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Caterpillar unveils mini range

Caterpillar has launched the mini hydraulic excavator D-series and three compact track loaders

Cat has been making miniexcavators for 10 years and the new series includes the 308D CR SB, combing a compact radius and a swing boom so the operator can work in tight spaces.

The 307D is a standard swingtail machine with a fixed boom and the 308D CR is a compact radius machine with a fixed boom.

The D-series has increased traction force to improve dozing and turning, and the stick and bucket forces have also increased so the operator has higher break-out forces in difficult ground.

But in lighter operations, there is an economy mode to reduce fuel consumption, as well as a boom and stick regeneration circuit to increase efficiency.

The D-series also has four types of undercarriage, including a new rubber belt track and all are powered by a turbo Mitsubishi 4M40 TL engine at 56 hp, which means interim tier 4 emissions regulations.

The series can keep the same power at high altitude. Cat product expert Joris Hoogenboom says: “A lot of the design is based on the larger excavators but they are now available in this compact package.”

The new range of compact track loaders – 297C, 289C and 299C – have the same chassis and engine as the existing 277C, 287C and 297C but have new suspension-type undercarriages for
work on sticky, rocky soil.

The undercarriage uses an external-type sprocket, steel track rollers and idlers, conventional spring-type recoil mechanism and rubber tracks.

These machines will be assembled at Cat’s factory at Desford, Leciestershire, where dealers and customers can also watch demonstrations. More than 80 per cent of machines put together at Desford will be exported.