Caterpillar Next Gen Mini Excavators

Caterpillar 302.7 CR, Cat 303 CR, and Cat 303.5 CR mini excavators are built on the company’s Next Generation platform and replace existing models 302.7D, 303E, and 303.5E2.

Operating weights are in the 2.7-to-3.5-tonne range, and the mini excavators are powered by 24.7-horsepower engines. Dig depths range from 96.5 inches to 110.6 inches.

Cat Mini Excavator Features

Stick steer
Cruise control
Operator adjustable settings
Tilt-up canopy or cab as standard

Daily maintenance checks can be made from ground level through side doors, and the tilt-up cab design provides access to components for servicing. Service intervals have been increased over the predecessor Cat mini excavator models.

Hydraulic system upgrades improve lifting performance and cycle times, and customizable operator settings improve efficiency.

The Cat excavators have compact radius swing. Fixed undercarriage widths for the Cat 302.7 CR, Cat 303 CR, and Cat 303.5 CR are 59.1, 61.0, and 70.1 inches, respectively. The Cat 302.7 CR has an optional expandable undercarriage the decreases the width to 53.3 inches and expands it to 70.1 inches.

Interchangeable counterweight packages offer the balance between low ground pressure and lifting performance. The “light” counterweight option adds 221 pounds to machine weight; the “extra” adds 551 pounds.

All three Cat mini excavators offer both standard- and long-stick configurations. Standard digging depths range from 96.5 to 110.6 inches, and the long stick configuration allows the machines to dig to depths of 104.3 to 122.4 inches.

Load-sensing hydraulics with variable displacement pump provides oil flow reaching 26 gpm. High main-relief pressures, coupled with flow rates, generates the hydraulic capacity for high digging and lifting forces and more efficient use of a range of attachments. Complete with quick-disconnect lines, the standard auxiliary system provides the choice of one-way, two-way, or continuous flow.

Cat Stick Steer System simplifies machine control, and, at the touch of a button, the operator switches from conventional lever/foot-pedal steering controls to low-effort joystick operation. Travels speeds reach 2.8 mph, and standard cruise control minimizes operator interaction when traveling longer distances between work locations.