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19.03.2025  |  122x
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Precise Asphalt Mixture Thanks to Accurate Dosing

Solutions for Building and Cement Industry by UWT. Reliable Sensor Technology for Consistent Material Supply in Level and Point Level Measurement
The quality of asphalt largely depends on the precise dosing of its components. Accurate level and point level measurement is particularly crucial during the weighing process to ensure a consistent mixture. This is where robust sensors come into play, reliably operating even under extreme conditions.

During the weighing and mixing process, sensors are exposed to high temperatures, dust, abrasive materials, and chemical influences. Additionally, confined installation spaces and fluctuating material properties present common challenges. A durable, low-maintenance technology is therefore essential to minimise downtime and ensure a stable process.

Precise Measurement and Dosing in the Mixing Process

While the capacitive RFnivo® sensor provides a robust and adaptable solution for demanding point level measurement in asphalt production, the NivoRadar® – NR 8 ensures continuous and reliable level measurement in viscous bitumen. Even under extreme conditions such as high temperatures, build-up, and condensation, it delivers precise measurement results.

Key Benefits at a Glance

  • Compact & Precise: Ideal for confined installation spaces, unaffected by material flow.
  • Durable & Resistant: Withstands dust, heat, abrasive materials, and chemical influences.
  • Minimal Maintenance Effort: Automatic calibration with RFnivo® ensures easy installation and long-term stability.
  • NivoRadar® enables quick and straightforward commissioning via the UWT LevelApp, the integrated display, or PACTware.

Technical Highlights:

  • Active Shield Technology (RFnivo®): Prevents build-up and deposits on the sensor.
  • PTFE-Encapsulated Antenna (NivoRadar®): Chemically resistant and highly durable.
  • High Load Capacity:
    RFnivo®: Temperature-resistant up to +500 °C / 932 °F, withstands pressure up to 35 bar / 507 psi.
    NivoRadar®: Variants available for up to 450 °C / 842°F and pressures up to 160 bar / 2,320 psi.
  • Flexible Designs:
    RFnivo®: Available in rod and rope versions, with remote housing for versatile applications.
    NivoRadar®: High-temperature versions, robust flange connections, and a clip-on display.
  • Certified Safety: ATEX approvals for dust and gas explosion-hazardous areas.

Industry Expertise for Demanding Applications

With decades of experience, UWT develops tailored measurement and monitoring solutions – even for complex processes such as those in the asphalt sector.
Download our industry brochure now for detailed solutions – learn more today.

Company information

UWT GmbH
UWT GmbH
The UWT has become one of the leading suppliers of measurement technology on the world market today for the level detection in silos and tanks for material manufacturing processes. When UWT started, almost 40 years ago, with the development of ingenious products. UWT supply level limit and content measurement sensors for bulk solids and liquids. A company reaches such a position only if the following key elements interact: Sound management, good understanding of the needs of the markets, innovative product solutions, skillful investment and above all, committed and dedicated employees. Different measurement techniques are used within a variety of industries depending on the medium and application in question.UWT products represent quality, flexibility and reliability in over 90 countries across the world. Having successfully solved over 1 mio. applications within the bulk solids sector, UWT has expanded still further by introducing a new and innovative product range for the liquids market which is delivering reliable solutions for applications in this area. The company is certified ISO 9001:2015 and constantly expands its portfolio of product certifications (ATEX, EHEDG, FM, CSA, INMETRO, etc.) particularly with regard to the international markets. The development, production and sales departments are located at our headquarters in Germany, with a further production site in Malta. UWT has also established successful sales offices in the USA, UK, China, India, Brazil, Spain and Mexico. With this global orientation, it is possible to serve and support customers with complete competence and flexibility. From development through production to final assembly and comprehensive technical advice, UWT can offer a complete service from a single source. The strongly held belief by the CEO`s Uwe Niekrawietz, Markus Schalk and Andreas Haug is for the welfare of over 200 employees world-wide: „Healthy and happy employees can make the unbelievable happen“. Our portfolio includes sensors for liquids: * Capanivo® 7000/8000 - capacitive sensors * RFnivo® 8000 - capacitive sensors * NivoCapa® 8000 - capacitive sensors * NivoGuide® 8000 - TDR guided radar * NivoRadar® 7000 - non contact radar sensor Sensors for bulk solids: * Rotonivo® - rotary paddle * Vibranivo® - vibrating fork * Mononivo® vibrating rod * Capanivo® 4000 - capacitive sensors * RFnivo® 3000 - capacitive sensors * NivoBob® 3000/4000 - electromechanical lot system * NivoRadar® 3000/4000 - contact free radar sensor * NivoGuide® 3000 - guided radar sensor (TDR) NivoTec® - visualisation systems NivoLED® - signal lamp Maximum Safety for Hazardous Areas
Last update: 20.03.2025

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