These three industrial excavator arm models have been specifically designed for installation on skid steer loaders equipped with a door. They are supplied as standard with a 7-section electro-proportional modular valve with flow sharing technology, typical of advanced pre- compensated load-sensing systems. This feature ensures smooth and predictable simultaneous movements, ideal for complex operations, and significantly improves the manoeuvrability of the attachment, making the operator’s work easier and more precise. The standard equipment is completed with a radio remote control for wireless operation, thus avoiding the need to work with the door open while directly operating the levers of traditional control valves. Each model is already prepared for the installation of optional features [7] and [8]. All other hydraulic characteristics and functions of the three models in the range remain the same as those of the E-INd arms.