खनन उपकरण गाइड: What Equipment Should You Use for Medium and Fine Crushing in Sand and Gravel Yards, Concentrators and Concrete Mixing Plants? A Complete Guide to SC Compound Cone Crushers

The SC compound cone crusher is a cone crusher developed by introducing advanced technologies from Japan, Taiwan, and other countries, and it reaches a world-class level. Essentially, it is a multi-cylinder hydraulic cone crusher, with the outer spring serving only for locking and iron-overload protection, making operation and maintenance easier without requiring too many complex skills. The internal design is 100% identical to that of a multi-cylinder hydraulic cone crusher, so the output and particle shape are also exactly the same, with output reaching up to 90% of the world’s top multi-cylinder hydraulic cone crushers. It is currently a high-energy, high-efficiency cone crusher with excellent cost performance in the global market. This series of equipment is suitable for crushing ores and rocks of medium or higher hardness and can crush material of medium or higher grade. Each model offers four types of crushing chambers: coarse, medium, fine, and ultra-fine. The SC compound cone crusher organically combines the "stability and simplicity" of spring cone crushers with the "convenience and efficiency" of hydraulic cone crushers. Its internal design references the world’s top multi-cylinder hydraulic cone crushers, creating a high-energy, high-efficiency cone crusher that operates very smoothly, has an extremely low failure rate, features hydraulic clearing and hydraulic discharge adjustment, is simple and convenient to operate and maintain, and produces excellent particle shapes. Why choose the SC compound cone crusher? First, it has a simple structure, stable operation, consistent performance, and its output is 8-10% higher than similar products. Second, the frame uses cast steel or CO2 shielded welding and is annealed for durability; all easily worn parts are protected with manganese steel, extending the machine’s overall lifespan. Third, the spring locking device ensures stable crushing force and provides iron-overload release protection; the hydraulic clearing cylinder can quickly remove accumulations and difficult-to-crush material from the crushing chamber, greatly reducing maintenance time; hydraulic adjustment of the discharge opening is convenient, fast, and precise. Fourth, the labyrinth dust-proof seal ensures clean lubrication oil; the surfaces of the moving and fixed mantles are finely processed, requiring no packing material, making replacement simple and quick, without delaying normal production (domestic cone crushers require packing material to be dried for 7-10 days). Fifth, the lubrication system is equipped with return oil and temperature protection devices, and it is interlocked with the main motor to protect the main unit from damage. Sixth, it uses laminated crushing principles, producing mostly cubic-shaped crushed products, greatly reducing flaky material. The SC compound cone crusher is mainly used in sand and gravel yards, mineral processing plants, building material factories, concrete mixing stations, and crushing of railway ballast, and is widely applied to the crushing and sand-making of common stones such as pebbles, river pebbles, granite, diabase, basalt, quartz stone, limestone, iron ore, and coal gangue. The groups that need the SC compound cone crusher include sand and gravel yards and aggregate producers, metal ore beneficiation plants, concrete mixing stations, building material factories, railway ballast production units, equipment procurement departments in the chemical industry, EPC contractors for crushing and screening production lines, equipment distributors and stockists, and overseas mining and construction material project purchasers. In what situations should you choose or replace the SC compound cone crusher? - When medium and fine crushing of medium or higher hardness ores and rocks is needed, such as river pebbles, pebbles, granite, basalt, etc.; - When you want to reduce feed size, achieve more crushing with less grinding, and improve mill production capacity; - When the finished product shape is required to be high, with a high proportion of cubic shapes and few needle-like particles; - When the old spring cone crusher is severely worn, has insufficient capacity, or the finished product shape does not meet standards; - When a multi-purpose machine is needed, and coarse, medium, and fine crushing can be achieved by replacing the chamber liners; - When export projects require a high cost-performance ratio and a compound cone crusher that is easy to operate and maintain. How to choose an SC compound cone crusher? Step 1: Confirm the material hardness and properties. The SC series is suitable for crushing ores and rocks of medium or higher hardness. Step 2: Confirm the crushing stage. Choose C coarse chamber type, M medium chamber type, F fine chamber type, or EF ultra-fine chamber type according to the finished product size requirements. Step 3: Confirm the maximum feed size. Select the corresponding feed opening size based on the model and chamber type. Step 4: Confirm the processing capacity. Choose the corresponding model within the range of 18-725t/h according to the production line capacity requirements. Step 5: Confirm the motor power. Choose a motor ranging from 37-220kW according to the processing capacity. Step 6: Confirm the installation foundation. It should be installed on a solid concrete foundation and fixed with anchor bolts. Step 7: Confirm the wear-resistant parts material. Select manganese steel or alloy steel liners based on the abrasiveness of the material. Step 8: Confirm the hydraulic and lubrication system configuration. Hydraulic cavity cleaning, hydraulic adjustment of the discharge port, and main motor interlock protection ensure safe operation of the equipment.

