JCB has added a 9 tonne zero tailswing midi excavator to its rapidly expanding midi excavator range, to meet growing demand from customers across Europe. The 90Z-1 boasts a more powerful engine than the recently released 8.6 tonne 86C-1, with a larger dig end and increased hydraulic capacity to further boost performance.

As with all models in the growing range of JCB midi excavators, the 90Z-1 benefits from a revised H-design undercarriage, robust steel body panels, a spacious operator environment and a powerful Stage IIIB/Tier 4 Final engine, that delivers increased efficiency and lower ownership and operating costs for the customer. The machine is powered by a JCB by Kohler diesel delivering 55 kW. This drives through industry-leading Bosch Rexroth hydraulic valves,  Nachi slew motors and track drives.

With an operating weight of 9,733kg, the excavator shares the same width and height over the cab as the lighter 85Z-1/86C-1. The counterweight remains inside the width of the undercarriage, making it a true zero tailswing machine. The all-steel bodywork provides space for the more powerful engine, with increased hydraulic pump capacity and larger hydraulic cylinders resulting in superior bucket tearout and dipper arm tearout forces.

Longer digging equipment provides the 90Z-1 with maximum digging depth 4,153 mm, a dump height of 5,420 mm and a reach at ground level of 7,389 mm.  A patented reduced loss hydraulic system operates with reduced back pressure, eliminating parasitic losses, while this hydraulic system puts less demand on the engine, reducing fuel consumption. All hoses feature O-ring face seal technology and are colour coded for rapid identification.

Digging equipment has individual hydraulic piping for easy maintenance and hose replacement. Twin auxiliary circuits will be available and operators will be able to programme individual hydraulic flow settings for attachments through the in-cab monitor, making it easier and faster to change between powered attachments such as breakers and grabs.

Find out more in the next edition of Diggers and Dozers magazine.