many kinds of materials with max feed size less than 500mm and crushing strength less than 350mpa.It has the features of high ratio of crushing, reliable working, easy maintenance, etc.The final products are with cubic shapes and are ideal equipments for the highway, water and electricity construction.In addition, impact crushers are more suitable to process tranite, limestone, river gravel etc.In the area of highway construction, water cnservancy project and architecture. 2. Types of impact crusher We have various of impact crusher, such as pf0807, pf1007, pf1010, pf1210, pf1214, pf1315, pf1320 etc. In order to give you a responsible quotation, you can inform us the following information: 1). What's the material you are going to deal with? 2). What's the granularity of the material? 3). What's the granularity of the final products are you going to achive? 4). What's the producing capacity you are going to achieve? Our engineers will suggest you the most suitable one for you according to your information. Overall dim L*w*h(mm) 2210*1490*2670