The 4PG1212 four-roller crusher is a hydraulically adjusted four-roller crusher, mainly composed of a motor, reducer, fixed roller section, movable roller section, frame body section, machine cover section, hydraulic pump station and hydraulic adjustment section, cutting device, safety guard, and other parts. The roller diameter is 1200mm, the roller length is 1200mm, the feed particle size is ≤25mm, the discharge particle size is ≤3mm, and the production capacity is approximately 70t/h. It features a compact structure, long service life, large crushing ratio, high production capacity, and adjustable discharge particle size. It is widely used in the metallurgical industry for fine crushing of materials such as coke and anthracite coal.

Roller crushers are medium and fine crushers with a simple, compact, and lightweight structure. They can be divided into the 2PG series double-roller crusher and the 4PG series four-roller crusher. The double-roller crusher uses a pair of counter-rotating rollers, while the four-roller crusher utilizes two pairs of counter-rotating rollers for crushing. They are primarily used to crush materials such as limestone, marl shale, bricks, slag, clinker, feldspar, and coke.

The 4PG series four-roller crusher developed by Shandong Shankuang features a device for repairing worn rollers. The crushed product has a particularly uniform particle size, with minimal over-sizing or over-crushing. It is suitable for crushing brittle materials and materials of medium hardness or below, such as sintered ore, coal, coke, slag, shale, limestone, etc. It is especially suitable for pre-furnace raw coal crushing and pre-classification crushing in the metallurgical industry.

The product has been applied in major domestic steel groups such as Baowu Steel and Rizhao Steel, and exported to countries including Iran, India, and Russia.