The smallest  excavators (with seats for operators) indeed are small. They are narrow and short enough to be driven through doorways.
Despite it’s size this machine is very capable of most tasks  you would find in a restricted access environment. 
Smart Display Meter, Keeping track of the vehicle's condition at all times, Ensure a smooth operation
Rearward-sliding design, Increased counterweight and digging force, Digging without cocking the head
 
Specification:
Track length: 1210mm
Rated power: 7.6KW
Track width: 180mm
Travelling speed: 2.1KM/H
Bucket capacity: 0.02m³
Slewing speed: 9-11RMP
Turning radius: 980mm
Digging depth: 1450mm
Digging height: 2650mm
Unloading height: 1700mm
Weight: 980KG
Engine: Kopper 192F