Thayer Scale offers a comprehensive range of weigh belt feeders engineered for continuous, precise material flow measurement and control. These feeders are designed to handle a wide spectrum of bulk solids, from lightweight powders and snack foods to dense minerals and industrial raw materials.

Each feeder is built around a gravimetric principle, using belt-mounted load sensing to measure material flow in real time. Systems can operate in open-loop mode for totalizing flow or closed-loop mode to regulate feed rates to a setpoint. This flexibility makes them suitable for both process control and inventory management.

Thayer Scale’s lineup includes models for light, medium, and heavy-duty applications. Feed rates range from as low as 30 pounds per hour to over 3,000 tons per hour, with belt widths from 10 to 96 inches and lengths up to 60 feet

Light Industry Feeders

Light-duty weigh belt feeders are optimized for low to medium capacity applications. These models are ideal for handling friable, dusty, or irregularly shaped materials such as snack foods, powders, and additives. Feed rates typically range from 0.025 to 35 short tons per hour, with particle sizes from 325 mesh to 1 inch

Key features include:

• Continuous accuracy within ±0.5%
• Compact footprint and low maintenance design
• Configurable open or enclosed construction
• Easy belt removal and cleaning for sanitary environments

Models like the MWF-101, MWF-OS, and HWF are commonly used in food processing, plastics, and specialty chemical applications.

Heavy Industry Feeders

Heavy-duty weigh belt feeders are built for rugged environments and high-capacity operations. These feeders are used in industries such as mining, cement, steel, and biomass. Materials handled include coal, limestone, iron ore, wood fiber, and nickel shot, with densities ranging from 1 to 150 pounds per cubic foot

Heavy-duty models feature:

• External load transducers for reduced contamination
• Weigh bridges resistant to tare build-up and overloads
• Modular construction for easy maintenance and future expansion
• Accuracy up to ±0.25% across a wide range of materials

Thayer Scale’s heavy-duty feeders, including the MD, MDH, MH, and MDL series, are known for their long-term reliability and adaptability to complex plant layouts.

Customization and Integration

Thayer Scale provides tailored solutions to meet specific process requirements. Options include:

• Automatic calibration systems
• Sanitary finishes in 304 or 316 stainless steel
• Inclined or declined belt configurations
• Hazardous location compliance

Standard designs can be modified to fit space constraints or integrated with existing control systems. This ensures seamless operation and minimal disruption during installation.