GRUBATEC AG Measurement & Control Technology

Non-contact Measurement Applications

Our Pyrometers for Demanding Industrial Processes

From induction, hardening, and forging to casting, rolling, plastics, and research: Our pyrometers offer flexibly configurable solutions for fast, precise, and noncontact temperature measurements.

Wide temperature rangeDepending on the model, from low temperatures up to 4,000 °C.
Fast response timesFor dynamic processes and short measurement windows.
Fiber Optic SolutionsFor high temperatures, confined installation spaces, and strong magnetic fields.
Flexible IntegrationAnalog, serial, and with optional fieldbuses.
Non-contact measurement Real-time process data
PYROMETER HOT PIECE 1,250 °C
−40 to 4,000 °CPortfolio Focus
High-SpeedDynamic Processes
Industrial InterfacesFlexible Integration
Up to 4,000 °CFor demanding high-temperature processes
High SpeedFor short cycles and moving workpieces
Light guideElectronics protected and physically separated
Vario opticsPractical orientation toward the measurement point
Integration-readyAnalog, serial, and optional fieldbuses
Overview of the melting points of selected metals and suitable pyrometers from the KTRD 1xxx, KTRD 4065, KTRD 4075, and KTRD 4085 series
Click on the image to open the full-size overview.
Overview of Applications

Where Our Pyrometers Can Be Used

The maps show typical and potential areas of application. Using the filters, you can narrow down the areas of application by process group.

Rapid heating

Induction Heating

Temperature control directly on the workpiece during short, dynamic heating cycles.

  • Gears, shafts, and bearing rings
  • Tubes, Bolts, and Rods
  • Shrinking, Soldering, and Annealing
KTRD 1065 / 1075 · KTRD-HS · Fiber Optic Cable
Ensuring Quality

Hardening & Heat Treatment

Reproducible temperature monitoring during hardening, tempering, and heat treatment.

  • Induction and Surface Hardening
  • Tools and Machine Parts
  • Detect brief temperature spikes
KTRD 1075 / 1085 · KTRD-HS
Hot Forming

Forging & Pressing

Noncontact inspection of red-hot workpieces before and during forming.

  • Die Forging and Pressing
  • Bolts, Rings, and Fittings
  • Rough and scaly surfaces
KTRD 1075 / 1085 · QKTRD
High temperature

Casting & Melting

Measurements on castings, molten metal, ladles, and outgoing molten metal jets.

  • Steel, Iron, and Nonferrous Metals
  • Casting ladles and molds
  • High-temperature processes up to 4,000 °C
KTRD 1085 / 1485 · QKTRD
Continuous Production

Rolls, Sheets, and Profiles

Temperature monitoring along production and forming lines in operation.

  • Steel strip, sheet metal, and coils
  • Tubes, Profiles, and Bar Stock
  • Poorly guided workpieces with scanner option
KTRD 1075 / 1085 · KTRD 4xxx · SC 1012
Joining & Connecting

Soldering & Welding

Temperature monitoring at solder joints, welds, and areas subjected to brief heating.

  • Soft Soldering and Hard Soldering
  • Laser and Resistance Welding
  • Preheating and Seam Inspection
KTRD 1065 / 1075 · KTRD 4xxx · High-Speed
Small, Moving Targets

Wire, Cable, and Rods

Fast measurement of small or moving workpieces using appropriate optics.

  • Wire Drawing and Annealing Lines
  • Cable and Coating Processes
  • Bars, Tubes, and Shapes
KTRD 1065 / 1075 · KTRD-HS · Scanner
Low to moderate temperatures

Plastics & Non-Metals

Surface temperature measurement for materials with suitable emissivity characteristics.

  • Extrusion and Thermoforming
  • Rubber, Composites, and Coatings
  • Paper, wood, and textiles after testing
KTRD 1105 · KTRD 1105-HS
Spectrally adjusted

Glass & Glass-Ceramics

Potential measurement solution for glass-ceramics, hot glass products, and furnace processes.

  • Glass-ceramic cooktops
  • Molding, Tempering, and Cooling
  • Technically inspect the glass type and measurement depth
KTRD 1550
Flexible Configuration

Research & Custom Machinery

Integration into test benches, test facilities, and customer-specific process solutions.

  • Material Testing and Process Development
  • Data Recording and Analysis
  • PID Control with AED Electronics
KTRD 1xxx · KTRD-HS · AED 1012
Orientation in Four Steps

From the Application to the Right Pyrometer

It's not just the temperature that matters. For a reliable measurement, several technical factors must align.

1

Define Material

Determine whether the surface is metal, plastic, glass, or coated.

2

Narrow down the temperature range

Set the minimum and maximum temperatures as well as the process margin.

3

Check the measurement conditions

Evaluate the measurement spot, distance, motion, smoke, dust, and the surrounding environment.

4

Configure Device

Select wavelength, optics, response time, interface, and accessories.

Temperature as a First Indicator

From low-temperature processes to molten metal

The scale shows the approximate range of the main device groups. The actual measurement ranges depend on the model and configuration.

−40 °C
1,000 °C
2,000 °C
3,000 °C
4,000 °C
Low TemperaturesHeat treatmentHigh temperatureExtreme processes
Universal / Non-metalsKTRD 1105

Plastics, nonmetals, and lower surface temperatures.

Metal, Induction, SolderingKTRD 1065 / 4065

Typical metalworking processes in the low- to medium-range.

Hardening, Forging, RollingKTRD 1075 / 4075

For red-hot workpieces and dynamic production processes.

Casting and High TemperaturesKTRD 1085 / 1485

For very high metal temperatures and demanding processes.

Which product family is right for you?

