Capital Equipment News

At bauma 2019, Bobcat is launching the new E10e electric mini-excavator, said to be the industry’s first commercially available fully-electric, zero tail swing (ZTS) mini-excavator in the 1-t class.

With no emissions, a low noise operation and a width of just 72 cm, the new E10e can easily pass through standard doors and in and out of lifts, making it ideal for indoor applications such as demolition and basement construction. In addition, by coupling the E10e to an optional external Bobcat super-charger while operators are on normal work breaks, the E10e can operate for a full 8-hour working day.

Bobcat E10e back charging

At the last bauma exhibition in 2016, Bobcat attracted great interest from visitors with the prototype of the E10e. Being one of the pioneers in this area with the E10e, Bobcat has helped to inspire the increasing focus on electric construction machines including excavators and, in the last few years, the industry has clearly started to move in this direction.

The reasons are obvious: not only to meet customers’ preference to be environmentally friendly, but there is a clear and dedicated business need for zero emission and low noise excavators for some specific applications. As well as indoor demolition and basement projects, these include city centre developments, night-time work and contracts in low noise areas such as hospitals, cemeteries, schools and so on. The electric solution solves many of the issues associated with these tasks.

“At Bobcat, we are strongly dedicated to meeting these specific business opportunities and we are aiming to lead the industry in innovation within the mini-excavator segment with our newly developed, zero-emission E10e, based on our legendary E10 ZTS mini-excavator,” says Jarry Fiser, Mini-Excavator Product Line Director, Doosan Bobcat EMEA.

Unique proposition for indoor work

When doing indoor work such as demolition and digging out basements, there are very specific requirements. Until now, there has been no standard OEM solution for such work – many jobs had to be worked on manually with less effective tools or with aftermarket conversions providing third-party machine adjustments (that often did not meet desired standards). The new E10e is a game changer in this area.

Developed at the Bobcat Innovation Centre in Dobris in the Czech Republic, in conjunction with electric vehicle suppliers, the E10e is based on the design of the very successful diesel powered E10 1-tonne mini-excavator, which has achieved sales of over 10 000 units in just 10 years (the E10 is now called the E10z to reflect that it is a ZTS mini-excavator).

The new E10e has the same ZTS profile and identical external dimensions as the standard E10/E10z machine and offers the same or better performance. For example, the E10e offers very low noise levels on site with an LpA of only 64 dBA vs 80 dBA for the standard E10.

Furthermore, all of the systems and components on the E10e have been optimised for work in harsh environments – the patented electrohydraulic powertrain system fully utilises the electric motor capabilities and all electric powertrain components are fully sealed, meeting the IP67 rating and also designed to meet construction equipment requirements for robustness.

Full Working Day on the Job

The E10e has a state-of-the-art Lithium-Ion, maintenance-free battery pack with an advanced management system, designed to fit within the standard machine envelope to maintain the machine’s ZTS profile.

Based on customer studies, Bobcat has optimised the battery pack to provide sufficient capacity to match typical work patterns. Using an external supercharger functionality, the E10e when used with normal work breaks, can operate throughout a full working day (8 hours) and can be fully recharged within 2,4 hours. The new E10e is also easy to maintain and safe to operate – due to the use of only low voltages, there is no need for operators to have special authorisation to work on the E10e.

As the new machine is designed to be used in demanding indoor applications such as breaker work in demolition, it is equipped with auxiliary lines and an efficient oil cooler system for continuous hydraulic breaker operation. The cooling system capacity has been increased to meet extended demolition application requirements.

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