LUMA Application AREAS
Fine Wire for Industrial and Scientific Engineering: High-Precision Tungsten Wires
Properties and Applications of High-Precision Tungsten Wires
Tungsten, a metal characterized by its high density, significant weight, and exceptional thermal stability, is indispensable in high-precision engineering. Its unique properties make it a material of choice for high-precision engineering tasks. Below are some notable applications of high-precision Tungsten wires :
Borescopes and High-Temperature Instruments
Our high-precision Tungsten wires are extensively employed in borescopes and other inspection instruments designed to operate in extreme-temperature environments, such as engines, turbines, and pipelines. These wires exhibit excellent thermal and mechanical stability, ensuring reliable performance even under demanding conditions. In temperature sensors, tungsten’s high melting point and resistance to thermal expansion are critical for accurate measurements in high-heat surroundings.
Microscopy: Scanning Electron and Optical Microscopes
Tungsten wires, particularly those subjected to cleaning, polishing, or gold plating, are vital components in high-resolution imaging systems like scanning electron microscopes (SEMs) and optical microscopes. Ultra-fine tungsten wires with diameters ranging from 5 to 10 microns, or thicker variants measuring 150 to 185 microns, are widely used. Renowned manufacturers such as Zeiss (Germany) and Specac (UK) rely on high-precision Tungsten wires for precision-focused applications.
Notably, LUMA stands out as the sole European company capable of plating tungsten wires with diameters below 10 microns, maintaining a global leadership position in this specialized field.
Ulrik Palmqvist, Ph.D.
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Further applications in high tech Industrial and Research applications
Grid Polarizers for Terahertz Applications
Tungsten wires, non-plated or gold plated are integral to the fabrication of grid polarizers used in terahertz and microwave frequency applications. These devices consist of a metallic support ring with a parallel array of ultra-fine tungsten wires (5-10 microns in diameter) stretched across its aperture. The alignment of the conductive wires enables the polarization of electromagnetic radiation, with the degree of polarization determined by the wire spacing and the wavelength of the incident radiation.
Researchers, particularly in academic settings, utilize these grid polarizers to manipulate the polarization of terahertz radiation in experimental setups. The ability to etch or gold-plate tungsten wires to these fine dimensions enhances their effectiveness, meeting the stringent demands of cutting-edge research. Researchers in academic settings utilize tungsten wires for terahertz experiments to control and manipulate radiation with micron-level accuracy
Air Ionizers and Negative Ion Generators
High-precision tungsten wires are also a critical component in air ionizers and negative ion generators, devices that enhance air quality by electrically charging air molecules. The high-voltage discharge from these devices creates negative ions, which attract positively charged airborne particles such as dust, pollen, and other contaminants. These charged particles are subsequently filtered out, improving environmental conditions.
Applications range from hospitals—where maintaining a clean air environment is paramount—to manufacturing facilities that require control over static electricity and dust contamination. Tungsten’s durability and conductivity make it an ideal choice for ensuring the long-term efficiency of these devices.
LUMA Wire Tech and Coating - a reliable and innovative partner for Industry and Research
With unmatched expertise in tungsten wire coating and ultra-fine diameters, Luma is a trusted supplier for industrial and scientific applications worldwide.
Why Choose Luma’s High-Precision Tungsten Wires for Industrial and Scientific Applications
At Luma Wire Tech, we go beyond supplying fine wire. We provide reliability, innovation, and support for demanding industries and research environments. Our high-precision tungsten wires, gold-plated or cleanded stand out because they deliver:
- Micron-level accuracy – consistent diameters from 5 microns and upwards for precise results.
- Exceptional surface finish – electro-polished and gold-plated options ensure reliability in sensitive applications like microscopy and polarizers.
- Proven durability – withstands extreme temperatures, mechanical stress, and high-voltage environments without compromising performance.
- Unique expertise – the only European supplier capable of plating tungsten wires below 10 microns.
- Custom engineering – tailored alloys, coatings, and finishes designed to meet exact specifications in industrial and scientific projects.
From advanced microscopy and borescope instruments to terahertz research and environmental technologies, Luma’s fine wires are trusted worldwide by leading manufacturers and research institutions.
FAQ – High-Precision Tungsten Wires
To help you better understand the performance and benefits of our high-precision tungsten wires, we’ve gathered answers to some of the most common questions from engineers and researchers worldwide
What makes a tungsten wire “high-precision”?
High-precision tungsten wires are manufactured with micron-level tolerances, ultra-straightness, and minimal surface defects. This ensures consistent performance—especially in sensitive applications like detectors, sensors, and R&D instruments.
What diameter ranges do you offer?
We typically supply high-precision tungsten wires in diameters from about 4 microns up to 300 microns, depending on customer needs and application.
Can these wires be plated or remain clean?
Yes. We can deliver both cleaned (bare) tungsten wires and plated versions (e.g. gold, nickel) for enhanced conductivity, corrosion resistance, or bonding ability.
Where are high-precision tungsten wires used?
Common applications include particle detectors, sensor chambers, precision instrumentation, aerospace, and research equipment where mechanical stability and electrical integrity are critical.
How do you ensure quality and consistency?
Each wire batch undergoes strict quality control—measuring straightness, diameter, elongation, and surface finish. We also conduct microscopic inspections and traceability under ISO-certified procedures.
What are the advantages of tungsten vs other metals for high-precision wires?
Tungsten provides high melting point, minimal thermal expansion, excellent mechanical strength, and stable electrical behavior under stress—ideal for environments where stability and performance cannot be compromised.
What are the benefits of high-precision tungsten wires in industrial and scientific applications?
High-precision tungsten wires provide unmatched dimensional stability, high tensile strength, and resistance to extreme heat. These properties make them indispensable in industries such as aerospace, electronics, and advanced research.
Why are gold-plated high-precision tungsten wires preferred in sensitive instruments?
Gold-plating adds corrosion protection, improves conductivity, and enhances solderability. This ensures that high-precision tungsten wires deliver reliable performance in scanning electron microscopes (SEMs), sensors, and medical devices.
How does Luma Wire Tech ensure quality in high-precision tungsten wires?
All wires are produced in Sweden under strict ISO-certified processes. Luma Wire Tech maintains micron-level accuracy, consistent coating thickness, and rigorous testing to guarantee the highest standards of quality and reliability.
What dimensions are available for high-precision tungsten wires?
Luma supplies high-precision tungsten wires in diameters ranging from 5 to 300 microns, depending on customer requirements. Both cleaned and gold-plated options are available to match different applications.
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