BL Series Plastic Bag Vacuum Suction Cups & Fittings

BL30-5, BL40-5 or BL50-5: Identify What Is Supplied

BL options include cup bodies, red assemblies and separate fittings. Keep the size, material/grade label and thread configuration together; the same nominal cup family can represent different supplied parts.

For thin-film or bag-opening trials, keep seams and folds out of the intended sealing area and test release at the required cycle. Packaging use does not by itself confirm direct food-contact suitability.

Compare Related Product Families

These links are for comparison, not a confirmed interchangeability or fit list. Verify the complete model and drawing.

• Compare F18/F22/F26/F33 cup and fitting options
• Compare VP bag-opening cups and dedicated screws

Applications and Suitable Workpieces

BL Series Plastic Bag Vacuum Suction Cups & Fittings: These cups are designed for opening, separating and transferring flexible film, plastic bags and pouch-type packaging without relying on a rigid flat surface.

Recommended applications

• Plastic bags, flexible film, laminated pouches, stand-up pouches and light packaging materials.
• Bag opening, pouch feeding, filling and sealing machines, packaging robots and automated pick-and-place stations.
• Soft or unstable packaged products where a flexible lip or bellows stroke helps maintain contact.

Model and selection notes

• BL30-5, BL40-5 and BL50-5 identify size. White/red silicone, black NBR, premium, cup-only and complete assembly variants must be matched by full code.
• Choose the exact cup geometry and diameter from the model image; small changes in lip shape can affect sealing on thin film.
• Silicone is commonly selected for flexible sealing and wider temperature capability; NBR is useful for wear resistance and lightly oily industrial conditions; conductive models are intended for static-sensitive handling where specified.
• Wrinkling, folds, perforations and very thin film can cause leakage. Test the actual film thickness, vacuum level and cycle speed before production.

Product photos, dimensions and application references

Engineering dimensions are in millimeters. Match the full model, material, grade and thread configuration. Supplied dimensions differ between some cup colors and assemblies.