Kobelco excavator gets small in a big way

  • 28-Mar-2011 12:13 EDT
Kobelco_55SRx_trailer.JPG

Kobelco's 55SRx compact excavator is said to offer the power, performance, and productivity of a midsized excavator but with a size and height that make it easy to transport.

With the 55SRx, described as "a true short-radius excavator," Kobelco Construction Machinery America has expanded its compact excavator product line into a new class size.

Designed for work in tight spaces, such as along foundations, the new machine includes some of the same features found on larger, full-size Kobelco machines, including the hydraulics system and the powertrain. It also uses structural components found on larger machines, such as a cast center swing foot and heavy-duty reinforced boom and arm.

Featuring a large boom and arm for a wider operating range, the Kobelco 55SRx delivers 11,240 lb (50.0 kN) of bucket digging force. Rated at 39 hp (29.3 kW), with an operating weight of 12,295 lbs (5,577 kg) and a dig depth of 12.8 ft (3.9 m), the machine is engineered for commercial and residential construction, underground, landscaping, and demolition projects. With its compact size and a cab height of 8.4 ft (2.55 m), the 55SRx is easy to transport between job sites.

The compact excavator is equipped with a standard two-way backfill dozer blade featuring a 38° approach angle for finish grading. An optional four-way dozer blade is available for increased backfill and grading ability.

Kobelco says the rear swing radius and large counterweight gives the 55SRx increased stability for using larger buckets and lifting heavier loads, allowing the machine to maintain the dimensions of a short-radius excavator while providing the stability of a conventional excavator.

For easy operation of thumb or grapple buckets, the 55SRx includes a factory-installed attachment bracket for hydraulics, making it “thumb ready.” The compact excavator also includes piping for secondary hydraulics to handle a number of attachments or provide a dedicated circuit to a thumb bucket. The increased flexibility on the job site makes the machine particularly suitable for rental applications, says the company.

The 55SRx has a ROPS/FOPS cab with an operator environment similar to a full-sized conventional excavator. It features a larger front window and wider rear window for optimum visibility and performance. The fully retractable front window improves air flow and allows the operator to communicate more effectively with co-workers near the machine. Air-conditioning is standard.

In addition to the 55SRx, the Kobelco compact excavator product line includes the 17SR, 27SR, 35SR, and 50SR.

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