PL vertical impact crusher is developed by our company material and material, the material and the metal impact crusher, in 1991 through the national identification of new products crusher hammer, in 1992 was named national new products, and access to national patent (Patent No. 902 183 745). Widely used in water conservancy and hydropower, refractories, building, highway, railway and other sectors of artificial sand operations, especially for granite, basalt, gray, sandstone and other hard, special hard, corrosive materials for crusher equipment , has more advantages than other types of products. In terms of artificial sand, its crushing capacity far beyond other similar products, is the most ideal artificial sand equipment. PL vertical impact crusher is that it has a unique rotor design, wear-resistant materials technology, broken speed optimization and hydraulic design the perfect combination. Is a professional crushing technology and mechanical model of the perfect combination, are fully reflected in new technologies, new processes. The machine can achieve "stone at stone (PL)" and "stone blacksmith (PLST)" ingenious conversion. "Stone at stone" type for machining hard materials, sand production rate of about 40%; "stone blacksmith" type used in the processing of hard materials, sand production rate of 40% to 60%. Jaw crusher appeared in 1858. Although it is an ancient crushing equipment four roll crusher, but because of a simple structure, reliable, easy to manufacture crushers, easy maintenance, etc., it is still in metallurgy, mining, building materials, chemical industry and railways sectors gain widely used. In metal mining, which is used mostly for hard or medium hard ore crushing and broken. Jaw crusher is usually in accordance with the movable jaw plate (moving jaw) to classify motion characteristics, the industry's most widely There are two main types: 1, moving jaw to make a simple swing elbows plate means (called Jane tilting) of jaw crusher. 2, the movable jaw for complex single swing bracket means (so-called complex swing) of the jaw crusher. Hydraulic technology has been applied in crushing equipment, there has been a hydraulic jaw crusher. (1) - simple pendulum jaw crusher; (2) - compound pendulum jaw crusher; (3) - hydraulic jaw crusher. Double Roll Crushers | Lei Machinery (Online) | crusher provided by Zhengzhou Machinery Co., Ltd. Lei. Zhengzhou Lei Machinery Co., Ltd. (www.hnzljx.net) (www.hnzljx.net) is a leader in Zhengzhou, crushing grinding equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Lei machinery leadership with the staff warmly welcome all inquiries negotiations to create the better future Lei machinery.