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air checker for toyota tsudakoma
Demo Video

Demonstration video of TR-7800AC Portable Air Checker

The TR-7800AC Portable Air Checker for Toyota/Tsudakoma AJL contributes to the improved quality control of your reeds based on comparison of air flow graphs.


Continuous Measurement

One of the advantages of the TR-7800AC is continuous and digital measurement (1mm pitch) of air flow. Rather than manual measurement and checking of just a few points, a comprehensive air flow status of the reed is provided. Location of unusual air flow along the reeds can be identified on the graph generated by the encoder behind the unit.

On-loom Measurement

The TR-7800AC enables you to measure air flow on-loom with only a minimum preparation of your Toyota/Tsudakoma AJL. (move the reed to the vertical position, loosen the warp yarns, lift and fix the reed)

Easy data input, graph, and comparison with past data

After installation of software, air flow data can be imported from the TR-7800AC to your personal computer through a USB cable. The air flow data can be quickly and easily converted to a graph format. Those data can be stored according to your reed serial numbers, so comparison with past data of the same reed is feasible (10 measurements per serial number can be stored in the PC file).

<Sample of Air Flow Graph>

Red line: Dirty reed before cleaning

Green line: New reed or after cleaning

Air flow of new reeds is the best. Air flow that is too high may cause the weft to fly out of the tunnel. Fluctuating air flow may prevent the stable flight of the weft. Air flow that is too low may cause unexpected weft flight anomalies.

air flow graph
Other Feature

Other Features of the TR-7800AC

– Calibration before every measurement can ensure accuracy of your air flow data.

– Real time checking of air flow on the LCD of the TR-7800AC during measurement is also feasible. The graph can be displayed on the LCD, too.

– PDF output of the graph is possible. This makes it easy to distribute results amongst necessary co-workers.

– Encoder position is adjustable depending on the outer height of your Toyota/Tsudakoma AJL reeds.

– cmAq and 10-3 kgf/cm2 are the employed units of air flow.

– Standard AA type batteries are applied. Low battery charge is indicated on the LCD screen. Data is not deleted by battery replacement.

TR recommends a combination of the TR-7800AC and the TR Reed Cleaner (TR-7600RC: On-loom Reed Cleaner or TR510: Ultrasonic Reed Cleaning Machine) for quality control of your reeds:

air checker for toyota tsudakoma




Applicable AJL Makers


Maximum measurable length


Data Storage Capacity (main unit)

Maximum 10 data sets

Data Output (on PC)

Graphical display and CSV output

Unit of Measurement

cmAq・10-3 kgf/cm2

Air Supply Pressure

0.5Mpa or more

Power Supply

Type AA batteries (2 pieces) / USB power source

Method of Fixation



Magnet (Lightly push the instrument to magnetically fix to the reed)



Compatible Operating Systems

Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista


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