Overview
The FU Type Conveyor is a chain-driven bulk material handling system, primarily used for horizontal or mildly inclined (up to 15°) transportation. Its modular design and enclosed structure make it ideal for dusty or fragile materials like cement, fly ash, or grains. Developed as an upgrade to traditional screw conveyors, it offers higher efficiency (up to 90m³/h) with lower energy consumption. The conveyor's standardized components allow easy customization for industries ranging from construction to food processing. Its popularity in B2B markets stems from reliability in continuous operation, with some units lasting over 10 years with proper maintenance.
Structure and Working Principle
The conveyor consists of a drive unit, tensioning device, conveyor chain with flights, and a sealed trough. The chain-and-flight assembly moves materials through the trough, with the flights acting as pushing elements. The fully welded steel casing prevents material leakage and dust emission, complying with modern environmental standards. Power is transmitted via a reduction gear motor, typically with a 4–15 kW rating depending on capacity. The system operates at low speeds (0.13–0.67 m/s) to minimize wear. Unlike belt conveyors, the FU Type uses no rolling parts in contact with materials, reducing maintenance for abrasive loads.
Key Features
Dust containment is a standout feature, with the enclosed design achieving <50mg/m³ dust emission. The conveyor's chain design allows bidirectional operation, while the absence of intermediate bearings eliminates common failure points. Noise levels are notably low (<75 dB) compared to pneumatic systems. Energy efficiency is superior to screw conveyors, with power consumption reduced by 30–40% for equivalent capacity. The system can handle materials up to 250°C (with heat-resistant chains) and accommodates lump sizes up to 100mm. Optional stainless steel construction is available for corrosive or food-grade applications.
Application Areas
In cement plants, FU conveyors transport clinker, raw meal, and additives. Chemical industries use them for polymer pellets and powdered reagents, while grain processing plants move wheat, rice, and feed ingredients. The food industry employs stainless steel variants for sugar, flour, and spices. Mining operations utilize heavy-duty models for minerals and ores. A growing application is waste-to-energy plants, where they handle biomass and refuse-derived fuel. The conveyor's gentle handling makes it suitable for fragile materials like activated carbon or catalyst beads in petrochemical facilities.
Maintenance and Precautions
Monthly inspections should check chain stretch (replace if elongation exceeds 2%), flight wear, and sprocket tooth condition. Lubrication intervals vary from 500–2,000 hours based on load. Always keep inlet hoppers properly aligned to avoid uneven chain wear. Operational precautions include avoiding metallic contaminants that could jam the chain and ensuring material size stays below 10% of trough height. For abrasive materials like cement, hardened alloy chains extend service life. In freezing environments, trough heaters may be necessary to prevent material buildup.
B2B Procurement Guide
Key specifications to confirm include throughput (m³/h), material characteristics (abrasiveness, temperature, moisture content), and required incline angle. Leading manufacturers offer CAD drawings for integration planning. Delivery times average 4–8 weeks for standard models, longer for customized solutions. Cost-saving options include selecting carbon steel for non-corrosive materials and standard chain types for moderate-duty applications. For food/pharma use, request documentation of material certifications (e.g., FDA, EC1935/2004). Consider after-sales support—reputable suppliers provide spare parts inventories and technical manuals in English.
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