Source: https://tendernation.io/opportunities/01a13bdb-cd3a-730c-b036-b4d1bfd3bf2c/provision-of-rail-mounted-maintenance-machines-rmmstramms-rail-mounted-cran pending GB open procedure # Provision of Rail Mounted Maintenance Machines (RMMs/TRAMMs) & Rail Mounted Cranes for - Southern Region [Network Rail Infrastructure Limited](https://tendernation.io/buyers/network-rail-infrastructure-limited) Estimated value £12,000,000 Published 20 Apr 2026 Deadline Rolling deadline ## Who can bid - Sets up a framework Winning a place does not guarantee work: contracts are awarded later as call-offs, and the list usually stays closed for years. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender Please note that this is a market engagement exercise to assist us in gaining insight into the supply and operation of RMMM within the UK market ### Machine Definitions RMMs are classified as: - large - 5.5 tonne gross laden weight and above. - medium - less than 5.5 tonne gross laden weight and greater than 1 tonne. - small - 1 tonne gross laden weight and less. The classification of RMMMs into three bands is concerned mainly with their ability to assist each other in the event of failure. The three classifications have no influence on the application of this standard – the acceptance criteria for all RMMMs are the same, irrespective of size. - TRAMM – General Purpose Track Maintenance Machine – Used for the carriage of equipment & materials to & from depot / worksite. Is fitted with a medium duty, medium reach crane arm. Able to carry short lengths of rail, with a payload capacity of approx. 8 – 10 tonnes. Is able to thimble Continuously welded rail (CWR). Is self-propelled & can run in traffic. - High Capacity TRAMM (HCT) - Specialist Track Maintenance Machine – Used for the carriage of equipment, materials, and up to 40 lengths of 60ft rails, to & from depot / worksite. Is fitted with a medium duty, long reach crane arm. Hi-Capacity TRAMM cannot thimble CWR. Is self-propelled & can run in traffic. - TRM – Twin Jib Track Relaying Machine - Used for the lifting & handling of track panels, in the context of track renewals where panels are to be loaded / unloaded onto a train. Is self-propelled only when on the worksite, is therefore Loco hauled to & from the job, (cannot run in traffic). Lifting capacity of approx. 11 tonnes, but at a fixed length, limited radius / reach. - GPC – General Purpose 12t Crane - Used for general-purpose lifting operations within context of all types of track work. Lifting capacity of 12 tonnes, self-propelled only when on the worksite, & is therefore Loco- hauled to & from the job, (cannot run in traffic). Full radius reach of 13metres. The Contractor would be required to provide Operators and Fitters who are competent to operate items of plant in both normal rail traffic and within possessions. Read full description ## CPV classification Railway maintenance or service vehicles, and railway freight wagons Railway-track maintenance services Source Find a Tender (UK) · Notice ocds-h6vhtk-068617-2026-04-20T11:16:27+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-068617-2026-04-20T11:16:27+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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