Flaw testing, flawlessly done

The Cyl-Sonic Digital Micro System scans through paint and most clear coatings to detect potential pits, cracks, corrosion and gouges.  In addition, the system measures and detects lost cylinder wall thickness as well as identifies undesirable water moisture inside the cylinders.

Wheel probe technology

The ultrasonic wheel probe includes nine complementary high-frequency transducers - the most integrated transducers in one unit in the industry - that search for flaws in transverse, longitudinal and oblique directions.  This ensures 100% coverage of required exam volume and area.  The four oblique transducers excel in detecting any water moisture droplets inside cylinders.

Perfect for specialty gases

The Cyl-Sonic Micro is the ideal system for facilities specializing in small cylinder specialty gases, such as medical and beverage gases. In addition, the Micro is small enough to be portable — easily fitting on a cart to move to different locations as needed.  The Micro is also configurable to accommodate “grab-and-go”, or integrated, valves.

Safer to operators and environment

Unlike hydrostatic testing methods, ultrasonic examination eliminates the need to remove hazardous gases from cylinders, helping protect both your operators and the environment.  The method does not require valve or O-ring removal, so there is less need for valve replacement as well as reduced cylinder neck thread damage. Ultrasonic examination also eliminates the need to introduce water into the cylinders, helping prevent product contamination and eliminating or minimizing the number of post-re-qualification cylinder treatment processing steps.

Saves Time, Lower Costs and Simple Maintenance

The Cyl-Sonic Micro saves on personnel costs.  Since operators don’t need to spend time drying and re-valving the cylinders, daily production levels can be much higher.  The cost per cylinder test is lower for UE testing than hydrostatic testing. With just two motors, the Micro uses the least power and has the lowest water requirements of all our cylinder systems, making it extremely economical to operate.  In addition, the system has fewer mechanical components, both simplifying and minimizing preventive maintenance.  The electronic components are digital and interchangeable with all our testing systems


Calibration standard ensure accuracy

Each system uses a calibration cylinder standard with simulated flaws. This allows accurate comparison testing against known simulated flaws.

Software control and record retention

The Cyl-Sonic Cylinder Test application has been updated to support Nordco’s high definition, digital control electronics.  The software allows the operator to control all axis motion, including position, rotation and sensitivity.  Calibration setups are stored and reused.  The software displays real-time scanning test results showing the locations of any detected flaws; the system also alerts the operator about a cylinder’s pass/fail status.

Meets all regulatory requirements

The Cyl-Sonic Micro complies with the requirements of the following regulatory agencies:

  • DOT - Meets US Department of Transportation cylinder requalification requirements (SP 14920)
  • TC - Meets Transport Canada cylinder requalification requirements (SU 10807)
  • ISO - Meets International organization for Standardization requirements (ISO 10461 & 6406)

Standard Configurations and Options


Standard System 1102510 Cyl-Sonic Micro with Digital System
Optional Equipment Length Test Validation: A proximity sensor that validate that the cylinder has been tested over its entire length.





Length 4’ 8” (1422 mm)
Width 2’ 3” (686 mm)
Height 3’ 5” (1041 mm)
Cylinder Inspection  
Product to be tested

- Steel (DOT 3A and 3AA)
- Aluminum (DOT 3AL)
- Other cylinders allowed in accordance with established standards and specifications

Diameter Range 3.2” to 8.0” (81 mm to 203 mm) outside diameter
Wall Thickness 0.080” to 0.5” (2 mm to 12.7 mm)
Length 4” to 30” (102 mm to 762 mm)
Exam Coverage 110% with a 0.15” (4 mm) helix
System Performance 98%+ system uptime
Electric 110 VAC, 60 Hz, 10A
Pneumatic 80 psi (5.5 bar)


Estimated System Throughput
Cylinder Model Outside Diameter Length w/o Valve/Cap Estimated Throughput
M6 (3AL) 3.2" 11.8" 50-60 cylinders/hour*
Medical E (3AL) 4.2" 25.75" 30-40 cylinders/hour*
20 (3AA) 5.25" 14" 30-40 cylinders/hour*

* Operator dependent


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