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Pliant Bellows are manufactured using state of the art machines. The formed bellows are manufactured mainly by 2 types of processes.
Diameter Range | mm | 15 - 600 |
Ply Thickness | mm | 0.2- 4 |
Tube Length | mm | up to 1000 |
Internal Pressure | mm | up to 340 |
Total Power | HP | 25 |
Forming Time | Sec | < 60 |
Metal bellows with diameters ranging from 90 mm to 1500 mm (New Machine is in development for bellows up to 6000 mm) can be processed on our Mechanical punch forming machine (also known as Mechanical Expander) which is also designed by US Designers.
Single corrugation on the bellow is being formed mechanically.It’s a two-step forming process, the first step is to form the tube into convoluted shape and the second step is the re-rolling process.
The convolutions are punched individually thus eliminating thinning of bellow material.Metal bellows can be manufactured with a single ply or multiple plies. Internal and external diameters can be aligned as per customer’s requirement.
Diameter Range | mm | 90 - 1500 |
Ply Thickness | mm | < 3 (Single Ply), 5 Plies (1mm/ply) |
Tube Length | mm | < 1500 |
Internal Pressure | mm | up to 340 |
Total Power | HP | 7.5 |
Forming Time/convolution | Sec | < 60 |
Using the latest technology available in computerized bellows design analysis to EJMA guidelines, as well as a full complement of PLC controlled bellows forming equipment; we can provide design, drafting and fabrication of finished expansion joints of unlimited complexity.