راهنمای تجهیزات معدنی: What Equipment Should You Use for Fine Crushing in Cement Plants, Mines and Sand and Gravel Aggregates? A Complete Guide to PLF Series Vertical Combination Crushers

The PLF series vertical composite crusher is a new type of fine and coarse crusher developed by optimizing the main technical parameters based on combined domestic and international similar crusher technologies. It is mainly used for medium-sized cement raw materials and clinker, providing an ideal fine crushing equipment for technical renovation or new cement production lines in cement plants. It is also suitable for crushing other medium-hard minerals such as iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal. The equipment features a large crushing ratio, low energy consumption, stable operation, simple structure, and convenient operation and maintenance. Why choose the PLF series vertical composite crusher? First, it is designed by optimizing domestic and international similar crusher technologies, with a simple structure and easy operation and maintenance. Second, it has a large crushing ratio, low energy consumption, and stable operation, suitable for fine and coarse crushing of medium-hard minerals. Third, it is specifically designed for technical renovation or new cement production lines, capable of processing cement raw materials and clinker, providing an ideal fine crushing equipment for cement production. Fourth, it has a wide range of applications, not only suitable for the cement industry but also for crushing materials such as iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal. Fifth, the discharge particle size is controllable, with 60-90% of the output below 3-5mm, meeting different fineness requirements. The PLF series vertical composite crusher is mainly used for fine crushing of medium-sized cement raw materials and clinker in the cement industry, technical renovation or new cement production lines; crushing medium-hard minerals such as iron ore and sandstone in the mining industry; crushing materials such as blast furnace slag, coal gangue, and lump coal in the construction materials industry; as well as fine and coarse crushing operations in the chemical and metallurgical industries. The groups in need of the PLF series include equipment procurement and maintenance departments of cement plants, mining enterprises, construction materials and chemical enterprise procurement departments, metallurgical equipment maintenance departments, EPC contractors for cement production lines, equipment distributors and stockists, and overseas cement and mining project buyers. When should you choose or replace the PLF series vertical composite crusher? - Cement plants need to finely crush cement raw materials and clinker, providing ideal fine crushing equipment for production lines. - Mines need to crush medium-hard minerals such as iron ore and sandstone. - The construction materials industry needs to process materials such as blast furnace slag, coal gangue, and lump coal. - Old crushing equipment has a small crushing ratio, high energy consumption, and unstable operation and needs an upgrade. Establishing a new cement production line or performing a technical transformation requires the configuration of fine and coarse grinding equipment; export projects need vertical compound crushers that are compatible with overseas voltages and cement conditions. How to choose the PLF series vertical compound crusher? Step one: confirm the type and hardness of the material. The PLF series is suitable for medium-hard ores such as cement raw materials, clinker, iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal. Step two: confirm the feed particle size and select the model corresponding to a feed size within the range of <100-220mm. Step three: confirm the required output particle size. The output particle size of the PLF series is <3-5mm for 60-90% of the material. Select according to the fineness requirements of the finished product. Step four: confirm production capacity and choose the model within the range of 10-230 t/h according to the production line capacity. Step five: confirm spindle speed and select a speed within the range of 370-934 r/min according to the material hardness and product requirements. Step six: confirm motor power and choose a motor of 22-185 kW based on the processing capacity. Step seven: confirm installation foundation, which needs to be on a solid concrete foundation and fixed with anchor bolts. Step eight: confirm environmental protection and automation configuration; dust removal systems and a central control system can be equipped.

PLF Series Vertical Compound Crusher Model and Parameter Table

Model	Feed Particle Size (mm)	Output Particle Size (mm)	Production Capacity (t/h)	Spindle Speed (r/min)	Power (kW)	Dimensions (L×W×H mm)
PFL-800	<100	<3-5 (60-90%)	10-20	934	22	2100×1200×1700
PFL-1000	<120	<3-5 (60-90%)	20-40	769	37	2600×1400×1900
PFL-1250	<150	<3-5 (60-90%)	40-70	530	75	2800×1600×2100
PFL-1500	<180	<3-5 (60-90%)	70-100	495	132	3100×1900×2200
PFL-1750	<200	<3-5 (60-90%)	130-190	424	160	3710×2360×2390
PFL-2000	<220	<3-5 (60-90%)	160-230	370	185	4100×2660×2620

General Technical Parameter Table

Parameter	Specification
Series	PLF
Type	Vertical Compound Crusher (fine crushing, coarse grinding)
Feed Particle Size	<100–220mm
Output Particle Size	<3–5mm (60–90%)
Production Capacity	10–230t/h
Spindle Speed	370–934 r/min
Motor Power	22–185 kW
Core Advantages	High crushing ratio, low energy consumption, smooth operation, simple structure, convenient operation and maintenance
Applicable Materials	Medium-hard ores such as cement raw materials, clinker, iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal

