Impact crusher is particularly used for primary and secondary crushing of medium /low-hardness material, whose compressive strength is up to 250MPa, such as raw gypsum, hard coal, limestone, shale, petrocoke and etc. for mining and pit and quarry industries.

Impact crusher is distinguished itself from others with the following advantages:

High reduction ratio from 20 up to 150, leading to simple process flow by reducing crushing stages;

Even size and cubical shape of final product owing to the increased number of crushing chamber;

High capacity and large feed size, resulting from bigger crushing chamber and higher rotor speed;

Low operating cost due to the low energy consumption and metallic wear.

Working Principle

After entering the crushing chamber of impact crusher, the feed material is struck by the high-velocity plate hammers on the rotor, and the crushed material is flying off at a tangent against the breaker plates at the other end of the crushing chamber to be crushed again. Then it is rebound to plate hammers and the above course continues repeatedly. With strike by plate hammers, impact with breaker plates and inter-collision, the material is keeping cracked and smashed. While the particle size is smaller than the gap between breaker plate and plate hammer, the sized material is discharged out of the impact crusher.

Product Features

Impact crusher mainly consists of drive unit, rotor, curtain, adustment mechanism and housing.

Drive unit
There are two options: belt drive and direct drive. When the driving power is high, a direct drive with fluid coupling is preferred.
Rotor
The rotor of ANDE impact crusher is characterized by large-diameter and robust fabricated steel cast, which guarantee high inertia required for reliable crushing performance. The rotor is further strengthened with a chrome alloy forged shaft. In some cases a double-rotor impact crusher is employed as series application of two crushers for high reduction ratio and simple process flow.
Hammer
The mass and banana shape are critical to the design of plate hammer, leading to more effective shearing and collision of feeding material and thus improved production. With the two-edge design, the plate hammer can be turned round to maximize use life. The heavy duty backing plates and hammer lock wedges stably hold plate hammers both vertically and horizontally by giving solid abutment positioning and maintaining rigidity during operation.
Curtain
According to the product size, 2 or 3 heavy curtains are provided inside the housing to form the crushing chamber. Mounted on pivoting shaft, each of them is separately adjustable. The curtain is furbished with wear liners, made of high manganese alloy steel cast with modular design.
Curtain adjustment mechanism
The gap between rotor and curtain can be adjusted to optimize performance. Presently the electrically operated hydraulic system makes the adjustment as well as frame opening much easier.

Technical Specification

Type No.	PF-1013	PF-1214	PF-1315	PF-1320
Rotor diameter(mm)	1000	1250	1300	1300
Rotor width(mm)	1300	1400	1500	2000
Feed size(mm)	250	300	350	350
Capacity(t/h)	50-120	80-180	100-250	200-350
Power(kw)	110-185	132-200	180-315	300-400
Type No.	PF-1622	PF-1822	PF-1638	PF-1838
Rotor diameter(mm)	1600	1800	1600	1800
Rotor width(mm)	2200	2200	3800	3800
Feed size(mm)	400	500	800	1000
Capacity(t/h)	400-600	500-800	800-1000	1000-1200
Power(kw)	450-560	560-710	850-1120	950-1250

Performance

Solution to crushing & sizing equipment and system

Company profileAs an innovative specialist involved in research & design, manufacture, engineering and technical service, ANDE has gained rich experience and achievement in crushing & sizing, vertical roller mill & grinding and palletizing technology, resulting in strong technical strength and market competitiveness. Through continuous innovation, ANDE is becoming a leading company of process equipment manufacture and engineering in metallurgy, power and mining.ANDE has about 150 employees, total of them about 40 with middle and senior professional titles, majored in metallurgy, mining, mechanical engineering design, mechanical process, welding, electrical, instrumentation, automation control and etc. It has strong research and design ability in metallurgy & mining equipment and system.ANDE is located in Chengdong Industrial Park, Mingshui Economic Development Zone, Zhangqiu, Jinan. Plant covers an area of 3 hectares and construction area of workshops is 13000 m2.Registered capital is RMB 50 million, and annunal turnover was RMB 150 million in 2019.Company has about 160 employees, out of which middle & senior title professionals constitute 30%.ANDE was approved with ISO9001 quality system certification in 2006.Since 2009, ANDE has introduced MPS VRM technology from Germany and CK mill technology from Japan, and engaged in design, manufacture and system integration of coal mill and BF slag mill.So far, more than 90 sets of grinding and coal injection system have been put into operation in well-known domestic and overseas metallurgical enterprises, such as Benxi Steel, Jinan Steel, Sanming Steel, Jianlong, Jingye, Southern Nonferrous, TATA Metalliks and HZL of India.Engineering Dept. was set up in 2010, dealing with engineering design and project management. Up to now, over 110 projects have been put into operation.Awarded by Science & Technology Bureau of Shandong Province with “Engineering Technology & Research Center of VRM and Coal Injection for Furnace & Kiln” in 2014.Awarded by Science & Tech Bureau of Shandong Province with “High-tech Enterprise” in 2015 & 2018.

Impact Crusher

Drive unit

Rotor

Hammer

Curtain

Curtain adjustment mechanism

Solution to crushing & sizing equipment and system