クマガイ特殊鋼 Company Overview

At Kumagai Special Steel Co., Ltd., we have newly introduced a 20kW high-output fiber laser cutting machine with the aim of improving processing capabilities and production efficiency. The previously used 8kW laser cutting machine primarily targeted steel plate cutting up to about 25mm thick, but the newly introduced 20kW laser can handle steel plates up to 40mm thick, significantly enhancing our capability for thick plate processing. Fiber laser cutting machines do not require the replacement of optical mirrors or discharge tubes compared to CO₂ lasers, which leads to a reduction in running costs. Additionally, the increase in output power is expected to improve cutting speed, thereby shortening cutting time and enhancing processing capacity. Furthermore, laser cutting is a processing method that does not produce direct CO₂ emissions, contributing not only to increased productivity but also to reduced environmental impact. The equipment we have introduced will achieve stable cutting quality in new thickness ranges. At Kumagai Special Steel, we will leverage this equipment to further strengthen our cutting capabilities for special steel thick plates, particularly high-tensile steel WEL-TEN and abrasion-resistant steel plates ABREX. We will also flexibly respond to small lot processing of various types and continue to invest in equipment and improve our technical capabilities as a processing partner that supports our customers' manufacturing.

Kumagai Special Steel Co., Ltd. has been selected as an "Aichi Brand Company" certified by Aichi Prefecture. The Aichi Brand Company system recognizes companies within Aichi Prefecture's manufacturing sector that possess unique technological capabilities, product strength, management foundations, and brand power, and can be proudly showcased both domestically and internationally. The aim is to support the development of regional industries by widely promoting excellent manufacturing companies. In this certification, the company's expertise, having specialized in special steel for over 110 years, the stable supply system for special steel plates such as wear-resistant steel plates, high-tensile steel plates, and weather-resistant steel plates, as well as its comprehensive capabilities including laser cutting, bending, and welding, were all evaluated positively. Being recognized as an Aichi Brand Company is also a testament to the company's technological capabilities and management foundation being publicly acknowledged, which contributes to an increase in social credibility. This is expected to further enhance the reliability of the company as one that new customers can engage with confidently. Kumagai Special Steel will continue to support manufacturing in the manufacturing, construction, and infrastructure sectors across the country through services ranging from the supply of special steel plate inventory to processing and parts manufacturing.