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.

16yrs Years of EMMA R&D
43+ Steel Plants
50+ Metallurgical Projects
350℃ Working Temperature
01 · 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 →
06 · PARTNERS

Partnering with Global Leaders

Baowu Group
Yonggang Group
Zhanjiang Steel
Longmen Steel
Bayi Steel
Jinding Steel
Shagang Group
Shandong Yongfeng
Yunnan Copper
Jiangxi Copper Group

Trusted by 50+ metallurgical enterprises since 2018

07 · MILESTONES

Technology Milestones

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

发展历程DEVELOPMENT HISTORY

Siemens successfully develops SAW RFID technology for high-speed railway identification

1996

Shanghai Jiao Tong University begins SAW technology research

2000

Siemens' micro-acoustic team is sold and later dissolved; Austria's CTR company runs the first steel ladle ID trial with the technology

2008

Our team receives 3 consecutive NSFC grants, researching micro-acoustic theory, piezoelectric materials and EDA simulation software

2010

A Baowu steel plant runs the first SAW RFID trial in its "one-click steelmaking" project

2016

First-generation products installed on 39 ladles in the No.1 steelmaking plant of a Baowu plant

2018

Second-generation products developed and installed on 110 hot metal ladles at Jiangsu Yonggang

2019.10

Third-generation products developed; tag housing uses aviation-grade materials to withstand molten steel splash

2019.12

System runs stably for 2 years; fully deployed across No.1/2/3 steelmaking and EAF plants at Jiangsu Yonggang Group

2020.11

Ladle ID at Baosteel Zhanjiang steelmaking plant adopts this technology

2021.7

After 2 years of stable operation, reliability recognized by the owner; EMMA-ID technology officially promoted in the steel industry

2021.10

Full EMMA product line successfully deployed at 45+ steel plants and nearly 10 non-ferrous companies nationwide, earning unanimous industry acclaim

2025.12

After 15 years of high-temperature micro-acoustic chip R&D, the team keeps driving the technology into new scenarios and fields, incubating the steel-industry industrial agent "Gangling", striding toward higher, farther and stronger goals

至今
08 · NEWS

News

Witness breakthroughs, follow industry trends

No news available
Address
Room 302, Building 1, No.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
zh@szmianrui.com

Talk to Our Metallurgical Experts

+86 137 2023 5911 / +86 158 3574 4884