Product Specification
Capabilities Applied/Processes RF Welding, Wire Insert, Sewn Shape
Material Thickness 0.2mm ~ 0.94mm
Base Material Selection Aluminized Kevlar,Polyurethane, Hypalon,Neoprene coated Nylon,Polyurethane coated Polyester,Silicone Fiberglass cloth
Color Varies depending on material choice
Packaging To customers specifications
Delivery Time Generally 4-5 weeks
Drawing Type Accepted DWG, DXF, STEP, IGES, Native SolidWORKS
Tooling Cost Generally none

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    If you need state-of-the-art round bellows that are manufactured to your exact requirements, then Nabell USA Corporation is set to serve you. Largely used for applications requiring complete protection, our range of round bellows are made to offer long service life even under extreme mechanical and dynamic stress. We, being one of the leaders in bellows manufacturing, supply round bellows in several sizes, as well as, materials to meet your application requirements and environments. They can be robust in design, resistant to coolants, oils, dirt, debris, weld splatter, metal chips and sawdust, among others.

    Types of Round Bellows

    • RF Welded Bellows: Offering the best compression ratios, RF welded bellows are suitable for applications requiring liquid-tight protection.
    • Wire Insert Bellows: Looking for round bellows for applications wherein impact or crush resistance is a primary concern? Positive/Negative pressures a concern? Then go for wire insert bellows, which can be customized to various specifications.
    • Sewn Shape Bellows: Manufactured to withstand low/high temperatures, coolants, solvents, oils, weld spatter and more these types of round bellows perform well in the most challenging industrial environments.

    Many of our round, oval or U-shaped bellows can be manufactured to incorporate:

    • Zippers
    • Limit Tape (side tabs) to prevent overstretching
    • Cuffs
    • Flanges
    • Bolt holes
    • Vents
    • Grommeted support tabs
    • Interior/exterior metal rings
    • Sealed seams
    • Double stitching
    • Stainless steel band clamps for cuffs
    • PVC stiffeners
    • Chemical resistant spray coating
    • Wire stiffeners and supports

    Specifications of Round Bellows by Nabell

    • Applied Processes: Made from high-quality materials and fabrics, our range of round bellows are manufactured utilizing the best of thermal welding, RF welding and sewing techniques. Our expertise in these processes enable us to make, most any welded, or sewn shaped bellows you may require.
    • Base Materials: We have a diverse inventory of base materials including:
      • Aluminized Kevlar
      • Polyurethane
      • Hypalon
      • Neoprene coated Nylo
      • Polyurethane coated Polyester
      • Silicone Fiberglass cloth
    • Material Thickness: The above-mentioned materials for our round bellows are available in 0.2mm ~ 0.94mm.
    • Color: Dependent on base material and applied process. Custom colors may be available.
    • Packaging: We individually package and adhere to your specific requirements.
    • Delivery Time: Our general delivery is 4-5 weeks for our three-sided bellows. We also work to accommodate rush orders, especially customers with MRO requirements.
    • File Types Accepted: DWG, DXF, STEP and Native SolidWORKS formats.
    • Tooling Costs: Generally, None

    Applications of Round Bellows

    Several industries benefit from the use of round bellows. For years, we have been supplying these performance driven products to steel and aluminum machinery manufacturers, machinery overhaul specialists, metalworking, foundry, robotic equipment manufacturers, among several others. Made to offer higher durability and greater abrasion resistance, round bellows can be used on or act as:

    • Lead screws, precision shafts, moving air cylinders
    • Cylinder Rod boots
    • Ball Screw or spindle protection
    • Shift/joystick boots
    • Lift table skirting
    • Robotic arms, satellite antenna jack screws, and patient tables.
    • Hydraulic Cylinder
    • Gaps in Duct-work
    • Screw Jacks and Actuators and exposed machinery
    • Food processing machine
    • Pharmaceutical processing machine


    With over forty-seven years of world-class design and manufacturing experience, compliance and certification requirements have become a “norm” for us and the industries we serve. We utilize ISO 9001:2015 as our Quality Management System and meet or exceed many standards such as; REACH, RoHS, COC, FAIR CONFLICT Minerals, UL94 VTM-0 (flame-resistant test) and many other special requirements from our customers.

    Being a leading bellows manufacturer, we strive for prompt delivery at reasonable prices, without compromising on the quality. Request a Quote online by specifying your requirements. An engineer at Nabell will get back to you quickly. You can also get your questions answered from the expert professionals here by contacting us directly. Together we will work to create the most suitable round bellows that adequately serves your purpose.

    Additional Information :

    Made from Polyurethane sheets, RF Welded bellows offer the best compression ratios of our round bellows and are completely sealed to provide liquid-tight protection. We offer several sizes with standard sleeve or flange ends, and offer Polyurethane with static dissipative properties for high clean room requirements.

    Our Wire Insert bellows can be used anywhere where impact resistance is a primary concern, and are useful where positive or negative environmental pressures are present. We can manufacture Wire Insert bellows with customizable sleeves on the end or mounting flanges.

    Our Sewn Shape bellows resemble our RF welded bellows in that they can achieve excellent ratios. They are highly customizable and can be manufactured from a wide range of materials to suit many different applications. For bellows that come in contact with high temperatures, coolants, solvents, or oils we feature neoprene, silicone glass cloth, and other special materials.

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