Scope
Reference
DLSITT1075
Description
Located on the Harwell Science and Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. Diamond allows researchers from academia and industry to investigate the structure and behaviour of the world around us at the atomic and molecular level.
To continue delivering the world-changing science that Diamond enables, the facility is being upgraded to Diamond-II, a co-ordinated programme of development that combines a major machine upgrade with new instruments and complementary improvements to optics,detectors, sample environment and delivery capabilities, and computing, as well as integrated and correlative methods. This will be transformative in speed and spatial resolution and will offer users streamlined access to enhanced instruments for life and physical sciences.
The scope of the contract is to manufacture 103 supports structure assemblies which support the primary electron beam position monitor (PEBPM) bellows assemblies (not in scope of this specification); the stand is shown in the image below. The support comprises of 4 low thermal expansion coefficient iron nickel alloy (Invar 36/1.3912) rods welded to a baseplate of the same material; the rods are braced by stainless steel plates clamped to all 4 rods at intervals along the rod's length. The top of the rods provides an interface and mechanism for adjustment of the PEBPM position in all 6 degrees of freedom.
The supplier shall deliver four pre-series supports to DLS for approval prior to welding of the remaining 99 stands, it is acceptable to produce all subcomponents prior to this.
The contract includes:
• Contract management
• Purchase of all materials.
• CTE Test piece.
• Manufacture of 103 Support assemblies.
• All jigs and tooling required for manufacture.
• Cleaning (see section 3.4).
• Quality assurance documentation
• Packing
• Delivery
Total value (estimated)
- £500,000 excluding VAT
- £600,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 16 December 2025 to 18 December 2026
- 1 year, 3 days
Main procurement category
Goods
CPV classifications
- 44400000 - Miscellaneous fabricated products and related items
Contract locations
- UKJ14 - Oxfordshire
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Tender submission deadline
24 November 2025, 12:00pm
Submission address and any special instructions
Please email tender submission to:
https://diamondtenders@diamond.ac.uk
and send a hard copy to:
Diamond Procurement
Diamond House
Diamond Light Source Ltd
Harwell Science & Innovation Campus
Didcot
Oxon
OX11 0DE
United Kingdom
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
3 December 2025
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Price | Price | 40% |
| Technical Quality | Quality | 22.5% |
| Experience and Capacity | Quality | 22.5% |
| Delivery | Quality | 10% |
| Commercial | Quality | 5% |
Other information
Applicable trade agreements
- Government Procurement Agreement (GPA)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Documents
Technical specifications to be met
https://tenders.diamond.ac.uk
Visit our webpage:
Here Suppliers are required to complete a one-off simple registration form. You are then able to login to register an interest against the tender and download the Tender Documents.
Contracting authority
DIAMOND LIGHT SOURCE LIMITED
- Companies House: 04375679
- Public Procurement Organisation Number: PNGG-3778-PWBM
Diamond House
Didcot
OX11 0DE
United Kingdom
Email: procurement@diamond.ac.uk
Region: UKJ14 - Oxfordshire
Organisation type: Public authority - central government