SC Series Compound Cone Crusher Models and Parameters Table

Model	Chamber Type	Maximum Feed Size (mm)	Minimum Discharge Opening Size (mm)	Motor Power (kW)	Output at Closed Side Discharge 6mm (t/h)	Output at Closed Side Discharge 10mm (t/h)	Closed-side discharge opening 13mm capacity (t/h)	Closed-side discharge opening 16mm capacity (t/h)	Closed-side discharge opening 19mm capacity (t/h)	Closed-side discharge opening 22mm capacity (t/h)	Closed-side discharge opening 25mm capacity (t/h)	Weight (kg)
SC600	C	95	10	37-45	20	25	30	35	45	50	75	5300
SC600	M	72	6	37-45	18	20	25	30	35	40	45	5300
SC1000	C	160	13	90-110	—	80	100	135	150	175	235	10800
SC1000	M	115	10	90-110	65	75	90	120	135	150	—	10800
SC1000	F	80	8	90-110	50	55	65	70	95	—	—	10510
SC1000	EF	50	6	90-110	52	62	72	78	102	—	—	10510
SC1160	C	180	13	110-132	—	—	115	135	150	180	200	15500
SC1160	M	130	10	110-132	—	100	110	120	135	165	175	15500
SC1160	F	90	10	110-132	—	80	105	110	140	—	—	15500
SC1160	EF	60	6	110-132	60	74	105	110	130	—	—	15500
SC1300	C	200	16	132-160	—	—	—	150	180	200	230	22300
SC1300	M	150	13	132-160	—	—	115	140	160	190	210	22300
SC1300	F	102	10	132-160	—	—	90	115	145	160	—	22300
SC1300	EF	70	8	132-160	—	—	88	110	135	155	—	22300
SC1380	C	215	19	185-220	—	—	—	—	200	220	260	26300
SC1380	M	160	16	185-220	—	—	—	155	180	200	220	26300

General technical parameter table

Parameter	Specification
Series	SC
Type	Compound cone crusher (spring + hydraulic)
Feed size	≤267mm
Processing capacity	18-725t/h
Model	SC600 / SC1000 / SC1160 / SC1300 / SC1380
Chamber Type	C (coarse) / M (medium) / F (fine) / EF (extra fine)
Motor power	37-220kW
Feed opening size	50-215mm
Minimum discharge opening size	6-19mm
Crushing stage	Medium crushing, fine crushing, extra fine crushing
Applicable materials	River pebbles, cobblestones, granite, basalt, diabase, quartzite, iron ore, copper ore, gold ore, manganese ore, etc.
Core advantages	Spring + hydraulic composite structure, hydraulic cavity clearing, hydraulic discharge opening adjustment, laminated crushing with good particle shape, high output, simple operation and maintenance

Dimension drawing and key dimensions: `[Image: /images/sc-compound-cone-crusher-dimension-drawing.webp]`

Material table

Component	Standard material	Optional material	Description
Frame	Cast steel / CO2 shielded welding	Wear-resistant steel plate	After annealing treatment, strong and durable
Crushing wall / grinding wall	High manganese steel (Mn18Cr2, etc.)	High chromium cast iron, alloy steel	All wear-prone parts are protected with manganese steel components
Main shaft	40Cr/42CrMo forgings	Alloy steel	Quenched and tempered, bearing huge torque
Eccentric sleeve	Cast steel / copper alloy	Babbitt alloy	Bearing huge torque
Large gear / small gear	40Cr/20CrMnTi	Alloy steel	Carburized and quenched, smooth transmission
Spring	Helical spring	Rubber spring	Locking and iron over-release protection
Hydraulic cavity-clearing cylinder	Cast steel / forged steel	Stainless steel	Quickly remove aggregate and unbreakable materials in the crushing chamber
Dust seal	Labyrinth-type dust seal	—	Ensure lubrication oil cleanliness
Motor	All-copper coil motor	Explosion-proof motor	Standard three-phase asynchronous motor
Control box	Carbon steel / stainless steel	Rainproof and dustproof type	Optional variable frequency speed control

