Page 54 - Hub-4 Magazine Issue 73

Quarrying
Rokbak’s RA30 hauler – economy and performance in a perfect package
Simple to operate and easy to maintain, the RA30 delivers low total cost of ownership, a fuel-efficient performance and high productivity.
The RA30 articulated hauler from Rokbak is an ideal choice on quarries, construction sites and infrastructure developments. The 28 tonne (30.9 ton) workhorse offers a heaped capacity of 17.5 m3 (22.9 yd3) and is powered by a Scania DC9 engine, which develops gross power of 276 kW (370 hp) and a maximum torque of 1880 Nm (1387 lbf ft). The RA30’s fuel- efficient engine range is globally emissions compliant and meets the requirements of North American legislation with T4F. For the European market, Rokbak offers the RA30 with the latest EU Stage V emissions-compliant engine, boasting up to 7% improvement in fuel efficiency compared to older EU Stage IV engines.
The hauler’s EP320 transmission comes with eight forward gears as well as four reverse gears and features a top speed of up to 55 km/h (34 mph), high overall gear ratio spread, equal ratio steps between gears and optimised gear shifting with partial load shifts. All of this means that the RA30 offers lower fuel consumption with smoother gear shifting and thereby higher levels of operator comfort as well as faster cycle times and reduced carbon emissions. Overall, the entire drivetrain helps the hauler deliver class-leading rim pull for superior performance and productivity. It also ensures the machine offers excellent navigation and fast haul cycles. The RA30’s long life transmission fluid increases the length of time between oil maintenance intervals to 4,000 hours. This helps customers achieve increased productivity and uptime, as well as lower cost per tonne.
In addition, the machine has magnetic suction filters, which reduce the risk of contaminants entering the hydraulic system.
This helps to maximise uptime through cleaner hydraulic oil, longer periods between maintenance and prolonged hydraulic component lifecycles. In fact, the RA30 can go 4,000 hours between hydraulic fluid maintenance periods, which reduces the need for disposable maintenance materials over the hauler’s lifetime.
Safe and easy operation, plus maximum comfort
The RA30 is equipped with true independent front suspension as standard, further enhancing operator comfort and enabling excellent traction control and maximum productivity, even in challenging conditions. The RA30 also has fully enclosed, oil-
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www.hub-4.com March-April 22 - Issue 73