Published - 14th Mar 2026
In fabrication for cryogenic and specialist vessels, chambers, tubes and cylinders, production control safeguards accuracy, traceability and compliance from material receipt to final dispatch. At Tiverton Fabrications, that responsibility rests under single-point leadership shaped by 20 years of hands-on experience across machining, inspection and commercial roles.
In a precision manufacturing environment serving customers across a range of technical industries, production control typically involves:
At Tiverton Fabrications, production management is informed by direct experience of each stage of the process. With this effective production control, our customers benefit from on-time delivery of components that meet specification, supported by full certification and traceability.
Stewart White is Production Manager at Tiverton Fabrications, bringing significant depth of experience to the role. After an apprenticeship in machining and experience with other fabricators, Stewart joined Tiverton’s machining shop 20 years ago to programme and operate equipment such as CNC waterjet cutting systems.
This learning and experience in machining developed Stewart’s practical understanding of tolerances, how materials respond during processing and how small deviations can influence assembly performance, building a strong foundation for his future roles in the company.
Stewart subsequently moved into Quality Assurance, including ‘Goods In’ and final inspection – checking completed vessels and assemblies against drawings, confirming dimensional markups and ensuring that critical tests are carried out.
Quality assurance is key to every sector. Tiverton Fabrications is a leading ISO 9001:2015 manufacturer and fabricator of customised leak tested pressure vessels, vacuum chambers, precision tubes, specialist instruments and cylinders up to 8 tonnes in weight. The company holds certifications including BS EN ISO 3834-2:2021 (for the fusion welding of metallic materials) and TUV AD 2000 (German regulatory framework for pressure equipment). With dedicated TIG and MIG welding, orbital welding, specialist fabrication, machining, polishing and value-added services, Tiverton Fabrications has over 40 years’ experience in delivering high quality components to demanding sectors.
Many of Tiverton Fabrications’ customers work in performance-critical areas such as Magnetic Resonance Imaging (MRI) and Nuclear Magnetic Resonance (NMR) spectography; the cryogenic industry; and Liquefied Natural Gas (LNG) transfers. Containment integrity is often essential, so leak testing is a vital part of Tiverton Fabrications’ Quality Assurance programme, which includes a dedicated Helium leak testing facility.
Stewart’s experience and strong understanding of quality control in specialist vessel manufacturing ensures that, as Tiverton Fabrications’ Production Manager, he is well placed to deliver dependable, high-quality production.
Stewart subsequently moved into a sales and quoting role, working directly with customers to interpret technical requirements and prepare costed proposals. Key responsibilities included using CRM systems, collaborating with sales teams, maintaining client relationships, and offering technical advice or product solutions.
Tiverton Fabrications’ customers require both bespoke fabrication and repeat production: for example, a regular customer in the MRI sector requires approximately 10–12 units per month, demanding consistent dimensional control and repeatable processes. Alongside this, many projects are one-off assemblies supporting medical and scientific research.
From its manufacturing base in Devon, South West England, Tiverton Fabrications regularly delivers precision vessels to UK customers in Oxford and Bristol, and internationally to countries such as France, Switzerland and Japan.
An understanding of customer needs across these different sectors and locations gives Tiverton’s Production Manager a strong position from which to ensure clarity in documentation, and confidence in first-time-right fabrication.
As Production Manager for Tiverton Fabrications, Stewart is the operational lead safeguarding performance-critical fabrication, responsible for production across the business including quality, compliance and delivery.
Having worked across machining, inspection and commercial functions, Stewart’s production decisions are informed by a direct understanding of each stage. With responsibility for production rooted in direct experience across machining and inspection, Stewart ensure that Tiverton Fabrications maintains clear control and accountability from raw materials right through to completed vessels.
Production control in specialist vessel fabrication depends on structured oversight and clear accountability.
If you are developing cryogenic, MRI-related or specialist vessel assemblies, our team can review your requirements and advise on production planning.
Discuss your fabrication requirements with our team.
1. What is production control in specialist vessel fabrication?
Production control is the oversight of materials, processes, inspection and scheduling from receipt through to final dispatch.
2. Why is production control important for cryogenic vessels?
It helps ensure accuracy, traceability, compliance and containment integrity in demanding applications.
3. What does production control usually include?
It usually includes scheduling, drawing control, material traceability, inspection, dimensional checks and testing.
4. How does production control support quality assurance?
It helps make sure each stage is checked, recorded and completed to the required specification.
5. Why is traceability important in vessel fabrication?
Traceability links materials, processes and inspections to the finished component for quality and compliance purposes.
6. Why is leak testing important for specialist vessels?
Leak testing confirms containment integrity in vessels and assemblies used in performance-critical environments.