In recent years, a well-known Chinese steel group has been committed to promoting the high-quality development of its traditional steel industry. The group has introduced Weidmuller electrical connection solutions to improve the level of electronic control automation, further optimize product quality and production efficiency, and continuously enhance its market competitiveness.
Project Challenge
The steelmaking converter is one of the main process equipment of the customer. In this steelmaking process, the electronic control system needs to meet the requirements of the converter smelting process for safety, stability, reliability, high efficiency, and precision control.
In the process of selecting solutions, the challenges faced by the customer are mainly:
1 Harsh working environment
The temperature inside the converter can reach more than 1500°C
The water vapor and cooling water generated around the converter bring high humidity
A large amount of waste slag is generated during the steelmaking process
2 Strong electromagnetic interference affects signal transmission
Electromagnetic radiation generated by the operation of the converter equipment itself
Frequent start and stop of motors of a large number of surrounding facilities generate electromagnetic interference
Electrostatic effect generated by metal dust during the steelmaking process
3 How to obtain a complete solution
The tedious work brought by the separate procurement and selection of each component
Overall procurement cost
Faced with the above challenges, the customer needs to find a complete set of electrical connection solutions from the site to the central control room.

Solution
According to customer requirements, Weidmuller provides a complete solution from heavy-duty connectors, isolation transmitters to terminals for the customer's steel converter equipment project.
1. Outside the cabinet - highly reliable heavy-duty connectors
The housing is made entirely of die-cast aluminum, with a high IP67 protection level, and is extremely dustproof, moisture-proof, and corrosion-resistant
It can work in a temperature range of -40°C to +125°C
The sturdy mechanical structure can withstand vibration, impact, and mechanical stress of various types of equipment.

2. Inside the cabinet - strictly EMC-certified isolation transmitter
The isolation transmitter has passed the strict EMC-related EN61326-1 standard, and the SIL safety level complies with IEC61508
Isolate and protect key signals to suppress electromagnetic interference
After measuring the physical quantities in the steelmaking process, it can resist the interference or influence of factors such as temperature changes, vibration, corrosion, or explosion, and complete the current to voltage signal conversion and transmission.

3. In the cabinet - firm and maintenance-free ZDU terminal case
The terminal spring clip is made of stainless steel in one step to ensure the clamping force, and the copper conductive sheet ensures conductivity, firm connection, long-term reliable contact, and maintenance-free in the later stage

4. One-stop professional service
Weidmuller provides fast and professional one-stop electrical connection solutions, including terminal blocks, isolation transmitters and heavy-duty connectors, etc., to fully realize the power and signal transmission of the converter.
Solution
As a traditional heavy industry with saturated production capacity, the steel industry is increasingly pursuing safety, stability and efficiency. With its strong electrical connection expertise and complete solutions, Weidmuller can continue to provide reliable assistance to the electrical connection projects of key equipment of customers in the steel industry and bring more extraordinary value.
Post time: Mar-28-2025