Characteristics 1. Specially designed for coarse and fine crushing 2. Maximum input size is up to 300mm and discharge size could be from 3-50mm 3. No sticking and no plugging 4. Low energy consumption 5. Easy maintenance and adjustment 6. Uniform discharge particle size without overcrushing Application 4PG four roll crusher is specially designed for coarse and fine crushing, it is applicable to medium hard brittle rock less than 150MPa such as bituminous coal, anthracite, lignite, coke, gangue, furnace slag, limestone etc.. Features: 1. High efficiency A four roll crusher for both coarse and fine crushing with high crushing ratio. The maximum input size is up to 300mm and discharge size could be from 3-50mm. It has the features of simple technology, low failure rate and construction cost saving. 2. High strength of toothed plate The toothed plate is made of complex alloy with wear resistant material casting technology and features high strength and long service life. 3. No sticking and no plugging Special transmission mode makes the two tooth rollers scrape each other to realize self cleaning. There is no requirement for water content and heating equipment. 4. Low energy consumption The 4PG four roll crusher features low energy consumption, high efficiency, easy maintenance and low running cost. 5. Environment protection Little dust emission and vibration; noise level is only 50db; all connections adopts labyrinth seal to avoid dust emission. 6. Safety and reliability The main parts, electrical motors, bearings and toothed plate are provided by well-known enterprises to ensure quality. Electric protective device and interlocking apparatus are equipped to ensure the safety and smooth running of electrical motor, crusher and the whole conveying system. When unbroken materials such as iron and wood block enter the crusher, the rollers will yield automatically to protect the machine from any damage. 7. Easy maintenance and adjustment The maximum feed size of 4PG four roll crusher is up to 300mm and the discharge size is adjustable from 3 to 50mm. 8. Uniform discharge particle size Uniform discharge particle size without overcrushing