FDK-124 Wheel diameter gauge

Compact and precise gauge for in-site railway wheel diameter measurement. Designed for field use with a 124 mm measurement position and high-precision indication.

Key features

Measurement position: 124 mm
Range configurable from 400 to 1400 mm
Accuracy ±0.2 mm with 0.01 mm display
Built-in LED display with rotation and brightness settings
Lightweight and rechargeable (≥1000 measurements)
Compatible with calibration blocks and reference wheels

Performance highlights

The FDK 124 Wheel Diameter Gauge is part of the FDK Series, engineered for direct, high-precision measurement of wheel rolling circle diameters on railway, tram and metro systems. This specific model features a 124 mm measurement position and delivers reliable results without the need to remove wheelsets.

Usage conditions

Designed for harsh industrial field environments, the FDK 124 operates between -15 °C and +55 °C and complies with EU directives for EMC and RoHS. The unit is powered by two rechargeable AAA batteries, allowing over 1000 measurements per charge.

Possible applications:

Rolling stock wheel wear monitoring
Depot-based inspection and maintenance
Wheelset diagnostics during service routines
Quality control in railcar manufacturing
Metro and tram maintenance workshops

Advantages of choosing this product

The FDK 124 enables quick diameter readings using a precise three-point measurement technique. The built-in LED screen offers switchable units (mm/inch), brightness settings, and image rotation. It also supports advanced functions like averaging for more accurate results and calibration routines with reference blocks.

Other important features:

Compact size and lightweight (0.5 kg)
No wheelset removal required
Sensor zero and base calibration modes
Sleep mode for power saving
Rugged construction for field durability

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

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Talk to our experts

Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.