Thwaites 3 Tonne Electric Prototype '10.2022

A prototype of Thwaites' first electric site dumper.

It is powered by four lithium-ion (dry-cell) batteries, operating at 48V. Each battery is rated at 5.75kWh, driving one motor for traction and another for hydraulic tipping.

The electric drive 3-tonne dumper has a similar unladen weight to the diesel/hydrostatic version but with the main battery pack and driveline components now sitting lower in the rear chassis, it has a lower centre of gravity and thus better stability.

The standard on-board 3.4kW battery charger can charge the pack from 0-100% in eight hours. Optional off-board chargers rated at 7kW (single-phase) and 22kW (three-phase) have charge times of four hours and two hours respectively.

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4 месяца назад

Wheels&Tracks

31 Oct 2022

British dumper manufacturer Thwaites has revealed an all-new, all-electric 3-tonne dumper.

The 3-tonne electric machine displayed at bauma was an advanced concept machine, with the go-to-market version being available in 2023.

Four maintenance free, long-life, lithium-ion (dry-cell) batteries, operating at 48V, are fitted. Each battery is rated at 5.75kWh, providing the power to drive the machine. With two highly efficient electric motors (one for traction, one for the hydraulic services) giving the operator the control and manoeuvrability expected from a Thwaites dumper.

The electric drive dumper has a similar unladen weight when compared to the diesel/hydrostatic version. The main battery pack and driveline components, now sit low in the rear chassis, lowering the centre of gravity when compared to the hydrostatic drive machine, further improving machine stability.

Critically, the battery pack will complete a full 8-hour shift of ‘normal site operation’ from a single charge. The standard on-board 3.4kW battery charger can charge the pack from 0-100% in 8 hours. Optional off-board chargers rated at 7kW (single-phase) and 22kW (three-phase) have charge times of 4 hours and 2 hours respectively.

https://www.earthmoversmagazine.co.uk

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