We’ve achieved a massive increase in productivity
The New Zealand company Simcox Construction switches to KLEEMANN crushing and screening technology.
Two KLEEMANN crushers and a KLEEMANN screening plant have commenced work in the quarries operated by the New Zealand construction contractor Simcox Construction in the Marlborough region located at the top end of the country’s South Island. Those responsible at Simcox were immediately impressed with the “Made in Germany” technology: “Everything is so much faster and there is far less downtime compared to our old machines,” concludes Antony Clark, General Manager at Simcox Construction.
Processing greywacke for armourstone used in hydraulic engineering structures and for road construction
The three KLEEMANN plants – the MOBICAT MC 110 Z EVO jaw crusher, MOBICONE MCO 9 EVO cone crusher and MOBISCREEN MS 16 D screening plant – are the first of their kind in New Zealand.
Blenheim, New Zealand
Initial material size
0 – 400mm
A P20, AP40, AP65*
*AP: Standard for road construction in New Zealand
Simcox produce two different products in the quarry described here. The first are blocks of rock with an edge length of more than 400mm which are used directly in hydraulic engineering. The second is used as base course material in road construction. For this product, the mineral material ranging in size from 0 to 400mm is processed as follows:
- In the first crushing stage, material ranging from 0 to 400mm in size is fed into the MC 110 Z EVO. Pre-screening takes place using the independent double-deck pre-screen. The pre-screened material is transferred directly to the main discharge conveyor via the bypass.
- In the next screening stage, the material is conveyed from the MC 110 Z EVO jaw crusher to the MS 16 D screening plant, where material measuring < 20mm is separated by screening and discharged. Material measuring > 20mm is fed into the MCO 9 EVO cone crusher for the next processing stage.
- In the second crushing stage, the MCO 9 EVO breaks the material down to 0 – 20mm. It is then returned to the screening plant for further screening in a closed cycle.
Thanks to the KLEEMANN technologies we can produce a first-class product in next to no time.
Increased productivity requires a larger excavator and an additional wheeled loader
Once the decision to invest in KLEEMANN equipment had been made, Simcox wanted the plants to be commissioned as soon as possible. “Gary Payne from WIRTGEN New Zealand put the wheels in motion,” says Clark, with the result that the crushing and screening plants were delivered within a few weeks. The general manager was also highly satisfied with commissioning: “Having the first machine on site right on time without disruptions to our schedules was crucial for us – and confirmed we had opted for the right partner.” The plants’ performance was also impressive: “Our biggest benefits are greater efficiency and increased production.” Plant Operator Richard Price agrees: “I’ve been involved in the quarry industry for over 30 years and I’d never actually seen a KLEEMANN before our machines arrived, but now I am absolutely amazed. In the event of a material accumulation, the plants are all self-regulating. This kind of smart technology is great because it safeguards the plants’ operational availability and prolongs service life.” Simcox now manage to process such large quantities that, for material feed, they had to change from a 12t to a 23t excavator in order to fully exploit the plants’ capacity. Furthermore, an additional wheeled loader was needed to haul away the end products. Based on this experience it soon became clear that the investment in KLEEMANN equipment pays off. Antony Clark says: “The implementation of these technologies is a big step forward for us.”