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Yinhe rubber surface friction tester
€55.00
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This device is designed to quickly check whether a pimpled (long/short) rubber sheet meets the ITTF minimum surface friction requirement (μ ≥ 0.50 at 50 mN).
It’s mainly intended for referees, clubs, and players who want to self-check rubbers before matches.
Components
Inclined test base (small angled platform)
Metal slider/weight (test block)
Level bubble
How to Use:
Place the racket flat on the inclined base, rubber side up.
Make sure the blade is steady (no wobbling).
If your tester has a bubble level, adjust until centered.
Place the metal test block on the rubber surface.
You can test in three directions:
Horizontal (across the pimples)
Vertical (along the pimples)
Sweet spot (center area where ball usually strikes)
If the slider slips down the surface → rubber friction is too low (likely fails ITTF standard).
If the slider stays in place → rubber friction is acceptable (passes).
Test at multiple points and orientations to confirm consistency.
For old or worn rubbers, friction can differ across zones.
The tester is a pre-screening tool, not an official ITTF T4 device.
Results are indicative, but usually close to what referees would find in formal checks.
Clean rubber before testing; dust/oil can lower friction artificially.
For long pips especially, test both horizontal and vertical directions since structure matters.
Pass/Fail Principle:
Pass: Block does not slide off in any tested direction.
Fail: Block slides freely in one or more test orientations.
This device is designed to quickly check whether a pimpled (long/short) rubber sheet meets the ITTF minimum surface friction requirement (μ ≥ 0.50 at 50 mN).
It’s mainly intended for referees, clubs, and players who want to self-check rubbers before matches.
Components
Inclined test base (small angled platform)
Metal slider/weight (test block)
Level bubble
How to Use:
Place the racket flat on the inclined base, rubber side up.
Make sure the blade is steady (no wobbling).
If your tester has a bubble level, adjust until centered.
Place the metal test block on the rubber surface.
You can test in three directions:
Horizontal (across the pimples)
Vertical (along the pimples)
Sweet spot (center area where ball usually strikes)
If the slider slips down the surface → rubber friction is too low (likely fails ITTF standard).
If the slider stays in place → rubber friction is acceptable (passes).
Test at multiple points and orientations to confirm consistency.
For old or worn rubbers, friction can differ across zones.
The tester is a pre-screening tool, not an official ITTF T4 device.
Results are indicative, but usually close to what referees would find in formal checks.
Clean rubber before testing; dust/oil can lower friction artificially.
For long pips especially, test both horizontal and vertical directions since structure matters.
Pass/Fail Principle:
Pass: Block does not slide off in any tested direction.
Fail: Block slides freely in one or more test orientations.