Dimension diagram and key dimensions: `[Image: /images/plf-vertical-combination-crusher-dimension-drawing.webp]`

Material Table

Component	Standard Material	Optional Material	Description
Frame/Body	High-strength carbon steel/cast steel	Wear-resistant steel plate	Bears crushing reaction force, requires high rigidity
Rotor/Hammer	High-chromium cast iron	High-manganese steel, alloy steel	Core wear parts, high wear resistance
Liner Plate	High-manganese steel (ZGMn13)	High-chromium cast iron	Protects the body, extends service life
Main Shaft	40Cr/42CrMo forging	Alloy steel	Quenched and tempered, withstands huge torque
Bearing	Self-aligning roller bearing	Double-row cylindrical roller bearing	Withstands heavy load and impact
Motor	Full copper coil motor	Explosion-proof motor	Standard three-phase asynchronous motor
Control Box	Carbon steel/stainless steel	Rainproof and dustproof	Optional variable frequency speed regulation

Installation method: The PLF series vertical compound crusher must be installed on a sturdy concrete foundation, which should be able to bear the weight of the equipment and the huge impact load during crushing operations; during installation, the foundation's levelness must meet requirements, and anchor bolts should be tightened according to the torque specifications; once the equipment is in place, the level should be adjusted to ensure the main shaft is parallel to the motor shaft; the motor and crusher are connected via a V-belt drive, which requires adjusting the belt tension to ensure smooth transmission; after installation, a no-load test run should be conducted to check whether the main shaft rotates smoothly, and to detect any abnormal vibration or noise, confirming that the gap between the rotor and the liner is uniform; during the load test run, the feed amount should be gradually increased, monitoring the crushing effect and motor current to ensure it does not exceed the rated current; a dust removal system should be equipped to reduce dust pollution; a central control system can be installed for online monitoring and automatic control.

Application Scenarios Table

Industry	Application	Recommended Configuration	Key Requirements
Cement Industry	Fine crushing of cement raw materials and clinker, technological renovation or new production lines	PFL-800–PFL-2000	Good crushing effect, low energy consumption
Mining Industry	Fine crushing of medium-hard ores such as iron ore and sandstone	PFL-1000–PFL-1750	Large crushing ratio, wear-resistant
Construction Materials Industry	Crushing of blast furnace slag, coal gangue, lump coal	PFL-1000–PFL-1500	Stable operation, large processing capacity
Chemical Industry	Raw material fine crushing and coarse grinding	PFL-800–PFL-1250	Simple structure, easy maintenance
Metallurgical Industry	Crushing of metallurgical slag	PFL-1250–PFL-2000	Wear-resistant, highly reliable

Note: The PLF series vertical compound crusher is suitable for medium-hard ores such as cement raw materials, clinker, iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal. Feed size <100-220mm, output size <3-5mm accounts for 60-90%. For explosive environments, explosion-proof motors must be selected. For highly abrasive materials, high-chrome cast iron or alloy steel hammers and liners are recommended.

Selection considerations (compared with high-efficiency fine crushers): The core differences between the PLF series vertical compound crusher and the high-efficiency fine crusher lie inthe structural form, applicable materials, and fine crushing principles.The PLF series adopts a vertical compound structure, optimized according to the domestic and international similar crusher technologies. It is mainly used for fine crushing and coarse grinding of cement raw materials and clinker, with a product size of <3-5mm accounting for 60-90%. It has a high crushing ratio, low energy consumption, and smooth operation. The high-efficiency fine crusher (such as the PXJ series) uses high-speed rotor rotation. The material enters the first crushing chamber and is broken by the impact of the rotor hammer, then enters the second fine crushing chamber for further crushing. It is mainly used in the production of high-quality stone for artificial sand, construction, cement, refractory materials, and metallurgy, with the product size of <5mm accounting for more than 85%, uniform sand particle size, and high compressive strength. When choosing a machine, the PLF series is preferred for fine crushing of cement raw materials/clinker and coarse grinding of medium-hard ore, while the high-efficiency fine crusher is preferred for artificial sand production and fine crushing of high-quality aggregates.

## Technical FAQ

1. What is the PLF series vertical compound crusher?

The PLF series vertical compound crusher is a new type of fine crushing and coarse grinding product, developed by integrating domestic and international similar crusher technologies and optimizing key technical parameters. It is mainly used for crushing cement raw materials, clinker, as well as medium-hard ores such as iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal.

2. What is the capacity of the PLF series vertical compound crusher?

The processing capacity is 10-230 t/h, depending on the model. PFL-800 is 10-20 t/h, and PFL-2000 is 160-230 t/h.

3. What is the maximum feed size of the PLF series vertical compound crusher?

The feed size is <100-220mm, depending on the model. PFL-800 is <100mm, and PFL-2000 is <220mm.

