{ "uri": "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-0688c6", "publisher": { "name": "Cabinet Office", "scheme": "GB-GOR", "uid": "D2", "uri": "https://www.gov.uk/government/organisations/cabinet-office" }, "publishedDate": "2026-04-22T15:13:22+01:00", "license": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "publicationPolicy": "https://www.gov.uk/government/publications/open-contracting", "version": "1.1", "extensions": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ], "packages": [ "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-0688c6" ], "records": [ { "ocid": "ocds-h6vhtk-0688c6", "releases": [ { "ocid": "ocds-h6vhtk-0688c6", "id": "036700-2026", "tag": [ "planning" ], "date": "2026-04-22T15:13:21+01:00", "initiationType": "tender", "parties": [ { "name": "Transport for London", "id": "GB-PPON-PHMT-6197-NWNZ", "identifier": { "scheme": "GB-PPON", "id": "PHMT-6197-NWNZ" }, "address": { "streetAddress": "5 Endeavour Square", "locality": "London", "postalCode": "E20 1JN", "country": "GB", "countryName": "United Kingdom", "region": "UKI41" }, "contactPoint": { "email": "BSFAribaAdministration@tfl.gov.uk" }, "roles": [ "buyer" ], "details": { "classifications": [ { "scheme": "UK_CA_TYPE", "id": "publicAuthorityCentralGovernment", "description": "Public authority - central government" } ] } } ], "buyer": { "id": "GB-PPON-PHMT-6197-NWNZ", "name": "Transport for London" }, "planning": { "milestones": [ { "id": "engagement", "type": "engagement", "description": "Suppliers wishing to participate in this preliminary market engagement should register their interest by contacting:\nSam Ward\nCommercial Manager\nEmail: samward1@tfl.gov.uk\nSuppliers expressing an interest in participating will be required to complete and submit an Early Market Engagement Market Sounding Questionnaire (MSQ). The MSQ will be used to gather non‑binding information to support TfL's understanding of the market, supplier capability, technical solutions, delivery approaches and whole‑life considerations relating to Tube Gauge tamping machines.\nParticipation is open to organisations with the relevant technical capability and experience to design, manufacture and support specialist on‑track railway maintenance plant, including tamping machines suitable for operation within constrained gauge, tunnel and mixed‑infrastructure environments.\nResponses submitted as part of the MSQ will not form part of any subsequent tender or procurement process, and participation in this market engagement does not constitute a commitment by TfL to proceed with a future procurement. All information provided will be treated in confidence and used solely to inform TfL's future procurement strategy. 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To maintain safe track alignment, avoid Temporary Speed Restrictions (TSRs), and ensure long-term operational resilience, LU is exploring options for the replacement of the Tube Gauge Tampers. \nThis Preliminary Market engagement aims to understand supplier appetite and technical capabilities, innovation and commercial considerations relating to the manufacture, supply, and long-term support of a new set of Tube Gauge Tampers. Feedback will help shape LU's procurement strategy, technical specification, delivery mode, and programme.\nThe scope of this preliminary market engagement covers the potential procurement of new set of Tube Gauge Tampers capable of operating across the LU network, including deep tube tunnels, depots and subsurface interfaces. The indicative scope include:\n•\tFunctional and operational requirements \n•\tEnvironmental Performance \n•\tSignalling System integration\n•\tOperational & Functional Requirements \n•\tMaintenance, Support and Lifecycle Considerations \n Functional and operational requirements:\n•\tOperating within a modified LG1 kinematic gauge profile. This is a particularly challenging gauge profile that will enable the tamper to go anywhere on the LU network.\n•\t1,435 mm gauge track to ensure interoperability of LU assets on mainline infrastructure.\n•\tNavigating minimum horizontal curve radius of 64 m (with some curves down to 46 m in depots).\n•\tOperating on maximum gradients of 3.4%.\n•\tAchieving a maximum speed of 60 mph (self-propelled or hauled).\n•\tUtilise LU's two-line brake system and electronic brake control system along with DropHead Buckeye coupler to ensure compatibility for locomotive haulage. The current operational philosophy assumes the tamper will be loco hauled in Running Mode.\n•\tDelivering tamping functionality for plain line and points & crossings. Inclusive of conductor rails and checkrails.\n•\tTampers that meet the fire requirements for operating in a tunnel environment. Consideration will need to be made to exit the tamper longitudinally in the event of a fire.\nEnvironmental Performance \nIn line with LU's carbon reduction drive, consideration should be placed on Tube Gauge Tampers that are: \n•\tHybrid, battery, or alternative low-emission propulsion. \n•\tEuro V or better diesel engines (if diesel is proposed).