A spring plunger, also called a spring pin, is a mechanical component designed to exert spring force or pressure on an object. It usually consists of a cylindrical body with a spring mechanism inside and a plunger or pin at one end that resists the spring pressing down or pushing inward. Spring plungers are commonly used in fixtures, components, and machines to position and secure objects in place. They can also be used to apply pressure or resistance, for example as part of a mechanism to regulate tension or control movement.
Spring plungers have different applications in different industries. Some common applications for spring plungers include:
Fixtures and Fixtures: Spring plungers are commonly used in fixtures and fixtures to hold and position workpieces during machining, welding, or assembly processes. They provide precise positioning and allow for quick adjustments.
Indexing Mechanism: Spring plungers can be used in indexing mechanisms to lock and release rotating parts at specific intervals. They are commonly used in machinery and equipment that require precise positioning and alignment.
Transportation and Automotive: Spring plungers are used in the automotive and transportation industries for tasks such as securing panels, adjusting belt or chain tension, and securing hatches or doors.
Medical Devices: In healthcare settings, spring-loaded plungers are used in medical devices such as syringes to facilitate smooth operation, precise dose control and a reliable retraction mechanism.
Electrical and electronic equipment: Spring plungers are used in switches, connectors, and contact devices to establish good electrical connections, maintain contact pressure, and ensure reliable signal transmission.
Furniture and Fixtures: Spring plungers are commonly found in furniture and fixtures such as locks, drawer slides, and adjustable mechanisms on tables and chairs.
These are just a few examples, the applications for spring plungers are wide and varied, depending on the specific industry.
