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Caterpillar Expands Its Mini Excavator Range

These three mini-excavators show that one size does not fit all.

Thu March 28, 2013 - National Edition
Construction Equipment Guide

Caterpillar has added three models with operating weights of 2,061 lbs. (935 kg), 3,340 lbs. (1,515 kg ) and 5,886 lbs. (2,670 kg).
Caterpillar has added three models with operating weights of 2,061 lbs. (935 kg), 3,340 lbs. (1,515 kg ) and 5,886 lbs. (2,670 kg).

Caterpillar has added three models with operating weights of 2,061 lbs., 3,340 lbs. and 5,886 lbs.

The 300.9D weighs in at just 2,061 lbs., making it the smallest machine in the Cat range. With an overall width of just 28.7 in., this machine is capable of driving through a standard doorway, providing easy access to the most confined job sites.

A powerful water-cooled three-cylinder diesel engine produces 18.4 hp (13.7kW); along with a twin gear pump hydraulic system creates a maximum stick breakout force of 1,011 lbf (4.5kN) and a maximum bucket breakout force of 2,000 lbf (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 69.4 in. and a maximum excavation radius of 121.7 in.

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 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.

301.4C Boosts Key Rental Sector

With an operating weight of 2,921 to 3,340 lbs. , 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 24 hp (17.9kW) engine and the machine boasts a maximum bucket breakout force of 3,597 lbf (16.0 kN) and a stick force of 1,596 lbf (7 kN). The machine has a maximum digging depth of 88.2 in. and reach at ground level extends to 145.7 in. The maximum lift capacity to the front of the machine is 1,576 lb. Lift capacity over the side of the machine is 739 lb. with the retracted 39 in. width tracks, rising to 1,091 lb. with the standard 51.2 in. 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.

302.7D CR Joins Growing Compact Radius Line

Tipping the scales at 5,681 lb. with a canopy and 5,886 lb. 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 24 hp (17.9kW) engine as the 301.4C, the machine boasts a load sensing hydraulic system, providing a maximum bucket force of 5058 lbf (22.5kN) and a maximum stick force of 3,462 lbf (21.76 kN).

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 2105 lb. (955 kg) with the standard long arm and counterweight combination. When lifting over the side the extra counterweight allows a maximum lift capacity of 1,373 lb. at a reach of 98 in. and ground level.

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