Rotary Trommel Screen

Rotary Trommel Screen: Integrated Feeding & Screening Solution for Efficient Material Separation

When you're managing high-volume organic fertilizer production or municipal solid waste processing, screen blinding and clogging can halt your entire line. Henan Yuxing's YXYDSF-50 Rotary Trommel Screen eliminates this pain point with a three-in-one integrated design. This machine combines loading, screening, and conveying in a single compact unit, delivering 11kW screening power and a 3.4m conveying height. With over 20 years of fertilizer equipment expertise and deployment across 50+ countries, our product achieves drum concentricity within 2mm tolerance, preventing destructive vibration. The 1×3.5m drum handles wet, sticky materials that traditional vibrating screens cannot process, while the 3.8m feeding height with optional wheels ensures seamless integration into your existing workflow.

How It Works: The Science Behind Continuous Material Grading

Understanding the operational mechanics helps you maximize throughput and reduce downtime. The product operates on a simple yet powerful principle: centrifugal force meets gravity-driven separation.

Material enters through the 3.8×1.6m hopper equipped with a protective baffle. The 11kW main motor rotates the 1×3.5m perforated drum at a controlled speed—typically 40-60% of critical speed. This precise rotation rate ensures materials tumble and cascade rather than pinning to the drum wall.

As the drum rotates, undersized particles pass through the apertures immediately. Oversized material travels along the drum's length and discharges at the rear outlet. The integrated 5.5kW conveyor then elevates screened material to 3.4m height for downstream processing.

Our self-cleaning mechanism—featuring high-density nylon brushes—continuously clears apertures during rotation. This solves the notorious "screen blinding" issue that costs conventional systems hours of manual cleaning daily. The 0.55kW auxiliary motor powers the discharge system, completing the seamless material flow.

The drum inclination (factory-set at 3-7 degrees) accelerates material transit while maintaining separation accuracy. This angle is calibrated based on your material's moisture content and particle distribution.

Core Technical Specifications

Key Technical Properties & Quality Standards

You need equipment that survives harsh production environments while maintaining precision. Our Rotary Trommel Screen is engineered with industrial-grade materials and factory-tested reliability.

The drum shell is made of 5 mm thick high-tensile steel that is strengthened with ribs every 600 mm around the outside. You can choose screen mesh made of high-manganese steel (HRC 55+) for protection to wear and tear or SUS316 stainless steel for materials that corrode. Load tests are done on each mesh configuration for 4 to 8 hours straight.

Precision cutting keeps the variation below 2 mm, which is important for keeping the drum concentricity and avoiding premature bearing failure. Ultrasonic Testing (UT) is done on all main welds to find flaws below the surface before they are put together.

Heavy-duty roller bearings with a 50,000-hour service life are used in the drive system. During load tests, we keep an eye on the bearing temperature. If it rises more than 35°C above ambient, the calibration is re-started. Frequency Division Control (VFD) lets you change the speed of spinning based on the properties of the material without having to change the machine itself.

The way we handle quality is based on ISO9001:2015 rules and CE safety certification. Each unit comes with an NDT welding report and a plan for the first 200 hours of cleaning. The modular screen design lets you replace a segment with a bolt-on piece in less than two hours, without taking the whole thing apart.

For places that don't want dust, we have drum covers that are completely sealed and have built-in suction holes that work with baghouse or cyclone systems. In the EU and North America, this configuration meets strict rules for protecting the environment.

Proven Applications Across Demanding Industries

Real-world performance separates functional equipment from production liabilities. This machine excels in three high-stakes B2B scenarios where material variability and throughput demands are extreme.

Municipal Solid Waste Recovery: When processing mixed MSW streams, you face bagged trash, organic fractions, and recyclable inorganics in unpredictable ratios. The integrated bag-breaker feature tears open refuse bags while the drum separates organics from glass, metal, and plastics. Cities using our systems report 35% faster sorting cycles compared to manual operations.

Mining & Quarrying Operations: As a primary scalper for gold ore or aggregate, the unit handles heavy impact loads and abrasive rocks in wet-scrubbing environments. The high-manganese screen mesh resists wear from sharp stone edges, maintaining aperture accuracy through 5,000+ operational hours. Mines appreciate the continuous flow—no vibrating screen downtime for cleaning.

Industrial Composting & Topsoil Production: You've invested weeks fermenting organic waste, but plastic films, wood splinters, and stones contaminate the final product. Our product refines finished compost to horticultural-grade purity. The gentle tumbling action preserves beneficial microorganisms while removing contaminants down to 10mm size.

