Double Roll Crusher

Applied Materials:
River pebbles, calcite, quartz, marble, pebbles, bentonite, iron ore, bluestone, rocks, slag, limestone, weathered sand, diabase, granite, basalt, etc.

Applications:
Cement, chemical industry, electric power, mining, metallurgy, building materials, refractories, coal mines, etc.

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Description of Double roll crusher

Double 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. Roll 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. Roll crushers will only crush material down to a minimum particle size of about 10 Mesh (2 mm). Some major advantages of roll 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 roll crushers, currently, though. Coal plants will use roll 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. (Roll crushers used for minerals and metal ores have smooth faced rolls.)

Working principle of Double roll crusher

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.

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Specification

Technical data of Double smooth roll crusher

Model	Feeding size (mm)	Discharge size (mm)	Capacity (t/h)	Power (kw)	Weight (t)	Overall size (LxWxH)(mm)
2PG400×250	<35	≤2-8	2-10	2×5.5	1.3	2150×980×800
2PG400×400	<35	≤2-8	5-12	2×7.5	2.3	2360×1100×800
2PG610×400	<65	≤2-20	5-20	2×15	3.9	3510×1420×1030
2PG750×500	<75	≤2-25	10-40	2×18.5	9.5	4210×1630×1260
2PG800×600	<80	≤2-25	12-45	2×22	10.8	4505×1780×1320
2PG1000×700	<100	≤3-30	20-65	2×30	14.9	5310×2175×1595
2PG1200×800	<120	≤3-35	35-80	2×37	25.5	6290×2270×1870
2PG1500×800	<130	≤3-45	50-120	2×75	33.7	7460×2410×2290
2PG1600×1000	<150	≤3-50	60-140	2×90	41.2	8220×2680×2475

Technical data of Double teeth roll crusher

Model	Max. Feeding size (mm)	Discharge size (mm)	Capacity (t/h)	Power(kw)	Weight (kg)	Overall size (L×W×H)(mm)
2PGC400×250	80-100	10-50	7-15	5.5×2	1300	2400×950×650
2PGC400×400	180-260	10-50	15-30	7.5×2	1800	2400×1250×650
2PGC450×500	300-500	15-100	30-60	7.5×2	3800	2660×1900×826
2PGC600×750	300-600	20-120	60-100	11×2	7200	2780×3065×1310
2PGC600×900	300-600	30-150	80-120	18.5×2	7800	4500×1900×1350
2PGC900×900	600-900	30-200	150-200	22×2	13500	4100×2200×1550
2PGC900×1200	700-950	30-200	180-220	37×2	18800	5823×2420×1635
2PGC1200×1500	800-1050	30-200	200-300	55×2	52000	7010×4500×2050

Note: This is just reference. Please contact us to get price and details.