EXCT Limestone Mineral Sizers is an innovative equipment specially designed for the coarse and medium crushing processes of materials with medium hardness or lower (such as limestone, coal, slag). It adopts the unique "double-roller counter-rotating" and "shear-compression" crushing principle. Through the mutual engagement of two wear-resistant alloy tooth rollers, large pieces of limestone are efficiently crushed into uniform particle sizes.

Unlike the cone crushers that rely on layered crushing, our Limestone Mineral Sizers achieves precise crushing of materials with lower energy consumption and a gentler approach. The output particle size is uniform and controllable, effectively reducing the over-crushing phenomenon in the limestone production line and significantly enhancing the value and yield of the finished products.

Limestone Mineral Sizers crusher utilizes the shear force and tensile force between the toothed rollers to break the materials.

Limestone Mineral Sizers has two inwardly rotating toothed rollers with replaceable crushing teeth. The most suitable feeding method is by apron feeder or screening equipment, which conveys the material at a uniform rate and distributes it evenly over the toothed rollers.

1.The mineral is gripped by the leading faces of opposed rotor teeth,and to be subjected to stress under the concentrated load of the rotor teeth.The stress causes mineral to be break along its natural texture.

2.Mineral is broken in tension by being subjected to a three point loading, which between the front tooth faces on one rotor and rear tooth faces on the other rotor.

3.For the mineral that has not been fully broken, through the rotor teeth and fixed teeth of the breaker bar can be further broken to ensure the 3d dimension requirements of the discharging material.

Limestone Crusher Drive Device

Drive Device

Two independent drive units, each drive units includes: motor, high-speed end coupling, gear box, low-speed end coupling. The high-speed end coupling uses a hydraulic coupling to connect the motor to the gearbox. The gearbox adopts parallel shaft helical gear structure to meet the requirements of power transmission, speed ratio and torque under extreme load of the Limestone Mineral Sizers .

Toothed Roller

Toothed roller can be divided into Primary Limestone Mineral Sizers Toothed Roller and Secondary Limestone Mineral Sizers Toothed Roller. Easy installation and disassembly of the Limestone Mineral Sizers tooth head, which can significantly reduce the maintenance time and lower the maintenance cost.

Housing

Limestone Mineral Sizers housing is designed as a rigid host frame, and the housing is made of cast steel and connected by high strength bolts. Wear-resistant plates are installed around the inside of the housing, and comb shaped wear plates are installed on both sides of the housing to prevent excessive material from adhering to the crusher tooth rollers.

Side Plates

The side plates of the Limestone Crusher are integrally formed through high-quality casting technology, ensuring a stable and reliable structure. After precise processing by a high-precision CNC lathe, the side plates achieve strict mating accuracy during installation. This design not only extends the service life of key components but also ensures the smooth operation of the entire machine, providing continuous support for the equipment under high-intensity working conditions.

Lubrication Device

Limestone Mineral Sizers adopts centralized automatic lubrication system, it can be more oil filling times, oil filling time Settings, reliable to ensure the effective and reliable lubrication of each part. Automatic control of oil supply interval time, oil supply pressure is large, oil supply speed is fast, the bearing is fully lubricated effectively, so that the core part of the teeth roller bearing to achieve good lubrication, greatly extend the service life of the teeth roller.

Running Gear

The tramming device is installed at the bottom of the Limestone Mineral Sizers and driven by a motor to move along a track to the maintenance access, facilitating easy maintenance and avoiding disassembly. This design allows the equipment to move smoothly between the operating and maintenance areas, reducing manual labor and minimizing downtime during maintenance, thus improving operational efficiency.

The feeding granularity of primary sizers is less than or equal to 1500mm and the discharging granularity is less than 300mm. The arrangement of crushing tooth shapes and tooth shapes are arranged by special spiral tooth shapes. The crushing teeth are cast from abrasion resistant and impact resistant alloy steel. Primary Sizer toothed roller has a unique and novel tooth design structure with deep spiral distribution for high productivity. The passing cavities are formed between the two toothed rollers and the side plate body for screening and crushing materials respectively.

Primary Sizers Toothed Roller

The Feeding size of Secondary sizer less than or equal to 300 mm (a small amount of 400mm is allowed), and the discharging granularity is less than 50mm. The connection form of the teeth plate adopts a single dovetail groove, which is complementary to the bevel of the insert clamping block, and then the crushing tooth plate is installed on the fixing seat of the teeth plate, formed a surface to surface connection, which is tightened and pressed by high-strength bolts. The function of the bolt becomes a fixed insert clamping block, avoiding the problem of the fixed lock bolt breaking, teeth plate falling off or difficult to disassemble and replace.

Secondary Sizers Toothed Roller

01/Extremely Low Over-crushing Rate

● Enhances Product Value: The layered principle of the cone crusher easily generates a large amount of needle-like, flake-like and internal cracked stones, resulting in excessive powder. While the materials produced by the Limestone Mineral Sizers are mostly cubes with uniform particles, the over-crushing rate is extremely low. It is particularly suitable for high-standard concrete aggregates, directly enhancing your product price and market competitiveness.

