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  • company name:Zhengzhou Yufeng Heavy Machinery Co.,Ltd
  • factory add: North Dongfang Road, Mazhai Industrial Park, Zhengzhou City, Henan, China
  • Tel: +86 371 60395600
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Roller crusher

Roller Crushers are compression type crushers, and were once widely used in mining. They have, within the last 10 or so years, fallen into dis-favor among mining and processing companies. The probable reason is because the large mines require very large crushed product output with minimal cost, makes the roll crusher uncompetitive. The Roller crushers are not nearly as productive as cone crushers, with respect to volume, and they do have a little higher maintenance associated with them. Roller crushers do, however, give a very close product size distribution, and if the ore is not too abrasive, they do not have high maintenance costs. Roll crusher is mainly used for the crushing of medium or lower-hardness mines and rocks with medium or lower rigidity in mine selection, chemicals, cement and building materials industrial production.
Roller crushers have a theoretical maximum reduction ratio of 4:1. If a 2 inch particle is fed to the roll crusher the absolute smallest size one could expect from the crusher is 1/2 inch. Roller crushers will only crush material down to a minimum particle size of about 10 Mesh (2 mm). A roll crusher crushes using compression, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product desired, with the realization that the largest feed particle can only be 4 times the gap dimension.
The particles are drawn into the gap between the rolls by their rotating motion and a friction angle formed between the rolls and the particle, called the nip angle. The two rolls force the particle between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls. Some major advantages of Roller crushers are they give a very fine product size distribution and they produce very little dust or fines. Rolls crushers are effectively used in minerals crushing where the ores are not too abrasive and they are also used in smaller scale production mining of more abrasive metal ores, such as gold. Coal is probably the largest user of Roller crushers, currently, though. Coal plants will use Roller crushers, either single roll or double roll, as primary crushers, reducing the ROM coal. Usually, these crushers will have teeth or raised forms on the face of the roll. (Roller crushers used for minerals and metal ores have smooth faced rolls.)

Technical parameters of :

Type 
Model
Material-in size(mm)
Material-out size(mm)
Capacity(m3/h)
 Power
(kw)
Overall dimensions(mm)
Weight
(kg)
Force double roller crusher
2PGQ 610×400
〈36
2-9
3-9
22
1785×2365×1415
3800
2PGQ 750×500
〈40
2-10
5-12
18.5×2
2720×2700×1400
10800
2PGQ 750×700
〈40
2-10
6-16
22×2
2800×3987×1705
12200
2PGQ 900×500
〈40
2-10
9-30
22×2
2750×1790×2065
15000
2PGQ 900×900
〈40
2-10
11-45
~37×2
2750×2180×2065
16800
2PGQ 900×1200
〈40
3-10
15-60
~55×2
2750×2480×2065
20800
2PGY 1200×1000
〈40
3-12
10-50
~55×2
3690×3430×2700
46820
2PGY 1200×1200
〈40
3-12
18-68
~75×2
3690×3630×2700
48600
Four-roller crusher
4PG750×500
30-60
2-10
3-10
18.5+11/17
2760×3585×2650
19200
4PG900×700
40-100
2-10
16-20
30+12/24
3150×4175×3147
28700
4PG900×900
40-100
2-10
20-25
45×2
3150×2650×3147
31386
4PGY1200×1000
20-40
3-10
43-68
75+40/55
5410×5600×3600
67000
Double-roller crusher
2PGC450×500
100-200
25-100
12-32
<11
2260×2206×766
3100
2PGC600×750
300-600
50-125
50-75
<22
3265×2850×1310
7400
2PGC900×900
<800
75-150
60-110
<30
3945×3405×1895
13670
2PGC920×1200
<800
40-100
90-150
<75
3848×3480×1394
16730
2PGC1200×1500
<1000
-100
150-250
2*55
8010×4050×2050
52000


Yu Feng Heavy Industry is a leading domestic manufacturer of Roller crusher manufacturer,sales to many countries and regions around the world.Please contact our Roller crusher department,in order to know more information about Roller crusher.
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