Breedon Group plc, the largest independent construction materials group in the UK, has purchased new Doosan DL550-5 and DL450-5 Stage IV wheel loaders for two of the company’s operations in Scotland at Edzell Quarry near Brechin and Tom’s Forest Quarry in Kintore, respectively. The new Doosan wheel loaders were supplied by Inverurie-based Balgownie Ltd, the local Authorised Doosan and Bobcat dealer.
“…these quarries are very busy operations, placing big demands on the equipment we purchase for material handling applications,” says Regional Production Manager Bob Hare. “Both of the new Doosan wheel loaders are used to load and stockpile the large quantities of materials produced by the quarries’ crushing & screening equipment. They are also kept busy filling the material bins used to supply the ready-mixed concrete systems at the quarries.”
The DL550-5 and DL450-5 are powered by the Scania DC13 6-cylinder engine producing 283 kW and 257 kW of power, respectively, at 1800 rpm. Providing generous torque at low rpm, up to a 10% reduction in fuel consumption and excellent response, the Scania DC13 engine meets Stage IV emission regulations without the need of a diesel particulate filter (DPF), through the use of cooled exhaust gas recirculation (EGR) and selective catalyst reduction (SCR) after-treatment technologies.
In both models, the engine Auto Idle system when activated saves further on fuel costs by lowering the idle level from 950 to 750 rpm – when the operator does not give any input to the steering wheel, arm and bucket for more than 10 seconds (ideal for applications where there is a lot of waiting time such as truck loading). The Engine Auto Shut Off shuts down the machine after it has been idling for a specified amount of time (3-60 minutes, configurable by the operator via the control panel). This feature saves on fuel and reduces operating costs.
The DL550-5 and DL450-5 feature a new external styling that is common to all of the new DL-5 Stage IV wheel loader range, a new high comfort cab, smooth and responsive hydraulics, a ZF powertrain, axle cooling and auxiliary hydraulic connections.