\n•\tReduced carbon footprint across design, manufacture, and transport.\nSignalling System Integration\n The current operational philosophy assumes that the tampers will be loco hauled in Running Mode which reduces the number of signalling systems required to be fitted to the tamper. 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LU anticipates procuring at least one tamper, with the \toption to procure additional units depending on budget, operational need, and value for \tmoney. 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To maintain safe track alignment, avoid Temporary Speed Restrictions (TSRs), and ensure long-term operational resilience, LU is exploring options for the replacement of the Tube Gauge Tampers. \nThis Preliminary Market engagement aims to understand supplier appetite and technical capabilities, innovation and commercial considerations relating to the manufacture, supply, and long-term support of a new set of Tube Gauge Tampers. Feedback will help shape LU's procurement strategy, technical specification, delivery mode, and programme.\nThe scope of this preliminary market engagement covers the potential procurement of new set of Tube Gauge Tampers capable of operating across the LU network, including deep tube tunnels, depots and subsurface interfaces. The indicative scope include:\n•\tFunctional and operational requirements \n•\tEnvironmental Performance \n•\tSignalling System integration\n•\tOperational & Functional Requirements \n•\tMaintenance, Support and Lifecycle Considerations \n Functional and operational requirements:\n•\tOperating within a modified LG1 kinematic gauge profile. This is a particularly challenging gauge profile that will enable the tamper to go anywhere on the LU network.\n•\t1,435 mm gauge track to ensure interoperability of LU assets on mainline infrastructure.\n•\tNavigating minimum horizontal curve radius of 64 m (with some curves down to 46 m in depots).\n•\tOperating on maximum gradients of 3.4%.\n•\tAchieving a maximum speed of 60 mph (self-propelled or hauled).\n•\tUtilise LU's two-line brake system and electronic brake control system along with DropHead Buckeye coupler to ensure compatibility for locomotive haulage. The current operational philosophy assumes the tamper will be loco hauled in Running Mode.\n•\tDelivering tamping functionality for plain line and points & crossings. Inclusive of conductor rails and checkrails.\n•\tTampers that meet the fire requirements for operating in a tunnel environment. Consideration will need to be made to exit the tamper longitudinally in the event of a fire.\nEnvironmental Performance \nIn line with LU's carbon reduction drive, consideration should be placed on Tube Gauge Tampers that are: \n•\tHybrid, battery, or alternative low-emission propulsion. \n•\tEuro V or better diesel engines (if diesel is proposed).\n•\tReduced carbon footprint across design, manufacture, and transport.\nSignalling System Integration\n The current operational philosophy assumes that the tampers will be loco hauled in Running Mode which reduces the number of signalling systems required to be fitted to the tamper. At this stage the suppliers should consider spatial and technical constraints for integrating a Tripcock signalling system which interfaces with the braking system. \nOperational & Functional Requirements\nThe new tampers should:\n•\tSupport rapid set up and stow to maximise productivity during engineering hours.\n•\tProvide emergency recovery capability allowing safe towing in the event of power \t \tfailure.\n•\tAchieve a 25-year service life.\n•\tBe compatible with LU battery locomotive haulage.\nMaintenance, Support and Lifecycle Considerations\nSuppliers are invited to provide:\n•\tMaintenance plans and man hour estimates.\n•\tExpected overhaul cycles.\n•\tAvailability of long- term parts support.\n•\tOpportunities for modularisation, remote diagnostics, or reliability improvements.\nCommercial, Programme and Market Information\nTfL seeks indicative (non- binding) information on:\n•\tGuide pricing for the tampers. 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To maintain safe track alignment, avoid Temporary Speed Restrictions (TSRs), and ensure long-term operational resilience, LU is exploring options for the replacement of the Tube Gauge Tampers. \nThis Preliminary Market engagement aims to understand supplier appetite and technical capabilities, innovation and commercial considerations relating to the manufacture, supply, and long-term support of a new set of Tube Gauge Tampers. Feedback will help shape LU's procurement strategy, technical specification, delivery mode, and programme.