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2022 / 2023 Edition

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Trio machines for South African quarry operator

Crushing and screening plant

Weir Minerals Africa supply crushing and screening equipment to CNC Crushers Roadstone 

CNC Crushers Roadstone have benefitted from uninterrupted production ranging from 1,000 to 1,200 tonnes of aggregate per day for road construction in various areas of South Africa’s North West province after they introduced Trio comminution equipment to their Stilfontein operations.

The company is operating Trio TC-series cone crushers and an inclined Trio TIO screen, all of which were purchased from Weir Minerals Africa.

CNC Crushers Roadstone’s TC36SH (short head) weighs 12,000kg and has a feed opening of between 100–180mm, as well as a head diameter of 914mm. It has a maximum power output of 90kW and a capacity of between 27 tonnes/h and 186 tonnes/h.

Meanwhile, the company’s TC51S (standard head) has a head diameter of 1,295mm and weighs 22,500kg. It has a feed opening of between 65–135mm and a maximum power of 200kW. The unit has a capacity of between 36 tonnes/h and 255 tonnes/h.

To meet the company’s screening requirements, CNC Crushers roadstone opted for a Trio TIO5162 inclined double-deck screen, which generates its motion via three timed shafts with eccentric counterweights. This three-shaft combination provides an oval strike with adjustable amplitude, speed and operating angle, as determined by application, feed size and gradation.

The vibrating unit uses an oil bath lubrication arrangement, whilst the plates are made from hot-rolled steel and are plasma cut with computer numerical controlled punched holes. In addition, Trio products are manufactured using Huck-bolt construction techniques to ensure structural integrity and eliminate stress fatigue in the screen body.

CNC Crushers Roadstone have maximized the operation of their Trio comminution equipment by entering into an extended service level agreement with Weir Minerals Africa. The OEM’s technical field service personnel now spend two full days a month at the operation, undertaking preventative maintenance on the equipment. 

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Submitted by Sebastian Rakoczy (not verified) on

good article.
Nevertheless, the Trio TIO series are circular motion screens. The good explanation of the elliptical motion is for the TTH horizontal screen series.

Have a good day

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