| Thayer Product Family |
| MSF |
| Approximate Feed Rate Range lbs/hr (@ 50 lb/ft³) |
| 0.25 – 60 |
| Standard Hopper Liquid Capacity (ft³) |
| 1.0 – 3.0 |
| Trough Liquid Capacity (ft³) |
| 0.5 |
| Available Screws Diameter (in) |
| 0.375″ – 0.5″ – 0.625″ – 1″ – 1.5″ – 2″ |
| Examples of Materials Handled |
| CANDLE WAX, RICE POWDER, SALT, FLOUR, LITHIUM ION POWDER, GROUND BIOMASS, VITAMIN ADDITIVE, SEASONING |

Explore MSF volumetric screw feeders with our brochure.
A low-volume compact feeder designed for fast, easy clean out.
The Thayer Scale MSF Volumetric Feeder is our economical traditional design for low-volume feeding. The Thayer Scale Model MSF Feeder completely disassembles without tools in less than one minute for fast, easy and thorough clean out, eliminating contamination challenges associated with frequent material changes.
The unique combination of vertical-wall supply hopper and preconditioning trough/chamber containing a special horizontal agitator (optional), delivers superior performance and reliability. The agitator de-aerates the material to a uniform density and breaks down bridges and rat holes. A wide section of agitator allows a great cross-section of materials to be fed very accurately.
The Model MSF Volumetric Feeder is built-to-survive with heavy-gauge 304 stainless steel as a standard offering.
Industry Applications
Suitable for low-volume feeding of pellets and powders.
- Food & Beverage: Rice Powder, Salt, Flour, Seasoning, Vitamin Additive
- Energy & Battery: Lithium Ion Powder
- Biomass & Biofuel: Ground Biomass
- Consumer Goods: Candle Wax
Get a Quote for a MSF Volumetric Screw Feeder
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.
🌀 “V-Trough” Hopper & Agitator
An independently driven agitator maintains optimum material conditioning while screw speed can vary to control flow rate. The trough and agitator combination effectively de-aerates and contain 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).
Key Benefits
of Thayer Scale’s Volumetric Screw Feeders
🎯 Extended Operating Range
Feeds from a few grams per minutes up to 10s of 1000s of pounds/hour.
🧼 Easy To Clean
Breaks down completely in under one minute for quick, thorough sanitation. Built from durable stainless steel for long-term, trouble-free performance.
🧱 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.
📐 Flexible Mounting Options
Supports floor-mounted, rotating, stationary, wheeled, forklift-based, or suspended installations.

