Electronics in oil and gas applications fail for predictable reasons: inadequate environmental protection, poor workmanship, or components that were never designed for sustained exposure to vibration, temperature extremes, moisture, and corrosive atmospheres. When electronics fail offshore or in a processing facility, the consequences go well beyond the cost of replacement.
Nitronica manufactures PCB assemblies, cable assemblies, wiring harnesses, electro-mechanical systems, and full product builds for equipment used in oil and gas environments. Working from our facility in Ballynahinch, Co. Down, we supply product companies and OEMs across the UK and Europe that need a contract electronics manufacturer with the quality discipline that demanding sectors require.
What Oil and Gas Electronics Must Withstand
Equipment deployed on offshore platforms, in subsea systems, in refineries, and in pipeline monitoring stations operates in conditions that stress every part of the assembly – not just the electronics. Understanding the failure modes is the starting point for designing assemblies that last.
Temperature and Thermal Cycling
Electronics in oil and gas applications experience wide operating temperature ranges. Processing and refinery environments expose assemblies to sustained high temperatures. Offshore and arctic applications demand reliable performance at low temperatures and through repeated thermal cycling. Solder joints and component terminations that pass standard acceptance criteria can fail under sustained thermal stress if the assembly process or material selection is wrong.
Nitronica assembles PCBs to IPC 610 Class 3, the highest workmanship standard published by IPC, the global electronics assembly standards body. Class 3 applies to high-performance electronics where continued performance is critical, and downtime is unacceptable. It covers solder joint geometry, component placement, lead dress, and inspection criteria that exceed the Class 2 standard used for most commercial electronics.
Vibration and Mechanical Shock
Rotating machinery, pumps, compressors, and vehicle-mounted monitoring equipment generate vibration that transfers directly into the electronics. Assemblies that are not properly secured, or where solder joints do not meet Class 3 criteria, develop failures over time that appear intermittent before becoming permanent. Cable assemblies are particularly vulnerable: poor crimping, inadequate strain relief, and undersized conductors all contribute to field failures that trace back to the assembly stage.
IPC 620, which governs cable and wire harness assembly workmanship, applies the same rigour to cable assemblies that IPC 610 applies to PCBs. We build cable assemblies and wiring harnesses to IPC 620, with 100% continuity testing and hi-pot testing on assemblies where the specification requires it.
Moisture, Humidity, and Corrosive Atmospheres
Offshore environments combine salt-laden air, humidity, and temperature variation in ways that accelerate corrosion. Conformal coating, potting compounds, and sealed connectors are the primary defences, but they only work if applied correctly and to the right specification. Conformal coating applied with gaps or at incorrect thickness does not provide the protection it appears to. Potted assemblies where the compound has not fully cured or has delaminated provide no meaningful ingress protection.
We apply conformal coatings and potting compounds to customer specifications and inspect finished assemblies against the applicable acceptance criteria. Where clients require specific coating materials or application methods, we work to their process documentation.
Services for Oil & Gas Equipment Manufacturers
We provide contract electronics manufacturing services to product companies and OEMs that design and manufacture equipment for the oil and gas sector. Our role is to manufacture what you have designed, to the standard your application requires, with the documentation and traceability that regulated sectors demand.
PCB Assembly for Oil & Gas Applications
Our PCB assembly capability covers surface mount technology (SMT), through-hole (PTH), mixed-technology, BGA and micro-BGA, wave solder, and selective solder processes. We run inline automated optical inspection (AOI) on SMT assemblies and flying probe testing on new products. For oil and gas applications where Class 3 workmanship is specified, we apply the full IPC 610 Class 3 acceptance criteria throughout the process, not just at final inspection.
For low-volume and new product introduction (NPI) builds, we support product companies from first article through to production. For high-mix, lower-volume customers typical in specialist oil and gas equipment, we maintain the flexibility to schedule and build efficiently without the overhead of high-volume production planning.
Cable Assembly and Wiring Harnesses
Cable assemblies and wiring harnesses built for oil and gas applications must perform reliably across a range of connector types, cable specifications, and installation conditions. We manufacture cable assemblies across the full range of complexity, from simple two-core assemblies through to multi-way harnesses with branched looming, overmoulding, and specialist connectors. Fibre optic cable assembly is available for applications where EMI immunity or data integrity is the primary requirement.
All cable assemblies receive 100% continuity testing. Where applications require it, we carry out hi-pot dielectric testing to verify insulation integrity. For assemblies destined for potentially explosive atmospheres, we manufacture to customer specification and work alongside your engineering team to confirm the assembly meets the applicable documentation requirements for ATEX or IECEx compliance. Certification of the complete system remains with the product owner.
Electro-Mechanical Assembly and Box Build
Many oil and gas monitoring, control, and safety systems combine electronics with mechanical components, enclosures, mounting hardware, and cabling into assemblies that must arrive on site ready to install. We build electro-mechanical assemblies and box builds across the full range of complexity, from PCB-in-enclosure builds with a small number of connections through to large, engineering-intensive assemblies with multiple sub-systems.