Installation method: The SC series composite cone crusher must be installed on a solid concrete foundation, which must withstand the equipment's own weight and the heavy impact loads during crushing operations; During installation, ensure the foundation levelness meets requirements and that anchor bolts are tightened according to torque requirements; After the equipment is positioned, adjust the levelness to ensure the spindle is parallel to the motor shaft; The motor and crusher are transmitted via V-belt or direct drive; belt tension or centering accuracy must be adjusted to ensure smooth transmission; The spring system must be properly installed and the pass iron release protection function adjusted; The hydraulic system must be properly connected and the hydraulic chamber cleaning and discharge port adjustment functions should be adjusted; The lubrication system must be properly connected to ensure good bearing lubrication, with oil return and temperature protection devices interlocked with the main motor; After installation, a no-load trial run is required to check whether the spindle rotates smoothly, and whether there is abnormal vibration or noise, ensuring uniform clearance between the crushing wall and the mortar wall; During load trial runs, gradually increase the feed rate, observe the crushing effect and motor current, and ensure it does not exceed the rated current; A dust removal system is required to reduce dust pollution.

Application Scenario Table

Industry	Application	Recommended configuration	Key requirements
Sand and gravel yard	Production of construction crushed stone and manufactured sand	SC600–SC1300, F/EF cavity type	Good particle shape, high quality of sand and gravel aggregates
Ore concentrator plant	Fine fragments in iron ore, copper ore, and gold ore	SC1000–SC1380, M/F cavity type	Wear-resistant, more crushing, less grinding, and reduced grinding size
Concrete batching plant	Aggregate production	SC600–SC1160, C/M cavity type	High-yield, graded formulation
Building materials factory	Limestone and basalt are fractured	SC600–SC1160, C/M cavity type	Large capacity, high reliability
Railway track gravel	Daoist slag shatters	SC1000–SC1300, C-cavity type	High output, cubic particle shape
Dry mortar	Fine crushing in raw materials	SC600–SC1000, F cavity type	Controllable finished particle size
Power plant desulfurization	Limestone desulfurizer preparation	SC600–SC1000, F/EF cavity type	Fine crushing, uniform particle size
Quartz sand processing	Fine crushing in quartz	SC1000–SC1300, F/EF cavity type	Wear-resistant, large processing capacity

Note: The SC compound cone crusher is suitable for crushing ores and rocks of medium or higher hardness. Each model is equipped with four cavity types: C for coarse crushing, M for medium crushing, F for fine crushing, and EF for ultra-fine crushing. Users can choose according to the material hardness and finished particle size requirements. A spring lock device provides over-iron release protection, and hydraulic cavity cleaning and hydraulic adjustment of the discharge port simplify operation and maintenance. Explosion-proof motors must be selected in explosive environments. For highly abrasive materials, high-chrome cast iron or alloy steel liners are recommended.

Selection considerations (compared with CS spring cone crusher and HPT multi-cylinder hydraulic cone crusher): The core differences between the SC compound cone crusher and the CS series high-efficiency spring cone crusher and HPT series multi-cylinder hydraulic cone crusher arestructural principles and operational convenience.The SC compound cone crusher is essentially a multi-cylinder hydraulic cone crusher. The external springs serve only for locking and iron-overload protection. Its internal design is 100% identical to that of a multi-cylinder hydraulic cone crusher, with the same output and particle size. However, the springs make operation and maintenance easier without the need for complex technology, while still featuring functions of hydraulic cone crushers such as hydraulic cavity clearing and hydraulic discharge adjustment. Therefore, it is called 'compound' (spring + hydraulic). The CS series high-efficiency spring cone crusher uses a spring overload protection system, with a relatively simple structure, low investment cost, and high cost performance. The HPT series multi-cylinder hydraulic cone crusher uses a spindle-fixed, eccentric sleeve rotating around the spindle structure and a PLC integrated control system. It is fully hydraulically controlled, with a dual-action hydraulic safety cylinder providing sensitive iron-overload protection. When selecting models, projects that require simple operation and maintenance and high cost performance prefer the SC compound cone crusher. Projects with high requirements for intelligent control prefer the HPT series, and projects sensitive to investment cost with relatively simple working conditions can consider the CS series.

## Technical FAQ

1. What is the SC compound cone crusher?

The SC compound cone crusher is a cone crusher developed using advanced technologies from Japan, Taiwan, and other regions, with world-leading standards. It is essentially a multi-cylinder hydraulic cone crusher, with the external springs serving only for locking and iron-overload protection.

2. What does 'compound' mean in SC compound cone crusher?

'Compound' refers to the spring + hydraulic composite structure. Compared to fully hydraulic cone crushers, the springs make operation and maintenance easier without requiring complex technology. The spring structure is stable and low in cost; at the same time, the machine also retains hydraulic functions such as cavity clearing and hydraulic discharge adjustment, which is why it is called 'compound.'

