ROBODEX aims to realize hydrogen supply in small batches, the first in Japan*. Mobile Filling Truck Capable of Filling Hydrogen Fuel Cell Drone Cartridges at High Pressure mobile filling truck that can fill cartridges for hydrogen fuel cell drones at high pressure after two years of development.

ROBODEX CORPORATION (Head office: Yokohama, Japan; President: Daisuke Kaiou), a developer and seller of industrial drones, completed in February 2025 a mobile filling truck capable of filling cartridges for hydrogen fuel cell drones at high pressure after two years of development.

*Company survey

Truck

Boosted-pressure filling of hydrogen into small cartridges is a special process even for existing industrial gas companies, and until now required one week to 10 days of work, including pick-up and delivery. Mobile hydrogen filling trucks can fill cartridges on site in a short time. For example, a 4.7-liter cartridge for a drone can be filled with about 20 cartridges.

The only fuel cell drone in Japan

　We support development, manufacturing, sales, licensing support, operation, and even hydrogen supply.

We were already the only company in Japan to develop, manufacture, license, sell, teach, and maintain hydrogen fuel cell drones in 2019, and now all the elements are in place to make hydrogen supply possible. Compared to battery-powered or gasoline hybrid drones, hydrogen fuel cell drones have the environmental advantages of reduced greenhouse gas emissions, as well as longer flight times and expanded payload capacity.

In addition to the hydrogen drone business, we will develop a new business of filling small cartridges with hydrogen as a new business in the future. The small cartridges can be used to supply hydrogen to hydrogen micro-mobility, which is being developed in the future. In particular, the use of hydrogen fuel cells is attracting attention. When hydrogen fuel cells are used in power generators, there is no odor and noise reduction can be expected compared to conventional power generators. In addition, fuel cells do not emit CO2 or other greenhouse gases and can be used in closed spaces such as tunnels and underground.

As a pioneer of hydrogen fuel cell drones, we will continue to accelerate the development of the hydrogen drone business in Japan and overseas by enabling longer flight times as well as the utilization of hydrogen, aiming for an early hydrogen society by making hydrogen supply possible.

Mobile Filling Truck

Vehicle: Isuzu Forward 4-ton truck

Gross weight : 8 tons

Explosion-proof area equipment: Hydrogen pumps and detectors

Mechanical area equipment : Generator, oil pump, cooling system

Maintenance area : Hydraulic table and cabinet

Hydrogen storage : 3 containers of 7m3/cubic meter

Displacement gas ：Nitrogen

Maximum filling pressure ：35MPs

ROBODEX Company Profile

Company Name ： Robodex Corporation

Representative: Daisuke Kaiou, President and Representative Director

Location ： 2176 Kamikawai-cho, Asahi-ku, Yokohama-shi, Kanagawa

Website : https://www.robodex.net

Establishment ： June 20, 2019

Business : Research, development and sales of industrial drones and hydrogen refueling services