Articulated Haulers Support Aggregate Production in Alberta

Rokbak, Calgary Rolling Mix Concrete, and Headwater Equipment cooperate to deploy articulated haulage equipment for continuous aggregate production at a high-output pit in Alberta, Canada.  www.rokbak.com Calgary Rolling Mix Concrete has integrated three articulated haulers supplied by Rokbak and supported locally by Headwater Equipment to stabilize material transport at its Carseland aggregate pit in Alberta. The cooperation addresses continuous hauling requirements for sand and gravel used in ready-mix concrete production, with an emphasis on equipment uptime, predictable maintenance, and operator efficiency. Context of the Cooperation Calgary Rolling Mix Concrete operates a crushing and aggregate processing site producing approximately 500,000 tonnes of sand and gravel annually. To sustain output levels, the company relies on a large fleet of mobile equipment operating under short haul cycles and variable ground conditions. Rokbak supplies off-highway articulated haulers for quarrying, mining, and construction applications. Headwater Equipment acts as the regional dealer responsible for equipment delivery, maintenance, and parts logistics. The cooperation combines manufacturer design, local service capability, and operational requirements from the end user. Technical Solution and Responsibilities The deployed machines are RA40 articulated haulers with a rated payload of 38 tonnes (41.9 US tons) and a heaped body capacity of 30.3 yd³. The dump body is fabricated from high-strength steel with a 1,000 MPa yield rating, supporting repeated loading of abrasive aggregate materials. Key technical features include: A 66-degree dump angle with a dual-slope tail chute to support consistent material discharge. A fully automatic transmission designed to maintain traction and manage torque under variable load conditions. Force-cooled multi-disc service brakes combined with an exhaust brake and transmission retarder to reduce brake wear on haul routes of approximately 2 km round trip. An integrated automatic lubrication system to standardize greasing intervals and reduce manual maintenance time. Rokbak is responsible for machine design and manufacturing, while Headwater Equipment provides on-site scheduled maintenance, parts supply, and technical support. Calgary Rolling Mix Concrete manages daily operation, fleet rotation, and production scheduling. Deployment and Integration Two RA40 units entered service in 2023, followed by a third unit in 2025. The haulers transport overburden, sand, and gravel from excavation points to processing areas within the Carseland pit. The machines are integrated into an existing fleet and supported through a rotation strategy in which one unit is replaced every three years at approximately 6,000 operating hours to maintain consistent fleet age and availability. Applications and Operational Impact The primary application is short-cycle aggregate hauling for concrete production. Reported operational data indicate accumulated usage of up to 5,000 operating hours and 45,000 km on individual units. Technical benefits are derived from standardized maintenance, predictable fuel consumption under load, and reduced downtime due to local service availability rather than from changes to production volume. Industry Relevance The cooperation illustrates how articulated haulage equipment, dealer-based service models, and structured fleet replacement planning can support process stability in quarrying and construction materials operations. Rokbak operates as part of the Volvo Group, aligning the equipment with globally applied emissions and safety standards while allowing local adaptation through regional partners. www.rokbak.com Powered by Induportals Media Publishing