Our dynamic test team develops functional test solutions at both sub-assembly and full assembly levels, working with your engineering team on first articles and NPI builds. For production, we carry out customer-specific functional tests to agreed specifications and record results as part of the build documentation.
Cabinet Integration and Panel Building
Control cabinets, motor control centres, and panel-mounted instrumentation for processing facilities require a different skill set from standard electronics assembly. Our cabinet integration and panel building capability covers custom cabling, power installation and configuration, PLC integration, heat management, alarm systems, and sub-rack manufacture and installation. We carry out point-to-point testing and customer-specific functional testing on completed cabinets before dispatch.
Ready to discuss your oil & gas build requirements? Call +44 (0)28 9756 6200 or email [email protected]
Quality Standards and Traceability
Product companies supplying to the oil and gas sector face procurement requirements that include quality management system certification, workmanship standards, and build traceability. Nitronica holds ISO 9001 certification for quality management and ISO 14001 certification for environmental management. Our assembly processes for PCBs operate to IPC 610 Class 2 or 3 and cable assembly processes to IPC 620.
Traceability at the component and assembly levels matters in oil and gas because field failures require root cause analysis. We maintain build records that allow traceability back to the component batch and supplier where the specification requires it. For clients with their own quality management requirements, we work to customer-supplied quality plans and accept customer audits as part of our standard operating approach.
Quality and Standards at a Glance
- ISO 9001: Quality Management Systems
- ISO 14001: Environmental Management Systems
- IPC 610 Class 2 or 3: PCB Assembly Workmanship
- IPC 620: Cable and Wire Harness Assembly Workmanship
- 100% continuity testing on cable assemblies
- Hi-pot dielectric testing available where specified
- Inline AOI and flying probe on PCB assemblies
- Customer-specific functional test development
- Full build documentation and component traceability
Northern Ireland: Dual-Market Access for Oil & Gas Supply Chains
Manufacturing in Northern Ireland gives Nitronica, and the product companies we work with, access to both the UK market and the EU single market under the Windsor Framework. For oil and gas equipment manufacturers supplying projects across the UK, the Republic of Ireland, and Europe, this dual-market position removes the additional complexity that comes with using a purely GB-based or purely EU-based manufacturer.
Our Ballynahinch facility sits in Co. Down, with straightforward logistics connections to Belfast, Dublin, and the wider UK. Lead times and shipping costs reflect a UK and Ireland supply chain, not an offshore alternative.
Frequently Asked Questions
Do you manufacture PCBs and cable assemblies for ATEX-rated equipment?
We manufacture PCB assemblies, cable assemblies, and electro-mechanical builds to customer specifications for equipment intended for use in potentially explosive atmospheres. Assembly to the correct workmanship standard (IPC 610 Class 2 or 3 for PCBs, IPC 620 for cable assemblies) is the manufacturer’s contribution to a compliant product. ATEX or IECEx certification of the complete system remains the responsibility of the product designer and certifying body. We work alongside your engineering team to confirm assemblies meet your build documentation requirements.
What PCB assembly standard applies to oil & gas applications?
IPC 610 Class 3 is the applicable workmanship standard for electronic assemblies used in high-reliability applications, including oil and gas. Class 3 sets tighter acceptance criteria than Class 2 for solder joint geometry, component placement, and surface condition. Nitronica can assemble to IPC 610 Class 3 and carries out inline AOI. Where clients specify additional test requirements (functional test, environmental stress screening), we develop test solutions to the agreed specification.
Can you handle low-volume builds for specialist oil & gas equipment?
Yes. A significant part of our work involves high-mix, lower-volume builds for specialist equipment manufacturers. We accommodate call-off orders, scheduled builds, and one-time batches. For NPI builds and first articles, we support product companies from initial prototypes through to production, maintaining build records and component traceability throughout.
What cable assembly testing do you carry out for oil & gas applications?
All cable assemblies receive 100% continuity testing. Hi-pot (high potential) dielectric testing is available for assemblies where insulation integrity testing is specified. For harnesses with multiple branches or complex routing, we carry out point-to-point testing against the assembly drawing. Where clients require specific test records as part of their quality documentation, we produce and retain test results in the agreed format.
Working with Nitronica on Oil & Gas Projects
The most effective starting point is a conversation about your specific application and build requirements. We work best with product companies and OEMs that can share design documentation, component lists, and quality specifications; this allows us to assess the build accurately and provide a realistic quote based on your actual requirements rather than broad assumptions.
For NPI projects, early engagement lets us identify any design for manufacture (DFM) considerations before the design is finalised. Small changes at design stage – pad geometry, component orientation, connector selection, cable routing – can significantly reduce assembly time, improve test coverage, and reduce the risk of field failures.
- 4 Antrim Road, Ballynahinch, Co. Down, BT24 8AN
- +44 (0) 28 9756 6200
- [email protected]
- Monday–Thursday: 7:00 AM – 5:00 PM
