Roller Screen
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Vibration-free Operation, Low Noise & Low Wear: No vibration excitation structure, minimal machine shake with no damage to plant foundation, much lower noise than vibrating screens and stable long-term operation.
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Self-cleaning Anti-clogging Design for Wet & Sticky Materials: Rotary discs continuously scrape sticky mud, realizing non-clog continuous screening for high-humidity loam and weathered ore, solving blockage issues of traditional screening machines.
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Heavy Wear-resistant Structure & Super Large Throughput: Rollers and discs are made of wear-resistant alloy, single machine capacity ranges 500-2000t/h, supporting heavy feeding of large raw ore and construction waste.
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Mesh-free Design to Cut Maintenance Cost: No fragile woven screen mesh, only wear discs need regular replacement. Independent drive for each roller allows single-shaft maintenance without full machine shutdown.
1. Product Overview
Roller Screen, also known as disc roller separator, is a heavy-duty non-vibration coarse screening machine. Its screening surface consists of multiple parallel roller shafts fitted with shaped discs rotating synchronously in the same direction. It classifies materials via gaps between rollers without screen mesh, equipped with dynamic self-cleaning structure. It is specially designed for high-moisture, sticky and muddy bulk materials for high-capacity mud-stone separation and ore pre-screening. Built with heavy steel structure, it fits harsh working conditions of mining, coal and construction waste production lines.
2. Detailed Description
Motors matched with reducers drive each roller shaft to rotate uniformly in the same direction. Staggered polygonal discs convey materials forward smoothly. Gaps between rollers form dynamic screening channels, fine mud and aggregates fall through gaps, while large rocks are pushed to discharge outlets by discs. Rotating discs with scrapers realize automatic cleaning to avoid clogging of sticky mud. Variable frequency speed regulation is optional to adjust conveying speed and screening efficiency flexibly.
3. Materials
Raw coal, coke, limestone, weathered muddy ore, mud-stone mixture, construction waste, muck, river pebble, clay, high-moisture aggregate, solid waste broken stone and other lumpy, sticky & wet coarse materials.
4. Why Choose Us
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Multi-roller synchronous rolling screening, conveying & grading all-in-one: Multiple special-shaped rollers rotate synchronously, materials move forward with roller rotation while coarse and fine materials separate automatically. Integrates feeding, conveying and screening for seamless connection with crushers and belt conveyors.
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Wear-resistant anti-block rollers, no blinding for wet sticky coal & clay: Thickened wear-resistant toothed/spiral rollers with self-cleaning gaps prevent adhesion of wet mud and clay. Blocks and sundries roll over smoothly to avoid blockage shutdowns.
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High throughput primary screening, perfect for lump bulk materials: Wide roller spacing creates ample passage for lump coal, river stone and construction waste. Large-volume primary separation removes fine mud upfront to reduce crusher workload.
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Modular assembled frame, easy disassembly, transportation & on-site retrofit: Segmented modular structure enables split transport without heavy lifting equipment. Heavy channel steel frame supports customized roller sections, quick installation for mines, open yards and crushing stations.
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Low-speed stable operation with low impact, less dust & equipment wear: Low-speed mechanical rotation without high-frequency vibration reduces material impact and dust emission. Gentle force lowers abrasion on frame and bearings, extending service life of matched conveyors and crushers.
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Centralized drive with easy maintenance, low operation cost under heavy load: Single/dual motor centralized chain drive with exposed easy-access transmission parts. Long-life wear-resistant roller sleeves only require regular greasing, delivering superior value for long-term heavy mine production.
5. Specifications & Technical Data
| English Item | Standard Spec |
| Sieving Efficiency | 75%~92% |
| Driving Mode | Independent Reducer Drive per Shaft |
| Speed Regulation | Variable Frequency Speed Control |
| Screen Disc Material | High Chrome Wear-resistant Alloy |
| Bearing Type | Self-aligning Roller Bearing |
| Operating Noise | ≤70dB |
| Dust-proof Structure | Fully Enclosed Housing |
| Anti-jam Design | Staggered Plum Blossom Discs, Self-cleaning |
| Power Supply | 380V/50Hz |
| Warranty Period | 1-year machine, 6-month wear parts |
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