In aluminium processing, temperature affects almost every stage of production.
From molten metal and extrusion through to quenching and finishing, accurate and reliable temperature data helps operators maintain product quality, reduce waste and keep processes running efficiently.
The SPOT+ AL and SPOT Actuator have been developed specifically to support this level of control, providing aluminium processors with dependable measurements across a wide range of demanding applications.
Built Specifically for Aluminium
In aluminium processing, some of the biggest gains often come from improving temperature control. When operators have access to accurate, reliable measurements, they can make better-informed process decisions and maintain greater consistency across production.
The challenge is that aluminium is one of the most difficult materials to measure accurately. Its low and variable emissivity can make conventional infrared pyrometers unreliable, resulting in inconsistent readings and uncertainty within the process. This is where SPOT+ AL and SPOT Actuator provide a clear advantage.
Unlike general-purpose pyrometers, the SPOT+ AL smart application pyrometer has been developed specifically for aluminium processing. Dedicated operating modes for extrusion, quenching, strip, forming, forging and liquid aluminium applications allow a single sensor platform to provide accurate measurements across multiple stages of production. These modes can also support additional aluminium processing applications.
Precision That Supports Better Process Decisions
With a response time of just 15 ms, providing more than 60 values per second, SPOT+ AL gives operators access to fast, dependable process data rather than relying on estimates or delayed readings. In extrusion and quench applications, the system offers a specified measurement accuracy of ±2 °C or 0.25 %K, with noise below 0.5 °C, and repeatability of ±1 °C at temperatures of 300 °C and above.
SPOT+ AL also supports liquid aluminium applications through its dedicated Liquid Aluminium Mode, enabling continuous non-contact temperature measurement in processes such as aluminium tapping. This helps operators maintain optimal pouring temperatures, reducing the risks associated with overheating or underheating while supporting consistent casting quality.
Reliable temperature data gives operators a clearer view of what is happening within the process. When conditions start to drift, they can react quickly and make informed adjustments before quality is affected. That level of visibility can make a significant difference in maintaining stable production.
The full range includes the SPOT+ AL, covering 200 to 900 °C, and the SPOT+ AL LT, covering 130 to 700 °C, together with the SPOT Actuator.
Intelligent Product and Hot-spot Tracking
Another challenge in aluminium temperature measurement is ensuring the pyrometer is always directed at the correct target. At extrusion presses, profile positions can change following die swaps, during production, or when thinner profiles do not remain in a consistent position. This can make manual alignment time-consuming and inconsistent.
SPOT Actuator addresses this challenge by automatically scanning up to 900 measurement points across a configurable 90° field of movement, or ±45°, to identify and align the pyrometer with the optimum measurement location. It can also track moving or wandering profiles automatically, as well as identify the hottest spot on wider profiles, which is particularly useful in quenching applications.
In practice, this eliminates the need for manual instrument adjustment and gives operators greater confidence that temperatures are being continuously measured at the correct point in the process.
When operators can trust both the measurement and the measurement location, process control becomes easier, helping to improve both process stability and product quality.
Improving Product Quality Through Repeatability
Repeatability is a foundation of accurate temperature measurement and has a direct impact on product quality. In extrusion and quenching applications, maintaining stable process temperatures helps support consistent metallurgical properties, mechanical strength and dimensional performance.
In real production environments, this level of repeatability can make a substantial difference. Improved measurement of the billet taper, at the press exit and through the quench process helps minimise temperature variation between extrusions and provides greater confidence in finished product quality. Additional SPOT+ M160 pyrometers can also be used to measure die temperatures before the die enters the press.
For manufacturers supplying sectors such as automotive, aerospace, construction and marine, maintaining consistent quality standards and close process documentation is essential. Stable temperature measurement supports that consistency throughout production.
Delivering Real Cost Savings
The benefits extend beyond product quality.
When measuring liquid aluminium, overheating wastes energy and can adversely affect alloy properties. Underheating can lead to poor filling during mould casting, defects and costly rework.
By helping operators maintain tighter control of tapping, extrusion and quench temperatures, the SPOT+ AL and SPOT Actuator support:
• Lower energy consumption
• Reduced scrap
• Less rework
• Improved production efficiency and product quality.
Additionally, in extrusion applications, improved measurement accuracy and automated alignment also reduce operator intervention and help maintain more consistent throughput.
Together, these improvements help reduce operating costs while supporting more efficient production.
Key Benefits
• On-board intelligent pyrometer modes enable precise and reliable temperature measurement across a wide range of aluminium production and processing applications
• Reduced energy consumption through tighter temperature control
• Lower scrap rates and fewer defects
• Less rework and improved casting quality
• Reduced manual alignment and operator intervention
• Fully remote-controlled operation and digital integration into the process
• Improved process efficiency and repeatability
Designed for Modern Aluminium Plants
A key advantage of the SPOT+ AL and SPOT Actuator is how easy they are to set up, access and integrate into aluminium production environments. Advanced operating modes support confident, accurate temperature control, while the system’s digital capabilities make measurement data easier to use across the plant.
Built-in web servers, integrated video cameras, Ethernet IP communications, Modbus TCP and SPOTPro software make it straightforward to monitor temperatures remotely, review trends and integrate measurements into existing PLC or DCS systems. The system can also support higher-level process data acquisition platforms, such as iba, using the ibaPDA interface for LAND SPOT+ pyrometers.
This gives operators, maintenance teams and process engineers the information they need to review performance, identify trends, improve traceability and make better-informed decisions. As plants continue to improve visibility across their operations, easy access to reliable temperature data becomes just as important as the measurement itself.
Conclusion
In aluminium production, accurate temperature measurement is about much more than simply knowing the process temperature. It plays an important role in maintaining quality, reducing unnecessary energy use and giving operators the information they need to optimise production.
The combination of SPOT+ AL and SPOT Actuator is designed to support these requirements. With aluminium-specific measurement algorithms, automatic target tracking, rapid response times and straightforward integration into plant control systems, it provides a practical solution for extrusion, quenching, rolling, liquid metal applications and more.
What makes this combination stand out is its ability to address real measurement challenges faced by aluminium producers every day, while remaining easy and intuitive to set up. When temperature data is accurate and measurements are consistently taken at the right location, operators can make better decisions, improve process consistency and avoid unnecessary costs.
The result is greater process stability, more consistent product quality and improved operational efficiency across the plant. For aluminium manufacturers looking to strengthen process control and improve efficiency, SPOT+ AL and SPOT Actuator offer a practical way to achieve more reliable temperature measurement throughout the production process.
Learn more about LAND's solutions for aluminium applications.