In industries such as cement, power generation, mining, quartz sand processing, rod mill sand making, and aerated concrete production, high-quality grinding steel bars are critical wear-resistant components that ensure production efficiency and product quality. Leveraging profound technical expertise, Hebei Yuantuo Electromechanical Equipment Manufacturing Co., Ltd. has successfully developed and launched a high-performance Grinding Steel Bar Quenching-Tempering Production Line, providing customers with a one-stop heat treatment solution from round steel to premium grinding bars. This innovation propels wear-resistant material manufacturing into an intelligent, high-efficiency era.

Core Technology: Perfect Fusion of Induction Heating and Precision Quenching
The production line’s innovation lies in its integrated process design: combining online medium-frequency electromagnetic induction heating technology with online water-spray quenching cooling technology. This synergy ensures rapid and uniform through-heating of round steel to target temperatures, followed by precisely controlled quenching. Subsequent tempering delivers ideal metallurgical structures and mechanical properties, transforming ordinary round steel into high-performance grinding bars.

High Automation, Stable and Reliable Operation
The fully integrated system—comprising automatic control, precision mechanical transmission, high-accuracy infrared thermometry, and efficient cooling circulation systems—forms a highly automated production chain. Key features include:

1. Intelligent Temperature Control: An embedded computer monitoring system enables fully automatic constant-temperature control. Operators simply set target temperatures via a touchscreen, eliminating manual intervention and ensuring consistent quality.
2. Flexible Adaptability: Designed for Ø30–180mm round steel, the line uses six rapidly interchangeable furnace bodies (GTR-30 to GTR-180). Inductor replacement via integrated hoisting, quick positioning, and rapid water-electricity connections allows swift adaptation to diverse specifications.
3. Independent Conveyor Control: Three independently controlled roller groups (feeding, induction heating, discharging) prevent temperature fluctuations caused by workpiece gaps, enabling continuous production. No guide rods required, significantly saving time/energy and boosting shift output.
4. Parameterized Process Management: Key parameters (quenching/tempering temperatures, roller speed, power) are preset and stored. Selecting a workpiece code on the touchscreen instantly loads all settings.
5. Premium Components:
   • High-Precision Thermometry: Infrared ratio thermometers enhance temperature accuracy and anti-interference capability.
   • Reliable Control Core: Siemens S7-series PLCs ensure global top-tier industrial stability.
   • Durable Lining Design: Stainless steel inductor linings prevent fractures caused by bent workpieces, avoiding short circuits and extending service life.

Standardized Production, Streamlined Workflow
Compliance with national standards (ZB46001-87, JB4086-85, GB1006.3-88, GB5959.3-88, GB/T5226-1996) guarantees safety and quality. The efficient workflow:

1. Round steel is hoisted to storage racks and aligned on inclined plates.
2. Steel enters the feed roller and advances into the induction furnace at set intervals.
3. Heated steel moves to the quenching station for spray cooling.
4. Quenched bars are conveyed to the tempering station.
5. Tempered grinding bars proceed to bundling and hoisting.

Broad Applications, Significant Value
Yuantuo’s grinding bars—renowned for wear resistance and stability—are widely used in cement mill grinding, power plant desulfurization slurry preparation, mineral processing, quartz sand grinding, rod mill sand making, and aerated concrete raw material processing. They empower customers to enhance productivity while reducing maintenance costs.

Hebei Yuantuo Electromechanical remains committed to innovating heat treatment technologies and upgrading equipment, delivering smarter, more efficient industrial solutions.