We supply and provide application support for industrial process instrumentation product sensors and control devices. We are a manufacture's representative for a core group of well established and technologically superior industrial process instrumentation products.
 
 
 
 
 
 
 
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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 and building products, and chemical and industrial industries. Our unyielding focus on product line specialization enables us to design and develop market-leading conveyor belt scales and gravimetric feeders.

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CONVEYOR BELT SCALE SYSTEMS
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1RF-3ASG "QUARRY KING" Conveyor Belt Scales 2LLRF--4A Light Loading Conveyor Belt Scale 1RF-44SG "QUARRY KING" Conveyor Belt Scale
“Quarry King” suspension system is fabricated from slim flat metal elements (carbon steel standard, stainless steel (optional) which are precision laser cut from sheet stock and welded to and branch outwardly from a centrally positioned tubular “spine” shaft which runs axially to the conveyor, directly under the center line of the belting. These elements, two of which support the weigh idler, lie in a vertical plane so as to eliminate tare build up areas. There are no structural elements running parallel to and in close proximity with the conveyor side stringers as in conventional designs to trap and hold aggregate material spilling from the edge of the belting.
THAYER models 2LLRF-4A Conveyor Belt Scale is designed for high accuracy (1/4% typical) inventory control and totalization of applications where the lb/ft loading on the conveyor is lower than 10 lb/ft. . The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.

“Quarry King” conveyor belt scale’s suspension system from slim flat metal elements in carbon steel and stainless steel (optional) are precision laser cut from sheet stock and welded to and branch outwardly from a centrally positioned tubular “spine” shaft running axially to the conveyor directly under the center line of the belting. Rugged construction and spill-proof/jam-proof suspension design in combination of unique elements provides important advantages for neglected-maintenance operations where on-going dust build-up and spilled aggregates are known to foul conventional suspension designs. Applications include troughed belt conveyors of 14-48" belt widths (Series 1RF-3A for 14", 18", 24", 30"; Series 1RF-4A for 36", 42", 48″ belt widths) operating at speeds up to 600 fpm and inclines up to 18 degrees.
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2LLRF-6A Light Loading Conveyor Belt Scale 1RF-4A Conveyor Belt Scale 2RF-6ALA Light Loading Conveyor Belt Scale
THAYER 2LRF-6A Conveyor Belt Scale was specifically designed for high accuracy (1/4% typical) inventory control and throughput totalization of light scale loading applications such as wood chips, saw dust, tobacco and Biomass. THAYER’S Belt Scale weigh bridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counter balanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
Thayer’s 1RF-4A Belt Scale Weigh Bridge is a rugged design that accurately measures the material weight in extreme environmental conditions without constant maintenance and attention. Designed for high accuracy (1/4% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER models 2RF-6ALA Conveyor Belt Scale is designed for high accuracy (1/4% typical) inventory control and totalization of applications where the lb/ft loading on the conveyor is lower than 10 lb/ft. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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3RF-6ALA Light Loading Conveyor Belt Scale 2RF-4A Conveyor Belt Scale 4RF-6ARLA Light Loading Conveyor Belt Scale
THAYER 3RF-6ALA Belt Scale was specifically designed for high accuracy (1/4% typical) inventory control and throughput totalization of light scale loading applications such as wood chips, saw dust, grain and Biomass. THAYER’S Belt Scale weigh bridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER 2RF-4A Conveyor Belt Scale is designed for high accuracy (1/4% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.

