Hydroformed bellows are thin-wall metal bellows produced by applying internal hydraulic pressure to a metal tube inside a precision forming die. This process creates controlled corrugations that allow the bellows to absorb axial movement, compensate misalignment, reduce vibration, and provide reliable sealing in pressure, vacuum, and fluid systems.
They are widely used in aerospace, semiconductor equipment, medical devices, high-vacuum systems, oil and gas, automotive, and industrial applications.
We provide hydroformed bellows, bellows assemblies, expansion joints, and flexible connection solutions for pressure, vacuum, fluid, and motion compensation applications.
Available in welded or seamless structures, single-layer or multi-layer designs, with custom parameters.
Bellows can be integrated with flanges, fittings, tubes, or end connections through welding, brazing, or other joining methods.
Designed to absorb thermal expansion, vibration, pressure fluctuation, and axial movement in piping or vacuum systems.
Bellows couplings can provide flexible connection, vibration reduction, and misalignment compensation.
Hydroformed bellows can be manufactured from welded tubes or seamless tube blanks depending on pressure, leakage, cost, and application requirements. Both processes create controlled corrugations through hydraulic forming while offering different advantages for specific operating conditions.
Suitable for cost-effective bellows production where welded tube blanks can meet the required pressure, leakage, and fatigue performance.
Suitable for applications requiring a seamless structure, improved leak integrity, and higher reliability under demanding operating conditions.
Hydroformed bellows provide reliable sealing, pressure resistance, and motion compensation for demanding systems. They are suitable for applications requiring stable mechanical performance, customizable materials, and cost-effective production.
Minimum ID: 6.35mm.
Stainless steel, copper alloy, nickel alloy...
Helium leak rate down to 1 × 10⁻⁹ cc/sec, depending on design.
Meets extremely demanding requirements.
Customizable bellows with up to 5 layers or more.
Designed for 1 million to 30 million+ cycles, depending on structure.
Adjustable through wall thickness, geometry, and material selection.
Axial compression or extension up to 35% depending on design.
Pressure capability from 6.9 MPa to 24.13 MPa, depending on structure.
We produce welded and seamless tube blanks for hydroformed bellows based on application requirements.
We manufacture flanges, fittings, joints, and other precision machined components for bellows assemblies.
TIG, plasma, resistance, and laser welding are available for stainless steel, titanium, and nickel alloy assemblies.
Products can be tested for dimensions, spring rate, leakage, pressure, vibration, low temperature performance, and cycle life.
Ultrasonic cleaning, drying, and clean packaging can be provided according to application requirements, helping reduce contamination risks in high-cleanliness industries such as semiconductor, medical, food processing, pharmaceutical, and laboratory equipment.
Full traceability can be provided from raw material inspection to finished product delivery.
We design and customize hydroformed bellows according to international industry standards, application requirements, and customer-specific specifications. Providing the following parameters will help us evaluate feasibility and complete the product design more efficiently.
