ERTONG MAKE

Overview The Bearingless Screw Conveyor is engineered to eliminate material blockage in sticky, fibrous, or semi-solid substance handling. By removing traditional intermediate hanger bearings, this design ensures uninterrupted flow for challenging materials like dewatered sludge, food paste, and polymer flakes. Ideal for long-distance horizontal conveying, it serves wastewater treatment plants, food processing facilities, and biomass handling operations with GB/T-compliant reliability. Key Features

1. Zero Blockage Guarantee
   • Absence of central bearings prevents material buildup, achieving >99% uptime in sticky material applications.
   • Reinforced spiral blades (10–30 mm thickness) withstand torque up to 5,000 N·m.
2. Extended Reach
   • Single-section lengths up to 40 meters without intermediate supports.
   • Modular design allows incremental extensions up to 120 meters.
3. Low Maintenance
   • Sealed-for-life bearings at drive and tail sections (IP66 rating).
   • Wear-resistant blade edges (hardness ≥HRC 55) provide 20,000+ hour service life.

Technical Specifications

Parameter	Specification
Screw Diameter	150–800 mm (standard); customized up to 1,200 mm
Rotational Speed	10–120 rpm (variable frequency drive control)
Capacity	2–300 m³/h (material-dependent)
Max Conveying Length	40 m (single unit), 120 m (modular)
Power Range	1.5–75 kW (energy recovery options available)
Material Temperature	-20°C to +200°C (high-temp models up to +450°C)
Trough Thickness	6–20 mm (carbon steel/SS304/316L)
Inclination Angle	0°–20° (standard); up to 30° with cleated blades

Design & Compliance

• Anti-Wrapping Design: Central shaftless configuration for fibrous materials (e.g., municipal sludge, crop residues).
• Alignment Precision: Laser-calibrated trough alignment (±1.5 mm/10m) prevents spiral binding.
• Compliance: Meets GB/T 10595 safety standards for screw conveyors, ISO 9001 quality systems, and NSF/3-A sanitary certifications (food-grade models).

Applications

• Wastewater Treatment: Dewatered sludge (15–35% DS) conveyance.
• Food Industry: Tomato paste, dough, and confectionery mixtures transfer.
• Biomass Energy: Agricultural waste, wood chips, and digestate handling.
• Chemical Plants: Sticky polymers, adhesives, and hygroscopic powders.

Customization Options

• Blade Enhancements: Tungsten carbide overlays, Teflon coatings, or FDA-grade finishes.
• Smart Monitoring: IoT-enabled vibration sensors predict blade wear (±5% accuracy).
• Special Configurations: U-trough, tubular, or shaftless designs for extreme materials.
• Cleaning Systems: CIP spray nozzles or retractable trough liners.

Why Choose Our Conveyor?

1. Unmatched Reliability: 50% fewer maintenance interventions vs. traditional screw conveyors.
2. Energy Efficiency: Optimized pitch-to-diameter ratio reduces power consumption by 30%.
3. Material Versatility: Handles bulk densities from 200 kg/m³ (flakes) to 2,500 kg/m³ (minerals).
4. Rapid ROI: 8–14 month payback through reduced downtime and cleaning costs.

Operational Guarantees

• Load Testing: Prototype validation at 150% rated torque for 500 hours.
• Warranty: 3-year structural warranty, 1-year wear parts coverage.
• Delivery: 10–16 weeks (standard); expedited options for sanitary models.

Contact us to configure a bearing-free screw conveyor that keeps your toughest materials flowing. Note: All specifications comply with GB/T frameworks. Customizations may require additional certification.