Big value in Caterpillar’s mini excavator 302 CR

First published in bauma Preview - April 1, 2019

Big-model features are now part of Caterpillar’s latest line-up of mini excavators in the 1-2 tonne class 30 series, including the all-new 302 CR.

Caterpillar says that the line-up incorporates industry-first standard features, such as joystick steering (stick steer) and a tilt-up canopy or cab, as well as new options including air conditioning and expandable undercarriages across the range.

The 302 CR is a 2-tonne compact radius machine with either a canopy or cab.

All the new models use the Cat C1.1 engine, a 3-cylinder diesel rated at 14.3 kW, available in configurations that meet EU Stage V emission standards as well as the requirements of less regulated countries. The C1.1 features a power-dense design and delivers consistent performance through a wide speed range. Fuel efficiency is enhanced with engine idle control and automatic shutdown systems.

A load-sensing hydraulic system with an electronically controlled variable displacement piston pump is capable of oil flows to 66 litres/min (17.4 gpm). Flow rates, coupled with high main-relief pressures, provide the new models with the hydraulic capacity to generate high digging and lifting forces, as well as to handle powered attachments.

For added versatility, the standard auxiliary hydraulic system – complete with quick disconnect lines – provides one way, two-way, and continuous flow. Manual couplers, a thumb-ready package and a certified lifting eye are available for all new models. Front shovel operation, a capability that lends an extra measure of precision when digging around utilities, can be accomplished with both pin-on and coupler-mounted buckets.

The cab – standard on the 301.6 and optional on the 301.8 and 302 CR – is pressurised and sealed to reduce dust intrusion and is fitted with a climate control system, with or without air conditioning. The front window slides upward and stores overhead, and large glass areas on the sides and rear of the cab, plus a skylight, provide all around visibility. The operating consoles feature adjustable wrist rests and a suspension seat is available.

A machine security system is standard, available as key with pass code or push-to-start with fob. The Next Generation LCD monitor provides easy-to-read machine information and features a jog dial for easy, ergonomic interaction with the monitor. The machines can also be Bluetooth-enabled through the radio.