THAYER 4RF-6ARLA Approach-Retreat Conveyor Belt Scale was specifically designed for high accuracy (1/8% typical) inventory control and throughput totalization of light scale loading applications such as wood chips, saw dust, grain and Biomass. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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6RF-6ARLA Light Loading Conveyor Belt Scale 2FS-6 Conveyor Belt Scale 3FS-6 Conveyor Belt Scale
THAYER 6RF-6ARLA Approach-Retreat Conveyor Belt Scale was specifically designed for high accuracy (1/8% typical) inventory control and throughput totalization of light scale loading applications such as wood chips, saw dust, grain and Biomass. THAYER’S Belt Scale weigh bridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER model 2RFS-6 conveyor Belt Scale is designed for high accuracy (1/4% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER models 3RFS-6 Conveyor Belt Scale (superior belt scale) is designed for high accuracy (1/4% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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3FS-8 Conveyor Belt Scale 4AR-6 NTEP Certified Conveyor Belt Scale 4RFS-6 Conveyor Belt Scale
The THAYER models 3RFS-6 & 3RFS-8 Conveyor Belt Scales are designed for high accuracy (1/4% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER NAR Belt Scales are designed to deliver stability and accuracy for verifiable accuracy applications. Installations requiring commercial certification for billing purposes. Proven in service demanding ±0.125% accuracy through independent certification. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
Thayer’s 4RFS-6 Conveyor Belt Scale is designed for high accuracy (1/8% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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6NR-6 NTEP Certified Conveyor Belt Scale 6NR-8 NTEP Certified Conveyor Belt Scale 6RFS-6 Conveyor Belt Scale
THAYER NAR Conveyor Belt Scales are designed to deliver exceptional stability and accuracy for use in applications requiring verifiable accuracy. Recommended for applications requiring commercial certification for billing purposes. These Belt Scales have been proven in service demanding ±0.125% accuracy through independent certification. The weigh bridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER NAR Belt Scales are designed to deliver exceptional stability and accuracy for use in applications requiring verifiable accuracy. Recommended for applications requiring commercial certification for billing purposes. These Belt Scales have been proven in service demanding ±0.125% accuracy through independent certification. The weigh bridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
Thayer’s 6RFs-6 conveyor Belt Scale is designed for high accuracy (1/10% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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6RFS-8 Conveyor Belt Scale 8RFS-6 Conveyor Belt Scale 8RFS-8 Conveyor Belt Scale
Thayer’s 6RFs-8 conveyor Belt Scale is designed for high accuracy (1/10% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
Thayer’s 8RFS-6 Conveyor Belt Scale is designed for high accuracy (1/10% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
Thayer’s 8RFS-8 Conveyor Belt Scale is designed for high accuracy (1/10% typical) inventory control and totalization. The weighbridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
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8NAR-6 NTEP Certified Conveyor Belt Scale 8NAR-8 NTEP Certified Conveyor Belt Scale S52i BELT & BELT SCALE SCALE INTEGRATOR

