A trolley system is a power delivery system that allows mining trucks to use electricity from fixed electrical infrastructure as their power source, rather than using a diesel combustion engine. The trucks connect to the trolley line via a pantograph and collect the energy needed to move the machines via this connection.

2022年10月21日 · Like for electric trains or busses, the Trolley Assist System uses onboard pantographs to connect a mining truck’s drive system to overhead power lines on uphill haulage segments. When connected to the overhead power lines in trolley mode, the full power capacity of the electric wheel motors can be translated into speed on grade while the ...

This new 305 tonne truck can be fitted with the Liebherr Trolley Assist System, a significant step towards zero emission mining. The T 274 follows the same base design as the T 284, benefitting from its decades of field experience.

Liebherr has developed the Trolley system in which trucks are able to operate at higher speed on grade and reduce cycle times. By augmenting speed on grade up to 24.2 km / 15 mph, the Trolley Assist System maximizes productivity, offering higher production per hour.

2020年10月8日 · Since signing the development contract for the trolley system at Bauma 2019, VA Erzberg has been testing the modified T 236 diesel-electric truck in its siderite iron ore mine in Eisenerz, Austria. The tests were conducted on a 500 m long test segment.

2021年9月14日 · With the T 264 trolley components production-ready in 2022, all Liebherr trucks will be available with Trolley Assist System, providing a low emission solution for customers. The Liebherr Trolley Assist System is, the company says, an effective first step on the road to zero emission mine sites of the future.

2020年10月19日 · At Bauma 2019, VA Erzberg and Liebherr concluded a development contract for a Trolley assist system for the T 236 (100t mining truck). Since then the iron ore mine has been testing the diesel-electric truck in Austria. The truck was modified to operate with an overhead line connected through a current collector with bars on a 500 m long test track.

This new 305 tonne truck can be fitted with the Liebherr Trolley Assist System, a significant step towards zero emission mining. Designed and adapted from years of experience in mining truck development, the T 274 is a true 305 tonne machine that provides fast cycle times, higher production rates, low fuel consumption, and a low cost per tonne.

2021年6月3日 · Liebherr delivers proven field experience with 38 T 284 units fitted with the Trolley Assist System already in operation on two different sites. Liebherr is extending its product offering with the T 274, a class-leading 305 t / 336 tons haul truck. This new truck bridges the gap between the highly succes.

The Trolley Assist System offers: – Increased truck fleet productivity, or reduction in fleet size while maintaining yearly production, versus standard trucks – Reduction of fuel consumption from 50 l / 13.2 gal to 2.5 l / 0.7 gal of diesel for a 1 km / 0.6 mi trolley run – Reduction of carbon footprint by decreasing the truck fleet CO2 ...