Vibratory Tray Feeders

Gentle, precise feeding for fragile materials, including irregular and larger particles.

Thayer Scale’s vibratory loss-in-weight feeders are engineered to assure uniform, non-pulsating flow of difficult-to-discharge fine cohesive powders and fragile interlocking particles of irregular shapes.

All of our vibratory models offer specialized vibratory tray designs, integrated material agitation options and a wide range of proprietary feed algorithms to ensure reliable feeding of even the most difficult to feed materials.

Discover Thayer Scale’s Vibratory Loss-In-Weight Feeders

COMPACT

Precision dosing performance, designed to fit where others can’t.

GENERAL PURPOSE

The broadest material volume range—enabled by Thayer Scale’s proven cable suspension architecture.

Core Technologies

🌀 Spiralator® Hopper Agitation System
Our slow-speed Spiralator® prevents compaction by continuously lifting dry solids along the hopper wall. It’s ideal for gently conditioning non-compacting materials.

📦 Two Feed Tray Designs
Stainless Steel Tray: For free-flowing pellets, granules, flakes, or fibers. Elastomer Membrane Tray: For cohesive or adhesive powders requiring extra vibration energy to ensure uniform flow.

⚖️ Fully Mass-Counterbalanced Platform or Cable Scale
Maximizes load cell utilization by measuring only the live load and isolating the material weight signal from vibration, shock, and external forces.

🧩 Load Cell Options for Any Application
Strain Gauge Load Cell: Rugged and accurate, rated 25–500 lbs. with 300% overload protection. LVDT Load Cell: High-resolution, tension-style design ideal for light loading and fine-feed applications and offering unparalleled overload protection at 1000% of rated output.

🧰 Built-In Automatic Test Weight Lifter (ATWL)
Built-in calibration system applies a known test load at the press of a button. Enables quick, verifiable calibration checks without halting production or manual intervention.

Key Benefits

of Thayer Scale’s Vibratory Loss-In-Weight Feeders

🌀 Gentle Material Handling
Vibrating pan feeder and unique material conditioning system will not degrade or alter the appearance of delicate or fragile materials – including irregular and larger particles.

🎯 Extended Operating Range
Feeds from a few grams per minutes up to over 60,000 pounds/hour.

🧱 Built to Survive
Unlike lightweight designs made for short-term convenience or scale sensitivity, our feeders are engineered for long-term durability, without compromising accuracy.

🔄 Integrated Material Agitation Options
Prevents flow issues like bridging, funnel flow, adhesion, and cohesion for consistent material feeding.

📐 Flexible Mounting Options
Supports floor-mounted, rotating, stationary, wheeled, forklift-based, or suspended installations.

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How Thayer Scale’s Loss-In-Weight Vibratory Feeder Technology Works

A slowly rotating, non-agitating, conical wire-spiral within the hopper counteracts the material’s tendency to pack under its own weight by virtue of its “lifting” action throughout the stored material. The resulting reduction in consolidation pressures throughout the material mass assures that the stored material will not develop sufficient strength to form arches that can cause erratic flow or complete flow stoppage. The combination of this unique material conditioning system and a vibrating pan feeder assures that the material will be handled reliably and gently throughout the entire feeding range.