\nThe scope of this preliminary market engagement covers the potential procurement of new set of Tube Gauge Tampers capable of operating across the LU network, including deep tube tunnels, depots and subsurface interfaces. The indicative scope include:\n•\tFunctional and operational requirements \n•\tEnvironmental Performance \n•\tSignalling System integration\n•\tOperational & Functional Requirements \n•\tMaintenance, Support and Lifecycle Considerations \n Functional and operational requirements:\n•\tOperating within a modified LG1 kinematic gauge profile. This is a particularly challenging gauge profile that will enable the tamper to go anywhere on the LU network.\n•\t1,435 mm gauge track to ensure interoperability of LU assets on mainline infrastructure.\n•\tNavigating minimum horizontal curve radius of 64 m (with some curves down to 46 m in depots).\n•\tOperating on maximum gradients of 3.4%.\n•\tAchieving a maximum speed of 60 mph (self-propelled or hauled).\n•\tUtilise LU's two-line brake system and electronic brake control system along with DropHead Buckeye coupler to ensure compatibility for locomotive haulage. The current operational philosophy assumes the tamper will be loco hauled in Running Mode.\n•\tDelivering tamping functionality for plain line and points & crossings. Inclusive of conductor rails and checkrails.\n•\tTampers that meet the fire requirements for operating in a tunnel environment. Consideration will need to be made to exit the tamper longitudinally in the event of a fire.\nEnvironmental Performance \nIn line with LU's carbon reduction drive, consideration should be placed on Tube Gauge Tampers that are: \n•\tHybrid, battery, or alternative low-emission propulsion. \n•\tEuro V or better diesel engines (if diesel is proposed).\n•\tReduced carbon footprint across design, manufacture, and transport.\nSignalling System Integration\n The current operational philosophy assumes that the tampers will be loco hauled in Running Mode which reduces the number of signalling systems required to be fitted to the tamper. At this stage the suppliers should consider spatial and technical constraints for integrating a Tripcock signalling system which interfaces with the braking system. \nOperational & Functional Requirements\nThe new tampers should:\n•\tSupport rapid set up and stow to maximise productivity during engineering hours.\n•\tProvide emergency recovery capability allowing safe towing in the event of power \t \tfailure.\n•\tAchieve a 25-year service life.\n•\tBe compatible with LU battery locomotive haulage.\nMaintenance, Support and Lifecycle Considerations\nSuppliers are invited to provide:\n•\tMaintenance plans and man hour estimates.\n•\tExpected overhaul cycles.\n•\tAvailability of long- term parts support.\n•\tOpportunities for modularisation, remote diagnostics, or reliability improvements.\nCommercial, Programme and Market Information\nTfL seeks indicative (non- binding) information on:\n•\tGuide pricing for the tampers. LU anticipates procuring at least one tamper, with the \toption to procure additional units depending on budget, operational need, and value for \tmoney. Suppliers are encouraged to indicate how pricing may scale for the supply of 1, \t2, or 3 units.\n•\tProduction lead times, Design development durations and delivery programmes.\n•\tKey risks, opportunities, and market constraints.\n•\tSupplier appetite to participate in a future tender." } ], "items": [ { "id": "1", "additionalClassifications": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": [ { "scheme": "CPV", "id": "34600000", "description": "Railway and tramway locomotives and rolling stock and associated parts" } ] } ], "deliveryAddresses": [ { "region": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "UKI" } ], "country": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "GB" } ], "countryName": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "United Kingdom" } ] } ], "relatedLot": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "1" } ] } ], "mainProcurementCategory": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "goods" } ], "specialRegime": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": [ "utilities" ] } ], "aboveThreshold": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": true } ], "lots": [ { "id": "1", "contractPeriod": { "startDate": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "2028-03-01T00:00:00Z" } ], "endDate": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "2035-08-01T23:59:59+01:00" } ], "maxExtentDate": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "2038-08-01T23:59:59Z" } ] }, "hasRenewal": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": true } ], "status": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "planning" } ] } ], "status": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "planning" } ] }, "language": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": "en" } ], "extensions": [ { "releaseID": "036700-2026", "releaseDate": "2026-04-22T15:13:21+01:00", "releaseTag": [ "planning" ], "value": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ] } ] } } ] }