Belt weigher 2RF-6ALA

Product Overview
Thayer Scale 2RF-6ALA is a 2-idler conveyor belt scale engineered for light-loading, low-density dry bulk applications (≤ 10 lb/ft) where repeatable accuracy is required (typical 0.25%). The design couples a mass-counterbalanced weigh bridge with Thayer Scale’s FMSS™ technology and a secondary lever system to minimize the influence of extraneous forces, shocks and lateral loads while preserving stable net-load measurement and precise totalization.

Technical table

• Model: Thayer Scale 2RF-6ALA
• No. of weigh idlers: 2
• Belt width (W): 24–72 in
• Idler spacing (S): 42–60 in
• Minimum load: 4.2 lbs/ft
• Maximum loading: 800 lbs per idler
• Mass counter-balanced weigh bridge: YES
• Belt speed: 10–1000 ft/min
• Accuracy (design rate): 0.25%
• Accuracy (3:1 range): 0.50%
• Load cell support: LVDT (LC-137) or optional LC-174 strain gauge

Industry Applications

• Forest products: wood chips, sawdust
• Tobacco: flakes, shredded leaf
• Food & agriculture: grains, rice flakes, cereals
• Chemicals: light industrial powders and specialty chemicals

Key Benefits

• Accurate measurement for light loading: consistent weighing of low-density flows (under 10 lb/ft) with typical 0.25% accuracy.
• Net-load discrimination: FMSS™ mass-counterbalanced design reduces the effect of extraneous forces for truer net measurements.
• Resistance to shocks and lateral forces: secondary lever and RF flexure design maintain stability under shock and side loads; tolerates overloads >1,000 lbs without loss of accuracy.
• Reliable totalization: precision belt speed sensing with a non-fouling speed wheel provides stable speed signals for accurate mass totalization.
• Serviceable in the field: field-adjustable tare, accessible load cell, and mechanical test weight system simplify calibration and verification.
• High load cell utilization: FMSS design delivers >80% load cell utilization for improved signal quality.

Core Technologies

• Force Measurement Suspension System (FMSS™): isolates net load from extraneous forces and reduces vibration effects on load cells.
• Rocking flexure suspension weighbridge: minimizes lateral-force errors and hysteresis for consistent readings in approach or approach/retreat configurations.
• Secondary lever system: mechanically counterbalances tare loads (up to 200× net load), reduces idler deflection, and self-aligns under structural distortion.
• Weighbridge flexural elements: stainless-steel aircraft cables transmit pure tension while allowing lateral movement to accommodate conveyor twist.
• Load cell options: LC-137 (LVDT) or LC-174 (strain gauge) to meet performance and certification needs.

Specifications

• Model: 2RF-6ALA
• Weigh idlers: 2
• Belt width (W): 24–72 in
• Idler spacing (S): 42–60 in
• Minimum load: 4.2 lbs/ft
• Maximum loading: 800 lbs per idler
• Mass counter-balanced weigh bridge: yes
• Belt speed: 10–1000 ft/min
• Accuracy (design rate): 0.25%
• Accuracy (3:1 range): 0.50%
• Load cell support: LVDT (LC-137) or optional LC-174 strain gauge
• Designed for light-density dry bulk solids (≤ 10 lb/ft)