Combination Crusher

What is Combination Crusher?

This series of crushers is a new product optimized and designed based on our company’s PEL vertical compound crusher and combined with domestic and foreign fine crushing technology. Its performance has reached a relatively advanced level and is used to crush various medium-hard ores and can be widely used. Used in mining, metallurgy, refractory materials, cement, coal, glass, ceramics, electric power and other industries. Its main features: large crushing ratio; high output; high efficiency and energy saving; wearing parts are made of high hardness, high toughness, multi-element alloy wear-resistant materials, the service life is increased by 2-3 times, and the gap between the hammer head and the impact plate is Adjustable, can meet various material conditions. Compound crusher, referred to as compound crusher for short, is one of the commonly used equipment in crushing production lines and sand making production lines. Main uses: This series is suitable for crushing limestone, clinker, coal and other ores in the building materials, mining, metallurgy, and chemical industries. Its compressive strength does not exceed 140 MPa and the humidity does not exceed 15%.

What Is Combination Crusher Used For?

The vertical composite crusher is suitable for crushing all kinds of ores and is used as two or three crushing machines. Widely used in construction, metallurgy, building materials, water conservancy, electric power, refractories and other industrial sectors.
◇ Crush various rocks
◇ First choice for crushed coal
◇ Fine powder material

Combination Crusher Structure Feature

The internal structure of the vertical composite crusher is as follows

The Combination Crusher is improved on the basis of the original vertical compound crusher, the rotor disc is enlarged, the hammer head is improved, and the original small swing hammer head is replaced by a generous hammer head.

Technical Parameters of Combination Crusher

Specification	Processing Capacity (t/h)	Motor Power(kw)
800	5-15	4P 30
1000	10-30	4P 55
1250	17-60	6P 132
1500	25-80	8P 160
1750	30-100	8P 200
2000	60-150	8P 250

Working Principle of Combination Crusher

The lumpy ore falls from the feed hopper onto the upper throwing plate in the upper crushing chamber. With the help of the centrifugal force of the throwing plate, the materials are thrown to the inner wall of the cylinder, and violently collide with the impact plate installed on the inner wall. At the same time, the materials hit each other. Then, after the material enters the conical rotor cavity, it falls in a spiral shape in the conical space. After stamping and extrusion, the cracked ore is further crushed. Due to the slope between the conical rotor and the lining plate, smaller materials are prompted to migrate downward, achieving automatic classification crushing from large to small. The materials are blowed by the hammer in the conical rotor cavity. The high-speed moving block materials collide with the impact plate again. The material flows hit each other to make them crushed through blowing, impact, shearing and extrusion, thus improving the crushing efficiency. The discharge particle size becomes smaller.

Advantageous features of Combination Crusher

• Low noise and less pollution
  The working noise is less than 75 decibels (db level), and there is little dust pollution; the product is cube-shaped, has a high packing density, and has little iron pollution.
• High production efficiency and large processing capacity
  It has the functions of fine crushing and coarse grinding, and is suitable for crushing medium-hard and extra-hard materials.
• Consumable parts have long life and low loss
  The wearing parts adopt the current domestic new high-strength wear-resistant materials, which can break high-hardness materials with low loss and long service life, which can bring considerable economic benefits to customers.

Combination Crusher FAQ

Q: What is a combination crusher mainly used for?
A: It is mainly used for crushing medium-hard and soft materials such as limestone, slag, coke, coal, and gypsum. It is very common in cement plants, brick factories, and sand making production lines.

Q: Can a combination crusher handle wet or sticky materials?
A: Yes, it handles wet and sticky materials very well. Unlike jaw or cone crushers, the combination crusher has no clogging issues because it uses a chain curtain and an adjustable hammer design.

Q: What is the difference between a combination crusher and a hammer crusher?
A: A combination crusher has both a rotor and a special adjustable breaker plate, plus a cascading material flow. It produces a more uniform cubic shape, has lower wear costs, and works better with wet feed compared to a standard hammer crusher.

Q: What output size can I expect from a combination crusher?
A: You can adjust the output size from 0-5mm up to 20-40mm by changing the gap between the hammer and the breaker plate. Many users use it to produce fine sand (under 5mm) directly in one pass.

Q: What spare parts wear out fastest on a combination crusher?
A: The hammers (or blow bars) and the impact plates wear the fastest. We use high-chromium or alloy steel hammers that typically last 300-600 hours depending on the material hardness.

Q: How do I know which combination crusher model fits my production line?
A: You need to tell us your target capacity (tons per hour), maximum feed size, and moisture content. For example, if you need 50 tph of final sand from wet limestone under 100mm feed size, we will recommend the PFL-1500 model.

Q: Is a combination crusher energy efficient?
A: Yes, it is very efficient. It uses a single motor and a simple rotor design. For making sand, it consumes about 30-40% less electricity compared to a cone crusher plus a vertical shaft impact (VSI) crusher combination.

Q: Can I crush river pebble or granite in a combination crusher?
A: No, a combination crusher is not suitable for hard rocks like river pebble, granite, or basalt. Those materials will quickly destroy the hammers. Use a jaw crusher and cone crusher for hard stones instead.

Q: How often do I need to replace the hammers?
A: For medium-hard limestone, hammers usually last 400-600 working hours. You should check the wear pattern every 8 hours of operation. When the hammer head becomes rounded or loses more than 30% of its weight, replace or flip it.

Q: Do you offer a mobile combination crusher?
A: Yes, we can mount the combination crusher on a steel frame with wheels or on a track chassis. A mobile unit is great for multiple job sites or brick factories with limited space.