Huashengming Heavy Industry has fully upgraded the 4PG series four-roll crusher. It effectively solves common industry pain points of traditional medium and fine crushing equipment, including material blocking, excessive grinding, rapid wear of vulnerable parts and high operation and maintenance costs. It provides an efficient, stable and energy-saving two-stage fine crushing solution for ore processing, aggregate production and construction waste recycling lines.
Most traditional crushing equipment has fixed structures, struggling with poor versatility, excess fine powder output and unstable processing of wet, sticky or mixed hardness materials. Conventional double-roll crushers also suffer from single crushing function and low efficiency. To solve these issues, the Huashengming 4PG four-roll crusher adopts a fully customizable roller design. Users can freely combine toothed rolls and smooth rolls based on actual materials and finished size standards, enabling one machine to adapt to diverse crushing working conditions.
four roll crusher
1. Customizable Double-Layer Four-Roll Structure for Full Working Condition Adaptation
Unlike conventional four-roll crushers with fixed roller structures, the Huashengming 4PG model offers fully flexible roller combination. Customers can freely choose full toothed rolls, full smooth rolls, or upper toothed rolls paired with lower smooth rolls, customized according to material hardness, moisture, feed size and finished product requirements.
Full toothed rolls deliver high-efficiency coarse crushing for hard ore, raw coal and gangue. Full smooth rolls achieve precise fine crushing and aggregate shaping with uniform particle size and low over-grinding. The mixed roller combination supports both coarse breaking and fine shaping, perfectly suitable for mountain stones, construction waste, metal ores and various mixed materials. It realizes flexible multi-scenario production and greatly improves equipment versatility.
2. Integrated Two-Stage Crushing Simplifies Production Line and Saves Floor Space & Investment
Adopting a vertical double-layer roller structure, the equipment completes primary crushing via the upper roller group, and materials fall by gravity into the lower roller group for secondary fine crushing and shaping. Both coarse and fine crushing processes are finished in one machine without additional circulating screening and secondary conveying equipment. The compact layout saves more than 40% of workshop space, greatly reduces equipment investment and civil renovation costs, and is perfectly adaptable for both new and upgraded production lines.
3. Centrifugal Cast High-Chromium Manganese Alloy Roll Skins for Superior Durability
The core wear-resistant roll skins are integrally formed by centrifugal casting technology, featuring dense internal metal structure and uniform stable wear-resistant layers with a hardness of HRC 58-62. Its impact resistance and wear resistance are far better than ordinary sand-cast roll bodies. It suffers minimal abrasion when processing high-hardness granite, basalt, abrasive metal ores and recycled concrete materials. The extended service life of vulnerable parts reduces frequent shutdowns for replacement and surfacing repair, fundamentally cutting long-term operation and maintenance costs.
Four Roll Crusher Workshop Shooting
4. Anti-Sticking and Anti-Blocking Design Ensures Stable Production of Wet and Dry Materials
Targeting the common problems of roller adhesion and cavity blocking caused by muddy and sticky wet materials, the machine is equipped with built-in anti-sticking scrapers and widened discharge channels. It can stably process high-humidity and muddy materials without roller adhesion, cavity blockage or uneven discharging. It supports 24-hour continuous stable operation, especially suitable for open-air and rainy working sites.
5. Automatic Hydraulic Retreating Protection Ensures Safe Operation
Equipped with a full hydraulic buffer retreat system, the rollers will automatically retreat to discharge uncrushable foreign matters such as iron blocks and ultra-hard rock fragments entering the crushing cavity, and reset quickly after discharging. No manual shutdown and cleaning is required. The system fully protects core components including reducers, roller shafts and transmission structures, greatly reducing equipment failure rates and avoiding production losses caused by machine damage.
6. Hydraulic Adjustable Roller Gap for Precise Particle Size and Flexible Production
The roller gap can be adjusted with one-click hydraulic control, with a precise finished particle size range from 0.1mm to 50mm. It can produce multiple specifications of products including fine sand for mineral separation and standard construction aggregates. The single machine is compatible with metal ore fine crushing, mountain stone sand making and construction waste recycling, meeting customers’ flexible production demands for diversified orders.
7. Low-Speed Laminated Crushing Technology Reduces Over-Grinding and Energy Consumption
Adopting the low-speed high-torque laminated extrusion crushing principle instead of high-speed impact crushing, the machine breaks materials along their natural texture planes, effectively reducing the generation of ultra-fine slime and stone powder. For mineral processing lines, it improves mineral recovery rate and reduces metal loss in tailings. For aggregate production, the finished products feature low flaky particle content and qualified crushing value with superior quality. Meanwhile, the low-speed operation mode realizes significant energy-saving effects for long-term production.
Four Roll Crusher Workshop Shooting
Wide Range of Applications
This crusher applies to metal ore crushing, aggregate processing, construction waste recycling, coal, gangue and chemical material crushing. It is an ideal core device for mines, sand plants and solid waste treatment stations to boost product quality and cut production costs.
With customizable rollers, integrated dual-stage crushing, great wear resistance and anti-blocking performance, the Huashengming 4PG four-roll crusher overcomes the drawbacks of traditional crushers. It delivers personalized, high-efficiency crushing and sand making solutions for global users.
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