Edge Welded Metal Bellows

An Edge Welded Metal Bellows is manufactured from multiple precision-formed diaphragms. The diaphragms are alternately welded along their inner and outer edges to create a flexible corrugated assembly.

This construction is different from a bellows hydroformed from a complete metal tube. The number and thickness of the diaphragms can be configured to provide a larger axial deformation within a limited installation length.

Stainless steel or alloy materials can be selected according to the application. Diaphragm thickness is designed according to the required displacement and elastic response. The number of convolutions and product diameter can also be customized to suit the equipment space.

The ends may be fitted with welding seats, flanges, or other custom interfaces for direct connection to vacuum equipment, valves, or precision actuators.

The Edge Welded Metal Bellows is suitable for equipment with demanding requirements for axial travel, structural sensitivity, and compact installation dimensions.

Each diaphragm group can be designed around the target movement. This allows the bellows to provide the required deformation while maintaining a relatively short axial length.

For vacuum equipment, the purchaser should confirm the interface structure, movement travel, media isolation requirement, and expected operating cycles. For precision actuators, the installation diameter, connection seat, movement direction, and available space should also be provided.

Diaphragm thickness, weld structure, number of convolutions, and product diameter are connected design factors. They should not be selected independently without considering the complete operating requirements.

The product requires careful control of diaphragm forming and alternating edge welding. Yixing Blog Pipeline Equipment Co., Ltd. has teams for metal bellows development, process design, welding production, and assembly.

During product development, the diaphragm dimensions, welding positions, and end components can be reviewed according to customer drawings or prototypes. During manufacturing, attention is given to weld quality and assembly consistency.

The company regularly conducts practical welding assessments. Each weld and its batch traceability are treated as important parts of the quality management process.

Laser cutting, argon arc welding, and other metal processing capabilities can also be used to produce end seats, flanges, and non-standard connection parts. This allows the bellows to be delivered as a completed component rather than as an individual flexible element.

This product is suitable for vacuum equipment, semiconductor manufacturing equipment, precision actuators, industrial valves, and high-sensitivity displacement components.

Products can be customized according to technical drawings or an existing prototype. The minimum order quantity is one piece, supporting product trials, equipment maintenance, and small precision orders.

A custom sample can be developed before batch production. According to the supplied information, custom sample development generally requires about six months. The production time for customized products is normally two to three months.

Every finished product is inspected before packaging. Third-party inspection arranged by the customer is supported. Small packages and wooden cases are available. If minor transportation damage occurs, repair or replacement may be arranged according to the actual condition.

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