What is BS EN 13906-1 - Compression spring design calculation about?  
Based on simple mechanical energy principles, compression springs are used in the simplest of tools such as pens, and also in major appliances, engines, tools, lawn mowers, medical instruments, electronics, and cell phones. 
The BS EN 13906 series focuses on cylindrical helical springs made from round wire and bar. The BS EN 13906 series details calculations for designing cylindrical helical springs, to ensure appropriate application.
BS EN 13906-1 is the first part of the cylindrical helical springs multi-series, and focuses on compression springs. BS EN 13906-1 specifies the calculation and design of cold and hot coiled cylindrical helical compression springs with a linear characteristic, made from round wire and bar of constant diameter with values and in respect of which the principal loading is applied in the direction of the spring axis.
Who is BS EN 13906-1 - Compression spring design calculation for? 
BS EN 13906-1 on cylindrical helical springs made from round wire and bar is useful for: 
- Automotive, aerospace, and consumer goods industries
- Manufacturers and suppliers of compression springs
- Designers of compression springs
BS EN 13906-1 is also useful for manufacturers and designers of tools, appliances, and machines that use compression springs as components such as:
- Engines
- Lawn mowers
- Medical instruments
- Electronics
- Mobile phones
- Battery sections of battery-run tools and machines
- Toys
Why should you use BS EN 13906-1 - Compression spring design calculation?  
Compression springs' force makes them a great vessel for storing energy, making them perfect for a variety of applications. Compression springs come in a variety of sizes and stiffness levels, which is referred to as spring rate.
The revision of the EN 13906 series has been initiated by the Association of the European Spring Federation – ESF – in order to correct the technical errors which are in the published standards and to improve them according to the state of the art.
BS EN 13906-1 provides guidance on design principles in order to optimize the dimensions of the spring by taking into consideration the needs and providing appropriate working space.
BS EN 13906-1 guides you with the design and calculator, to save you the hassle of manually computing all of the formulae and equations. This helps you to ensure that your design features the right spring dimensions for excellent performance during usage.
What’s changed since the last update?
BS EN 13906-1:2013 supersedes BS EN 13906-1:2002 which is withdrawn. BS EN 13906-1:2013 includes some technical and editorial changes with respect to BS EN 13906-1:2002. These include: 
- Updating of the normative references
- Technical corrections
