Latest compact wheel loaders set new standards of productivity, versatility, operator comfort
THE new four-machine line-up, ranging from the 4.4-tonne 21F to the 6.2-tonne 321F wheel loader models, delivers, say Case, high levels of performance through a highly efficient new hydraulic system.
The low cab means the new compact wheel loaders move efficiently in every jobsite and are easy to transport. Operators also enjoy the superior comfort of the cab, maximizing their productivity with minimum fatigue and all service points are easily accessible from the ground.
The new F-Series is designed to maximize productivity and minimize the time needed for servicing and attachment changeover. The optimal weight distribution allows the F-Series wheel loader to lift a much bigger pallet load than its predecessor. For example, at the low end of the range, the 21F XT is designed to lift up to 2,000kg – 400kg more than the 21E model it replaces.
The XT parallel linkage and Z-bar arms maintain the forks parallel to the ground, so the operator can handle pallets easily and faster. Thanks to the design of the arm, operators can load the pallet on the opposite side of the truck, significantly speeding up loading operations.
In addition, the articulated joint and oscillating rear axle result in excellent stability. As the front tyres hit a rock or a hole, there is no bucket roll motion so the full load stays in the bucket and the cab remains vertical, resulting in greater operating comfort.
The cab has been lowered so that the compact wheel loader can move easily within the job site. The narrow turning radius of the F Series compact wheel loaders further adds to their agility in tight spaces.
The new hydraulic system delivers all the power needed to operate the attachment in operation. The High Flow option, available on the 221F and 321F, increases flow from 70 to 130 litres/min and facilities the use of powered attachments such as snow blowers or asphalt planers.
There is a four-wheel drive hydrostatic transmission that offers 33 km/h, which is available on the High Speed option on the 221F and 321F models with two-gear mechanical gearbox. Turtle and rabbit speed can be engaged under load for maximum efficiency.
The F-Series compact wheel loaders are powered by a 3.4 litre four-cylinder turbocharged, multiple injection high-pressure common rail FPT Industrial engine with a wastegate valve. According to Case, this feature reduces drops in turbo pressure, resulting in fast engine response under load and superior turbocharger reliability.
The F Series also meets Tier 4 Final emissions standards with a unique maintenance-free solution developed by FPT Industrial based on exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC) and a particulate matter (PM) catalyst.