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Business Details
27 Years
experience
Precision Spring Manufacturing Solutions
Established in 1999, Longcroft Engineering has built a reputation as a leader in spring and pressing design, prototyping, and manufacturing. Our expertise spans decades, combining modern technology with hands-on engineering knowledge to deliver bespoke solutions for industries ranging from aerospace to medical engineering. We specialise in solving complex challenges through innovative spring design, reverse engineering, and value-engineered manufacturing processes. Our ISO 9001:2015 certification underscores our commitment to quality, while our global client base reflects our ability to meet diverse technical demands. From rapid prototyping to high-volume production, we prioritise precision, reliability, and customer collaboration.

Our teams technical excellence ensures products perform optimally in harsh environments, adhering to stringent industry standards. With facilities in Rochdale and Wokingham, we offer JIT stockholding and material expertise, including exotic alloys and corrosion-resistant coatings. Our approach balances creativity with rigorous process control, ensuring components meet exact specifications for performance and longevity. By focusing on client-specific needs, we transform engineering challenges into efficient, cost-effective solutions. This dedication to innovation and quality positions us as a trusted partner for critical spring applications worldwide.
Services
Coil Springs Clock Springs Flat Springs Wire Forms Sub-Assemblies
Details
  • Year established: 1999
Highlights and features
  • We offer over two decades of expertise in precision spring engineering.
  • Our ISO 9001:2015 certification guarantees rigorous quality control.
  • We provide rapid prototyping and reverse engineering capabilities.
  • Our JIT stockholding reduces client costs and delivery times.
  • We work with exotic materials for extreme environmental performance.
Associations and certifications
  • ISO 9001:2015
Services
Coil Springs
We design and manufacture precision coil springs for compression, extension, and torsion applications. Our solutions cater to industries requiring high durability in extreme conditions, such as aerospace and offshore sectors. Using advanced materials and ISO-certified processes, we ensure optimal performance and longevity for critical engineering systems.
Flat Springs
Our flat springs, including clock and constant-force variants, deliver reliable energy storage and release for precision mechanisms. Engineered from corrosion-resistant alloys, these components meet exacting tolerances for medical devices, electronics, and industrial machinery applications.
Wire Forms
We produce complex wire forms tailored to bespoke geometries and functional requirements. From prototyping to mass production, our wireforms ensure structural integrity and dimensional accuracy for automotive, telecoms, and precision engineering sectors.
Reverse Engineering
Our team recreates springs from damaged parts or sketches, optimising designs for improved performance and cost efficiency. This service combines technical expertise with advanced testing to solve legacy component challenges across industries.
JIT Stockholding
We offer just-in-time stockholding solutions to reduce client inventory costs while maintaining supply chain reliability. This service leverages volume production efficiencies and strategic logistics for timely delivery of critical spring components.
Questions
What industries do Longcroft Engineering serve?
We supply precision springs to aerospace, medical, marine, oil and gas, telecommunications, and precision engineering sectors globally.
Can you manufacture custom spring designs?
Yes, we specialise in bespoke springs from sketches, samples, or CAD data, including reverse engineering for damaged components.
What materials do you use for springs?
We work with stainless steel, titanium, Inconel, Hastelloy, phosphor bronze, and carbon spring steels for diverse environmental conditions.
Are your springs ISO 9001 certified?
Yes, our quality systems comply with ISO 9001:2015 standards across design, production, and delivery processes.
Do you offer rapid prototyping services?
Yes, we provide rapid prototyping with iterative testing to validate designs before full-scale manufacturing.
What is your JIT stockholding service?
Our JIT service maintains inventory against call-off orders, reducing client costs while ensuring timely delivery of critical components.
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