Posted by Brooke Just
Built to deliver an improved customer experience, the new 4-tonne Cat 304 and 5-tonne Cat 305 CR next generation mini hydraulic excavators deliver more power to the pumps, higher bucket breakout forces and deeper standard digging depths to increase performance by up to 20 percent compared to their E2 series counterparts.
The new 304 and 305 CR models are the final machines to be reengineered to the Cat next generation mini hydraulic excavator line concept. From the 1.5- to 10-tonne class models, all 17 – 20 Cat mini hydraulic excavators in the range (depending on region) offer common features and consistent controls layout to simplify training and operator adaptation.
Built with a new reduced radius design, the 304 features a narrow, 1700-mm (66.9-inch) track width, 254 mm (10-inch) slimmer than the 304 E2, for more versatility and access to confined spaces. While narrower, the new 304 design increases performance, balance and stability of the 4-tonne class model. Its reduced radius allows for greater stability, both 360-degree and when traveling with loads, while its extra counterweight option takes the model to an even higher level of stability.
The new engine on the 5-tonne class Cat 305 CR Excavator delivers nearly 9 percent greater power to increase machine performance. Hydraulic system improvements provide higher breakout forces – 49.2 kN (11,061 lbf) bucket, 28.3 kN (6,362 lbf) standard stick and 25.2 kN (5,665 lbf) long stick – to improve digging efficiency in hard rock applications. It also offers 140 mm (5.6-inch) deeper dig depths than the 305 E2, giving it more application flexibility. Its compact radius swing reduces overhang when working to the side, while its 1980-mm (78-inch) track width and new extra counterweight option help to optimize stability and lift performance in confined spaces.
Both excavator models now offer an angle dozer blade option to optimize machine flexibility in backfilling and finish grading applications. In addition to offering ample above- and below-grade travel with standard float function for easy clean-up, the angle blade moves 45 degrees left or right of center. Increasing efficiencies and reducing operator interaction with final grading, angle blade movement is controlled by the right-hand joystick, while the left joystick handles machine drive.
Offerings may vary by region, for more information on the new Cat 304 and 305 CR Mini Hydraulic Excavators can be found by contacting the local Cat dealer or visiting: https://www.cat.com.
