Caterpillar has added the model 300.9D VPS (Versatile Power System) to its range of mini hydraulic excavators. The machine, in conjunction with its separate hydraulic power unit, works either with its diesel engine or from a remote electrical power source, with no loss of performance.

Having an electrical drive system remote from the machine enhances utilization, according to Caterpillar. The 300.9D VPS can be used alone for regular applications or with the hydraulic power unit when the job requires low noise and zero emissions. 

The unit features 13 net hp, stick force of 1,012 pound-force (lbf), bucket force of 2,000 lbf, dig depth of 68 inches, and dump height of 80 inches. Its operating weight is 2,399 lbs.