Doublegeared Roller Crusher Stationary Crushers. Doublegeared Roller Crusher Stationary Crushers.2.3 Main Performance Features of Double-geared Roller Crusher. 2.3.1 The crushing gears are cast with high wear-resistant alloy the advanced casting and heat treatment technology realizes the perfect combination of high strength, high toughness and high wear resistance its service life is 2-3.2DSKP Series grading crusher is our self-developed crushing equipment that is widely Used in the industry of coal, coke, metallurgy, chemicals, building and other Industries. with Low speed, high torque, high stability and super crushing force. with High strength, wear-resistant, minimum over crushing rate.