Bellows expert IRIE KOKEN’s image


MiSUMi campaign

What are

“Bellows” can be translated as fuigo or jabara in Japanese. “Fuigo” is a tool that was used to blow air into kilns by blacksmiths long long ago. “Jabara” has various meanings, including the body of an accordion. In vacuum-related fields, cylindrical objects made of metal are pleated to demonstrate expansion/contraction properties, airtightness and spring properties. These are called “bellows.” In other words, “bellows” = “metal expansive pipes.”

Types of

Metal bellows are divided mainly into welded bellows (alternately welding the inner diameter and outer diameter of a thin metal washer to form a pleated tube) and formed bellows (pressure is applied to a thin metal pipe to form a pleated bellows tube), and both have distinctive characteristics.

Features of

Item Welded bellows Formed bellows
Expansion/contraction properties Large Small
Cost High Low

Products guidance

Metal bellowsMetal bellows
Welded bellows
Formed bellows
Flexible tubes
Vacuum valvesVacuum valves
Rectangular type gate valves
Round type gate valves
Large-size rectangular type
gate valves
L-shape valves
(Angle valves)
Vacuum pipingVacuum piping parts
Flanged pipes
Pipe parts
Flexible tubes
L-shape valves
(Angle valves)
Vacuum chamberVacuum chamber
Linear feedthroughs
Rotary feedthroughs
Magnetic feedthroughs
Menu by field
Semiconductor field
FPD (flat panel display)field
Railways field
Accelerator and nuclear fusion field
Medicaldevices field

Introduction example/video