Capital Equipment News January 2023

Ben Armitage. “The DR400 generates less than 5% of 0 to 6 mm fines, compared to around 12% created by impact crushers – depending on coal hardness and crushing ratios.” The DR400 boasts a large hopper that is readily fed by loaders or excavators. To increase the average production rate, the unit can be interlocked as part of a crushing train. Connected with a Metso LT106 jaw crusher, the two units can communicate to synchronise the feed-rate. This optimises throughput by automatically adjusting the rate of material moving between the machines. The on-board hydraulic rock breaker on the Metso LT106 also allows oversize material to be quickly broken, avoiding blockages and preventing downtime. Crushing efficiency is enhanced by feeding material into the crushing chamber at exactly the same speed that the drums are spinning. This minimises attrition and friction, even at high throughput rates. “The safety features on the DR400 ensure that it is compliant with demanding safety protocols applied by mining companies,” says Armitage. “These include full guarding around all moving parts, access points, nip points and crushing points – as well as pull cords and

Pilot Crushtec’s DoppiaTrac DR400 is designed and manufactured in South Africa.

The DR400 generates less than 5% of 0 to 6 mm fines, compared to around 12% created by impact crushers – depending on coal hardness and crushing ratios.

Its ability to reduce the generation of fines is thanks to the double-roll crusher.

Depending on coal characteristics, the engine’s 160 kW output can convert to a ratio of just 0.4 kW per tonne.

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CAPITAL EQUIPMENT NEWS JANUARY 2023 29