Digging equipment with relative improved hydraulic system

Digging equipment comprising:

• a self-propelled base machine provided with at least one arm supporting at least one digging tool, in turn provided with at least one device for crumbling soil,
• the digging tool being operatively connected to the base machine through a suspending flexible element which can be wound or unwound by means of a winch located on said base machine,
• said base machine further comprising a main power engine for supplying mechanical power required to actuate all hydraulic apparatuses of the digging equipment, and a hydraulic system with two independent and separate hydraulic circuits (S;
• U),
• wherein a first hydraulic circuit (S) is configured to control and supply main service apparatuses of the base machine, the first hydraulic circuit (S) comprising
• at least one service actuator for a movement apparatus adapted to move the digging tool, and
• at least one distributor or control valve for controlling the at least one service actuator,
• wherein a second hydraulic circuit (U) is configured to control and supply main digging apparatuses of the digging tool, the second hydraulic circuit (U) comprising
• at least one digging tool actuator for the device for crumbling soil, and
• at least one distributor or control valve for controlling the at least one digging tool actuator,
• wherein each of said two independent and separate hydraulic circuits (S;
• U) respectively further comprises at least one pump assembly, at least one heat exchanger, and at least one main tank for accumulating oil arranged on the base machine, and
• wherein each of said two independent and separate hydraulic circuits (S;
• U) receives the mechanical power required to actuate each respective pump assembly from the main power engine of the base machine.