Jaw Crusher

Description
Jaw crusher (jaw crushing machine) is composed of dynamic jaw and static jaw. It is widely used to crush various minerals and large materials into medium size in mining, construction materials, high way, and rail way, water conservancy and chemical engineering industries. And the maximum compressive strength of the crushed materials is 320 Mpa.

Advantages
1. Jaw crusher features high feeding capacity and production.
2. Jaw crushing machine has large reduction ratio and epigranular.
3. Jaw crushing equipment is equipped with gasket type discharging gate adjusting device. Thus, it features wide regulating range, reliability and flexibility.
4. Lubricating system is safe and reliable. The components and parts are easy to replace. Therefore, jaw crusher is characterized by small working capacity and convenient maintenance.
5. Jaw crushing machine has the characteristics of simple structure, reliable operation and low running cost.
6. Jaw crushing equipment is energy saving. Single machine can save energy by 15% to 30%.
7. The discharge gate has wide regulating range so that it can meet requirements of different clients.
8. Jaw crusher has the features of low noise and little dust.

Performance
1. Jaw crushing machine successfully solves certain problems like high running rate and no maintenance time.
2. Jaw crusher can break large pieces of limestone. Maximum crushing particle size is 1000 × 1200 m.
3. Two kinds of materials can be mixed uniformly and the desulphurization limestone adding quantity is greatly increased.
4. Jaw crusher features low power consumption. The consumption of one tonnage limestone reduces 1-2 Kw h/t. 100 thousand RMB can be saved.
5. Jaw crushing equipment features small scrap particle size (2 to 15 mm).

Components
1. Rack
Rack adopts rigid frame with up and down opening so as to support eccentric shaft and bear counter-acting force.
2. Jaw Plate and Side Protecting Plate
Fixed jaw and moving jaw are made of jaw bed and jaw plate. As the working part, jaw plate is fixed on the jaw bed by bolt and drift. With enough strength and rigidity, it can bear broken reaction force.
3. Transmission Gear
Eccentric shaft is the principal axis of jaw crusher. It is made of high-carbon steel.
4. Control Apparatus
Control apparatus has wedge block type, base plate type and hydraulic type. Usually, wedge block type is adopted. It is made up of front and back block. The front block can move backwards and forwards. The back block is kind of regulating block and can move up and down.
5. Flywheel
The flywheel is used to store idle stroke energy of moving jaw. Flywheel is usually made of cast iron or cast steel.
6. Lubrication Device
Eccentric shaft employs centralized circulation lubrication. The bearing surfaces of mandrel and thrust plate make use of lubricating grease to add oil manually.

Working Principle
Jaw crusher takes squeeze driven method as its working mode. Belt and belt wheel are driven by electromotor. Moving jaw moves up and down with the movement of eccentric shaft. When moving jaw moves up to wrist plate, the included angle becomes big so as to drive moving jaw plate close to fixed jaw plate and the materials are crushed or smashed. When the moving jaw moves downward, the angle becomes small. Under the action of trolley and spring, the moving jaw leaves the fixed jaw plate and the crushed or smashed materials are discharged from the bottom crushing cavity mouth. With continuous rotation of electromotor, the moving jaw of jaw crusher makes periodic motion to crush and discharge materials and realize batch production.

Parameters

Type	Feed Opening Size (mm)	Max. Feed Size (mm)	Discharge Range Opening (mm)	Processing Capacity (t/h)	Eccentric Shaft Speed (r/min)	Motor Power (Kw)	Weight (t)	Overall Size (Length × Width × Height)(mm)
PE-150 × 250	150 × 250	125	10 to 40	1-3	250	5.5	0.8	720 × 660 × 850
PE-200 × 300	200 × 300	180	15 to 50	2-6	260	7.5	1.2	910 × 750 × 990
PE-200 × 350	200 × 350	180	18-70	3-10	260	11	1.5	1000 × 870 × 990
PE-250 × 400	250 × 400	210	20-60	5-20	300	15	2.8	1300 × 1090 × 1270
PE-400 × 600	400 × 600	340	40-100	16-60	275	30	7	1730 × 1730 × 1630
PE-500 × 750	500 × 750	425	50-100	40-110	275	55	12	1980 × 2080 × 1870
PE-600 × 750	600 × 750	500	150-200	80-240	275	55	15.8	2070×2000×1920
PE-600 × 900	600 × 900	500	65-160	50-180	250	55	17	2190×2206×2300
PE-750 × 1060	750 × 1060	630	80-140	110-320	250	110	29	2660×2430×2800
PE-800 × 1060	800 × 1060	640	130-190	130-330	250	110	29.8	2710×2430×2800
PE-830 × 1060	830 × 1060	650	160-220	150-336	250	110	30.7	2740×2430×2800
PE-870 × 1060	870 × 1060	660	200-260	190-336	250	110	31.5	2810 × 2430 × 2800
PE-900 × 1060	900 × 1060	685	230-290	230-390	250	110	33	2870 × 2420 × 2940
PE-900 × 1200	900 × 1200	750	95-165	220-450	200	110	52	3380 × 2870 × 3330
PE-1000 × 1200	1000 × 1200	850	195-265	315-500	200	110	55	3480 × 2876 × 3330
PE-1200 × 1500	1200 × 1500	1020	150-350	400-800	180	160-220	100.9	4200 × 3300 × 3500
PE-1500 × 1800	1500 × 1800	1200	220-350	500-1000	180	280-355	122	5160 × 3660 × 4248
PE-1600 × 2100	1600 × 2100	1500	300-400	1300-2200	160	350-380	150.6	6210 × 4013 × 4716
PEX-150 × 750	150×750	120	18-48	8-25	320	15	3.8	1200 × 1530 × 1060
PEX-250 × 750	250×750	210	25-60	13-35	330	30	5.5	1380 × 1750 × 1540d
PEX-250 × 1000	250×1000	210	25-60	16-52	330	30	7	1560 × 1950 × 1390
PEX-250  1200	250×1200	210	25-60	20-61	330	37	9.7	2140 × 1660 × 1500
PEX-300 × 1300	300 × 1300	250	20-90	16-105	300	55	15.6	2720 × 1950 × 1600

