subject: Competition Between Domestic And Foreign Makers [print this page] The jaw crusher is one of the most popular stone-crushing equipments in the world; Jaw Crusher is ideally suitable for primary and secondary crushing. The highest anti-pressure strength of crushed material is 320MPA. Our design and production are of high position both at home and abroad.
At present, the jaw crusher has two most widely used structures: simple pendulum and compound pendulum. In the past, large mines always used the simple pendulum jaw crusher. But now, most of mines used the compound pendulum jaw crusher as the fist coarse crushing equipment. Both of them were belong to down moving type, the upper moving type has been eliminated for unreasonable structure.
This crusher adopts the electric motor as the power. The eccentric shaft is revolved by an electric motor through v-belts. It causes the swing jaw following the preconcerted path to crush the feeding material. Thus the material will be crushed in the crushing chamber which is composed of the stationary jaw plate, swing jaw plate and the liner plate. The material is discharged from the lower part of machine that is what you want.
Please carefully examine the fasteners, especially lubrication components and bolts, before the machine is started. Enough oil must be needed on each lubrication component. Fasten the loose bolts, clear the crushing cavity, and then start the machine. During the normal operation, even material feeding is important. Insufficient load or over load is not allowed. Moving jaw plate, fixed jaw plate, side guard plate and roof plate are wearing parts, and much attention should be paid to them.
Compared with simple pendulum jaw crusher, the compound pendulum jaw crusher has only one spindle. The gravity and crushing force are both concentrated on this spindle. So in a long time, the compound pendulum jaw crusher was made medium and small type. The main bearings also use rolling type. However, with the emergence of high-strength materials and large roller bearings, the compound pendulum jaw crusher is heading for the direction of larger-scale. The United States, Japan, Sweden and other countries had produced large-scale compound pendulum jaw crusher with the feeding size 1000-1500mm. China also produced 900mm1200mm large-scale compound pendulum jaw crusher. Recently, Henan Hongxing Mining Machinery Co., LTD has launched 600mm2200mm compound pendulum jaw crusher.
The crusher manufacturers at home and abroad had launched 1500 mm2100 mm1600 mm2200 mm large compound pendulum jaw crusher. This jaw crusher has high capacity, lower power consumption, large crushing ratio and uniform size distribution, and has gradually replaced the simple pendulum jaw crusher. Many foreign famous manufacturers such as Mesto Minerals, the former A-C, Kobe Japan, Krupp Germany, Ceda U.S. had not produced the PJ simple pendulum jaw crusher.