Our Pyrometers by Design and Measurement Application

The product philosophy is straightforward: universal machines, compact machines, two-color technology, high-speed machines, and fiber-optic solutions are combined to suit the specific production line.

Versatile and customizable

KTRD 1xxx

Stationary universal pyrometers with flexible optics and a wide range of technical customization options.

Industrial PlantsVario OpticsWide Measurement Ranges
  • Induction, Hardening, Casting, and Rolling
  • Available for different wavelengths
  • Can be combined with data acquisition and control systems
Small and powerful

KTRD 4xxx

Compact pyrometers for direct installation in machines and confined areas of plants.

CompactMachine IntegrationMetalworking processes
  • Induction, Brazing, Wire, and Profiles
  • Short distances to the measuring point
  • Suitable for applications with limited installation space
For poor visibility conditions

QKTRD Two-Color

Ratio pyrometers for applications involving smoke, dust, soot, or a partially obscured measurement field.

Smoke & DustSootMoving Parts
  • Forging, Foundry, and Steel Manufacturing Processes
  • More robust in the event of partial signal attenuation
  • Continue to check the technical suitability of the surface
Heat and challenging installation locations

Optical Fiber 14xx / 44xx

The measuring head and electronics are physically separated to better protect the electronics.

High ambient temperatureInduction fieldsConfined spaces
  • For hard-to-reach measurement points
  • Suitable for use in strong electromagnetic fields
  • Flexible Attachable Lenses and Mounting Options
Short measurement windows

KTRD-HS High-Speed

High-speed operations for moving workpieces, short cycles, and dynamic temperature changes.

High SpeedShort cyclesProcess control
  • Induction, Welding, and Rotating Parts
  • For rapid temperature spikes
  • Response time depends on the model and detector
Analysis and Control

AED & Scanner

Extensions for process visualization, data logging, PID control, and the detection of poorly positioned workpieces.

PID ControlData LoggingScanner
  • AED analysis electronics with user interface
  • SC 1012 as a scanner attachment
  • Integration into Machine and Process Control Systems
It Depends on the Measurement Situation

What challenges need to be taken into account?

These guidance charts show when a specific design or additional technical testing is advisable.

Smoke, Dust, and Embers

A two-color solution may be more robust in cases of partial attenuation. The specific measurement situation must be evaluated.

High ambient temperature

Fiber-optic solutions isolate sensitive electronics from hot or hard-to-reach measurement points.

Undulating Surfaces

Emissivity, oxidation, coating, surface roughness, and the condition of the material have a decisive influence on the measurement.

Important: The temperature range alone is not sufficient

For the final selection, wavelength, emissivity, surface, measurement spot, measurement distance, motion, environment, and desired response time must be evaluated together. The product families shown are therefore a professional preselection and do not constitute final device approval.

Which of our pyrometers is right for your process?

Please send us the material, temperature range, measurement distance, measurement spot size, surface condition, process speed, and desired interface. We will determine the appropriate series, wavelength, optics, and device configuration.

Check your application now
Applications for pyrometers - Typical areas of application

Applications for pyrometers

Typical areas of application in industry and research

What are pyrometers?

Pyrometers are non-contact temperature measuring devices that determine the temperature of an object by measuring the infrared radiation it emits. They enable precise temperature measurements in areas where conventional thermometers cannot be used.

Typical areas of application

Metallurgy

Monitoring of melting processes, heat treatment and casting processes in the metal industry.

300°C - 4000°C Contactless

Glass industry

Control of glass melting furnaces, cooling processes and forming temperatures.

1000°C - 1600°C High precision

Plastics processing

Temperature monitoring for extrusion, injection molding and thermoforming.

150°C - 400°C Fast

Semiconductor manufacturing

Precise temperature control in wafer processing and doping processes.

200°C - 1200°C Ultra-precise

Food industry

Monitoring of ovens, pasteurization and sterilization processes.

60°C - 300°C Hygienic

Ceramics industry

Control of firing processes in tunnel kilns and chamber kilns.

800°C - 1400°C Robust

Automotive industry

Temperature measurement during painting processes, welding and engine tests.

100°C - 1500°C Versatile

Pharmaceutical industry

Monitoring of drying processes and sterilization in pharmaceutical production.

50°C - 300°C GMP-compliant

Space travel

Temperature measurement for material tests and rocket motors.

-50°C - 2000°C Extreme range

Advantages of pyrometry

Non-contact measurement

No influence on the measured object, ideal for moving objects or objects that are difficult to access

High measuring speed

Fast response times down to the millisecond range

Long life

No wear due to contact, low maintenance

High temperatures

Measurement of temperatures up to over 3000°C possible

Temperature ranges at a glance

Low temperature
-50°C to 300°C
Mean temperature
300°C to 1000°C
High temperature
1000°C to 2000°C
Ultra-high temperature
2000°C to 4000°C

Most important metals and their melting points

Most important materials and their melting points

Overview of melting temperatures in degrees Celsius

Metal Chemical symbol Melting point (°C) Density (g/cm³)
Aluminum Al 660 2.7
Lead Pb 327 11.34
Iron Fe 1538 7.87
Glass SiO2 1710 2.65
Gold Au 1064 19.3
Ceramics Al2O3 2054 3.99
Copper Cu 1085 8.96
silver Ag 961 10.5
Steel Fe/C 1450 7.85
Titanium Ti 1668 4.51
Tungsten W 3422 19.3
Zinc Zn 420 7.13

Notes

  • The melting points can vary depending on the purity and alloy composition
  • Steel is an alloy of iron and carbon, therefore not a pure metal
  • Tungsten has the highest melting point of all pure metals
  • Aluminum melts at a relatively low temperature, which makes it easy to process

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