The Random Tumble Pilling Tester is specialized equipment designed to determine the pilling and fuzzing characteristics of textile fabrics. This technically advanced machine is easy to operate and cost-effective to maintain.

This testing machine simulates pilling and other surface appearance changes that occur during normal wear. Pills form on fabric through a random rubbing action created by tumbling specimens in a cylindrical test chamber lined with mildly abrasive material. To replicate pills that resemble those produced in actual wear, small amounts of short-length gray cotton fiber are added to each test chamber with the specimens.

Fabric pilling degree is evaluated by comparing tested specimens with visual standards, which may be actual fabrics or photographs showing a range of pilling resistance. The observed resistance to pilling is reported using an arbitrary rating scale (SBT512).

To determine the pilling and fuzzing characteristics of textile fabrics.

• ASTM D3512 Standard Test Method for Pilling Resistance and Other Related Surface Changes of Textile Fabrics: Random Tumble Pilling Tester
• ISO 12945-3 Textiles - Determination of the fabric propensity to surface pilling, fuzzing or matting Part 3: Random tumble pilling method
• JIS L 1076 Testing methods for pilling of woven fabrics and knitted fabrics
• DIN 53867 Testing of textile fabrics; determination of pilling with the Random-Tumble-Pilling-Tester

• Cut a 4.13" square on the bias at approximately a 45° angle to the warp and filling directions
• Condition sample and cork liners by bone drying and then bring them to moisture equilibrium in the controlled chamber

• Place specimen and 25 mg of 5 mm (0.2") gray colored cotton fiber into the test chamber
• Place the cover on the chamber and set the timer for a running time of 30 minutes (10 minute intervals for up to 30 minutes may be more indicative for certain knits or soft-woven fabrics)
• Turn the motor switch to "on" and push the "start" button, then start the airflow
• During the run, check each chamber at frequent intervals (if specimen becomes wedged around the impeller without tumbling or lies on the bottom/side of chamber, shut off air, stop machine, remove face plate, and free the specimen. Record any abnormal behavior or hang ups on data sheet)
• After each run, rake out each specimen and clean off excess cotton fiber using the vacuum cleaner

• Place each specimen on the double faced tape in the viewing cabinet

• Vertical instrument with 2 or 4 chambers
• Compact, rigid construction with small footprint
• Simple-to-use control system
• Chambers illuminated using long-life LED technology
• Interlocked chamber doors for maximum operator safety
• Adjustable air pressure
• Audible alarm signals end of test
• Equipped as standard with American (ASTM D3512) impeller - other impellers available to special order

• Main Unit: 01 No.
• Cork Liner: 04 Nos.
• Power Cord: 01 No.
• User's Manual: 01 No.
• Inspection & Conformance Certificate: 01 No.