Salon innovations powered by electricity


Salon innovations powered by electricity

Zero-emission operation is one of the main trends in the construction machinery industry. Here is a first glimpse of the novelties expected at bauma. The world’s leading trade fair for construction machinery, building materials and mining machinery as well as construction vehicles and equipment will be held from October 24 to 30 at the Munich trade fair site.

To reduce greenhouse gas emissions in line with climate protection goals, more and more construction machines and vehicles are being developed with electric drives. Other benefits are also fueling this trend. For example, electric motors are quiet, which makes them suitable for use in low-noise areas, such as near hospitals or on city construction sites. They also protect operators and the environment from exposure to direct exhaust gases, allowing many work processes to be carried out even in poorly ventilated areas. Another benefit is that electric motors are considered low-maintenance and efficient, meaning they ensure low running and energy costs. It is therefore logical that “The road to zero emissions” is also one of the key topics of this year’s bauma. Many exhibitors have already announced brand new e-solutions for the show.

Reversible vibrating plate with battery
These include the first direct-drive battery-powered reversible vibratory plate. The APU3050e from the manufacturer Wacker Neuson uses the proven hydraulic adjustment system to change direction, as in conventional models. With a working width of 50cm and a centrifugal force of 30kN, the machine is easy to control and has the lowest overall height of any reversible vibratory plate on the market, making it ideal for use in narrow trenches.

Zero-emission compaction with e-tandem rollers
In the future, electrically driven tandem rollers may be the answer wherever emission-free compaction is needed on a larger scale. Hamm AG will present eight models of the HD CompactLine series as a world premiere at bauma. They are powered by a maintenance-free lithium-ion battery with a capacity of approximately 23 kWh. In addition, the energy released by the traction and vibration motors during braking is used in recuperation. The battery has enough capacity for a full working day. The electric drive also significantly reduces noise emissions, which makes the e-tandem rollers suitable for all areas that require particularly quiet compaction. Since these settings also often require a low vibration load, the compaction specialist introduces an electric combination roller with oscillation in addition to the rollers with electric vibration and oscillation.

All-electric compact track loader concept
The T7X, still in the design phase, is the world’s first all-electric compact track loader. Its manufacturer, Bobcat, will use bauma to continue collecting feedback from customers across different segments. Its objective is to be able to better assess the market opportunities for the machine in Europe, the Middle East and Africa. With its 62 kWh lithium-ion battery, the T7X can run continuously for four hours. Its mobile payload is just under 1,400 kg. Unlike all other loaders in the world, the new machine requires virtually no fluids: Bobcat has completely replaced the traditional hydraulic system with an electric drive system consisting of electric cylinders and electric drive motors. The only liquid in the machine is about four liters of environmentally friendly coolant.

All-electric drive concrete mixer
Putzmeister envisions a future with all-electric concrete transport with its iONTRON e-mixer. The vehicle’s battery has a capacity of 350 kWh, which means that one battery charge is enough for five to six trips in urban areas, usually enough for a full working day. The vehicle can simply be recharged if further trips are planned. The blender can charge to full power overnight on a DC charging station. Its virtually silent operation allows unlimited use even in locations with strict noise regulations, a significant competitive advantage when it comes to tenders in metropolitan areas. Rising fossil fuel prices are also making e-drive an economical alternative.

Electro-hydraulic lifting
Tadano’s E-Pack is an electro-hydraulic system with an integrated 32 kW electric motor allowing silent and emission-free operation of the crane. This solution was presented at the last bauma in 2019. At the time, it was only available for one crane vehicle. At this year’s largest trade fair in the world, Tadano will show that in the meantime five of its AC cranes can be ordered with the E-Pack or existing cranes can be retrofitted.

The Japanese manufacturer will also offer a preview of the world’s first all-electric all-terrain crane. The machine is currently in advanced development and is expected to be on the market at the end of 2023. It will be able to travel to and from the site and perform all the lifting there using only the energy supplied by its batteries.

Other exhibitors have already announced new e-machines, but want to wait for bauma to “let the cat out of the bag”. These include the successor model to the 5055e all-wheel drive electric wheel loader from Kramer-Werke GmbH. In addition, the company promises a new electric telescopic loader, without revealing more details for the moment. And that’s another reason why a visit to the Munich Trade Fair in October is well worth your time.

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