Thayer Scale manufactures durable, built-to-survive volumetric feeders suitable for a range of materials — from difficult-to-feed powders like TiO2, talc and calcium carbonate to free-flowing pellets and granules.
Our volumetric feeders deliver precise, repeatable volume control without the complexity of full gravimetric systems, making them ideal for processes where consistency, reliability and low maintenance are key. Engineered with rugged built-to-survive components for continuous operation, Thayer Scale’s volumetric feeders are trusted worldwide for smooth, trouble-free performance.
Discover Thayer Scale’s Full Range of Volumetric Feeders
PF-S POWDER FEEDERS
Volumetric feeders designed for difficult-to-feed powders.
MSF VOLUMETRIC FEEDERS
A low-volume compact feeder designed for fast, easy clean out.
MSV PELLET FEEDER
An economical compact feeder for pellets, granules and other free-flowing materials.
A Trusted Volumetric Feeder Manufacturer
Thayer Scale is a leading global manufacturer of equipment for the continuous weighing industry. Founded in 1949, we provide engineered solutions for the food, energy, building products, chemical and industrial industries. Our unyielding focus on product line specialization enables us to design and develop market-leading conveyor belt scales, weigh belt feeders, gravimetric/ loss in weight feeders and volumetric feeders.
Innovation and a relentless commitment to improvement drive everything we do. We deliver accurate, “built-to-survive” weighing systems and material handling solutions that consistently exceed customer expectations. All Thayer Scale volumetric feeders are constructed with heavy-gauge 304 stainless steel as standard, with 316 stainless steel available for applications in extremely harsh or highly corrosive environments.
Trusted by manufacturers producing end-products for the world’s leading brands, Thayer Scale is a proven partner in achieving reliable, high-performance production.
Key Benefits of Volumetric Feeders
🎯 Extended Operating Range
Feeds from a few grams per minutes up to 10s of 1000s of pounds/hour.
🧱 Built to Survive
Unlike lightweight designs made to cut costs or to try to reduce weighing errors , our feeders are engineered for long-term durability, without compromising accuracy.
🧼 Easy To Clean Options
Breaks down completely in under one minute for quick, thorough sanitation. Built from durable stainless steel for long-term, trouble-free performance.
📐 Flexible Mounting Options
Supports floor-mounted, rotating, stationary, wheeled, forklift-based, or suspended installations.
Core Technologies
🔩 Thayer Scale Differential Screw
Thayer Scale’s Differential Screw technology delivers consistent, pulse-free material flow. Custom screw lengths and designs support a wide operating range for both heavy and light-density materials.
🔄 Integrated Material Agitation Options
Prevents flow issues like bridging, funnel flow, adhesion, and cohesion for consistent material feeding.
🌀 “U-Trough” Hopper & Agitator
The first practical AND economical means for metering difficult powders. An independently driven agitator maintains optimum material conditioning while screw speed can vary to control flow rate. The U-shaped trough and agitator combination effectively de-aerates and contains powders.
🔩 Compound Flight Feed Screw
Optional patented “compound flight” feed screw can be used with most materials to downwardly extend the operating range of the feeder by a factor of 10 (typically).
Need help selecting the volumetric feeder model? Let us walk you through your application.
MSF Volumetric
Screw Feeder
Powder Feeder
Model PFM-S
Powder Feeder
Model PF-S-4
Powder Feeder
Model PF-S-6