Product Introduction
The jaw crusher is briefly called jaw breaker, also known as jaw stone crusher or jaw rock crusher. It is an early crushing equipment used for crushing various ores and large pieces of materials with a compressive strength of 147-245MPa. Due to its simple structure, high intelligence level, reliable operation, easy maintenance and repair, and relatively low production and construction costs, it is still widely used in industries such as metallurgy, chemicals, building materials, and transportation.
Working principle of PE E-type crusher
The key moving components of the PE jaw crusher are: motor, pulley, eccentric shaft, moving jaw, fixed jaw, and elbow plate. The power transmission and action execution are carried out in the following order:
Power start: The motor is powered on and runs, transmitting power to the pulley through a V-belt.
Eccentric drive: The pulley drives the main shaft to rotate, and the eccentric design of the eccentric shaft is the core. Its axis is offset from the center of rotation, and periodic centrifugal force is generated during rotation.
Dynamic swing: The centrifugal force of the eccentric shaft drives the dynamic swing to perform reciprocating composite swing.
Crushing and discharging:
When the moving jaw approaches the fixed jaw, the material between the two jaw plates is squeezed, split, or bent until it reaches the crushing strength and fractures;
When the moving jaw moves away from the fixed jaw, the gap between the two jaw plates increases, and the material that has been crushed to a size smaller than the "discharge port size" is discharged from the discharge port at the lower part of the equipment under the action of gravity;
Continuous reciprocating motion of the moving blade achieves a continuous cycle of "feeding → crushing → discharging" to complete batch crushing operations.
Equipment Structure of PE Jaw Crusher
The jaw crusher is mainly composed of the frame, eccentric shaft, large pulley, flywheel, moving jaw, side guard plate, toggle plate, toggle plate rear seat, gap adjusting screw, reset spring, fixed jaw plate, movable jaw plate, motor, etc.
Among them, the toggle plate is a precisely calculated welded part. It is not only a transmission component but also a safety part of the crusher. When materials that cannot be crushed fall into the crusher and cause the machine to exceed the normal load, the toggle plate will break immediately, and the crusher will stop operating, thus avoiding damage to the entire machine.
Performance Characteristics of PE Jaw Crusher
Large crushing ratio
It can process large pieces of materials into medium-sized particles in one step. The crushing ratio can reach 3-6 or even larger, effectively improving production efficiency.
Uniform product particle size
Through the reasonable design of the crushing chamber and the control of the moving jaw's movement trajectory, the particle size distribution of the crushed products is relatively uniform, reducing the flaky components in the products and improving product quality.
Simple structure and easy maintenance
Through continuous improvement and optimization, the structure has been simplified, with fewer main components. It is easy to disassemble and install, and maintenance personnel can conveniently inspect, repair, and replace each component, greatly shortening the downtime for maintenance.
Stable operation and high reliability
The moving jaw assembly is made of high-quality cast steel parts, and the heavy-duty eccentric shaft is processed from forged blanks. At the same time, larger and more durable eccentric shaft bearings are selected, giving it higher load-bearing capacity and enabling it to maintain a stable and reliable working state during long-term operation.
Large feeding capacity and high output
The crushing chamber has a large depth and no dead zone, which can accommodate more materials, improving the feeding capacity and thus increasing the production output.
Significant energy-saving effect
The energy saving of a single machine can reach 15%-30%, and the energy saving of the system is more than double, reducing the energy consumption in the production process and saving production costs.
Wide adjustment range of the discharge opening
A gasket-type discharge opening adjustment device is adopted, and the adjustment process is reliable and convenient. The adjustment range is wide, meeting the requirements of different users for product particle size.
Low noise and less dust
During operation, it produces low noise. At the same time, through reasonable design and sealing measures, the dust emission is reduced, and the working environment is improved.
Daily maintenance:
Whether it is long-term operation or intermittent use, the daily maintenance of the equipment must keep up, otherwise it is easy to malfunction. Daily inspections should focus on these points:
1. First, check each part that needs lubrication to see if there is a lack of oil and replenish it in a timely manner;
2. Check if the bolts are loose and tighten them in a timely manner;
3. The gap between the E-plate and the lining plate needs to be noted. If the wear is severe and the gap becomes larger, the crushing effect will be compromised;
4. Attention should also be paid to the tension of the belt. If it is too loose, it is easy to slip, and if it is too tight, it will accelerate aging;
Please note that before each startup, it is necessary to manually rotate the key components to ensure that there is no jamming. If there is no problem, it can be avoided from being damaged by impact during startup.
