Tag Archives: Volvo Penta

New GHH 45 t capacity dump truck about to enter underground market

GHH has developed a new 42 t payload dump truck that, it says, offers maximum drive power, improved turning radius, steep dumping angle and excellent ergonomics and safety.

The German manufacturer of heavy machinery for civil engineering, tunnelling and mining, which has roots that go back to 1758, has three other underground dump trucks in its underground mining portfolio (in addition to two within its low profile dump truck offering and one within its flameproof portfolio) spanning 15-35 t payload applications. The new truck is the largest in its portfolio.

The new MK-42 offers an up to 45 t payload, 19-24 m³ dump body capacity, maximum drive power, a great turning radius, improved dumping angle and excellent ergonomics and safety, according to the company. It has a streamlined, innovative product design, which just received the Red Dot Design Award, GHH added.

The 460 kW Mercedes OM473 forms the engine base, fulfilling the latest EU Stage V emission standards. GHH also offers Tier 3 and 4 versions for less regulated markets, while an alternative Volvo Penta TAD1651 or 1671 engine option is available.

The vehicle rests on Kessler axles with oscillating articulation and front axle suspension, while the power is transmitted by a converter and gearbox combination from the Dana 8000 series.

Designed for use in harsh environments, especially in underground hard-rock mining applications, the MK-42’s dimensions are surprisingly compact at 3,062 x 10,535 x 2,719 mm (WxLxH). A steep dumping angle of 68° leads to high efficiency productivity and improved cycle time, according to GHH.

The company said special emphasis was placed on a safe and simple design, with low maintenance and repair costs, and operator safety and comfort kept in mind through the entire design process. The ROPS/FOPS certified cab is ergonomically designed to be spacious, quiet, pressurised and effectively air-conditioned to ensure maximum operator comfort while minimising fatigue, GHH says. The strategically placed trainer seat, meanwhile, provides for effective operator training.

The new MK-42 fits seamlessly into the manufacturer’s range of dump trucks and is the perfect haulage partner for GHH’s LF-14 loader, with the combination of the two offering three pass loading, GHH said. Extensive consulting, aftermarket support, parts sales and technical training are just a few of the services GHH offers to all customers worldwide.

Global sales will start shortly as the prototype truck enters its final stage of rigorous testing, GHH said, which added that a special version, the MK-A45, will be marketed exclusively for the Russia market.

Sandvik and Volvo Penta collaborate on Stage V underground LHDs

Sandvik says it is readying the release of its first Stage V compliant underground loaders for hard-rock mining applications following extensive testing.

In early 2020, the company’s newest intelligent loaders, the Sandvik LH517i and Sandvik LH621i, will get the Stage V treatment. The Stage V Volvo Penta engines will be globally available as options, but require ultra-low sulphur fuel and low-ash engine oil to operate, Sandvik said.

The planned release follows more than 10,000 hours of LHD testing underground, on multiple customer sites in Europe, and with millions of hours of on-highway experience from Volvo. This has led to the new technology meeting customer expectations, equipment performance requirements and the most stringent emission regulations valid at the moment, according to Sandvik.

The base engine and selective catalytic reduction (SCR) purifier are proven Volvo technology, enhanced now with a ceramic diesel particle filter (DPF), according to Sandvik.

“As a result of the collaborative product development work, the engine – delivered by Volvo Penta – and Sandvik load and haul equipment work seamlessly together to maintain productivity and reliability in the most challenging environments,” Sandvik said.

The benefits of Stage V compliant loaders include reduced amounts of particles in the diesel exhaust – helping mines to improve air quality underground – and the ability to operate with up to 3% reduced fuel consumption, compared with previous stage engines.

Sandvik said: “Another key enabler for the equipment availability is passive regeneration of the diesel particulate filter; the soot accumulated in the filter is burned off during equipment normal operation, without the need for frequent stand still regeneration.”

A new feature in the Stage V engine is the modulating engine brake, which enables the operator to adjust the engine braking power, allowing for better control of vehicle speed downhill, while minimising brake and transmission overheating and brake wear. Both the modulating engine brake and the passive regeneration contribute to high uptime of the equipment.

Added benefits of the Stage V engines include high altitude operating capability – up to plus-3,500 m above sea level – and lower noise levels compared with previous Stage engines.