After cleaning, green coffee beans are conveyed into storage hoppers by origin/variety. Combinations of bean varieties are drawn from these storage hoppers in precise amounts and blended to achieve specified flavor profiles during roasting.
Thayer Scale provides many of the world’s leading industrial coffee roasters with food-safe Loss-in-Weight feeders and Light Industry weigh belt feeders to ensure highly accurate and consistent blending. Thayer Scale’s Model MWF is an accurate, rugged, low-capacity weigh belt feeder proven to operate reliably across a wide range of industrial environments. A standard design, customizable with application-specific dimensions and ratings, makes it highly versatile. It is easy to maintain and feed rates can be adjusted to extend its service life, even in rapidly changing industrial environments. Thayer Scale equipment is used in green bean blending to improve inventory control and make the blending process easier to manage with fewer operators by automating the weighing process.
Many green bean blending and roasting systems utilize a green bean storage array consisting of multiple, multi-quadrant hoppers, each fed by multi-position diverter valves. Pairs of silos can discharge onto a common Thayer Scale Model “MWF” Weigh Belt, depending on the positioning of the slide gates at the bottom of each silo. Each weigh belt delivers high-accuracy green bean blends in a low-profile stack-up that readily fits within today’s building designs. The weigh belts eliminate gravity chute work and product free-fall height, significantly reducing product damage. Gentle product handling maintains a higher bean quality and generates larger yields for the producer.
The weigh belts seamlessly integrate with modern roasting profile software, facilitating automatic, real-time adjustments that mitigate variances in green bean characteristics. Each weigh belt accurately delivers a wide range of batch sizes with high precision, allowing processors to adapt to rapidly changing flavor trends and develop more customized product SKUs for their clients.
Weighing equipment for the processing of coffee
Weigh belts
- Highly accurate for reliable, repeatable measurements and batch control
- Available with open or enclosed construction
- Designed to fit new or existing process flow streams
- Cantilevered conveyor assembly simplifies maintenance
Loss-in-weight feeders
- Auger discharge
- Vibratory pan discharge
- Feed rates from grams/minute to tons/hour
Hopper and silo material flow promotion solutions
- Provide consistent, uninterrupted material flow
