PFW Hydraulic impact crusher features heavy duty rotor design, unique hammer locking system, interchangeable wearing parts, and easy maintenance. This Hydraulic impact crushers provide customers low capital cost solution, outstanding performance, good cubical shape, lowest operation cost per ton, and wide materials application. Features of PFW Hydraulic impact crusher 1.Hydraulic system. 2.Three-curtain cavity design. 3.Heavy duty rotor design. 4.Unique hammer locking device. Working Principle of PFW Hydraulic impact crusher