Vacuum gripper suction is weak

It may be age-related deterioration, but the vacuum gripper has very weak suction.
Is there any way to test if it is working properly?

Hi Toshinori,

Please send the SN of the vacuum gripper to support@ufactory.cc.
You can try to pick up 1kg object with a smooth surface, shoot a video, and send it to us.

Best regards,
Minna