These are VERY strong little units. Gas unit, EPA certified 13.5 HP Briggs.

This 1150kg (1.15 ton) gas-powered mini excavator arrives fully assembled and ready to operate with just a key start. Powered by a 13.5 HP Briggs & Stratton engine with EPA certification, this unit delivers impressive digging power in a compact size.
The excavator comes equipped with a hydraulic thumb for enhanced versatility, though the quick attachment is sold separately. It offers a maximum digging depth of 1600mm (5.24 feet) and measures 2550*950*1350mm overall, making it ideal for tight spaces and detailed work.
Described as very strong little units, these mini excavators are built for serious performance despite their compact footprint.