
About Cherng Ji
Your Total Solution Provider for Roll Forming
Founded in 1982 in Ren-Wu, Kaohsiung, CJI (Cherng ji Industrial) has spent more than 40 years focused on roll forming. We design and build high-quality, high-output cold roll forming machines, backed by our own in-house R&D and manufacturing capabilities, allowing us to deliver solutions tailored to each customer's specific needs. We hold ISO 9001 and ISO 14064-1 certifications, and we continue to secure patents both in Taiwan and abroad, keeping our machines constantly improving and in line with carbon emission standards.
On the technology front, our internationally recognized "Transformer-Auto Adjustable C/Z Purlin cold roll forming machine " has helped customers around the world optimize their production processes, increase output, and strengthen their competitive edge. Our Ren-Wu plant spans 4,300 square meters with an annual capacity of 150 to 200 machines, and to date we've sold more than 6,000 machines to over a thousand customers across five continents, serving a wide range of industries including construction, roofing and cladding, solar, modular housing, guardrails, warehousing, cleanrooms, livestock facilities, cold storage, greenhouses, and interior fit-out.
To continually improve efficiency and quality control across our operations, we run on the Toyota Production System (TPS), constantly refining our production flow and eliminating waste. This reflects a core belief we hold ourselves to: never promise a delivery date we can't meet, and never claim a capability we can't deliver. Since 2022, we've been driving forward with digital transformation and ERP system integration to strengthen real-time management; and in 2026, we took it a step further by adopting an AI-driven operations management system, once again raising management and production efficiency across the entire plant — so every customer can track their project with confidence and plan ahead for what's next.
At CJI, every step we take is to help our customers stay 『One Step Ahead.』
Continuous Innovation and Comprehensive Technical Expertise at Cherng Ji Industrial
Committed to excellence, we constantly innovate by developing new cold roll forming machine models and addressing operational challenges. Our extensive hands-on experience and in-depth technical knowledge empower us to perform complete in-house design and manufacturing, delivering reliable and cutting-edge forming solutions tailored to diverse industry needs.
In 2026, Cherng Ji Industrial marked a significant milestone in its international expansion with the establishment of YC Machinery — a joint venture formed in partnership with Yodoko Shoji (ヨドコウ商事), a specialized trading company under Yodoko, one of Japan's most respected steel groups. Operating in the Japanese market, YC Machinery is dedicated to the sales and promotion of roll forming machines and related equipment manufactured by Cherng Ji Industrial. Earning the recognition of Japanese industry partners — renowned for their exacting standards — stands as a testament to the quality and reliability that define our products and services.That same year, CJI was further honored with the Dun & Bradstreet Taiwan SME Elite Award, a recognition that underscores the company's excellence in professional management and product credibility — adding further validation to its growing international presence.
Looking ahead, Cherng Ji Industrial remains committed to raising the bar across every dimension of our business. From precision craftsmanship in manufacturing to comprehensive after-sales support, we are driven by a relentless focus on delivering an exceptional customer experience. Guided by our founding spirit of One Step Ahead, we will continue to evolve, innovate, and nticipate and address the ever-evolving expectations of customers worldwide.

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