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Jaw crusher of different types, works, working principle

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Jaw crusher of different types, works, working principle

July 10, 2023 nflg 0 Comments

jaw crusher works

Jaw Crusher is one of the most common crushing equipment . It is usually used in the field of mining , metallurgy, road & railway construction, water conservancy, chemical industry and so on. The jaw crusher of medium and large size designed and manufactured by our company have reached the advanced level with the features of high crushing ratio, high capacity, uniformed product size, simple structure, reliable operation, easy maintenance and low operation cost.

As a leading manufacturer of complete set of crushing and screening equipment in China, NFLG have produced PE Series Jaw Crusher which is one kind of efficient and energy-saving crushing equipment after many years of research and is integrated with successful experience of the same product at home and aboard. Wherein, large and medium-sized jaw crushers are our competitive products; especially in designing and producing large-sized jaw crusher, we have already ranked the first place at home and aboard.

PE Series Jaw Crusher, including primary crusher and secondary crusher, is mainly used for crushing various ores and bulk materials with compressive strength not more than 320Mpa into medium-sized grains. The series products have complete specifications and the feeding size ranging from 125mm to 750mm, which are the first choice for primary crushing. Jaw crusher is widely applied in mine, metallurgy, construction, road, railway, water conservancy, chemical industry, refractory material and ceramic etc.

Jaw Crusher PerformanceAnd Features

1. Crushing cavity is deep and there is no dead area, which improves feeding capacity and output;
2. High reduction ratio and uniform final product size;
3. Spacing piece type discharge-hole adjustment device is reliable and convenient;
4. Reliable and safe lubrication system, convenient replacement of parts and small work load of maintenance;
5. Simple structure, operational reliability and low operation cost;
6. Energy-saving : single machine can save energy by 15% to 30%; the system can save energy by over 30% to 60%;
7. Large adjustment range of discharge hole can meet the demands of different users;
8. Simple structure, convenient maintenance and use; stable performance, low operation cost; high reduction ratio.

Jaw Crusher Composition Structure:

1) Jaw Liner Holding Plate: This plate holds jaw liner in position. Disc springs are used for clamping this plate to take care of expansion of jaw plates.

2) Cheek Plates: These cheek plates are made out of abrasion resistant materials. They are fixed to the sides of the main body to protect it from wear.

3) Main Body: The main body is a heavy, one piece frame fabricated of rolled steel plates. The structure is properly ribbed and welded after proper edge preparation. The entire body is stress relieved before machining.

4) Jaw Liners: The stationary and swing jaws are fixed with jaw liners made of manganese steel casting with corrugated surface for better crushing. They are rigidly held in position by wedge action for easy replacement. These liners are made symmetrical in vertical direction for using them after reversing.

5) Toggle Seat: The toggle seats, made of forged alloy steel are replaceable and need no lubrication.

6) FlyWheels: Fly wheels are made of cast steel with heavy outer ring for smooth crushing action. They are mounted on either side of eccentric shaft with taper lock bushes for easy assembly and disassembly. They are provided with built in balance weights to help counteract the swing jaw weight.

7) Bearings: Large self aligned double row spherical roller bearings are provided for swing jaw and main bearing housing. Easy lubricating points are provided for all the bearings. Bearings are protected from dust by grease purged labyrinth dust seals.

Eccentric Shaft: The shaft is made from forged alloy steel with large diameters to suit heavy duty applications. Screw threads and sharp radii are eliminated to protect it from stress Concentration.

9) Swing Jaw: This jaw is fabricated in one piece of rolled steel plates. Stress relieved before machining and is suspended from the eccentric shaft.

10)Toggle Block: It is moved by a screw or a hydraulic cylinder for achieving the desired CSS. Shims are inserted in the gap developed due to movement of toggle block.

11)Toggle: Simple toggle plate arrangement, which can be easily renewed. Dry rolling type toggle, requires no lubrication.

Jaw CrusherWorking Principle:

PE/PEX series jaw crusher adopts the electric motor as the power. The eccentric shaft is revolved by an electric motor through v-belts, which causes the swing jaw moving in 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 will be discharged from the lower part of machine that is what you want.

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