EMMA-ID · METALLURGICAL INTELLIGENCE

Make High-temperature Industry Visible & Identifiable

EMMA-ID recognition expert delivering high-temperature container identification and full-process intelligent solutions for the steel and non-ferrous industries.

EMMA-ID · HIGH-TEMP TAG ID

350℃ Heat-proof SAW Tags · Zero Maintenance

Born from SJTU surface acoustic wave (SAW) research, with 99.9%+ recognition accuracy and years of stable operation on hot steel ladles.

EMMA-ID · SMART STEELMAKING

Full-process Steelmaking Perception · Precise Dispatch

Crane positioning accurate to 8cm with digital control from hot metal to finished steel across 43 steel plants.

16 Years of EMMA R&D
43家+ Steel Plants
50+ Metallurgical Projects
350 Working Temperature
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About Mianrui

ABOUT MIANRUI

Suzhou Mianrui Electronic Technology Co., Ltd. specializes in the R&D, application and production of Electromagnetic Micro-Acoustic (EMMA) identification technology and metallurgical intelligent systems. We are one of the few enterprises with the complete R&D chain of device simulation design, process manufacturing, reader manufacturing and antenna design.

Our technology originates from the Surface Acoustic Wave (SAW) research group of Shanghai Jiao Tong University. Core team members come from SJTU, KIT Germany, the University of Freiburg and Chiba University Japan, with over 20 years of research and more than 10 national and provincial projects. The high-temperature SAW chip has been developed over 16 years and applied in production for 8 years, deployed in 43 steel plants.

With fully independent core technologies and intellectual property, Mianrui holds 15 granted invention patents and has won awards such as the Jinji Lake Dual-Hundred Talent Program and Technology Leading Talent. We serve 50+ metallurgical enterprises including Baowu, Yonggang, Zhanjiang Steel, Longmen Steel and Xingcheng Special Steel.

SJTU SAW TechnologyFull-Chain R&D15+ Patents3× NSFC
Learn more about us
About Mianrui
Factory Introduction Metallurgical sensing · Smart factory
GANGLING AI

The Multi-Agent OS for the Steel Industry

A "second brain" for steel plants - perceptible, simulatable, collaborative, evolvable.

Explore Gangling →
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Partnering with Global Leaders

PARTNERS
宝武集团
永钢集团
湛江钢铁
龙门钢铁
八一钢铁
金鼎钢铁
沙钢集团
山东永锋
云南铜业
江铜集团

Trusted by 50+ metallurgical enterprises since 2018

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Technology Milestones

MILESTONES

Two decades of SAW research, from laboratory to 43 steel plants

1996年

SJTU initiates Surface Acoustic Wave (SAW) research

2010年

Team supported by 3 NSFC grants for SAW theory, piezoelectric materials and EDA simulation

2018年

First SAW RFID trial in Baosteel "one-click steelmaking"; 39 ladles installed by 2019

2021年

EMMA-ID officially released and promoted, covering 43 steel plants

2025年

Expanding into non-ferrous copper and rail transit, deployed at Yunnan Copper and Jiangxi Copper

Talk to Our Metallurgical Experts

Address:No.1, 1890 Zhonghuayuan West Road, Yushan Town, Kunshan, Suzhou, Jiangsu, China
Contact:Mr. Peng / Mr. Zhang Tel:+86 137 2023 5911 / +86 158 3574 4884
Email:zhb@mianrui.freeqiye.com