---
title: "Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail's Class 158 Diesel Multiple Units (DMUs)"
ocid: "ocds-h6vhtk-04ee21"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04ee21"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04ee21.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04ee21.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "SCOTRAIL TRAINS LIMITED ."
published: "2025-03-17"
---

# Design, certification, supply and installation of Single Variable Rate Sanding (SVRS) to ScotRail's Class 158 Diesel Multiple Units (DMUs)

Buyer: SCOTRAIL TRAINS LIMITED .  
Current stage: Award  
OCID: ocds-h6vhtk-04ee21

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04ee21)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-04ee21.json)

## Summary

ScotRail Trains Limited is seeking a turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for their Class 158 Diesel Multiple Units (DMUs). This procurement process falls under the 'Railway and tramway locomotives and rolling stock and associated parts' industry category and will take place at ScotRail engineering depots in Inverness and Haymarket, UK. The procurement stage is complete, with the award tagged and dated on 17 March 2025. ScotRail plans to commence fitment of the SVRS in Autumn 2025. The procurement method used was a negotiated procedure without publication of a contract notice, specifically contracting with Siemens Mobility Limited due to technical reasons. Key dates include the contract signing on 12 February 2025.

This tender presents significant opportunities for businesses involved in railway services and rolling stock manufacturing. Companies with expertise in developing and installing advanced braking systems for locomotives can benefit by partnering with pragmatic operators like Siemens Mobility Limited, who have demonstrated industry performance in low-adhesion braking improvement. While the procurement process itself is closed, similar future contracts could provide opportunities for innovation and market expansion for firms with technical prowess in railway engineering and components. This makes it advantageous for established suppliers and those looking to expand their footprint in railway infrastructure projects.

## Notice

Turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for ScotRail's Class 158 Diesel Multiple Units (DMUs). ScotRail requires an SVRS system that has previously received technical approval (i.e., ROSCO approval and full certification through the engineering change process). The SVRS systems must be capable of providing proven improvements in braking performance under low-adhesion conditions for the Class 158 DMU fleet. This must be evidenced by industry performance data demonstrating these improvements specifically for the Class 158 DMUs. ScotRail aims to commence fitment in Autumn 2025 to benefit from the system's benefits as soon as possible. ScotRail intends to use the negotiated procedure without prior call for competition to contract with Siemens Mobility Limited. This approach is considered the only viable option, as Siemens Mobility is the only supplier who can provide a technically proven solution with demonstrated performance benefits on an in-service fleet and the capability to meet the challenging project timeline.

### Lot Information

Lot 1

Turnkey solution for the design, certification, supply, and installation of Single Variable Rate Sanding (SVRS) for ScotRail's Class 158 Diesel Multiple Units (DMUs). ScotRail requires an SVRS system that has previously received technical approval (i.e., ROSCO approval and full certification through the engineering change process). The SVRS systems must be capable of providing proven improvements in braking performance under low-adhesion conditions for the Class 158 DMU fleet. This must be evidenced by industry performance data demonstrating these improvements specifically for the Class 158 DMUs. ScotRail aims to commence fitment in Autumn 2025 to benefit from the system's benefits as soon as possible. ScotRail intends to use the negotiated procedure without prior call for competition to contract with Siemens Mobility Limited. This approach is considered the only viable option, as Siemens Mobility is the only supplier who can provide a technically proven solution with demonstrated performance benefits on an in-service fleet and the capability to meet the challenging project timeline.

### Procurement Information

not applicable

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/009758-2025 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Limited |
| Procurement method details | Negotiated without publication of a contract notice |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Mar 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 12 Feb 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SCOTRAIL TRAINS LIMITED . |
| Locality | GLASGOW |
| Post town | Glasgow |
| Postcode | G2 6HQ |
| Country | Scotland |
| ITL 1 | TLM Scotland |
| ITL 2 | TLM3 West Central Scotland |
| ITL 3 | TLM32 Glasgow City |
| Local authority | Glasgow City |
| Electoral ward | Anderston/City/Yorkhill |
| Westminster constituency | Glasgow North |
| Delivery location | TLM Scotland |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SIEMENS MOBILITY |

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation

### Codes

- 34600000 - Railway and tramway locomotives and rolling stock and associated parts
- 34631400 - Wheel axles and tyres and other parts of locomotives or rolling stock

## Release History

- 17 Mar 2025 at 17:07 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/009758-2025

## Notice URLs

- https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000789948
- https://www.publiccontractsscotland.gov.uk/search/Search_AuthProfile.aspx?ID=AA30589
- https://www.scotrail.co.uk/

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04ee21. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04ee21.json.