3. What is the processing capacity of the SC compound cone crusher?

The processing capacity ranges from 18 to 725 t/h, depending on the model, chamber type, and discharge opening size. SC600 has a processing capacity of 18-75 t/h, and SC1380 has a processing capacity of 200-260 t/h.

4. What is the maximum feed size of the SC compound cone crusher?

The maximum feed size ranges from 50 to 215 mm, depending on the model and chamber type. SC1000 EF chamber type has a maximum feed size of 50 mm, while SC1380 C chamber type has a maximum feed size of 215 mm.

5. What is the motor power of the SC compound cone crusher?

The motor power ranges from 37-220kW, depending on the model. SC600 is 37-45kW, SC1380 is 185-220kW.

6. What is the working principle of the SC compound cone crusher?

During operation, the motor drives the eccentric sleeve to rotate through a V-belt, drive shaft, and bevel gear pair. The moving cone performs a swinging motion under the action of the eccentric sleeve, causing the moving cone and the fixed cone to approach and separate intermittently. The material in the crushing chamber is continuously subjected to pressing and impact, breaking down, and the crushed material is discharged from the bottom.

7. What types of crushing chambers does the SC compound cone crusher have?

Each model has four types of crushing chambers available: C coarse, M medium, F fine, and EF ultra-fine.

8. What is the shape of the finished product from the SC compound cone crusher?

Using the lamination crushing principle, the crushed product is mostly cubic in structure, greatly reducing flaky and needle-like materials. Through optimization of motion parameters and chamber types, the particle shape has approached or reached the standard of a impact crusher.

9. Does the SC compound cone crusher have iron overload protection?

Yes. The spring locking device stabilizes the crushing force and provides iron release protection. When uncrushable foreign objects enter the crushing chamber, the spring compresses to expel the objects, providing safety protection and preventing machine damage.

10. How is the discharge opening of the SC compound cone crusher adjusted?

It is equipped with a hydraulic discharge opening adjustment function, which is convenient, fast, and accurate. Compared with most domestic spring cone crushers that require manual adjustment, the SC compound cone crusher is equipped with a hydraulic adjustment function that is simple and precise.

11. What is the hydraulic cavity cleaning function of the SC compound cone crusher?

The hydraulic cavity cleaning cylinder can quickly remove accumulated materials and hard-to-crush objects from the crushing chamber, greatly shortening maintenance time.

12. How does the output of the SC compound cone crusher compare with multi-cylinder hydraulic cone crushers?

The output can reach 90% of the world's top multi-cylinder hydraulic cone crushers, and its output is 8-10% higher compared with similar products.

13. What materials is the SC compound cone crusher suitable for?

Suitable for pebbles, cobblestones, granite, basalt, diabase, quartzite, and various ores such as iron, copper, gold, and manganese. The harder the stone, the greater the wear; the advantages of using the SC composite cone crusher become more significant.

14. Does the SC composite cone crusher require a foundation?

Yes. It must be installed on a solid concrete foundation, which should bear the weight of the equipment and the large impact loads during crushing operations, and the base is fixed with anchor bolts.

15. What are the common faults of the SC composite cone crusher?

Wear on the crushing wall or bowl liner (strong material abrasiveness), bearing overheating (poor lubrication or overload), spring failure (overload or fatigue), abnormal vibration (eccentric sleeve wear or foreign object blockage), discharge port blockage (uneven feeding or too small discharge port).

16. Can the SC composite cone crusher be used in a mobile crushing station?

Yes. The SC series cone crusher can serve as the main machine of a mobile crushing station, suitable for conditions requiring frequent relocation.

17. What are the wear parts of the SC composite cone crusher?

Crushing wall, bowl liner, eccentric sleeve, dust ring, spring, etc., among which the crushing wall and bowl liner are the main wear parts. It is recommended to choose high manganese steel or high-chromium cast iron.

18. What is the difference between the SC composite cone crusher and the CS spring cone crusher?

The SC composite cone crusher is essentially a multi-cylinder hydraulic cone crusher. The peripheral spring only provides locking and iron-overload protection, while also featuring hydraulic cavity clearing and hydraulic discharge adjustment functions, making operation and maintenance simple. The CS series high-efficiency spring cone crusher uses a spring overload protection system, with a relatively simple structure, lower investment cost, and high cost-performance ratio. The SC series can achieve 90% of the capacity of the world’s top multi-cylinder hydraulic cone crushers.

19. Can the SC composite cone crusher be customized?

Yes. The motor power, cavity type (C/M/F/EF), liner material (manganese steel/high-chromium cast iron/alloy steel), motor configuration (explosion-proof motor), dust removal system, central control system, and variable frequency speed regulation can all be customized.

20. Does the SC composite cone crusher comply with RoHS and REACH?

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

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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