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Expert Digital Innovation Partners The term bellows (only used in the plural) is synonymous with leather bellows, which were designed to blow air into the fireplace, dating back many centuries. Today, bellows are an integral part of machines used across industries. These parts are sometimes referred to as flexible covers, convolutions, accordions or machine way covers. Made from materials ranging from leatherette to metal, bellows are available in many sizes and shapes. What purpose do they serve? Are there different types of bellows? Read this post to find your answers.

• Bellows are functional covers that will expand and retract, as required.
• Rather than being the primary component, they are typically used as protective covers for the primary components of a machine. Some exceptions are fireplace or camera bellows where, without the bellows, these products could not function or exist, as we know them.
• Rather than being the primary component, they are typically used as protective covers for the primary components of a machine. Some exceptions are fireplace or camera bellows where, without the bellows, these products could not function or exist, as we know them.
• Bellows can be heat shields, medical ventilators, light seals for camera optics, protective covers for linear rails, ball-screw covers, as well as, dental and surgical table components. Some can retain liquids and gases in pressure-filled environments while allowing compression and expansion. The balance of strength versus movement and flexibility are the key characteristics of a well-made functional cover. Quality bellows must be custom designed to match the applications requirements.

What are the Different Types of Bellows?

Bellows are mainly categorized into three types depending on their method of manufacturing. They are:
1. Welded Bellows
2. Sewn Bellows:
3. Folded Bellows