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| Caterpillar expands its mini excavator range to 0.9-2.7 tons  Caterpillar is extending its range of mini excavators, with the addition of three models with operating weights of 935kg, 1515kg and 2670kg. These additional models broaden the appeal of the Cat compact crawler excavator line-up, extending machine choices for customers in a variety of industry sectors. The 300.9D weighs in at just 935kg, making it the smallest machine in the Cat range. With an overall width of just 730mm, this machine is capable of driving through a standard doorway, providing easy access to the most confined job sites. This will prove popular with homebuilders, rental companies and demolition contractors.A powerful water-cooled three-cylinder diesel engine produces 13.7kW; along with a twin gear pump hydraulic system creates a maximum stick breakout force of 4.5kN and a maximum bucket breakout force of 8.9kN. The machine comes equipped with an extending undercarriage and fold-out dozer blade, ensuring maximum stability and allowing a digging depth of up to 1,731mm and a maximum excavation radius of 3,074mm. A foldable overhead protective structure is mounted on the front of the machine, allowing the fitting of an additional guard to protect the operator when the machine is used with a hydraulic breaker. Caterpillar's work tool division will be introducing a new H25 compact breaker specifically to work with this smaller machine. Auxiliary hydraulic lines with quick disconnect fittings are supplied as standard. A spacious operator area with easy to use controls ensures the 300.9D will be a popular choice with operators of all abilities. The folding structure and operating weight well below 1 tonne, makes the 300.9D easy to transport on a trailer behind a van or truck, while a simple single steel engine cover provides easy access to all service and maintenance points. With an operating weight of 1,325-1,515kg, depending on specification, the Cat 301.4C fits into the line-up below the current 301.8C, extending choice in the popular 1.5 ton market. The machine is available with a choice of cab or FOPS/TOPS canopy, and with standard or extending width undercarriage. Power comes from a 17.9kW engine and the machine boasts a maximum bucket breakout force of 16.0 kN and a stick force of 7kN. The machine has good working range with a maximum digging depth of 2,240mm and reach at ground level extends to 3,640mm. The maximum lift capacity to the front of the machine is 715kg. Lift capacity over the side of the machine is 335kg with the retracted 990mm width tracks, rising to 495kg with the standard 1,300mm extendable tracks. Standard equipment includes extendable undercarriage, single and two-way auxiliary hydraulic lines, a sturdy dozer blade, a suspension seat and a hydraulic oil cooler. The machine will have a bucket linkage that allows the use of a wide range of existing Cat buckets, quick couplers and powered work tools. Tipping the scales at 2,577kg with a canopy and 2,670kg with full cab, the 302.7D CR is the lightest Cat compact radius model, making it easy to transport for a rental company or contractor. Powered by the same proven 17.9kW engine as the 301.4C, the machine boasts a load sensing hydraulic system, providing a maximum bucket force of 22.5kN and a maximum stick force of 21.76kN. The Cat 302.7D CR combines a compact radius design (zero tailswing without counterweight) with a spacious operator environment and easy access to regular service points. Two-way auxiliary lines are standard, equipped with quick disconnects for rapid work tool changeover. A joystick-mounted proportional auxiliary control allows for fine control of a range of powered attachments. The sturdy dozer blade offers added stability when digging, and a float function on the dozer control allows operators to grade and push with confidence. Maximum lift capacity is an impressive 955 kg with the standard long arm and counterweight combination. When lifting over the side the extra counterweight allows a maximum lift capacity of 623 kg at a reach of 2.5 m and ground level. write your comments about the article :: © 2011 Construction News :: home page |