Spring Calculator

We now have a dedicated website for carrying out spring calculations and custom spring specifications. You can even order your specified spring online.

JB48 Custom Spring Calculator

How Does The Site Work?

It’s simple really…

1. Spec your spring or springs online (and download a PDF specification)
2. Optionally you can place your order online with us
3. We’ll manufacture your springs to your exact specifications and despatch your finished springs within 48 hours of you placing your order online.

Every spring is custom made to your exact online spring specification, manufactured at our purpose-built production facility in the UK, inspected to BS 1726-Grade 1 Standards, and despatched to you within 48 hours of your order being placed.

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0 Years
Spring-making experience
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Purpose-built production facility

Excellence Is Our Standard

Over the last 128 years JB Springs has established an enviable reputation for quality in the manufacture of safety critical parts and we understand the importance of maintaining the very highest standards whilst meeting delivery deadlines.

Our emphasis on quality is evident throughout the factory and accreditation to ISO 9001:2015 is seen only as a starting point from which to build.