Quarry production

2432 Macleod Construction in the UK is growing its business operations and is investing its two quarries. To maximise production from the quarries, and to produce aggregate for construction projects, the firm needed to source a tracked crusher. The crusher had to be highly productive, tough and versatile and also reliable due to the site's remote location.

Macleod has opted to buy a QJ340 crusher from 325 Sandvik, which is based around its successful C-12+ track-mounted mobile jaw crusher. The QJ340 is powered by a 178 Caterpillar C-9 engine that meets emissions standards and the machine features a large feed opening and a high crushing speed, delivering high output, efficient size reduction and high productivity. A reverse crushing action capability is installed to relieve blockages while an automatic lubrication system is fitted as standard.

With the first unit having proven successful, Macleod Construction has since bought more Sandvik mobile crushers and screens for its fleet, with the QH330 cone crusher, and the QA331 tracked three way split screener being recent additions. The QH330 tracked cone crusher can help meet tough product quality demands that are due to the tightening of aggregate specifications and is said to ensure the production of material of high quality and shape. A hydroset system provides safety and setting adjustment functions, as well as incorporating a heavy duty hydraulic cylinder which supports the main shaft. The QA331 is a three way split screener developed from the QA330, but with improved screening capacity.