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Hubtex and Intis launch an inductive charging system

Martin Schrüfer,

The future of AGV solutions lies in energy management

The efficient use of Automated Guided Vehicles (AGV) in intralogistics is largely dependent on the charging technology. The aim is to keep the energy supply of the vehicles cost and time efficient and to maximize the internal material flow. Hubtex therefore relies on a partnership with Intis.

With the inductive charging system from Intis, the PhoeniX AGV can be charged with a 48V lithium-ion battery with a charging current of 400A without contact and without cables. © Hubtex and Intis

With the PhoeniX AGV, Hubtex has introduced the world's first fully automated electric multidirectional sideloader for handling long, heavy and bulky goods. With the inductive charging system from Intis, the vehicle can be charged with a 48V lithium-ion battery with a charging current of 400A without contact and without cables. The concept is transferable to all Hubtex vehicles with electric drive.

Energy management moves into focus

Due to the continuously growing requirements in intralogistics, energy management is becoming increasingly important in order to achieve time and cost savings. For a maximally economical AGV solution, it is important to determine the optimum charging system.

Charging pads on the vehicle automatically interact with charging plates on the floor or on the walls as soon as the vehicle is positioned accordingly. © Hubtex and Intis

From Hubtex's perspective, stationary charging has disadvantages in terms of costs and space in the long term: manual charging is the most cost-effective solution, but is also dependent on the reliability of employees. With an exchangeable battery, users benefit from a shorter dwell time of the vehicles when changing the battery, but require a corresponding changing infrastructure and personnel. Although an automatic battery changing station can reduce the number of vehicles required in many cases, it must also be taken into account in the design.

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Inductive charging system delivers maximum performance

For Hubtex, inductive battery charging for AGVs therefore makes the most sense: charging pads on the vehicle automatically interact with charging plates on the floor or on the walls as soon as the vehicle is positioned accordingly. "Together with Intis, as a specialist in inductive charging technology, we are focusing on a fully autonomous overall concept, which we believe works best with a combination of lithium-ion batteries and an inductive battery charging system," says Michael Röbig, energy management expert at Hubtex.

"In the past, maximum charging performance was mainly achieved with wired chargers," says Röbig. "What's new now are inductive fast charging systems, which ensure a fast charging time and therefore high device availability thanks to the high charging currents."

The compact charging station can be conveniently placed in the respective warehouse or production area; for example, production-related waiting times can be used for charging. The user can access data such as capacity, status and charging time at any time. Inductive charging is maintenance-free, resistant to vandalism and saves resources thanks to the smaller lithium-ion batteries. It also reduces the cost of supplying energy to the charging stations.

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