Kobelco SK45SRX-6E

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Full-Size Performance, Short-radius Agility and Quiet Operation


The new KOBELCO SK30SR / SK35SR expands the horizons of mini excavators, and offers practical performance features 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 Revolutionary Integrated Noise and Dust Reduction Cooling System
The iNDr+E system on the SK45SRX/ SK55SRX 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, but also directs the muer exhaust underneath. Small holes on the muer disperse and slow down the exhaust. The exhaust is further slowed down and cooled through the oset duct and then discharged into the atmosphere.


Wide Working Range
A larger boom and arm are provided as standard equipment to ensure a wider working range.
Short Tail Swing
The compact tail swing improves operating efficiency in limited space.
Energy Conservation Mode
The SK45SRX/SK55SRX adapts S mode which enables 25 percent less fuel consumption compared with the previous model.
One Touch Deceleration
The SK45SRX/SK55SRX features one-touch deceleration. It allows easy switching to an idling mode, reducing fuel consumption while the machine is at rest. Under complete control of the operator.

Easy Transportability
With an overall cab height of 8' 3" (2,510 mm), the machine is designed for easy transport.

Integrated-Flow Pump System
The instant the machine begins to dig. extra output from the third pump (which otherwise powers the swing and dozer circuit) is directed to the arm circuit and boom circuit (raise) for added power. This ensures fast and smooth arm and boom raising operation even under heavy loads.

Large Capacity Engine
The large-capacity engine meets Tier IV final requirements and packs plenty power for outstanding hydraulic performance.

Diesel Particular Filter (DPF)
DP filter greatly reduce PM emission. Carbon builds up as soot on the diesel particulate filter and is burned off at high temperature.


Easy Daily Maintenance
Start-up checks are essential for safe and reliable machine operation. All start-up checks can be performed at ground level, with an easy-to-understand layout and cover design that simplify access and save time.


Spacious Work Environment
The newly designed, rectangular cab is over 32 inches wide, with optimized control layout for comfortable, easy operation. A greater window area further improves visibility. A clear view is provided at the rear, and there’s also more floor space, with a seat that slides further to ensure plenty of leg room.

Easy Access
A wide-opening door and a left-hand tilting control console with a safety lever that rises high,make it much easy for operators to enter and exit and the cab.

Plenty of Foot Room
Generous space below, eases facilitates pedal operation.

Excellent Front Visibility
Wider front window ensures an open, panoramic view.

Work Light
Lighting installed on the underside of the boom minimizes the risk of damage to it.

Operator Safety
Reliable Cab Structure
The high-strength cab meets ROPS and FOPS standards for greater operator safety.

Exclusive, Newly Designed ROPS/FOPS Canopy
The high-strength canopy meets ROPS and FOPS standards for greater operator safety.


Reliable Construction
The boom, arm, and swing bracket all have large cross-section designs for added attachment strength.


Model SK45SRX


Travel Speed 2.5 mph (4 kph) / 1.4 mph (2.2 kph)
Swing Speed 8.5 rpm
Drawbar Pulling Force 12,390 lbf (55.1 kN)


Operating Weight 10,300 lbs (4,670 kg)


Model Yanmar 4 TNV 88
Max. Torque 97.3 lbf (131.8 Nm)
Displacement 133.6 in³ (2.189 ltr)
Fuel Tank 19.8 gallons (US) (75 ltr)


Pump 2 Variable axial piston + Gear
Max. Discharge Flow 13.2 gallons(US)/min (49.9 ltr/min)
Dozer Blade Blade Height: 14" (345 mm)
Blade Width: 6' 5" (1,960 mm)
Max. Raise Height: 15" (375 mm)
Dig Depth: 15" (385 mm)


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