Customised ContiEarth range for machinery operating in harsh conditions

Off-the-road tyres (OTR) mounted on a variety of construction vehicles and machinery have to cope with difficult ground conditions. Continental has therefore developed the ContiEarth range.

The range consists of a series of OTR tyres, each of which is equipped with a thoroughly developed tread pattern tailored for the specific needs and requirements of loaders, dump trucks or dozers used in mining and construction projects. The ContiEarth range consists of two tyre lines – the EM-Master and the RDT-Master.

EM-Master for ADTs, loaders and dozers
Articulated dump trucks (ADTs), loaders and dozers are used for transporting large quantities of bulk or aggregate material in extreme conditions ranging from soft and muddy soil to gravelly and rocky terrain on construction or mining sites. Durability, excellent traction, and superior resistance to rock cutting and heat generation are essential for operation in these extreme conditions. Continental’s EM-Master is customized for these specific demands. The tyre is available in two versions with different tyre tread designs.

EM-Master E3/L3: The five-edged block design, a normal tread depth and wide spacing between the blocks ensure good self-cleaning characteristics, traction, and maneuverability even in soft and muddy terrain.

The EM-Master E3/L3 features a normal tread depth and wide spacing between the blocks. This results in good self-cleaning characteristics, traction, and manoeuvrability even in soft and muddy terrain. The open tread design offers better cooling characteristics and therefore low heat buildup, resulting in a long service life.

Compared with the E3/L3, the EM-Master E4/L4 features a greater block size with less spacing between the blocks. The tyre therefore offers a high level of carcass protection and good cutting resistance, minimizing the risk of punctures and downtimes. The smaller tread block spacing of the five-edged block design results in smooth running and good traction even on hard and rocky surfaces. Due to its deep tread design and high wear volume, the EM-Master E4/L4 also offers an excellent service life.

Both the EM-Master E3/L3 and the E4/L4 are available in sizes 23.5R25, 26.5R25 and 29.5R25. The EM-Master E3/L3 is additionally available in size 20.5R25.

RDT-Master for rigid dump trucks
The RDT-Master is designed for rigid dump trucks, which transport heavy loads over long distances in rough terrain. In these severe conditions, tires have to offer high stability and good traction even at high speeds. In addition, the tyres need to be extremely resistant to cuts and tears.

The extra deep tread of the EM-Master E4/L4 offers high carcass protection against cuts and damage by foreign objects such as stones.

The RDT-Master’s special tread design with a deep tread depth and a wide, flat tread radius offers high loading capacity and cutting resistance. The angled tread edges, in addition to the open shoulder design, ensure good self-cleaning capabilities and facilitate high lateral stability, which results in better driving behaviour. Maximum traction is guaranteed even on winding terrain and while driving at high speeds. The RDT-Master is available with a standard compound and a cut-resistant compound designed to withstand sharp rocks and stones in rough terrain.

The RDT-Master E4 is available in sizes 18.00R33, 21.00R33 and 24.00R35.