Cone Crusher

What is Cone Crusher?

Cone crushers are suitable for crushing high-hardness materials, with strict requirements on product particle size and shape. They are the best choice for crushing various types of stone in quarries, mines, road construction, and can also provide aggregate for concrete mixing plants. The main shaft of the cone crusher is supported at both ends, the crushing chamber shape is more scientifically designed, and the hydraulic and lubrication systems employ dual safety controls.

A cone crusher is a compression crusher that uses the squeezing action between an inverted cone and fixed components to crush rock. The cone rotates within a fixed conical bowl-shaped liner (or cup-shaped liner). After falling into the crushing chamber, the rock is repeatedly squeezed and crushed until the particles are small enough to be discharged from the bottom. It is a highly efficient and powerful piece of equipment for producing fine to medium-sized aggregates.

What Is Cone Crusher Used For?

Cone Crusher is a high-performance crusher designed by absorbing modern technology and combining with the performance of metal materials in China, which is mainly used in metal mines, construction sand and gravel processing in the two-stage crushing and three-stage crushing process, Their primary task is to process smaller stones that have already been crushed by primary crushers such as jaw crushers. The main purpose of cone crushers is to further crush these materials into gravel of 10 mm, 20 mm, or 40 mm, ultimately forming a high-quality cubic shape. This cubic shape is crucial for the production of high-strength concrete and asphalt.

Cone Crusher can be widely used in mining and gravel aggregate industry, suitable for crushing all kinds of materials above medium hardness. Such as iron ore, non-ferrous metal, granite, limestone, quartzite, sandstone, river pebbles and other various ores and rocks.

What are Types and Classifications of Cone Crushers?

Cone crushers can be mainly classified into the following categories:

• Spring Cone Crusher: This is a classic early design. It uses a set of high-strength springs to protect the crusher from damage by debris (such as metal fragments). This type of crusher is highly reliable, but adjustment is relatively cumbersome, time-consuming, and labor-intensive.
• Simons Cone Crusher: This is an improved design based on the traditional spring cone crusher. The name “Simons cone crusher” is often used to refer to this type of crusher.
• Hydraulic Cone Crusher: This is the most commonly used modern equipment. It uses hydraulic cylinders instead of springs, making operation simple; the product size can be easily adjusted with the push of a button. It combines the advantages of both spring and Simons cone crushers and optimizes upon them.

Chunlei focuses on modern hydraulic systems because they are easy to operate, offer excellent performance, and provide a higher overall cost-effectiveness.

What are Structure of Cone Crushers?

A cone crusher is a complex machine with many precision parts working together. The main components include:

• Main Frame: The heavy-duty base that supports the entire structure.
• Eccentric Assembly: This is the heart of the machine. It sits at the bottom and creates the gyrating motion of the main shaft.
• Main Shaft Assembly: Holds the mantle.
• Mantle: The moving wear liner attached to the main shaft. This is a consumable part.
• Bowl Liner (Concave): The stationary wear liner attached to the upper frame. This is also a consumable part.
• Hydraulic System: Modern crushers use this for adjusting the setting, clamping the upper frame, and for tramp release. The tramp release system is the cheapest insurance you can buy. It allows the crusher to open and pass uncrushable tramp metal, saving you from a catastrophic, six-figure repair bill.

Cone Crusher ordered by Customer

Chunlei Machinery has been engaged in mining machinery manufacturing for more than 30 years, with a wealth of experience in building websites and customer cases, served customers all over the world!

Technical Parameters of Cone Crusher

Model	Cavity	Open Edge Feed Size （mm）	Tight Edge Feed Size(mm)	Minimum Discharge Size(mm)	Capacity(t/h)	Maximum installed power（kw）
HPG100	C1(Ultra-coarse)	175	140	19	45-100	90
	C2(Coarse)	125	105	13
	M(Medium)	100	70	10
	F1(Fine)	71	50	9
	F2(Super fine)	33	20	6
HPG200	C2(Coarse)	235	190	19	65-250	160
	M(Medium)	171	120	16
	F1(Fine)	150	95	13
	F2(Super fine)	116	70	8
HPG300	C1(Ultra-coarse)	265	230	25	85-440	220
	C2(Coarse)	240	210	20
	M(Medium)	190	150	15
	F1(Fine)	145	105	11
	F2(Super fine)	120	80	8
HPG400	C1(Ultra-coarse)	360	290	30	135-625	315
	C2(Coarse)	310	250	25
	M(Medium)	260	196	20
	F1(Fine)	182	110	13
	F2(Super fine)	135	90	10
HPG500	C1(Ultra-coarse)	370	330	38	200-790	400
	C2(Coarse)	320	290	28
	M(Medium)	245	210	22
	F1(Fine)	180	130	13
	F2(Super fine)	150	95	10
HPG800	C1(Ultra-coarse)	450	352	38	265-1200	630
	C2(Coarse)	373	298	32
	M(Medium)	340	275	25
	F1(Fine)	280	230	16
	F2(Super fine)	235	150	10

Note: The output will vary depending on different materials, feed particle size and other factors.

