Bobcat improves performance with new range
01 November 2006
Bobcat has made a major addition to the company's mini-excavator range in the 4 to 5-tonne class with the launch of the new 4.2-tonne 335 model.
“The new 335 mini-excavator offers optimum weight distribution, providing the best stability for lifting work as well as general excavation, digging for foundations, demolition work and other applications in all types of working conditions,” says a spokesman for Bobcat, a unit of Ingersoll-Rand.
“With an operating weight of 4,152 kg (with canopy and 4,271 kg with cab), the 335 excavator fills the gap between the 331/334 (3 to 4 tonne) and 337/341 (5 to 6 tonne) models in the Bobcat range of mini-excavators,” he adds.
Like the other Bobcat models, the 335 mini-excavator combines excellent stability with superior power and performance, including high breakout forces and quick cycle times. This combination of performance and economy of operation ensures that the 335 appeals to a wide range of customers, particularly rental companies, drainage contractors and landscapers, he says.
The cab on the 335 mini-excavators is designed to provide maximum operator comfort whilst reducing the overall height of the machine. “The result is a more compact machine that is easier to transport with less risk of damage to the cab. At the back of the cab, the tailgate provides strong protection for the engine and other components and opens wide to offer the finest service access on the market, saving on the time and effort required to maintain the machine,” says the spokesman.
The 335 mini-excavators are powered by the 30.3 kW Kubota V2203-m-di-E2B-BC-4 turbo-diesel engines. The maximum digging depth with the standard dipper arm is 3,564 mm and the maximum reach at ground level is 5,432 mm. The slewing speed of the 335 is 9 rpm and the boom can swing 90 degrees to the left and 50 degrees to the right with the auxiliary hydraulic flow being 75 litres per minute.”
The 335 mini-excavator has two travel speed ranges of 3.2 km/hour in the low range and 5.5 km/hour in the high range.
“Like the other Bobcat excavator models from the 331 and above series, the 335 features a load-sensing hydraulic system for optimum use of hydraulic power in digging applications,” he continues. “Since the operator does not have to compensate for changes in flow or load conditions, the excavator is easy to control. Moreover, the load-sensing system provides precision at all engine speeds, with predictable movements, resulting in faster cycle times. The load-sensing system also reduces fuel consumption.”
A dual-outlet piston pump provides increased flow, removing the need for an additional gear pump and enhancing the overall reliability of the machine. The combination of the load-sensing system and the new dual outlet hydraulic piston pump allows the use of smaller size cylinders on the 335, enhancing the balance and stability of the excavator.
