HWF Hygienic Weigh Feeder | What is weigh feeder

HWF Hygienic Weigh Feeder

Designed and built in accordance with the applicable provisions of NAMI (North American Meat Institute), 3-A, NSF and USDA specifications for industry segments that require compliance with food traceability rules and food safety plans.

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Model HWF Hygienic Weigh Belt Feeder

Precise rate control that meets 3A standards.

Thayer Scale’s Model HWF hygienic weigh feeder is the first weighbelt feeder designed to meet provisions of NAMI (North American Meat Institute), 3-A, NSF and USDA food safety standards. It is the ideal solution for industry segments requiring compliance with food traceability rules and food safety plans.

According to industry estimates, at least one-third of food recalls in North America may be directly related to sanitation, hygiene and material handling issues within food facilities. Finally, food processors have a food-safe material handling solution for precise metering of meat, dairy, seafood and other products.

Benefits

  • The HWF is designed and built in accordance with the applicable provisions of NAMI (North American Meat Institute), 3-A, NSF and USDA specifications for industry segments that require compliance with food traceability rules and food safety plans.
  • Designed with the HACCP approach of minimizing the risk of biological, chemical and physical hazards to help the sanitary space meet the challenges of this new era of smarter food safety initiatives.
  • Tolerate high pressure, high-temperature sanitation evolutions without calibration drift or compromising measurement sensitivity.
  • Optimizes sanitation efficacy with reduced chemical usage, water consumption and labor.
  • Brand protection.
  • Prevent loss of reputation.
  • Provide a long-term, low cost of ownership with rugged, “Built-to-Survive” construction.

Industry Applications

Suitable for hygienic food applications requiring compliance with food traceability and food safety plans.

  • IQF Vegetables
  • Red Meat Processing
  • Poultry Processing
  • RTE Food Processing
  • Seafood
  • Shredded and Grated Cheese
  • Plant-based products
  • Fresh-Cut Fruit and Vegetables…and many more.

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Core Technologies

🌀 Head Pulley Drive System
Uniform tension belt operation improves load sensitivity and optimizes measurement accuracy. Simplified conveyor construction minimizes preventative maintenance.

📏 Tail Pulley Mounted Speed Encoder
Measures the true speed of the belt via rotation of the idling pulley, belt slippage or breakage is immediately detected because the idling pulley stops rotating.

📐 Customizable Engineered Options Optional Automated Test Weight Positioning System
Automatic test weight positioning mechanically exercises the scale for safe, verifiable calibrations which can be completed automatically from a supervisory control system or manually initiated by an operator.

🛡️Full-Length Adjustable Skirts
Full length product containment skirts provide field adjustment of the gap gradient in the direction of material flow to relieve/eliminate particle jamming to maintain accurate load measurement. Available sealing strips in the inlet transition area add an extra layer of material confinement that avoids material spillage.

HWF Key Design Features

  • Stainless steel construction.
  • Material contact surfaces;
    • As smooth as RA 0.8 (micrometers) / RMS 32μ-inch.
    • Free of pits, cracks, porosities and scratches.
    • Continuous full penetration welds free of pits, cracks, and crevices and no undercut.
    • Corners ground or formed to ¼-inch (6.35 mm) radius with equal finish to adjacent surfaces.
    • Seams ground flush, as good or better than 32μ-inch.
  • No bearings.
  • Lubrication free components.
  • Cantilevered conveyor (facilitates endless belt removal / installation).
  • Gasketed joints between component subassembly components.
  • Certified hygienic (EHEDG Type EL Class I AUX) 316-SS assembly hardware featuring round heads, self-draining surfaces with a maximum roughness of 0.8 µm Ra, and blue nitrile sealing rings.
  • Scanning / Vision system detectable blue gaskets, belting, head pulley lagging, belt cleaner blade and belt supports.
  • Self-draining surfaces.
  • Major assemblies readily removable without tools and can be disassembled with basic hand tools for deep cleaning, microbiological assessment and/or pathogen testing.
HWF Gasketed joints
Gasketed joints between component subassembly components

Key Benefits

of Thayer Scale’s Weigh Belt Feeders

🧱 Built to Survive
Rugged construction built for continuous, trouble-free operation in spite of frequent high pressure, high temperature or caustic washdowns.

💰 Low Cost of Ownership
Fast, simple disassembly without tools for for deep cleaning, microbiological assessment and/or pathogen testing. Optimizes sanitation efficacy with reduced chemical usage, water consumption and labor.

🎯 Consistent, High Weighing Accuracy
Precision cut and machined weigh bridge allows perfect alignment with conveyor supports to minimize belt tension & misalignment errors, ensuring accurate and repeatable measurements.

📐 Flexible Configurations
Supports inclined or declined conveyance, and space-constrained installations.

🔧 Customizable Solutions
Custom design options available for hazardous environments, high temperatures, corrosive or abrasive materials.

Need help selecting the right weigh belt feeder model? Let us walk through your application.

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