A new 721F wheel loader, supplied by Case Construction Equipment dealer Warwick Ward of Barnsley, is achieving large fuel savings for Widnes-based waste processing company WSR Recycling.
The 721F’s Tier 4 interim-compliant diesel engine with selective catalytic reduction (SCR) technology delivers optimum horsepower and torque output while consuming less fuel and producing lower emissions than previous models.
Don Bradfield, recycling manager with WSR Recycling, said that without compromising on performance or productivity, the new 721F is expected to save thousands of pounds in fuel costs compared with the machine it replaces.
‘We’ve been keeping detailed fuel-consumption records for all our machines for the past 18 months,’ says Mr Bradfield. ‘We’ve already noticed significant savings with the Case 721F over the other shovels we are using. The Case machine uses only 10 litres per hour; and given that we double-shift it seven days a week, that adds up to a considerable saving over the year.’
Mr Bradfield estimates that the saving could amount to as much as £6,000 per year.
WSR bought their first Case, an 821E, in January 2011, adding a second machine, a new 721F, six months later. This machine was the first machine to be sold in the UK with a Tier 4 interim engine.
The machines are required to work long shifts in dusty conditions and one of the reasons WSR were drawn to the Case models was their rear engine configuration, which gives improved weight distribution and puts the cooling system behind the cab.
‘Normally, you’ve got a twin radiator with a reverse fan, but here we’ve got a design that’s like a cube – so you’ve got the air coming in from the front and back, and from the top and bottom,’ explained Mr Bradfield. ‘That keeps the engine cool, especially in the environment we’re working in where there’s a lot of dust. We’ve had no overheating problems.’
Weighing just over 14 tonnes, the 721F is mid range in the new seven-model F-Series wheel loader line-up from 10 tonnes through to 28 tonnes in operating weight. It is powered by a 6.7-litre Tier 4 interim engine and normally equipped with a 4m3 high-tip bucket.