Specialist in large-scale CNC machined components, welded fabrications and complex steel structures
Our Atherton facility provides CNC machining, fabrication / welding, NDE, proof-load testing, assembly and coating all under one roof, enabling components up to 35 tonnes to move through multiple manufacturing stages without leaving the site.
We operate one of the largest capacity sub-contract machining facilities in the UK, and with our team of professional welders, we are leaders in the manufacture of complex components, assemblies and large-scale steel structures.
Our knowledge and capabilities in advanced manufacturing is transferrable across a diverse range industries and we are an approved supplier to OEMs and leading operators globally, delivering an engineering solution for critical service applications.
We take your high integrity components, assemblies and structures from plate to paint within our facility.
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We deliver complex components and high integrity structures that provide vital engineering solutions in load, service and safety critical applications.
Our advanced engineering supports operational performance and reliability across the most demanding service conditions and environments.
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Stephenson Engineering has extensive large-capacity CNC machining capabilities for components and structures up to 14 metres and 35 tonnes in weight.
Our range of machines covers:
• Milling
• Drilling
• Vertical boring
• Horizontal turning
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Core to our business is the manufacture of complex, high integrity steel fabrications in various section sizes up to 35 tonnes in weight.
• TIG/MAG/FCAW/SAW processes
• 234 Procedure qualification records
• Qualified to thicknesses from 8 to 350mm
Multi-capability manufacturing benefits
Our innovative turnkey service provides the following:
Combining separate specialist services promotes manufacturing efficiency.
Integrating all manufacturing processes delivers total control over schedule and cost.
One point of contact for seamless project management without multiple suppliers and contracts.
Operating multiple services reduces transport costs, time and unnecessary packaging.
Class leading expertise, knowledge and capability delivered by all departments.
Quality built in
We have established a robust, repeatable production programme with standardised quality procedures.
ISO 9001:2015, ISO 3834 Part 2, ISO 1090 EXC3, ISO 15085.
All production processes come under a single quality system.
International Welding Engineer lead / Dedicated documentation controllers.
Responsible material sourcing with total traceability and records.
Our Sectors
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Subsea and offshore
Stephenson Engineering has supported the subsea oil and gas sectors for the past 45 years, working with all the oil majors and service companies. We produce high-integrity customer-designed products to customer-designed specifications.
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Mining
Our unparalleled sector knowledge and experience is combined with modern engineering techniques and processes to produce an unbeatable range of products and specialist services.
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Renewables
Keen to play our role in ensuring a sustainable future, Stephenson Engineering is increasingly active in the renewable energy sector. We’ve been manufacturing components for offshore wind platforms for many years, creating fabrications that are precise, tolerant and reliable.
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Nuclear
Stephenson Engineering works across both the civil and defence nuclear sectors, producing machined steel fabrications including Class 1 nuclear components.
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Rail and transportation
Stephenson Engineering has worked within the rail industry for many years, producing a variety of components, from bridge bearings and shear plates to steam locomotive motion.
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Defence
Our engineering facilities are ideally suited to manufacturing large steel machined fabrications, and in this respect we deliver a variety of components to the defence sector.
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Civil Engineering
Civil engineering projects have always formed an interesting and challenging part of our work. We have manufactured components for many UK and overseas projects, concentrating mainly on large and complex engineered nodes and fittings.
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Emerging energies
With over three decades of engineering experience within traditional energy sectors, we are perfectly placed to support CCS projects and hydrogen technology.