Working Principle of Cone Crusher

Cone crusher motor through the triangle belt, drive shaft, drive gears drive eccentric sleeve rotation, drive the crushing wall and the rolling mortar wall of the material between the extrusion, rubbing and grinding, according to the theory of lamination, the material is subjected to a number of directions of force, according to their own texture crushing and being polished, so that the material is constantly extruded or impacted and crushed, in line with the requirements of the discharge of material from the crushing wall rotary pendulum gap at the drop, and the rest of the materials continue to be The remaining materials will continue to be crushed until they meet the requirements.

Advantageous features of Cone Crusher

• Double increase in production capacity and efficiency: the structure of fixed main shaft and eccentric sleeve rotating around the main shaft can withstand greater crushing power. Reasonable matching of eccentric distance, cavity type and motion parameters greatly improves the production capacity and working efficiency.
• Protection device: HPT series cone crusher can release the impact force gently to protect the mainframe from being damaged by over-iron, and the discharge opening automatically restores to the original position after the over-iron passes through.
• Adoption of layer compression crushing mechanism: Adoption of layer compression crushing principle design, so that the crushing occurs between the material and the material, with high crushing efficiency and excellent granularity, it is a companion for producing high-quality aggregates.
• Discharge opening is easy to adjust: Hydraulic motor adjusts the discharge opening, which can realize the precise control of the discharge opening.

Cone Crusher FAQ

Q: What is the difference between a cone crusher and a jaw crusher?

A: A jaw crusher is used for primary crushing and can handle large materials (maximum feed size can exceed 1 meter); a cone crusher is used for secondary or tertiary crushing, producing a better and more uniform particle shape. Simply put: a jaw crusher handles “coarse crushing,” while a cone crusher handles “medium and fine crushing.”

Q: How do I adjust the discharge size of a cone crusher?

A: Modern cone crushers use a hydraulic adjustment system. The discharge opening size (CSS) can be adjusted by pressing a button, even when the equipment is carrying material. When adjusting, ensure that the discharge openings on both sides are the same size to guarantee uniform output.

Q: What causes a knocking sound when a cone crusher is running?

A: This is generally due to the following reasons: loose liners, metal debris (such as excavator bucket teeth) entering the crushing chamber, or severe wear of the jaw walls. The machine should be stopped immediately for inspection to avoid serious malfunctions such as main shaft breakage.

Q: Why should a cone crusher be “filled to the brim” with feed?

A: The crushing chamber must always be filled with material; this is called “full-fill feeding.” The benefits are: the materials squeeze each other, reducing direct contact between the liner and the material, extending the liner life by more than 30%, and resulting in more uniform output particle shape.

Q: What should I do if the lubricating oil temperature in a cone crusher is too high?

A: An oil temperature exceeding 55-60℃ is abnormal. Common causes include: poor oil quality or insufficient oil quantity, damaged bearings, low cooling water pressure, and a clogged cooler. Solutions: Change the oil, add oil, clean the cooler, and check the bearings.

Q: What materials are suitable for a cone crusher to crush?

A: Suitable for materials with high hardness and strong abrasiveness, such as granite, basalt, iron ore, and copper ore. However, it is not suitable for crushing wet, sticky materials, as this can easily clog the crushing chamber.

Q: How often should the liners of a cone crusher be replaced?

A: It depends on the hardness of the material and the operating time, generally ranging from several hundred to several thousand hours. When the discharge particle size increases significantly, it indicates that the liner is worn and needs adjustment of the discharge port or replacement of the liner.

Q: What is the “iron overflow protection” of a cone crusher?

A: When an uncrushable metal object (such as excavator bucket teeth or drill bits) enters the crushing chamber, the hydraulic system automatically lowers the mantle to discharge the metal object, and then automatically resets. This effectively protects the main shaft and liner from damage.

Q: What causes excessive vibration in a cone crusher?

A: Common causes include: loose anchor bolts, uneven feeding leading to uneven wear, damaged bearings, and excessively hard material. Tighten bolts, control the uniformity of feeding, and stop the machine to check for internal wear.

Q: Which is better, a mobile cone crusher or a stationary one?

A: It depends on the needs. For multi-site rotation operations and demolition projects, choose a mobile crusher (flexible, quick relocation); for long-term fixed-site operations and large-scale production, choose a stationary crusher (high capacity, easy maintenance).