Every year, half a million tons of sand and gravel are produced from Calgary Rolling Mix Concrete’s crushing operation in Alberta, Canada — providing high-quality concrete for everything from foundations and walls to driveways, sidewalks, patios and more.
To manage this, Rolling Mix Concrete, which celebrated seven decades of production in 2025, employs a large fleet of heavy equipment, where three Rokbak RA40 articulated haulers have been added. Headwater Equipment, Rokbak’s trusted Alberta dealer, helped supply the trio of hardworking articulated haulers to the pit in Carseland, a town in the province.
Rolling Mix Concrete’s decision as to what to add to their fleet to support its operation came down to the key factors of reliability, minimal downtime, fuel efficiency, and ample aftermarket support.
Why Rokbak?
The RA40 has a haul capacity of 41.9 U.S. tons (38 tonnes) and a heaped capacity of 30.3 yd3. Each hauler has proven its worth across the Carseland Pit, hauling large amounts of material to meet Rolling Mix Concrete’s demanding production numbers with a 66-degree dump angle and dual-slope tail chute that speeds up material ejection.
Two RA40 articulated haulers were delivered to the site in 2023 and immediately put into operation, with a third unit arriving in 2025. Excavators load overburden into the RA40’s all-welded body to transport sand and gravel across Carseland Pit for production.
The RA40 body is fabricated from high-strength 1,000 MPa (1450,000 lbf/in2) yield steel. Finished in Rokbak’s signature sand-coloured paint, the haulers have quickly made an impression on site.
“The Rokbak dump truck is ideal for our operations at Carseland Pit,” says Morris Roberts, Rolling Mix Concrete’s service and purchasing manager. “Since the RA40s arrived, operator feedback has been overwhelmingly positive.
“They’ve praised the fuel efficiency, which is saving us money, but also the auto-lube system, visibility and cab comfort. We understand a smoother ride translates directly to higher productivity. Combined with the excellent aftersales support we’ve received from Headwater, we can’t recommend Rokbak highly enough, and it’ll certainly be top of the list when it comes to expanding our ADT fleet again.”
Operators themselves have also taken notice of the difference. “The cab is comfortable and quiet, even on rough ground,” says Renato Angelozzi, an operator at Calgary Rolling Mix Concrete. “The visibility is excellent, and the controls are simple and responsive. You don’t feel worn out at the end of a long shift, which makes a big difference.”
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