Electrical machinery program further expanded

Bobcat has introduced a number of interesting electric excavators and compact loaders to the market in recent years, and the plan is to steadily expand the range of zero emission machines. The E19e, the second electric excavator after the E10e, has been available since last year. In addition, the all-electric T7X and S7X compact loaders were presented in recent years. They were developed for the U.S. market, but there are plans to sell both machines in Europe as well.

According to Scott Park, CEO of Doosan Bobcat, the development of electric machines is a high priority. "We develop our electric machines not only with sustainability in mind," he says. "The second principle is that they have to be powerful and reliable enough to handle all common construction, demolition and landscaping jobs. So in addition to zero emissions and low noise, our electric machines must provide at least the same performance and uptime as traditional diesel machines. Important, additional benefits are a healthier and more comfortable working environment for the operator and great serviceability."

The Bobcat E10e was one of the first all-electric mini-excavators available on the market. More than 10,000 have since been sold worldwide. The E10e is a 1 tonne zero tail swing (ZTS) mini-excavator. With a width of only 72 cm. and a collapsible Tip-Over Protective Structure, it can easily pass through doors and into elevators, making it ideal for use in hard-to-reach and confined spaces. The patented electro-hydraulic drive system takes full advantage of the electric motor's capabilities. The noise level of the E10e is very low with an LpA of only 64 dBA versus 80 dBA for the standard E10.

The development of the E19e made grateful use of the experience gained from the E10e. For example, the battery is built with the same components, but has more power. The E19e delivers 17.3 kWh; compared to 11.5 kWh for the E10e. The battery capacity is 3.5 hours and the noise level for the driver is only 70 dBA. The E19e can be charged during work breaks with a super-fast charger. That means it can be used all day for most common applications. 

The E19e was designed with driver comfort in mind. There is more space and, thanks to the conveniently placed pedals and joysticks with thumb controls for the AUX1 and boom adjustment functions, all controls are within easy reach of the operator. The low-noise and emission-free E19e provides a healthy and comfortable working environment and increases operator productivity on the job site. 

The new Bobcat E19e has the same profile and external dimensions (with a width of 98 centimeters) as the popular diesel version of the E19. It also delivers similar performance to the diesel version in terms of stability, lifting capacity and breakout forces. The constant torque curve - a typical feature of the electric drive - ensures reliable and powerful operations. The E19e and the E10e can be used for every conceivable job thanks in part to the extensive range of Bobcat attachments. 

With the T7X and the S7X, Bobcat has developed the first all-electric compact track and wheel loaders. Because the electric loaders have been redesigned to optimize electric drive, they are more powerful than comparable diesel versions. The machines are clean and quiet and have no hydraulic systems or parts that cause vibration. 

The traditional, hydraulic working group in the T7X has been replaced by a drive system with electric cylinders and electric drive motors. This also means that - with the exception of 1 liter of environmentally friendly coolant - the machines no longer use fluids or oil, reducing operating operational costs. 

The heart of the T7X is a powerful lithium-ion battery with 62 kW of power. An intelligent power management system regulates power depending on the load. The S7X wheeled skid-steer loader has 60.5 kWh lithium-ion battery and is equipped with electric drive motors and ball screw actuators for lifting and tilting functions. Together, the battery and electric drive train provide incredible performance, with instant torque as much as three times that of traditional chargers. Depending on the application, the S7X can operate up to 8 hours on a single charge, allowing most operators to work a virtually full day with the machine.