HMD-S8W Hot Metal Detector
Detect workpiece arrival.
Coordinate spraying and line operations.
Detect infrared radiation from hot metal to determine workpiece presence and position, then provide switching signals for automated control. Digital signal processing and automatic gain control (AGC) adjust detection gain to the target radiation level, reducing repeated manual sensitivity adjustments.

Turn workpiece position into control signals
Detect the hot workpiece
Detect workpiece presence and position.
Output switching signals
Connect to the automation system using the selected output type.
Coordinate spraying and line operations
Provide the trigger for switching sequences and equipment coordination.
More stable detection signals.
Simpler commissioning and maintenance.
Coordinate actions with workpiece position
Use detection signals for spray switching and equipment coordination, helping the control system decide when to act.
Adapt to different target radiation levels
Eight automatically switched gain stages adjust to the hot target’s infrared radiation, reducing manual sensitivity tuning.
Improve detection in noisy environments
Digital signal processing improves interference resistance and provides stable detection inputs for metallurgical sites.
Check status and self-test at the site
A color display shows status clearly. Automatic testing supports inspection, while multiple output types suit different control systems.
Key Performance Data
Detected-object temperature range
Hot metal presence detectionAutomatic AGC gain switching
Adjusts to target radiation levelColor LCD
View status and settings locally250–1200°C is the temperature range of the detected object. This detector provides presence or position signals; temperature measurement is performed by an infrared pyrometer.
Coordinate spray timing with the on/off valve.
The detector identifies workpiece arrival, the control system issues a switching command, and the servo on/off valve starts spraying.
Hot metal detector questions
Does the HMD-S8W measure steel temperature?
The HMD-S8W detects hot workpiece presence and position and provides switching signals. Its 250–1200°C specification describes the detected-object temperature range. For non-contact temperature readings used in cooling feedback, see the PLK infrared pyrometer.
What information is needed to select a hot metal detector?
Provide the steel grades, workpiece temperature range, installation distance, detection location and PLC input requirements. These conditions help define the detection arrangement and the output connection to the line control system.
Match workpiece detection to your production line.
Share steel grades, temperature range, installation distance, detection location and PLC input requirements.
