Komatsu is offering a factory-fitted double auxiliary circuit for its MR-3 mini-excavators (PC30/35/45/55MR-3). The circuit can be comfortably controlled by a double slider on the machine’s PPC joysticks

One additional hydraulic circuit can be utilized to operate attachments such as tilt buckets or hydraulic breakers. In this last case, the dedicated selector will be positioned in “hammer mode”, and the on/off switch allows easy and precise operation of the tool with a simple touch. The second hydraulic line, with a lower oil flow rate, is an ideal solution when a rotating function is needed on a roto-tilting attachment or a clamshell bucket, and for demolition equipment.

A simple procedure, backed up by helpful indications on the digital monitor, lets both circuits be set independently (depending on models, maximum 70 l/min on the 1st line and 25 l/m on the 2nd line), for the best match to the attachment’s specifications.