Modern Quarrying Q3 2019

VEI SYSTEMS FROM DYNAMIC WEIGH SYSTEMS

V d EI, the global leader in non-load cell weighing technology, is said to offer accuracies of between 99 and 100% on properly calibrated machinery. In fact, the technology has been licensed as “legal for trade” in Europe and has been granted NRCS approval in South Africa for several applications. The various models can be fitted on any machine with a lifting piston – from small forklifts all the way up to the largest rigid dumpers and excava- tors. Installation is non-invasive and requires no cutting or welding on the chassis. All telemetry is routed to the in-cab units and there are no external junction boxes. Simple systems The systems are robust, with IP65 ratings on the display units and IP68 ratings on the sensors. “The units have been designed with the “third world” in mind with simple, intuitive controls for the operators. Training usually takes less than an hour with the drivers reaching maximum effi- ciency within the first several hours of operating the machinery,” says Ivan van Heerden, MD of DWS. The accuracy of the units and their ease of use mean that load- ing efficiency is greatly increased, especially where axle weight loading is important. They can be coupled to VEI’s range of high-speed thermal printers, memory sticks and either RF, Wi-Fi or cellular modems. The latter allows for real-time tracking of the clients’ production, often important in remote locations where an office may not be present. VEI also provides powerful, multi-user payload management software which quickly puts infor- mation at managers’ fingertips. DWS can streamline and improve loading efficiency, leading to rapid return on investment and increased profitability. Case studies As far as case studies go, DWS has

Dynamic Weigh Systems has been appointed the sole agent in southern Africa for the VEI Group’s line of on-board weighing and payload management systems.

LOAD WEIGHING SYSTEMS

The various models can be fitted on any machine with a lifting piston.

The VEI systems offer accuracies of between 99 and 100% on properly calibrated machinery.

worked with Afrimat at Marble Hall where Van Heerden says the company has improved the quarry’s truck throughput by almost 90% and reduced the returns from the weighbridge to the stockpile drastically. “Derryn Fourie at Midmar Crushers has been using our systems for several years now and in his words, ‘that means your product must be excellent as I do not hear about any issues on it at the quarry’,” says Van Heerden. “At Blurock Quarries in Estcourt, our systems helped detect a problem with the weighbridge on site. There was a 300 kg discrepancy from one end of the deck to the other. We found the problem because we calibrated the loader on the one end and most of the trucks were weighed near the other end and the weights didn’t match up. This allowed them to get the weighbridge supplier out to re-calibrate the deck and saved them from charging for less than what was being loaded,” concludes Van Heerden. l

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MODERN QUARRYING QUARTER 3 - 2019