Suction Cup Material
The material of the suction cup affects how it performs. Some vacuum cups can handle a rough surface, others are able to withstand a wide range of substances. Even a certain suction cups can withstand oil and ozone. When it comes to electronics industry, an anti-static vacuum cup is necessary to ensure the quality of workpieces.
There are various types and materials used for different application. Our vacuum cups come with various materials from NBR, NR, silicone, PU to Fluoro rubber in different Shore hardness. Also, the shape of the base surface (round, oval, rectangular), the type of supporting surface (grooves, burls, support bars) and the internal volume of the seal play a major role. We provides custom-made solutions for meeting different requirements.
Material by Characteristics
NBR (Nitrile butadiene rubber), NR (Natural rubber), SIR (Silicone), FKM or FPM or Viton® (Fluoro rubber), PU (Polyurethane) are common in material list of vacuum suction cup.
- Nitrile-rubber: suitable for even, oily and general workpieces.
- Silicone-rubber: good and safe for food products and high temperature environment.
- Polyurethane: suitable for workpieces with a rough surface and endure high stress/tension force.
- FKM, FPM or Viton: works stably in industrial high-temperature applications.
The application and working environment are important for selecting the right suction cup and material. Oil resistance, abrasion resistance, temperature range, hardness (Shore-A) are critical specifications.
Choice of seal materials are important for different application and working environment. For example, NBR is an excellent material for general industry. Its top performance in many categories and economic cost makes it overall high value. Silicone is excellent for high temperature working environment or product handling. Applications such as removal of glass or hot workpieces require silicone as the main material for seals.
International Standard ISO 7619-1:2010
To meet global supply chain standard, the materials of our products follow the Shore hardness test from ISO 7619-1:2010, ensuring highest quality. ISO 7619-1:2010 specifies a method for determining the Shore hardness of rubber by means of durometers.
*additional materials and requirement for shore durometers are available on request.