| Measuring Range | Ra: 0.050 to10μm /1.000 to 400.0μ inch Rz:0.020 to100μm / 0.780 to 4000μ inch |
| Accuracy | ≤±10% |
| Resolution | 0.001μm (reading <10μm) 0.01μm (10μm ≤ reading<100μm) 0.1μm (reading ≥ 100μm) |
| Fluctuation of display value | ≤ 6% |
| Radius | 10μm |
| Material | Diamond |
| Measuring Force | 16mN (1.6gf) |
| Probe Angle | 90° |
| Vertical Radius of Guiding Angle | 48 mm |
| Maximum Driving Stroke | 17.5mm / 0.75inch |
| Cutoff Length | 0.25mm, 0.8mm, 2.5mm |
| Measuring Speed | Sampling length= 0.25mm When Vt = 0.135mm /s Sampling length = 0.8mm When Vt = 0.5mm /s |
| Returning Speed | Vt =1mm /s |
| Evaluation Length | 1 to 5 L |
| Metric / Imperial | Conversion |
| Built in Li-ion battery | Rechargeable |
| Operating Temperature | 0 to 50 °C |
| Humidity | < 85%RH |
| Dimension | 140×52×48mm (5.5×2.2×1.9inch) |
| Weight | 420 g |
Multiple Cutoff Length
High Resolution Mode
Built in Li-ion Battery
Inductive Measurement Technology
Automatic Power Off
Surface Roughness Tester LSRT-A12 evaluates the texture of a surface by measuring its microscopic peaks and valleys. It is extensively utilized in energy sectors, aerospace, defence, electronics, metal, and machinery for construction, the hunting industry, and agriculture.
Download catalog for
Surface Roughness Tester LSRT-A12 Catalog
Available Range :
Surface Roughness Tester LSRT-A11 : Ra: 0.005 to 16μm / 1.000 to 629.9μ inchLabtron offers a wide range of reliable and precise Roughness Testers catering to needs of various industries. These testers utilize advanced stylus or non-contact technologies to measure critical surface parameters. They offer results rapidly and accurately ensuring strict quality standards. Their design makes them suitable for various settings as some of them are portable and some also feature external measuring units. Our testers are used in industries such as automotive, aerospace, manufacturing, and medical devices in achieving optimal surface quality and performance.



Labtron’s Surface Roughness Meter LSRT-A12 has non-contact optical methods, such as optical profilometry and confocal microscopy, offer several advantages over traditional contact-based surface roughness measurement techniques. These methods utilize light interference, diffraction, or scatter to analyze the surface without physically touching it, thereby eliminating the risk of stylus-induced damage or contamination. They are particularly beneficial for measuring delicate or soft materials that might deform under contact pressure. Additionally, optical methods can provide high-resolution 3D surface maps, offering a comprehensive view of the surface texture. This is especially useful in applications requiring detailed surface analysis, such as semiconductor manufacturing or biomedical device production. Furthermore, non-contact methods can be faster and more versatile, allowing for rapid measurements of complex geometries. However, they may be more sensitive to environmental factors like ambient light and vibrations, which can affect measurement accuracy.
Labtron’s Surface Roughness Meter LSRT-A12 involves the integration of artificial intelligence (AI) into surface roughness testing has revolutionized the way surface textures are analyzed. AI algorithms can process large datasets rapidly, identifying patterns and anomalies that might be overlooked by traditional methods. For instance, machine learning models can classify surface textures based on training data, enabling automated quality control processes. This reduces human error and increases efficiency in manufacturing environments. Moreover, AI can assist in predictive maintenance by analyzing trends in surface roughness data to forecast potential equipment failures. Incorporating AI into surface roughness testers allows for real-time data analysis and decision-making, enhancing overall production quality and reducing downtime. As AI technology continues to evolve, its applications in surface metrology are expected to expand, offering even more sophisticated analysis capabilities.
Regular maintenance and calibration are essential to ensure the accuracy and longevity of surface roughness testers. Maintenance procedures include cleaning the stylus tip and guide rails with a soft brush or lint-free cloth after each use to remove debris that could affect measurements. Inspecting the stylus for wear or damage is crucial, as a damaged stylus can lead to inaccurate readings. Calibration should be performed using certified reference standards traceable to national or international measurement institutes. The frequency of calibration depends on factors such as usage intensity and environmental conditions; however, it's generally recommended to calibrate the instrument at least annually. In high-precision applications or environments with harsh conditions, more frequent calibration may be necessary. Maintaining detailed records of all maintenance and calibration activities helps in tracking the instrument's performance and ensuring compliance with quality standards.
Yes, modern surface roughness tester LSRT-A12 are designed to measure roughness on curved or irregular surfaces. These testers are equipped with specialized probes or stylus arms that can conform to the contours of the surface, allowing for accurate measurements on complex geometries. This capability is particularly useful in industries such as aerospace, automotive, and biomedical device manufacturing, where components often have intricate shapes. Some advanced models offer features like adjustable probe angles and flexible stylus tips to accommodate various surface profiles. Additionally, certain testers provide software that can analyze data from non-flat surfaces, compensating for geometric distortions. However, it's important to note that the accuracy of measurements on curved surfaces may be influenced by factors such as probe alignment and surface curvature, necessitating careful setup and calibration.
Labtron Surface roughness testers LSRT-A12 primarily measure parameters such as Ra (Arithmetic Average Roughness), Rz (Average Maximum Height of the Profile), and Rt (Total Height of the Profile). These parameters quantify the micro-irregularities on a surface, which are crucial for determining the functionality and quality of machined parts. Advanced testers may also assess parameters like Rsk (Skewness) and Rku (Kurtosis), which provide insights into the symmetry and sharpness of the surface profile. Understanding these parameters helps in evaluating the wear resistance, lubrication properties, and aesthetic quality of materials. For instance, a lower Ra value indicates a smoother surface, which is often desired in applications requiring minimal friction. Conversely, higher Rz values might be acceptable in applications where a certain level of surface texture is beneficial. Therefore, selecting the appropriate parameters is essential based on the specific requirements of the application
Post your question?
Our experts are here to help!
Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608