Vulnerable parts:
Ebon is the core, and its lifespan is closely related to the crushed material. If granite, a hard rock, is crushed, ordinary high-strength steel Ebon strips can last for 2-3 months. If high-quality alloy materials are chosen, the lifespan can be extended by 3-4 months. But if it is broken soft rock or weathered material, the lifespan of E-board is longer, usually 4-6 months. If the working conditions are stable, the usage time is also longer. However, the uniformity of feeding can also affect the service life of the jaw plate. If the feeding is too much or too little, the jaw plate may not be evenly distributed, which can easily lead to rapid local wear and shorten the service life.
When replacing vulnerable parts, there are also techniques. When choosing an E-plate, priority should be given to high-strength steel materials, which have high cost-effectiveness and can be used in most conventional crushing scenarios. But if the hard rock is broken for a long time and has strong corrosiveness, it is necessary to choose a higher alloy material for the E-plate, which can reduce the frequency of replacement and be more cost-effective in the long run.
There are also some non critical components, such as connectors with low stress, which can be made of cast steel material. However, it is important to ensure that the dimensions match the original ones and align them during installation. Otherwise, problems may arise shortly after installation, which may delay production.
Different models of jaw crushers
| Series/Purpose | Representative model | Inlet size (mm) | Maximum feeding particle size (mm) | Discharge port adjustment (mm) | Processing capacity (t/h) | Power (kW) | Typical features/applicable scenarios |
| PE Coarse crushing jaw crusher | PE-150×250 | 150×250 | 125 | 10～40 | 1～3 | 7.5 | Classic compound oscillation coarse crushing, suitable for laboratories/small production |
| PE Coarse crushing jaw crusher | PE-250×400 | 250×400 | 210 | 20～60 | 3～13 | 15 | Small mine/sand making line introduction |
| PE Coarse crushing jaw crusher | PE-400×600 | 400×600 | 340 | 40～100 | 10～35 | 30 | Common configurations for 50 t/h class |
| PE Coarse crushing jaw crusher | PE-500×750 | 500×750 | 425 | 50～100 | 25～60 | 55 | 100 t/h class commonly used models |
| PE Coarse crushing jaw crusher | PE-600×900 | 600×900 | 500 | 65～180 | 30～85 | 55～75 | Main force of medium-sized mines/sand and gravel quarries |
| PE Coarse crushing jaw crusher | PE-750×1060 | 750×1060 | 630 | 80～180 | 72～150 | 90～110 | 200 t/h high production capacity |
| PE Coarse crushing jaw crusher | PE-900×1200 | 900×1200 | 780 | 95～255 | 100～240 | 110～132 | Mainstream of large aggregate plants |
| PE Coarse crushing jaw crusher | PE-1200×1500 | 1200×1500 | 1020 | 150～300 | 250～500 | 160 | Ultra-large output and high hardness materials |
| PEX Fine jaw breaking | PEX-150×500 | 150×500 | 120 | 10～40 | 3～15 | 11 | Medium and fine crushing, small production and fine adjustment |
| PEX Fine jaw breaking | PEX-250×750 | 250×750 | 210 | 15～50 | 8～35 | 30 | 80～100 t/h medium and fine crushing |
| PEX Fine jaw breaking | PEX-300×1300 | 300×1300 | 250 | 15～50 | 20～60 | 75 | Large processing capacity medium and fine crushing |
Application Fields of PE Jaw Crusher
It is widely used in many industries such as mining, metallurgy, building materials, highways, railways, water conservancy, and the chemical industry. It can be used to crush various materials such as granite, basalt, limestone, calcite, river pebbles, slag, marble, crushed stone, and gypsum.
Why choose us?
The core of choosing Yonghua Machinery PE E-type crusher lies in its need for efficient crushing, while also considering applicability and guarantee. Specifically:
Strong crushing ability
With a deep V-shaped cavity design, large feed inlet, long stroke, it can quickly blow ore, rock, and finished products with compressive strength ≤ 320MPa to achieve uniform particle size, reducing the cost of secondary crushing; The key components are made of high manganese steel and high-strength alloy, which are durable, damage resistant, and have a low failure rate, making them suitable for continuous operation.
Full model coverage
from small laboratory models to large industrial models, suitable for small trial production to large-scale production, avoiding the selection of unsuitable equipment.
More worry free
The side opening door casing facilitates the replacement of lining plates and maintenance, and some models come with hydraulic discharge ports, allowing for quick switching of finished product granularity in just a few minutes; It can also customize functions such as anti blocking and mobile crushing to adapt to special scenarios.
After sales guarantee
If you have any questions, you can consult our online customer service, with a 24-hour response time. Fragile parts will be shipped on the same day, reducing downtime losses.
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