Kobelco has taken the next evolutionary step by packing even more digging power and practical performance features into the SK45SRX while maintaining a short tail swing. The new Energy Conservation Mode saves even more fuel, and Kobelco’s proprietary iNDr Cooling System ensures quiet operation, protection from dust, and easy maintenance.

For greater operator comfort and safety, the rectangular cab design offers plenty of room and an unobstructed view. It all adds up to enhanced full-size performance, short-radius agility and a low-noise environment, with exceptional performance features and a full range of value-added functions

The iNDr system on the SK45SRX features air intake at the front of the machine and air exhaust underneath. It functions in the same way as the iNDr System on the SR series machines. The stainless-steel filter is extremely effective against dust, with 30-mesh wave-type screen that removes tiny dust particles from the intake air and delivers amazingly quiet operation. The highly airtight engine compartment and the offset duct contribute to noise reduction.

The SK45SRX/SK55SRX features one-touch deceleration, allowing easy switching to an idling state, reducing the fuel consumption while the machine is at rest.


Transport Dimensions

Length, Width & Height

5.32 x 1.96 x 2.53 m

Operating Weight

4,660 kg

Refilling Capacities

Fuel Tank

75 L

Hydraulic Oil Tank

27.9 (57.7) L

Working Range

Max. Digging Depth

3.44 m

Max. Digging Reach

5.9 m


Rated Power Output

29.1 kW

Rated Torque

139.1 Nm

Breakout Force

Bucket Digging Force

35.2 kN

Arm Crowding Force

20.9 kN

Hydraulic System

Max. Pump Flow

2 x 49.9 + 33.8 + 10.8 L/min

Standard Auxiliary

N&B + Tilt Piping

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