Double Roller Crusher
Double roller crusher is mainly used to crush material below the medium hardness, such as clinker mineral, coke, slag, shale, limestone and so on. It is the most suitable for small and medium non-metal mines and chemical industries to undergo secondary and fine crushing. It has the following features: simple structure, reliable performance, less flour.
Category: Crushing & Milling Equipment
Double Roller Details
Working Principle
The particles are drawn into the gap between the rollers by their rotating motion and a friction angle formed between the rollers and the particle, called the nip angle. The two rollers force the particle between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rollers.
Main Features
- The structure is simple and reasonable; the operating cost is moderate.
- High broken rate, saving energy, less wear and tear and easy maintenance.
- Have the function of fine crushing, the best choice for glass products.
- Best for crushing medium hard and especially hard materials.
- Excellent product grain size, cube shape, very few is pin sheet.
- Easy operating and maintaining.
Technical Data
| Model | Roller Diameter (mm) | Max feeding size (mm) | Discharging size (mm) | Capacity (t/h) | Power (KW) | Rotation speed (r/min) | Weight (t) |
| PGC400 | Φ400 | <25 | 2-10 | 5-10 | 11*2 | 90 | 1.1 |
| PGC600 | Φ600 | <55 | 2-10 | 15-40 | 18.5*2 | 90 | 5.2 |
| PGC800 | Φ800 | <80 | 3-10 | 18-75 | 22*2 | 82 | 7.3 |
| PGC1000 | Φ1000 | <100 | 3-10 | 32-110 | 37*2 | 76 | 11.5 |
| PGC1200 | Φ1200 | <120 | 5-10 | 48-180 | 45*2 | 60 | 17.2 |
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Frequently Asked Questions
Q: What is the smallest gold particle size this concentrator can recover?
A: It can recover gold particles as fine as 0.004mm, with a recovery rate of approximately 97% for this size fraction.
Q: How often do I need to clean out the concentrate?
A: The cleaning-up cycle is typically 1–4 hours for vein gold and 2–6 hours for placer gold, depending on the grade of your ore.
Q: Does this machine require chemicals?
A: No. The centrifugal concentrator uses only water and electricity. It is a completely physical separation process with zero chemical pollution.
Q: Can I use this concentrator for tailings re-processing?
A: Yes. It is widely used to recover fine gold from old tailings, grinding circuit discharges, and flotation concentrates where fine gold has not been fully captured.
Why Choose Hengcheng for Your Gold Recovery Project?
With over 25 years of experience in mineral processing equipment manufacturing, we specialize in designing customized gravity separation circuits for alluvial gold, rock gold, and complex ores. Furthermore, we provide a full package of services—from engineering consultation and ore testing to on-site installation, commissioning, and personal training. Therefore, you can rely on us from the very beginning of your project to the final operation.
