| THAYER Model No. |
| 4RF-6ARLA |
| No. of Weigh Idlers |
| 4 |
| Belt Width (W) Inches |
| 24-60 |
| Idler Spacing (S) Inches |
| 42-60 |
| Minimum Load (lbs/ft) |
| 2.1 |
| Maximum Loading (lbs/idler) |
| 525 |
| Mass Counter-Balanced Weigh Bridge |
| YES |
| Belt Speed (Ft/Min) |
| 10-1000 |
| Accuracy (%) Design Rate |
| 0.125% |
| Accuracy (%) 3:1 Range |
| 0.25% |
| Load Cell Support |
| (1) strain gauge/LVDT |
Model 4RF-6ARLA
High-Accuracy Belt Scale for Light Loading Applications
Thayer Scale’s 4RF-6ARLA conveyor belt scale is a 4-idler design specifically engineered for low-density and light loading applications (≤ 10 lb/ft) where accuracy matters (¼% typical). Featuring Thayer Scale’s mass-counterbalanced design leveraging our exclusive FMSS™ technology and unique secondary lever system, this scale ensures stable, repeatable weighing of lightweight dry bulk solids.
Industry Applications
Suitable for light loading and low density dry bulk material weighing.
- Forest Products: wood chips, sawdust
- Tobacco: flakes, shredded leaf
- Food and agriculture: grains, rice flakes, cereals
- Chemicals: Light industrial powders and chemicals
Get a Quote for Thayer Scale’s Model 4RF-6ARLA
Key Benefits
of Thayer Scale’s Model 4RF-6ARLA High-Accuracy Conveyor Belt Scale
🎯 Reliable Accuracy for Light Loading
Measures light material flows (under 10 lb/ft) with consistent, verifiable accuracy.
🎚️ Only Measures What Matters
Powered by our FMSS™ technology, our mass-counterbalanced conveyor belt scale is designed to discriminate between net load measurement and undesirable extraneous forces.
🧱 Built to Survive
Our secondary lever and RF flexure design resist shocks, lateral forces, and overloads >1,000 lbs without compromising accuracy.
🌀 Precision Belt Speed Sensing
A precision speed sensing wheel resists material buildup and delivers reliable speed signals—critical for accurate totalization.
🔧 Simplified Maintenance & Calibration
Field-adjustable tare, easy access to load cell and mechanical test weight system simplify setup, calibration and verification.
⚖️ A Winning Combination
Thayer Scale’s RF belt scales with FMSS mass-counterbalanced technology ensures better than 80% load cell utilization.
🔁 Approach-Retreat Weigh Bridge Configuration
Unlike conventional single-idler belt scales, multi-idler configurations (four-, six-, or eight-idler), our approach-retreat design enables true commercial-grade accuracy.
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.
🧱 Rocking Flexure Suspension
Our specialized weighbridge design uses a rocking flexure to maintain accuracy in both approach or approach/retreat configurations, by minimizing errors caused by lateral forces and hysteresis.
📏 Secondary Lever System
Our secondary lever system mechanically counterbalances tare loads up to 200x net load, reduces idler deflection, and self-aligns under structural distortion.
🎯 Weigh Bridge
The secondary lever system uses stainless steel aircraft cables as flexural elements which transmit pure tension forces while allowing lateral movement to accommodate conveyor twist.
🧩 Load Cell Options
Choose from LC-137 LVDT or LC-174 Strain Gauge for optimal performance across conditions and certifications.
Secondary Lever System
