SPECS / COMPARISON

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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

Feature	Komatsu PC40MRX-1Excavator	Caterpillar 304 CRExcavator
Excavator Type	Mini Excavator	Mini Excavator
Weight	4491 kg	4489 kg
Horsepower	28 kW	27 kW
Digging Depth	341 cm	335 cm
Max Digging Depth	341 cm	335 cm
Max Loading Height	353.6 cm	—
Max Reach Along Ground	551.7 cm	—
Max Digging Reach	335.3 cm	—
Max Vertical Wall Digging Depth	271.3 cm	—
Overall Length	524.3 cm	—
Track Length	2316.5 cm	—
Length of Track on Ground	195.1 cm	—
Reference Bucket Capacity	0.2 m2	—
Max Bucket Capacity	0.2 m2	—
Min Bucket Capacity	0.1 m2	—
Ground Clearance	33.5 cm	—
Tail Swing Radius	106.7 cm	—
Overall Width	198.1 cm	—
Engine Make	Komatsu	—
Engine Model	3 D84E	3013
Net Power	28 kW	27 kW
Gross Power	30.6 kW	28 kw
Rated Power	2500 RPM	—
Hydraulic Pump Flow Capacity	110 LPM	—
Hydraulic System Capacity	68.1 l	—
Relief Valve Pressure	260 Bar	—
Operating Weight	4491 kg	4489 kg
Max Travel Speed	4.3 km	4.7 km
Swing Speed	9 RPM	Machine 9.3 RPM
Cab Height	259.1 cm	—
Fuel Capacity	60.2 l	—
Ground Pressure	26.2 kPa	—
Displacement	1995.9 cc	1753.4 cc
Shoe Size	40.1 cm	—
No of Cylinders	3	—
Max Cutting Height	521.2 cm	—
Track Gauge	158.5 cm	198.1 cm
Removal Counterweight Clearance	64.0 cm	—
Blade Lift Height	—	43 cm
Stroke	—	9.4 cm
Bore	—	7.9 cm
Boom Swing(Left)	—	80 °
Boom Swing(Right)	—	50 °
Source	heavyequipments.net archive (imported 2026-10)	heavyequipments.net archive (imported 2026-10)

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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051