Ultrasonic Flaw Detectors
Portable ultrasonic flaw detector designed for rail inspection crews that need to detect transverse cracks in the rail head at operating speed without requiring heavy lifting or crane support. It uses a wheel probe with automatic positioning and angle control, and records A-scan and B-scan data for later review.
Problems This Equipment Solves
- Transverse cracks in the rail head are invisible to visual inspection and can cause derailments
- Manual walking inspection is slow and subjective, with limited coverage per shift
- Single rail equipment requires two separate passes to inspect both rails
- Heavy detection systems require lifting gear to get on and off track
- Paper-based results cannot be rechecked after the crew has left the site
Who This Category Is For
Railway inspection teams conducting routine checks on main lines and industrial tracks
Metro operators inspecting track during limited night maintenance windows
Rail maintenance contractors covering multiple lines with one crew
Port and mine operators maintaining heavy haul industrial rail with short possession times
Core Advantages
- Detects transverse cracks in the rail head using primary and secondary waves through a wheel probe
- Records A-scan and B-scan data for playback and expert review after the inspection
- No single module exceeds 48 kg, allowing two people to carry and assemble the unit
- Can be assembled or disassembled on track within five minutes without lifting equipment
- Operates at 5 km/h during continuous detection, enabling consistent data collection
Where It Is Used
- Routine ultrasonic inspection of state-owned main line track during scheduled possession windows
- Periodic inspection of private and industrial railway lines with limited access time
- Port and mining company track where inspection windows are short and access is difficult
- Urban metro track inspected during night maintenance hours with minimal disruption
- Follow-up verification runs after rail grinding, welding or replacement operations
Related Cases and Industries
UR18-D Pass the review of standard measurement technology
UR18-D became the first enterprise in China to obtain certification for special railway measuring instruments in ultrasonic rail t
Dual Rail Ultrasonic Flaw Detection Vehicle Enters African Market
First use of the UR18-D dual-rail ultrasonic flaw detection vehicle on the Mombasa-Nairobi Railway in September 2017 Successful in
State Owned Railways
State-owned main line railways require reliable, repeatable ultrasonic rail flaw detection to identify internal defects such as tr
Urban Metro and City Rail
Urban metro and city rail systems operate under strict night maintenance windows, where track inspection must be fast, reliable, a
Frequently Asked Questions
How many people are needed to assemble the detector on track?
Two. The unit is designed with a disassembled platform where no single module exceeds 48 kg, allowing a two-person crew to carry and assemble or disassemble the detector within five minutes.
What defects does it detect?
It uses primary and secondary waves through a wheel probe to detect transverse cracks in the rail head, and records A-scan and B-scan data so suspected locations can be re-checked.
How much track can one shift cover?
Detection speed is not less than 5 km/h, and the unit supports continuous operation for up to 4 hours or 60 km per shift.
Can it be used at night?
Yes. The unit includes lighting that reaches not less than 2 lx at 50 m, and the console displays are readable in low-light conditions, suitable for night inspections.
How is the inspection data reviewed?
The software records, plays back and transfers job data, speed, sensitivity and A-scan and B-scan data, allowing an analysis centre to review the run and determine which locations require manual verification.
Do you provide operator training?
Yes. We provide pre-sales, in-sales and after-sales technical support, on-site engineer training and construction team support, and customer teams can also train at our company.
How do I get a quotation?
Email [email protected] with your rail profile, line type and the annual kilometres you need to inspect and our engineers will come back with a configuration and a price.
Ask an Engineer About Ultrasonic Flaw Detectors
Tell us the line type, rail profile and possession window you work with and we will recommend the right model from this category.