Weighfeeders

• Three-idler weigh section with integrated load cell
• Direct drive sealed Gearmotor
• Belt speed measured via tail drum encoder
• ModWeigh MW96A Processor for flow rate calculation and control

Since manufacturing our first weighfeeder in 1973, we have supplied hundreds of units throughout New Zealand and worldwide. This extensive practical experience ensures our systems feature robust mechanical design and construction proven in various industries and applications. Our ModWeigh Series of weighing processors, renowned internationally for quality and ease of operation, has been a cornerstone of our success for over 40 years.

Weighfeeders have applications across diverse industries including mining, quarrying, cement, fertiliser, chemical, steel, timber, and food processing. These systems play a crucial role in optimising production and blending processes, accurately measuring a wide range of products such as fertilisers, coal, sand, iron sand, aggregates, wood fibre/chips, wool, cereals, vegetables, tobacco, powder, and more.

• Maintaining bulk material flow rates to optimise efficiency and product quality in processes like kilns, dryers, and grinding mills
• Continuous blending of materials to achieve desired recipes
• Measurement of production rates
• Batching materials where bin weighing is not practical

Our standard weighfeeders are meticulously engineered units crafted to maintain or monitor flow rates with an exceptional accuracy of better than 0.5%.

The weigh section features three precision-machined idler rollers, with the weigh roller mounted on a flexure suspension system, ensuring the accurate transfer of belt weight to a high-resolution load cell. To prevent accidental overloads, the load cell is fully protected by precision stops.

Drive is provided by a sealed gearmotor, ensuring direct and efficient operation without the mess of chains or belts. Belt speed is accurately measured from the tail drum encoder, preventing belt slip and minimising flow rate errors.

For weighfeeders ≤600mm width, belt steering is managed by crowning of the drive and tail drums. On larger models, belt steering is facilitated by a pneumatic actuator.

In most cases, both rollers and drums are hard chrome plated, while bearings are of the sealed-for-life type. Standard features include side guards (if required), inner and outer belt scrapers, a junction box, and calibration weights.