Published - 25th Mar 2026

Equipment that operates under vacuum, pressure or tightly controlled environments places exceptional demands on the vessels and chambers that contain it. Dimensional accuracy, weld integrity and material performance all play a direct role in whether that equipment operates reliably.
Tiverton Fabrications specialises in the manufacture of precision vessels, vacuum chambers and complex fabricated assemblies used in advanced scientific and industrial equipment, where fabrication quality directly affects system performance and reliability.
The company forms part of Expromet Technologies Group, a UK-based engineering group that brings together specialist manufacturing companies across casting, machining and fabrication. This structure enables organisations developing complex equipment to access multiple complementary engineering capabilities within a coordinated manufacturing group, simplifying the supply chain for complex components and assemblies.
Working with organisations across sectors including scientific research, advanced manufacturing, energy systems and medical technology, Tiverton Fabrications supports projects where precision fabrication and engineering collaboration are essential.
Specialism
Precision fabrication of vessels, vacuum chambers and complex engineered assemblies.
Core capabilities
Typical materials
Applications
Part of
Expromet Technologies Group, combining casting, machining and fabrication expertise across multiple specialist engineering companies.
The vessels and fabricated assemblies produced by Tiverton Fabrications are typically used within complex equipment across scientific, medical, energy and specialist industrial equipment.
| Capability | Description |
|---|---|
| Precision vessel fabrication | Manufacture of fabricated vessels used in equipment requiring structural integrity and dimensional accuracy |
| Vacuum chamber fabrication | Fabrication of chambers designed to operate in controlled or vacuum environments |
| Complex fabricated assemblies | Production of multi-part fabricated structures integrated into specialist equipment |
| Prototype and development builds | Support for early-stage equipment development and low-volume fabrication projects |
| Repeat production fabrication | Consistent manufacture of fabricated components for OEM equipment and systems |
The fabrication of specialised vessels and chambers for advanced applications requires a disciplined engineering approach, as fabrication quality and consistency play an important role in ensuring the reliability of the finished equipment.
Projects often involve complex geometries, tight dimensional tolerances and demanding operating conditions. Achieving reliable results depends on in-depth understanding of the technical fabrication processes involved, alongside careful fabrication planning, controlled welding processes and thorough inspection.
With over 40 years’ experience, Tiverton Fabrications is a trusted specialist manufacturer of performance-critical products including:
Tiverton Fabrications works with a range of engineering materials selected according to the requirements of each project. These commonly include stainless steels and aluminium alloys, alongside exotic or specialist materials with a high nickel base such as Hastelloy and Inconel, or Titanium, according to performance demands.
Tiverton’s specialist fabrication process combines precision techniques with coded welding and defined inspection procedures. Depending on project requirements, verification may include dimensional inspection, pressure testing or leak testing to confirm compliance with specification. As a specialist UK manufacturing business, Tiverton Fabrications is also ISO 9001 certified and holds BS EN ISO 3834-2:2021 certification in the Quality Requirements for the Fusion Welding of Metallic Materials.
Engineers developing new equipment often require fabrication specialists who can translate design concepts into practical, manufacturable components. Tiverton Fabrications and its sister companies within Expromet Technologies Group can work closely with customers to ensure designs can be fabricated efficiently while maintaining the performance required by the final application.
This collaboration may involve:
• Design for manufacture
• Material selection
• Fabrication methodology
• Welding strategy
• Inspection and testing requirements
Some projects remain one-off or bespoke builds, particularly in scientific or research environments. Others develop into repeat production work supporting OEM systems that require consistent quality across multiple fabricated units. In both cases, close collaboration helps ensure finished components integrate smoothly into the wider equipment assembly.
Tiverton Fabrications is the specialist fabrication company within Expromet Technologies Group, focusing on precision vessels, vacuum chambers and complex fabricated assemblies used in advanced equipment.
Within the wider group, each company provides a distinct manufacturing capability:
• Haworth Castings — complex sand and gravity die castings
• Investacast — precision investment and pressure die castings
• Metaltech Precision — high-precision CNC machining
• Tiverton Fabrications — specialist vessel and chamber fabrication.
Together these companies provide customers with access to multiple advanced manufacturing disciplines within a single engineering group, complemented by a developed and trusted overseas sourcing network. For organisations developing performance-critical equipment, this structure can simplify supply chains, minimise risk and support closer collaboration across casting, machining and fabrication processes during product development and production.
Rob Guest, CEO of Expromet Technologies Group, confirms that the goal is to make it easier for customers to source complex, high-quality components and assemblies:
“As a group of complementary advanced precision casting and machining businesses, we deliver a broad range of manufacturing processes under one roof, supported by global sourcing partnerships. This provides resilience and efficiency to customers requiring performance critical components across demanding supply chains.”
Tiverton Fabrications specialises in the manufacture of precision vessels, vacuum chambers and complex fabricated assemblies used in advanced scientific and industrial equipment. These components are often critical structural elements within systems that operate under vacuum, pressure or tightly controlled environments.
Precision vessels and chambers are used across a range of advanced industries, including scientific research, advanced manufacturing, medical and imaging technology and energy systems. In these sectors, fabrication quality and dimensional accuracy play an important role in ensuring equipment performance and reliability.
Tiverton Fabrications is part of Expromet Technologies Group, which brings together specialist manufacturing companies offering fully integrated casting, machining, welding, fabrication and assembly across its sites. This structure allows organisations developing complex equipment to access multiple engineering capabilities within a coordinated manufacturing network.
If you are developing equipment that requires precision vessels, vacuum chambers or complex fabricated assemblies, the team at Tiverton Fabrications can support projects from early-stage development through to repeat production.
As part of Expromet Technologies Group, customers can also access complementary capabilities in casting, machining and integrated manufacturing, helping simplify the supply chain for complex engineered components.
Contact the team to discuss your project requirements.