At the International Defence Industry Exhibition (MSPO) 2025 in Kielce, held from September 2 to 5, 2025, the Polish company P.H.U. Lechmar and the French firm H2X-Defense unveiled Hermione – an innovative unmanned ground vehicle (UGV) that features a hydrogen propulsion system. This system offers extended endurance and low-emission operation. The technology demonstrator responds to the needs of armed forces in many countries searching for new solutions for both manned and unmanned land vehicles, as well as for the transport, storage, and distribution of electricity on the battlefield.

P.H.U. Lechmar has been a licensed specialty trading company since 2014. Founded 20 years ago, the firm specializes in procurement, delivery, and logistics of military and defense equipment, meeting the highest standards of security and reliability, as confirmed by the Ministry of the Interior concession and WSK, ISO, AQUAP, and NCAGE certifications.

Thanks to extensive international partnerships worldwide, PHU Lechmar grants access to modern weapon systems and military equipment. The company’s range includes a full spectrum of solutions for the armed forces: from all types of conventional weapons and ammunition, including vehicles and military hardware, to dual-use products. It specializes in light weapons such as grenade launchers, automatic firearms, and anti-tank systems, as well as artillery systems, delivering howitzers, mortars, and multiple rocket launchers with their associated ammunition.

With years of experience, Lechmar efficiently supports and integrates solutions compliant with NATO standards, as well as systems from the former Eastern Bloc.

One of PHU Lechmar’s partners is the French company H2X-Defense, with which Lechmar jointly demonstrated the Hermione UGV at MSPO 2025 – a modular, hydrogen-powered, wheeled unmanned ground vehicle.

The platform was demonstrated in a UAV carrier setup, but its modular design enables adaptation to a variety of tasks on the modern battlefield: from supporting soldiers through integration with remote-controlled weapon systems, to reconnaissance with an advanced sensor suite, and to transport and logistics. The payload capacity of the shown version is 300 kg, with additional configurations offering 600 kg and up to 2 tons.

Among the many unmanned systems showcased in Kielce, Hermione UGV stands out with its distinctive propulsion system. It uses hydrogen fuel cells stored in TPED-certified cylinders. The energy produced powers electric hub motors (8 kW each in the demonstrator version). Refueling takes about three minutes, or the cylinder can be replaced. The declared operating time is up to 20 hours, supported by 25 kWh batteries.

The vehicle’s top speed is 24 mph, and its all-wheel drive ensures mobility over rough terrain. It measures 3.3 meters in length, 1.85 meters in width, and 1.4 meters in height (excluding mission systems), with a ground clearance of 300 mm and a curb weight of 700 kg in the Kielce configuration. Its steering system supports all standard driving modes typical of modern vehicles in this class.

It is worth noting that PHU Lechmar’s French partner has also developed a hydrogen-powered field generator – the G-15/050, available in variants with 20–40 It is worth noting that PHU Lechmar’s French partner has also created a hydrogen-powered field generator—the G-15/050, available in versions with 20–40 kW output and up to 25 kWh capacity, which offers a complementary solution for unmanned systems.

The presentation of the Hermione UGV at MSPO 2025 highlights the increasing role of Polish private companies in the defense sector, which – through international cooperation – are more frequently offering innovative solutions to meet the challenges of the modern battlefield.

More information:

Karolina Siudyła

k.siudyla@lechmar.com.pl

+48799023465