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- Provision of Rail Mounted Maintenance Machines (RMMs/TRAMMs) & Rail Mounted Cranes for - Southern Region
Provision of Rail Mounted Maintenance Machines (RMMs/TRAMMs) & Rail Mounted Cranes for - Southern Region
AI Summary
NETWORK RAIL INFRASTRUCTURE LIMITED is conducting a market engagement to explore the supply and operation of rail‑mounted maintenance machines (RMMs) and rail‑mounted cranes for the Southern Region. The procurement focuses on several types of track maintenance vehicles, from general‑purpose machines to specialised cranes, that will be deployed to carry equipment, materials and track components to and from depots and worksites while operating safely in normal rail traffic and in possession areas.
The vehicle suite includes the TRAMM, a general‑purpose track maintenance machine equipped with a medium‑duty, medium‑reach crane arm capable of lifting 8–10 tonnes, handling short lengths of rail and thimbelling continuously welded rail; the High‑Capacity TRAMM, which can move up to 40 lengths of 60‑ft rail but cannot thimbrel CWR; the TRM twin‑jib track relaying machine that lifts approximately 11 tonnes but only on site and is loco‑hailed; and the 12-tonne General Purpose Crane with a 13‑metre radius reach, also loco‑hailed. All machines are classified by gross laden weight, yet the acceptance criteria remain uniform across the classifications.
Operators and fitters supplied by the contractor must be competent to manoeuvre the plant in both normal traffic and possession environments, ensuring safe and efficient track maintenance operations across the specified locations in London, the South West, Kent and Surrey. All RMMs must comply with the UK railway maintenance vehicle standard.
Description
Machine Definitions
RMMs are classified as:
a) large - 5.5 tonne gross laden weight and above.
b) medium - less than 5.5 tonne gross laden weight and greater than 1 tonne.
c) 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.
Estimated date of publication of contract notice: 2026-06-22T23:59:59+01:00
Contract location: UKI
Engagement process description
Please copy and paste the link below into your browser to access the market engagement survey
https://forms.office.com/e/KVcaJ9KENT
The survey will close on 30/04/26 at 1400
We look forward to hearing from you.
Lot: 1
Languages in which tenders or requests to participate may be submitted: En