Compression Springs

• Functionality and Applications: Compression springs are essential mechanical components designed to resist compressive forces. They store energy when compressed and release it when the force is removed, providing controlled pressure or return forces. They are widely used in applications ranging from simple push buttons and automotive suspensions to complex machinery and medical devices. Other common uses include: valve mechanisms, electrical contacts, shock absorption, product ejectors and battery contacts.
• Material Selection and Performance: Compression springs can be manufactured from various materials to meet specific requirements, including stainless steel for corrosion resistance, music wire for high strength, and exotic alloys for extreme temperatures or environments. The choice of material directly impacts the spring’s performance, durability, and operating life.

Compression springs are incredibly versatile components, and their applications span a vast range of industries. Essentially, compression springs resist force applied to them, storing energy when compressed and releasing it when expanded. Murphy & Read specializes in precision, tight tolerance applications. Below are examples of how compression springs are used in some of the sectors we work with frequently:

• Medical: Used in medical devices like syringes (for controlled injections), surgical instruments, and diagnostic equipment. They provide precise and reliable force in critical applications.
• Hardware: Found in various hardware items, such as push-button mechanisms, door latches, and mechanical fasteners. They provide the necessary force for these devices to function correctly.
• Automotive: Crucial in vehicle suspension systems (absorbing shocks), clutch mechanisms, and engine valves. They contribute to a smooth ride and proper engine function.
• Household Tools and Appliances: Used in tools like spring-loaded clamps and in appliances like washing machines (suspension) and lawnmowers. They provide necessary tension and shock absorption.
• Aerospace: Used in aircraft landing gear, control systems, and various mechanical assemblies. They must withstand extreme conditions and provide reliable performance.
• Valves: Essential in controlling fluid flow in various systems. They provide the force needed to open and close valves, ensuring precise control.
• Computer Peripherals: Used in keyboards (providing tactile feedback), printers (paper feed mechanisms), and other peripherals. They contribute to the smooth operation of these devices.
• Electric Controls and Assemblies: Used in switches, relays, and circuit breakers. They provide the necessary force for electrical contact and switching.
• Military: Military applications are very broad, including use in weaponry, vehicles, and communication equipment, requiring high reliability.

Need a CAD drawing? Try our free CAD configurator tool to produce standard or custom spring models.

We use a range of spring materials to meet the needs of our diverse customer base. Here are the materials we use most often and their maximum recommended % tensile: