Yale equips lpg forklifts with Kubota industrial engine
Yale has achieved a step change in efficiency by equipping its GLP40-55VX lpg counterbalance trucks with a new Kubota industrial engine.
Phil Ireland, Yale’s senior product strategy manager, counterbalance solutions, said: “Like many manufacturers, we previously used an automotive derived lpg unit for this market, but an industrial engine is much better suited to materials handling. Its essential advantage is that it operates at lower rpm and gives much more lower end torque. This, in turn, results in higher performance, better fuel economy, less noise and vibration and a longer life.”
The lp gas forklift truck can also be specified with a load sensing hydraulics (LSH) option, which avoids the loss of power and energy of the lift system when the truck is in drive mode and, conversely, provides on demand flow of hydraulic oil to increase responsiveness when lifting.
The autospeed hydraulics (AH) option contributes to productivity by automatically increasing engine speed for faster lifting whenever the hydraulics are activated. This simplifies the process for operators, saves time, encourages more fuel efficient driving practices and helps maximise the effectiveness of LSH.
Phil continued: “We have compared the performance of our trucks with the new engine against that of the previous models. In interpreting the figures, it’s important to note that the performance of the previous engine differs relatively little from that of the other top automotive engines, while the superiority of the Kubota industrial engine over automotive units is clear.”
In the VDI test for turnover fuel consumption, the standard Kubota engine used 19.8 per cent less than its automotive equivalent. With load sensing hydraulics, autospeed hydraulics and an eco eLo setting, the cumulative savings were 24.5 per cent.
VDI productivity figures, which measure loads moved per kg of fuel, gives a useful index of operating efficiency. This showed an 18.9 per cent improvement with the new engine. Adding load sensing hydraulics and autospeed hydraulics increased this advantage to 21.6 per cent, and then setting the performance mode to eco eLo made it 28.4 per cent.
Phil concluded: “For high performance in intensive applications, including steep grades and heavy loads, we have shown that an industrial lpg engine is substantially more capable and efficient.”