4. What is the motor power of the PLF series vertical compound crusher?

The motor power is 22-185 kW, depending on the model. PFL-800 is 22 kW, and PFL-2000 is 185 kW.

5. What is the working principle of the PLF series vertical compound crusher?

The rotor rotates at high speed, and the material enters the first crushing chamber to be broken by impact with the rotor hammers, then enters the second fine crushing chamber for further pulverization, and finally discharged from the outlet. The proportion of discharge particle size <3-5mm is 60-90%.

6. What materials are suitable for the PLF series vertical compound crusher?

Suitable for cement raw material, clinker, iron ore, sandstone, gypsum, blast furnace slag, coal gangue, lump coal, and other medium-hard ores.

7. What is the discharge particle size of the PLF series vertical compound crusher?

The proportion of discharge particle size <3-5mm is 60-90%, and it can be adjusted according to the hardness of the material and the spindle speed.

8. What are the main features of the PLF series vertical compound crusher?

It has characteristics such as a large crushing ratio, low energy consumption, stable operation, simple structure, and convenient operation and maintenance, making it an ideal fine crushing equipment for technological transformation or newly built cement production lines.

9. What are the wear parts of the PLF series vertical compound crusher?

Hammer, liner, rotor, etc. Among them, the hammer is the core wear part, and it is recommended to select high-chromium cast iron or high-manganese steel.

10. Does the PLF series vertical compound crusher require a foundation?

Yes. It needs to be installed on a solid concrete foundation, which must bear the weight of the equipment and the huge impact load during crushing, and be fixed with foundation bolts.

11. What are the common faults of the PLF series vertical compound crusher?

Hammer wear (material is highly abrasive), bearing overheating (poor lubrication or overload), belt slack or breakage (insufficient tension), abnormal vibration (rotor imbalance or foreign object blockage), discharge port blockage (uneven feeding or small discharge port).

12. Can the PLF series vertical compound crusher be used in cement plants?

Yes, it is the ideal fine crushing equipment designed for technological transformation or newly built cement production lines, mainly used for fine crushing of medium cement raw material and clinker.

13. Can the PLF series vertical compound crusher be used in mines?

Yes, it is suitable for fine crushing and coarse grinding of medium-hard ores such as iron ore and sandstone.

14. What is the crushing ratio of the PLF series vertical compound crusher?

The PLF series vertical compound crusher features a large crushing ratio, capable of crushing materials of <100-220mm to <3-5mm in one pass, accounting for 60-90%.

15. What is the main shaft speed of the PLF series vertical compound crusher?

The main shaft speed ranges from 370-934 r/min, depending on the model. PFL-800 is 934 r/min, and PFL-2000 is 370 r/min.

16. What is the difference between the PLF series vertical compound crusher and the high-efficiency fine crusher?

The PLF series uses a vertical compound structure, mainly for fine crushing and coarse grinding of cement raw materials and clinker, with discharge particle size <3-5mm accounting for 60-90%; the high-efficiency fine crusher is mainly used for producing high-quality stones in industries such as manufactured sand, construction, cement, refractory, metallurgy, etc., with discharge particle size <5mm accounting for more than 85%, uniform sand particle size, and high compressive strength.

17. Can the PLF series vertical compound crusher be customized?

Motor power, hammer material (high-chrome cast iron/high manganese steel/alloy steel), motor configuration (explosion-proof motor), dust removal system, central control system, and variable frequency speed regulation can be customized.

18. Does the PLF series vertical compound crusher comply with RoHS and REACH?

Standard equipment complies with RoHS and REACH regulations and does not contain SVHC high-concern substances. Please refer to the product test report for details.

19. How to maintain the PLF series vertical compound crusher?

Regularly check the hammer wear and replace or adjust it in time; regularly check the wear of the liners; regularly check bearing lubrication, add or replace grease; regularly check belt tension; regularly check whether the foundation bolts and connecting bolts are loose; regularly clean accumulated material and foreign objects inside the crushing chamber.

20. How to choose the model of the PLF series vertical compound crusher?

Determine applicability according to the type and hardness of the material, choose the corresponding model according to the feed particle size, confirm <3-5mm content according to the discharge particle size requirement, select the corresponding model within the 10-230t/h range according to the production line capacity requirement, choose the main shaft speed within 370-934 r/min according to material hardness and finished product requirements, and select a 22-185kW motor according to processing capacity.

Technical FAQ

What data should I send for a crusher quotation?

Provide material type, maximum feed size, capacity, required product size, moisture, working hours and the upstream and downstream equipment.

How do I compare two crusher models?

Compare the same duty point: capacity, feed opening, discharge range, motor power, wear-part life, maintenance access and total operating cost.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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