We will exhibit at the 9th Railway Technology Exhibition 2025.

Leave the development, design, and manufacturing of custom industrial power supplies to us.

Our company designs and develops custom power supplies for the railway industry. Custom power supplies are specially made power sources tailored to the customer's equipment and specifications, capable of meeting various demands that commercial power supplies cannot, such as harsh environments, packaging, precision, lifespan, external signals, external noise, and small lot production. In particular, power supplies used in the railway industry often require compliance with vibration standards and long lifespans, leading to the adoption of custom power supplies across a wide range of applications. [Reasons for Choosing Us] ■ Development of custom power supplies compliant with JISE4031 (vibration standards for railway vehicles) ■ Development of custom power supplies in accordance with IEC 62236 (railway EMC) ■ Development of custom power supplies that combine long lifespan and high durability *For more details, please refer to the related links or feel free to contact us.

• Power Supplies

Manufacturing various control devices and control power supplies essential for the safe operation of railways! We provide products with long life, high reliability, and excellent environmental resistance, enhanced with your desired features!

We manufacture various control devices and control power supplies essential for the safe operation of railways. We provide products with the desired functionalities, featuring long life, high reliability, and excellent environmental resistance. In addition to standard products such as railway control power supplies, level crossing control devices, track switch control devices, and signal light control devices, we are developing high-functionality products requested by our customers. 【Examples of Products for Railway Business】 ■ On-board wide-range input DC/DC power supply Integrates multiple models with DC input voltages of DC24V/48V/72V/110V into one unit. It supports the input voltage automatic switching function to accommodate the usage voltages of various countries. ■ DC/AC sine wave inverter power supply Inverter power supply for driving power protection devices within substations, equipped with multiple functions such as AC sine wave output and multiple channel outputs. ■ DC power supply for communication base stations Based on the power supply of conventional domestic models, it is compatible with various international standards, reducing redevelopment costs by leveraging the design of existing models. *For more details, please contact us or refer to the PDF download.

• Power Supplies

Introducing our achievements in customizing DC/DC converters built into railway safety devices!

We would like to introduce a case study of the design and development of a "DC/DC converter" built into a railway safety device that our company designed and developed. Initially, we planned to use standard products upon receiving the design request for the safety device. However, the customer expressed a desire to "also pass the device's signals through the cable supplying voltage to the device," which led them to consult us for a custom product. We designed and developed a converter that meets the customer's requirements, and they were very satisfied with the result. [Requirements] - The customer wanted to pass the device's signals through the cable supplying voltage to the device. - They wanted to supply input voltage to a separate circuit. - They needed a converter of an appropriate size that matches the device. - They wanted the specification to allow for power supply from a battery to continue operation even in case of abnormalities (such as power outages). *For more details, please refer to the PDF document or feel free to contact us.

• converter

No manual switching of the input power supply voltage! Continuous input is achieved through innovations in the control circuit.

This is a case study of a DC/DC converter (module for VME 3U size) that supports ultra-wide input. At the customer's request, they wanted to cover multiple models with DC24V/48V/72V/110V, but due to cost issues and the complexity of purchase management, they consulted about wanting to consolidate into one model. Additionally, for overseas products, it was necessary to switch control circuits for each input voltage range. By innovating the control circuit, we achieved continuous input of DC24V/48V/72V/110V without the need for manual switching of the input power supply voltage. 【Case Overview】 ■ Application: Railway safety equipment ■ Input voltage range: DC24V/48V/72V/110V (DC16.8V to 138V) ■ Output specifications: 3.3V/10A ■ Number of channels: 1 channel ■ Efficiency: 65% or more ■ Size: 40W × 129H × 233D ■ Applicable standards: JIS E 5006, JIS E 4031, IEC62236-3-2, IEC61000-4-2, IEC61000-4-11, JIS C 60068-1, VME compliant, etc. *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

● To determine the sealing and waterproofing of sealed products based on pressure changes, it is not necessary to conduct tests that involve spraying water on the product or immersing it in water. ● Once the product is placed in a dedicated fixture within the inspection device, waterproofing can be quantitatively confirmed through automatic measurement. ● The target product size is W 300 × D 210 × H 100 mm or smaller. ● The target products include automotive cameras, smartphones, ECUs, small motors, and other packaging containers, and are effective for any products that require confirmation of sealing, waterproofing, and airtightness. ● For product specifications and details, please contact us.

In battery manufacturing lines, if components containing copper are used, there is a possibility that metal powder may mix in, dissolve, ionize, and pass through the separator, causing a malfunction that connects the positive and negative electrodes. Such minute metal powders may not be detected during pre-shipment inspections, and even if they are found, they can lead to various issues, such as the need to increase inspection processes to detect them. Therefore, Fukuda has developed a copper-free (all stainless steel) air leak tester that can be safely used in the production lines of battery manufacturers and secondary battery manufacturing equipment manufacturers. For product specifications and details, please refer to the "Related Product Information" and "Related Catalogs" below.

This is an air leak tester for battery cases of electric vehicles (EVs). The battery case has the characteristic of being "large with a significant internal volume, and its structure may deform due to internal pressure." As a result, air leak testing generates "noise caused by its large size and capacity" and "noise caused by expansion or deformation due to internal pressurization." To mitigate this noise, this device features a newly developed smoothing function and a linear fitting correction function used in combination during measurement. Additionally, to achieve low-pressure control that is difficult to manage and to expand flow for large volumes, we provide a bypass box (CBU-600) equipped with an electro-pneumatic regulator for precise pressure control and a pressurization valve with a large effective diameter to supply high flow rates. Measurement methods: Work-Work comparison, Work-Master comparison, Fixed Master comparison Measurement pressure range: 10 kPa, 20 kPa, 50 kPa (depending on specifications) Gauge pressure sensor accuracy: ±2% F.S. Differential pressure sensor accuracy: ±0.5% F.S. Group settings: 0 to 31 groups Power supply voltage / Power consumption: AC100 to 240 V / 100 VA

Fukuda's new flagship model. - Masterless type (FLA-0200 series) - General type (FLA-0201 series) Two models of air leak testers. With the mastering correction function, high-precision measurements can be achieved in a short time. Please take a look at the catalog.

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!