THAYER 8NAR-6 Conveyor Belt Scales are designed to deliver exceptional stability and accuracy for use in applications requiring verifiable accuracy. They are recommended for applications requiring commercial certification for billing purposes. These Belt Scales have been proven in service demanding ±0.125% accuracy through independent certification. The weigh bridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER NAR Conveyor Belt Scales are designed to deliver exceptional stability and accuracy for use in applications requiring verifiable accuracy. They are recommended for applications requiring commercial certification for billing purposes. These Belt Scales have been proven in service demanding ±0.125% accuracy through independent certification. The weigh bridge features exclusive rocking flexure suspension in the approach-retreat configuration. Measurement sensitivity is high, deflection is low, and the load cell is isolated from the error-inducing effects of extraneous lateral forces, off-center loading, foundation distortion, inclination hold-back forces, and high sporadic shocks and overloads. Tare load is mass counterbalanced to create superior signal to noise ratio in weight sensing, orders of magnitude better than belt scale designs supporting full tare load on the load sensor.
THAYER’s S52i Integrator is a full featured instrument in a single, compact package. It performs the same functions as an instrument costing many times more without sacrificing the accuracy associated with THAYER products. Simplicity of use has always been a very important factor in designing an instrument and the S52i has inherited all the time and labor saving methods THAYER has developed over the years.S52i Instrument can be used on most belt conveyor weigh belt systems to provide continuous information about the flow of material to its process by monitoring the load and speed. The weigh system must use a strain gauge to sense weight; however a variety of sensors can be used to sense the speed. Weight information is processed as weight per length and speed is processed as unit length per time. Integrated together, a great deal of information is available about the system, such as: flow rate; accumulated weight (total); belt loading; belt speed; etc
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i340 BELT SCALE INTEGRATOR 5200 Series Controller Autitor NTEP Certified Belt Scale Monitor
Thayer Scale’s new Model i340 Conveyor Belt Scale Integrator is a full featured instrument specifically designed to match with Thayer’s single idler “Quarry King” Belt Scale. It performs the same functions as an instrument costing many times more without sacrificing accuracy that is associated with THAYER weighing products. Simplicity of use has always been a very important factor in designing an instrument and the Model i340 has inherited all the time and labor saving methods THAYER has developed over the years.
The Series 5200 Instrument is designed to operate as an integral part of a weighing system to provide continuous information on material flow for external use. The Series 5200 instrumentation is comprised of four components: the Central Processing Unit (CPU) which includes the Application software on a Flash memory card, the Scale Unit (SU-5200), the Operator Interface (OI-5200), and the Scale Junction Box (SJB-5200). Accuracy in weight and speed signals, flexibility in both I/O assignment (user assignable) and system layout (CPU, OI-5200 and SU-5200 can be separated or mounted to the conveyor frame), and an intuitive display/keypad that makes the system easy to use are among the features that set the Series 5200 ahead of all.
THAYER AUDiTOR™ is a PC based data collection and software package running on an industrial PC (IPC). It provides a link between a plant and the Series 5200 NTEP approved secure integrator. It has been designed to meet the requirements if NTEP, AAR and HB-44 for rate trending and printing of deliveries with date and time stamping. AUDiTOR™ package provides users the ability to monitor scale performance at a glance and present statitory authority information necessary to certify a belt scale and installation. Rate and delivery data is stored on CompactFlash® and can be recalled for viewing screens. The operating system resides on the CompactFlash®. It is MS Windows® embedded. Performs standard computer functions found on all PC systems. It provides interface to external devices via USB, serial & Ethernet drivers
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FP Conveyor Belt Scales Belt Travel Pulser FP Belt Scales
THAYER “FP” Conveyor Belt Scales is a unique weighing scale specifically designed to accurately weigh “low density” materials. Weighing deck typically consists of 2 to 6 flat idlers, mounted either horizontally or at an incline of up to 12 degrees, depending on material handled. It can be used in new installations or can be seamlessly integrated into an existing conveyor. Typical application include cereals, snack foods, pet foods, wood fibers, paper waste, tobacco, and textiles (bulk densities ranging from 0.5 to 25 pcf). Force Measurement Suspension System (FMSS) is the arrangement of active mechanical elements interposed between the load receptor (belt) and load cell. Properly designed, the FMSS functions as a force vector filter that permits the sum of the chosen uni-directions force components to pass through the system to the load cell while blocking all other nuisance, erroneous or destructive force vectors.
THAYER’S belt travel pulser assembly includes a precision cast/machined wheel with a pre-calibrated circumferential tolerance of ± 0.05% and a high resolution digital transmitter. Produces pulses equivalent to 1/100 to 1/200 of a foot of belt travel. A spring is used to maintain proper contact pressure of the wheel with the tension side of the belt in all operating conditions. Speed pick-up wheel has a narrow face width so it is less susceptible to material build-up, which can result in speed measuring errors. Since belt stretch is not constant throughout the length of the conveyor, and therefore, can affect speed measurement, the speed pickup produces a more accurate speed signal than that which is produced by tail pulley mounted speed encoders. high resolution speed transmitter, optical pulse generator. Transmitter is equipped with special seals designed for abrasive dust such as iron ore taconite or coal. Pulse frequency directly proportional to the speed of the conveyor belt and each pulse represents a specific increment of belt travel.
THAYER “FP” Belt Scales is a unique weighing scale specifically designed to accurately weigh “low density” materials. Weighing deck typically consists of 2 to 6 flat idlers, mounted either horizontally or at an incline of up to 12 degrees, depending on material handled. It can be used in new installations or can be seamlessly integrated into an existing conveyor. Typical application include cereals, snack foods, pet foods, wood fibers, paper waste, tobacco, and textiles (bulk densities ranging from 0.5 to 25 pcf). Force Measurement Suspension System (FMSS) is the arrangement of active mechanical elements interposed between the load receptor (belt) and load cell. Properly designed, the FMSS functions as a force vector filter that permits the sum of the chosen uni-directions force components to pass through the system to the load cell while blocking all other nuisance, erroneous or destructive force vectors.
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