02/Superior Adaptability To Wet Materials

● Unafraid Of Moisture Content Of Materials: When the moisture content of limestone is slightly high, the cone crusher is prone to clogging, seriously affecting production. The Limestone Mineral Sizers, due to its shear crushing principle, has stronger adaptability to wet and sticky materials, effectively avoiding clogging and ensuring the continuous and stable operation of the entire production line.

03/ High Output Capacity

● More Advantageous Unit Production Rate: For materials like limestone, the Limestone Mineral Sizers, through its continuous and rapid meshing crushing method, often achieves or even exceeds the processing capacity of the same-level cone crusher, enabling you to maximize the production capacity of your production line and meet the urgent delivery requirements.

04/ Higher Return On Investment

● Lower Initial Investment: Under the same processing capacity requirements, the purchase cost of the Limestone Mineral Sizers is significantly lower than that of the complex-construction cone crusher, allowing you to start the project quickly with less initial investment and achieve higher return on investment.

05/ Outstanding Energy-saving Economy

● Operational Energy Consumption Drops By Over 30%: The Limestone Mineral Sizers has a simple structure and efficient operation principle. Its motor power is usually much lower than that of the cone crusher with the same processing capacity, directly reducing your operational costs from the source.

06/ Easy Maintenance, Low Cost

● Time-saving, Labor-saving, Worry-free: The cone crusher has a complex structure, and its maintenance, inspection, and replacement of wear-resistant parts (such as the crushing wall and the grinding wall) are time-consuming, labor-intensive, and costly. Our Limestone Mineral Sizers features a modular design for the rollers, making replacement easy and the maintenance cycle long. This can help you save a significant amount of downtime and labor costs.

Submit your requirements and talk with one of our technical engineer about your project.

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A high quality mechanical products, must have excellent tooling equipment. In order to ensure its accuracy and meet the needs of large orders. Henan Excellent Machinery Co.,Ltd owns 140 sets of professional equipment, including Five-axis Gantry Machining-center, CNC Boring And Milling Machining Center, Vertical Machining Center, Vertical CNC Machining Center, Gantry Machining Center, Laser Cutting Machine, Laser Pipe Cutting Machine, Welding Robot Workstation, Lengthen Lathe, CNC Horizontal Machining Center, etc. Advanced processing and manufacturing equipment including Environmental Spraying Room and Heat Trea equipment and ultra large Surface Heat Treatment.

Left And Right Side Plate Blanking Process

Front And Rear End Cover processing

Left And Right Side Plate Machining Process

Left And Right Side Plate processing

Teeth Ring Internal Surface Machining Process

Teeth Ring Internal Surface processing

Teeth Base Processing

Teeth Roller Heat Treatment

At present, EXCT has fully passed ISO9001-2008 international quality system certification, complete quality system make sure that from the product development and design, production, procurement and supply to sales and service process has been effective quality controlled.

EXCT has a rigorous and skilled inspection team to ensure the success of product quality control. The quality inspection department has a strict testing process that runs through the stages of raw material procurement, production, and installation to ensure that every piece of equipment delivered to customers is qualified.

Current Detection

Voltage Detection

Shaft Temperature Detection

Vibration Detection

Noise Detection

Ultrasonic Flaw Detection

Hardness Detection

Coating Thickness Detection

Our Limestone Mineral Sizers covers more than 20 countries and regions all over the world. They are mainly used for crushing raw coal, coal gangue, lignite, coke, topsoil and other materials, and are used in coal-related industries such as thermal power plants, coal mining, coal washing plants and so on.

Submit your requirements and talk with one of our technical engineer about your project.

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Limestone Mineral Sizers are customized for each application material to provide the best configuration and meet all your requirements.engineers.

Primary Limestone Mineral Sizers s Technical Specifications
Model	2PLF800	2PLF1000	2PLF1200	2PLF1500
Teeth Roller Dia (mm)	800	1000	1200	1400
Roll length (mm)	1500-2500	1500-3000	1500-3000	2000-3500
Max feed size (mm)	800	1000	1200	1500
Output size (mm)	≤300	≤300	≤300	≤300
Capacity (t/h)	≤2000	≤3500	≤6000	≤10000

Secondary Limestone Mineral Sizers s Technical Specifications
Model	2PLS600	2PLS800	2PLS1000	2PLS1200
Teeth Roller Dia ( mm )	600	800	1000	1200
Roll length(mm)	1000-2500	1500-3000	2000-3500	2000-4000
Max feed size (mm)	200	300	350	400
Output size (mm)	50-80	50-100	50-120	50-140
Capacity ( t/h )	250-800	500-2000	600-3000	800-4000

Note: Tooth configurations vary depending on the material type, infeed size and discharge size.

Configuration information is typical values for reference. Please contact our technical engineers for more assistance with equipment selection.

1. Which material to be crushed:______
2. Handling capacity:______t/h.
3. Bulk material density: ______t/m3
4. The material compressive strength:______Mpa
5. The material HGI (hardgrove grindability index) range:
6. Material particle distribution percentage?
7. Max. grain size of the feeding material: ______mm
8. What is the grain size of the finished product after crushing?
9. What equipment is used to feed the material into the sizer?
10. What equipment is used to discharge the material from the sizer?
11. As we know,the sizer should form a system with other equipment, do you have preliminary design or hand-drawn sketch? If have, please send it to our engineer for reference.