Jaw Crusher

Jaw crusher is one of the most widely used crushing equipment in mining industry. It features simple structure, easy maintenance, stable performance, even final particles and high crushing ratio.

Jaw crusher has been widely applied in mining, metallurgical, construction, road and railway building, water conservancy and chemistry etc. It is mainly applied in the primary crushing in which the compressive strength of original material is under 320Mpa.
    Based on years’ experience and technology development, SBM jaw crusher series are of 14 different models, which can meet most crushing requirements in primary and secondary crushing. Flexibility discharge opening setting of jaw crusher allows higher degree match with relative equipment. SBM jaw crusher is easy to install, debug and maintenance, the continuous improvement and refinement has made it the preferred jaw crusher among professionals and customers. Every feature of SBM jaw crusher has been carefully designed to provide superior quality and performance. It is widely used in fields of mining, metallurgical, construction, smelting, hydraulic and chemical industries, etc.

1. Simple structure and easy maintenance.
    2. Stable performance and low operating cost.
    3. High crushing ratio.
    4. Use high manganese steel, one-off foundry.
    5. High resistance to friction, abrasion and compression with longer operating life span.

Firstly, raw material is crushed by jaw crusher to the size required, and then the crushed materials are elevated into a hopper from which the material is transported through the electro-magnetic vibrating feeder evenly and continuously into the grinding chamber for powder-processing. The rollers of raymond mill oscillate outward to press the ring because of the centrifugal force and the shovel scoops up the materials, send to the middle between ring and roller to accomplish the grind. After this, the ground stuff is carried by the air from the blower into the separator for screening. The fine powers are blow into the cyclone collector and are poured out through the output-powder valve as the final products and the rough stuff after the screening will be recycled back into the grinding chamber for regrinding. The airflow system is closely sealed up and circulated under condition of negative and positive pressure.

Model	Max. Feed Size(mm)	Adjustable Range of Discharging Opening(mm)	Capacity(t/h)	Motor Power(kW)	Feed Opening(mm)	Weight(t)
PE-500×750	425	50-100	45-80	55	500×750	10.1
PE-600×900	500	65-160	70-120	55-75	6000×900	15.5
PE-750×1060	630	80-140	130-260	110	750×1060	28
PE-900×1200	750	95-165	220-380	110-132	900×1200	54.5
PE-1000×1200	850	195-265	230-380	132	1000×1200	57
PE-1200×1500	1020	150-300	400-800	160-220	1200×1500	100.9
PEX-300×1300	250	25-105	20-90	55-75	300×1300	11

Note: This specification is just reference, any changes are subject to the jaw crusher products.

1. The jaw crusher should be greased and oiled regularly; this should be done prior to each use. To do this, simply turn all grease caps one full turn (clockwise) and put a few squirts of oil in both of the oil cups. If grease caps are tight, add more grease (see MAINTENENCE below).
    2. Check jaws for cleanliness and clean them if needed. Loosen the wing nuts and remove the front shield, then loosen the hopper wing nuts (located below the hopper on the left and right of the machine) and move it up and back so that the jaw cam lock is exposed. Lift the cam lock up to release the stationary jaw so that it may be lifted straight out. If it is jammed, the cam lock may be freed by tapping lightly with a mallet or ball-peen hammer. Once the stationary jaw has been removed, the movable jaw will be exposed inside the machine. Brush both jaws with a large bristle brush. If any residual sample material adheres to the jaws, it may be removed by brushing with a large stainless steel bristle brush. After brushing, blow the jaws off with compressed air. The hopper and sample collection trays should not be brushed, but should be blown off with compressed air. Reassemble the jaws and put the sample hopper back in place, hand-tightening the wing-nuts and replace the front shield.
    3. Adjustment of jaw spacing: Turn the circuit breaker (located in the breaker box) to the "ON" position. While the crusher is empty, start the machine and allow it to come up to full speed. The machine must be adjusted while running. Loosen the square-head bolt (left). This will allow the hand knob (or right) to turn. Slowly turn the hand-knob clockwise until the jaws of the crusher can be heard just touching each other, and then back off the hand knob (turn counter-clockwise) just slightly. Slowly begin to re-tighten the square-head locking bolt. As this is done, the clearance of the jaws will decrease and may become too close. If this happens back the hand knob off slightly. Repeat this process until the bolt can be tightened completely without significant tapping of the jaws. It may take some practice to do this properly. This procedure will set the machine to grind as fine as possible (approximately 3 to 5 mm particle size) without damage to the jaws. If larger particles are acceptable, jaw clearance may be set to more than the minimum distance.
    4. Once the jaws have been set, place a clean sample collection tray under the machine to collect the crushed sample. If concerned about contamination of sample material by skin oils and/or perspiration, wear clean, powder free latex (or equivalent) gloves while handling the samples. When sample volumes permit, it is recommended that the machine be "pre-contaminated". This is done by processing a small amount of the sample to be crushed (thus coating the inner workings of the machine) and discarding the resultant product. This reduces the amount of sample contamination from the machine.The lower opening of the hopper is 2 3/8" x 4". This limits the size of material that may be crushed. If a sample is to big to fit easily through the opening, then it is too big for the machine to process and must be reduced by other means to an acceptable size. Once a sample passes through the lower hopper opening, it will be quickly crushed and the product will be forced out through the bottom of the machine into the sample collection tray.
    5.Overheating: If for some reason the machine jams or stops running in the middle of processing, turn the circuit breaker for the machine "OFF" before doing any inspection. Once the circuit breaker is off, the thermal relay and motor relay will need to be reset. Press the red stop button for the machine and reset the relay for the motor (it is located on the motor). Wait a few minutes for the motor to cool. Before turning the breaker switch "ON" and restarting the machine, make sure the cause of the stoppage has been alleviated. NEVER work on the machine while the breaker switch is in the "ON" position.
    6. When the crushing process is complete, remove the sample collection tray and transfer its contents to a clean container.
    7. Prior to next use, clean the crusher and collection tray(s) as described previously. When done for the day, make sure the lab is cleaner than it was when you started, that the breaker to the crusher is turned off, lights are out, and door closed and locked.

• E-mail : sbm@sbmchina.com
• Address : No.416 Jianye Road,South Jinqiao Area,Pudong New Area, Shanghai, China
• Tel : 0086-21-58383058 0086-21-58383022
• Fax : 0086-21-58383058
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