These scenarios highlight the machine's adaptability to varying moisture content (20-60%), bulk density fluctuations, and 24/7 continuous operation requirements.

Global Customization & Compliance Capabilities

International projects demand more than off-the-shelf equipment. You need a partner who understands diverse regulations and site-specific constraints.

Our ODM/OEM services adapt the product to your exact requirements. Voltage configurations span 220V to 480V three-phase systems. Electrical components source from Siemens or Schneider Electric based on your preference. PLC systems integrate with existing SCADA networks, featuring multi-language HMI interfaces (English, Spanish, Russian, Arabic, French).

For EU markets, we provide CE-certified units with fully enclosed safety guards and emergency stop protocols. North American clients receive CSA-compliant motors and OSHA-standard guarding. We've engineered installations for tropical high-humidity environments (Indonesia, Brazil) and freezing conditions (Russia, Canada) through material selection adjustments.

Shipping logistics leverage our 20 years of export experience. Standard units fit 40GP containers with optimized loading plans. Oversized custom configurations ship via open-top containers or modular disassembly. We've delivered to landlocked facilities in Central Asia and remote island operations in the Pacific, coordinating multimodal transport and customs clearance.

Private labeling options include your brand identity on control panels, nameplates, and technical manuals. This turnkey customization compresses your procurement cycle from 6 months to 15-20 days for standard specs.

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Comprehensive Lifecycle Support & Service Guarantee

Equipment reliability means nothing without accessible technical support. You're investing in a production asset, not a maintenance burden.

Pre-Installation Phase: Our engineers provide factory layout planning and foundation drawings tailored to your site's load-bearing capacity. We calculate material flow rates to ensure the screen integrates seamlessly with upstream feeders and downstream conveyors.

Commissioning & Training: On-site or remote video guidance covers installation, electrical hookup, and test runs. Your operators receive hands-on training in VFD adjustment, screen mesh inspection, and routine maintenance procedures. We don't leave until your team confidently runs full production cycles.

Operational Support: The 7×24 technical hotline connects you to application engineers within 2 hours. Remote diagnostics via smartphone video identify 90% of issues without site visits. Spare parts ship within 48 hours from our centralized warehouse, with common wear items (screen segments, brushes, bearings) stocked regionally.

Long-Term Optimization: After 6 months of operation, we conduct performance audits. Bearing alignment checks, drive system torque testing, and screen wear analysis ensure you maintain design throughput. We recommend lubrication every 200 operating hours and annual NDT inspections for structural welds.

This lifetime commitment stems from serving thousands of domestic and international clients across 50+ countries. Our partnership with Shandong Baolai Lailai Group (a microbial innovation leader) extends beyond equipment—we provide fermentation agents and process technology integration for complete organic fertilizer solutions.

FAQ

Q: How do you prevent screen blinding with sticky materials?

A: We integrate high-density nylon cleaning brushes that continuously clear apertures during rotation. For extremely adhesive materials (moisture >40%), we add automatic knocking devices that deliver periodic impacts to dislodge buildup.

Q: What is the optimal drum speed for maximum efficiency?

A: The critical speed depends on drum diameter. For our 1m drum, we operate at 40-60% of critical speed (approximately 18-27 RPM). This ensures proper tumbling rather than centrifugal pinning, which you can fine-tune via VFD based on material behavior.

Q: Can the screen mesh be replaced without dismantling the entire drum?

A: Yes. Our modular design uses bolt-on screen segments. A two-person crew replaces damaged sections in under 2 hours using standard hand tools—no welding or heavy lifting equipment required.

Q: How does the machine handle dust emissions?

A: Standard units include a dust cover over the drum. For regulated environments, we add integrated suction ports (150mm diameter) that connect to your existing baghouse or cyclone system, capturing 95%+ of airborne particles.

Q: What is the typical maintenance cycle for the main bearings?

A: Lubricate every 200 operating hours with lithium-based grease. Inspect drive alignment and bearing temperature every 6 months. Properly maintained bearings exceed 50,000-hour service life before replacement.

Contact Us

Ready to eliminate screening bottlenecks and boost throughput with Rotary Trommel Screen? Henan Yuxing delivers complete solutions—not just equipment.

• Request Production Line Solution – Share your material specs for customized system design

• Request Plant Layout – Receive AutoCAD drawings optimized for your site

• Download Catalog – Access full technical specifications and case studies

• Get Turnkey Quotation – Receive pricing for equipment, shipping, and installation within 24 hours

Email us at yuxing@hnyxmachinery.com to discuss your project requirements with our application engineers.