We design and manufacture proven precision railway calipers for train and tram wheels. Our expertise supports the rail industry with reliable tools for accurate measurements. Therefore, contact us today and receive complete technical information also product specifications for your needs.
We manufacture calipers and advanced railway laser tools for smart predictive inspections. Our train equipment includes profilometers and analog and digital calipers for rail industry. Designed with precision and durability, these solutions reduce downtime and ensure safety. Request technical documentation today and boost reliability across your railway maintenance process.

The BOWARROW caliper calculates the diameter of the wheel.
A digital comparator performs a precise calculation of diameter.

WHEELY Calipers are used to measure the parameters of train and tram wheels:
- Flange thickness (G)
- Flange Height (H)
- qR Factor (flange wear)

LASERTOUCH LT is used to read railroad wheels profile and diameter in one single operation.

The GAUGECAL gauge is used to measure the distance between the inner faces of a wheelset.
For our predictive maintenance approach, we’ve developed three advanced laser tools that measure and store data locally and in the cloud. For wheel diameter, wheel parameters, and back-to back distance, we have digital and laser equipment for predictive maintenance.
GUDAR TOOLS develops advanced profilometers and precision calipers specifically designed for the railway industry. These smart tools provide crucial data for predictive maintenance and accurate analysis of wheel parameters. By identifying wear early, operators extend wheel life, ensure alignment, and improve safety on rail and tram networks through smarter inspections.
A caliper, on the other hand, measures specific dimensions like wheel diameter or flange height, which are essential for routine checks. At GUDAR TOOLS, we provide both: high-performance portable train profilometers and railway calipers for daily use, ensuring full coverage in railway diagnostics and measurement protocols.
At GUDAR TOOLS, we also offer profilometer calibration to maintain consistent accuracy. Our railway customers use this tool to plan effective maintenance strategies. The data is stored in a database, allowing customers to perform preventive and statistical analyses of their fleet.
Yes, GUDAR TOOLS offers personalized technical support through a team of railway technical advisors and industry consultants. We assist with the selection of the correct train equipment, profilometer calibration, and operational training for all measurement tools in our portfolio, tailored to each client’s infrastructure.
We help you integrate our solutions effectively. Our experts provide technical documentation, software updates, and usage guides. You can contact our railway technical team at any stage for consultation, certification guidance, or implementation across your maintenance protocols.
Absolutely. All our railway calipers, profilometers, and other railway tools follow strict European and international railway regulations. We collaborate with operators from multiple countries, ensuring compatibility with modern train equipment requirements and compliance with safety standards in various regions.
GUDAR TOOLS also adapts our designs to work with diverse axle types and railway wheels. Our manufacturing process focuses on quality and measurement precision, making our products suitable for high-speed lines, metros, and tram networks. Clients trust our tools for certified maintenance solutions and accurate inspections.
You can easily contact GUDAR TOOLS via our website form, by email, or phone. We organize personalized demos of our railway equipment, showcasing tools like the portable profilometer, wheel parameters calipers and back-to-back gauges. These demos help clients understand product features and inspection capabilities in real time.
Whether you need help choosing a wheel caliper, require a calibration service, or want to train your team, we provide complete assistance. We support operators across Europe in both Spanish and English. GUDAR TOOLS is a reliable railway tools specialist, helping you innovate in predictive maintenance and inspection.
GUDAR TOOLS ensures maximum accuracy in railway parameters measurement through advanced engineering, certified calibration, and rigorous quality control. Our profilometers and calipers are designed to measure wheel parameters and railway wheel diameters with micrometric precision.
By combining innovative technology and durable materials, we guarantee consistent results, helping operators optimize maintenance planning, reduce downtime, and extend the lifespan of rail components.
Contact us today to learn more about our advanced profilometer and railway tools. Our technical team offers personalized advice to help you implement accurate diagnostics for trains and trams worldwide.