Attention
1. Carry out commissioning test run only after the jaw crushing machine functions well.
2. The crushed materials should be added into crusher cavity. Lateral or full materials should be avoided so as to avoid lateral overload or bearing overload.
3. The normal bearing temperature should be below 30℃ and maximum temperature should be below 70℃. If the temperature exceeds the above temperature, jaw crushing equipment should come to a halt and check and solve the problem.
4. Before parking, users should stop feeding. And power off after the crushed materials are completely discharged.
5. When crushing, if the jaw crusher stops due to crusher material block. At his time, jaw crushing machine should be powered off. Clean the materials in the jaw cavity and then start up again.
6. If one end of jaw plate wears out, it can be turn around so as to makes use of it.

Choose and Buy
1. Choose jaw crushers according to actual requirements, many parameters can be referred, such as feed size and output size, etc. Larger feed size, coarser particle size. Larger feed size, bigger particle size.
2. The quality of jaw crusher scale board should be taken into consideration. Three factors should cause users’ attention: the quantity, abrasion performance of the scale board and power consumption of jaw crushing machine. Under general circumstances, maximum feed size, change of particle size, the distribution of feed size, abrasion resistance of material and the rigidity are considered.
3. The length of the scale board and the jaw crusher power consumption exist a directly proportional relationship. The longer the scale board is, the higher the power consumption is. As a general rule, soft materials choose long scale board and hard material choose short one. Fine materials choose short scale board and coarse materials choose long one.
4. Materials with more water content will affect the throughput capacity. Generally, the water content should below 5%. As for power use, standard jaw crusher can reach 80% use ratio. Short head type jaw crusher can reach 85%.
5. Generally speaking, the feed size that is smaller than discharge gate of close mouth cannot surpass 10%. Once exceeds, the power consumption will rise and the particle will become flake.
6. Feed uniformly without segregation, or it will cause productivity impairment, uneven particle size, over frequent spring movement and rising power consumption. In addition, de-iron device must be mounted on jaw crusher so as to avoid rupture and wreck of rotor.
7. Regular maintenance work is necessary.

Maintenance and Repair
1. Maintenance
1) Close jaw crusher periodically and check the wear pattern inside the machine, such as central feed pipe, conical cap, up and down runner scale board of impeller, circular fender and attrition rate of wear plate. Replace and repair seriously wear parts timely. Besides, the weight model and size, etc. should be in accordance with the former ones.
2) Check the driving belt regularly. Jaw crusher is driven by driving belt. Regulate the tightness of the belt so as to guarantee uniform load-carrying capacity. When jaw crushing machine is driven by two motors, bilateral triangle belt should be grouped and matched so as to ensure fit length of each group. Replace seriously wear driving belt immediately.
3) Lubricate mechanical parts. Jaw crushing equipment makes use of Mobil automotive special grease or3 lithium base grease. Proper amount of lubricating grease should be added every 400 working hours. When working 2000 hours, open spindle and cleanse the bearings. Generally, the bearings should be replaced after 7200 working hours. Besides correct operation, scheduled maintenance is necessary. Such maintenance includes daily maintenance check minor repairs, repair and overhaul.
2. Repair
1. Minor repair includes checking and repairing the adjusting device, regulating and replacing wear scale board and overhauling the drive part and lubrication system, etc. The period is one to three months.
2. Besides minor repair work, medium repair includes replacing thrust plate and scale board, check and repair bearing bush, etc. And the period is one to two years.
3. Besides all medium repair work, overhauling repair includes replacing or turning eccentric shaft and the mandrel of moving jaw, casting Babbitt metal and replace and repair all wear parts. Overhauling repair periodic is about five years.

Payment: T/T or L/C at sight
Mode of Transportation: By Motor in China, By Sea Abroad

Bristol Compressors (Shanghai) Co., Ltd. is a professional maker of jaw crushers (jaw crushing machine or jaw crushing equipment. Our featured product is efficient jaw crushing equipment. Such jaw crushing equipment we provide is characterized by high quality, large crushing ratio, uniform feed size, simple structure, reliable operation, convenient maintenance and economical operating cost, etc. For detailed information about jaw crusher (jaw crushing machine), please visit our website and contact us directly.