CONVUM RA Mark-Free Vacuum Pads

• Molecular-level surface treatment: A special surface treatment helps reduce foreign matter adhesion and pad material transfer to the workpiece.
• Designed for mark-sensitive handling: RA Series is well suited for glass sheets and other workpieces where suction marks need to be minimized.
• Available for multiple cup shapes: The RA treatment can be applied across multiple suction cup series, making selection more flexible for different workpiece shapes and tooling layouts.
• Two material options: Available in F-RA mark-free fluorine rubber and FE-RA mark-free conductive fluorine rubber.
• Applications: Suitable for glass sheets and other cosmetic-sensitive workpieces that require cleaner vacuum pick-and-place handling.

Q1: What is the RA Series?
A: RA Series is a mark-free vacuum pad line designed to reduce suction marks, foreign matter adhesion, and pad material transfer on the workpiece surface.

Q2: What is the main difference between RA and standard vacuum pads?
A: RA uses a special surface treatment that strengthens intermolecular bonding in the rubber, helping reduce surface transfer and residue on the workpiece.

Q3: What types of workpieces is RA Series intended for?
A: This series is intended for glass sheets and other workpieces that need lower-mark vacuum handling, especially when surface appearance matters.

Q4: Is RA limited to one cup shape?
A: No. RA is a treatment option that can be applied to multiple suction cup series, so geometry should be selected based on the workpiece shape and tooling layout.

Q5: What is the difference between F-RA and FE-RA?
A: F-RA is mark-free fluorine rubber, while FE-RA is mark-free conductive fluorine rubber. Both have a hardness of 70, and FE-RA also provides conductivity with volume resistivity of 10⁴ to 10⁷ Ω·cm.

Q6: Which series and sizes are available with RA treatment?
A: The catalog lists PAG, PBG, PFG, PJG, PQG, and PUG with their corresponding size ranges. Other series and sizes should be confirmed based on the catalog.

Q7: Will the mark-free effect be the same in every application?
A: Not always. The actual effect varies depending on the workpiece, operating conditions, and environment, so an on-site test is recommended before final adoption.

Q8: What should I confirm before selecting RA pads?
A: It is recommended to confirm the workpiece surface condition, appearance requirements, cup geometry, size, conductivity needs, and the fitting or mounting method used in the equipment.