| THAYER Model No. |
| MD |
| Belt Width (inches) |
| 18″, 24″, 30″, 36″, 42″, 48″, 54″ |
| Approx. Flow Rate Range (STPH) |
| 2 – 400 |
| Material Density Range (lbs/ft³) |
| 10 – 200 |
| Maximum Material Particle Size (Inches) |
| 0.25 – 4 |
| Scale Loading (lbs/ft) |
| 30 – 270 |
| Load Cell Type |
| Strain Gauge / LVDT |
| Typical Materials Handled |
| SOY BEANS, COAL, SAND, CLAY, LIMESTONE, BENTONITE, CORN, WET DDG, SINTER, FIBERGLASS, IRON ORE, NICKEL SHOT, SLUDGE, TiO2, CEMENT |
Model MD & MDL Heavy Industry Weigh Belt Feeder
Meet Thayer Scale’s rugged weigh belt feeder originally designed for cement handling.
Originally developed in the 1970s for the cement industry, Thayer Scale’s Model MD & MDL are extremely rugged weigh belt feeders for use across heavy industry applications. The Model MD and MDL are proven to withstand extreme environmental conditions including abrasive dusts, corrosive fumes, wide temperature fluctuations and vibrations – without any detrimental effects to performance or accuracy. With the Model MD being able to handle flow rates between 2 – 400 STPH and the MDL being specifically designed for the lower end of that range, Thayer Scale can offer a rugged weigh belt option ideally suited for any flow rate requirement.
The Model MD and MDL are suitable for heavy, compacted, high bulk density materials of all particle sizes. They are the ideal feeders for medium to high feed rates for both general industrial and large-scale applications.
The Model MD and MDL can be used to gravimetrically totalize and measure the flow of material, or with closed loop controls as a feeder to regulate the flow to a constant or varying set point.
Industry Applications
Suitable for heavy and rugged weigh belt feeding.
- Cement: Limestone, Shale, Clay, Oyster Shells, Coral, Iron & more
- Steel: Iron Ore Pellets, Limestone, Dolomite, Coke, Coal
- Ethanol: Whole Corn, Ground Corn, Starch, Germ, Soybean
- Power & Energy: Coal, Gypsum, Limestone, Fly Ash
- Aggregate & Mining: Iron Ore, Copper Ore, Zinc Ore
- Fertilizer: Potash, Phosphate, Ammonium Nitrate Prills, Diammonium Phosphate
- Aluminium: Petroleum Coke, Bauxite, Alumina
Get a Quote for Thayer Scale’s Model MD or MDL Heavy Industry Weigh Feeder
Core Technologies
⚖️ FMSS™ Force Measurement Suspension System
Our patented FMSS™ technology is able to discriminate between net load measurement forces and all other undesirable extraneous forces, making load cells virtually immune to the detrimental effects of vibration or shock loads.
🌀 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.
⚖️ External Scale Placement Option
Weighing system can be located outside the material flow channel for protection, easy cleaning, and immunity to tare accumulation.
📐 Custom Engineered Inlet Dimensions
Ensures uniform material withdrawal from storage bins. Designed for maximum efficiency and low energy consumption.
🔧 Optional Automated Test Weight Positioning System
Automatic test weight positioning mechanically exercises the scale for safe, verifiable and remote calibration, minimizing downtime.
🔩Individually-Mounted Idlers
Individually removable idlers simplify maintenance and adjustments, without the need to first empty material from the conveyor.
🛡️Full-Length Adjustable Skirt Boards
Tapered and flared for product containment, preventing spillage and particle jamming.
Key Benefits
of Thayer Scale’s Heavy Duty Weigh Belt Feeders
🧱 Built to Survive
Explore our range of heavy duty industry weigh belt feeders first designed for steel mill service to feed flux materials (limestone, mill scale, dolomite, iron, ore pellets, fluorspar and coke).
💰 Low Cost of Ownership
Durable construction and optional totally enclosed designs reduce housekeeping, maintenance and extend service life, lowering total operational costs.
🎯 Consistent, High Weighing Accuracy
Designed to measure only the true material load, independent of belt tension, load position, idler friction or material build-up, ensuring consistent and precise readings under extreme conditions.
📐 Flexible Configurations
Supports open or enclosed construction, inclined or declined conveyance, and space-constrained installations.
🔧 Customizable Solutions
Custom design options available for hazardous environments, corrosive or abrasive materials, dust control and scavenger systems to minimize material build up and product loss.
