Self-build (Omavalmiste) Ru-Mu Työmaaparakki
Built: 1992 · Series: Other models
More machines from model year 1992
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The Self-build Ru-Mu Työmaaparakki is a trailer (Self-build) (EU vehicle class O3), registered as built in 1992. It is 11,550 mm long and 3,500 mm wide, weighs 3,600 kg unladen and has a permitted gross weight of 4,600 kg.
Payload for the Self-build Ru-Mu Työmaaparakki, i.e. permitted gross weight minus unladen weight, is 1,000 kg. The trailer itself therefore accounts for the larger share of its gross weight.
With a permitted gross weight of 4,600 kg the trailer exceeds the BE limit of 3,500 kg. It requires a C1E licence as long as the combination stays within 12,000 kg, otherwise CE – in practice behind a truck or an agricultural tractor.
Among the 348 trailers (Self-build) with a stated length, the Self-build Ru-Mu Työmaaparakki at 11,550 mm is among the longest (rank 60); the range runs from 3,000 to 26,084 mm. The Finnish vehicle register lists one unit – one of the brand's most common models.
Omavalmiste – further self-built utility trailers from the Finnish vehicle register: generator sets, screening plants, crushers, conveyor belts, cable wagons, site containers and workshop wagons on trailer chassis
Omavalmiste is Finnish for “self-made” – the entry that the registration authority Traficom keeps in the manufacturer field when a trailer does not come from a factory but was built by a business or keeper and registered after a registration inspection. This collective page covers the utility trailers outside the class division, and the model names show what Finnish businesses put on wheels: Aggregaatti is the mobile generator set, Seulontalaitos the screening plant, Keskipakomurskain the impact crusher, Hihnakuljetin and Hiekankuljetin conveyor belts for gravel and sand, Syöttösiilo and Fillerisiilo silos, Kaapelikärry the cable wagon of the grid operators, Korjaamovaunu the workshop wagon, Työmaakoppi, Työmaaparakki and Sosiaalitilavaunu the site accommodation units, Sauna the sauna wagon. Alongside stand the axle counts (1-AKS. for single-axle), dimensions such as 185X668 and brands of the chassis and units used – Atlas Copco, Lokomo, Valmet, BPW, SAF.
Read on 3 more paragraphs
The register lists 48 versions with kerb weights from 220 to 26,000 kg, gross weights from 700 to 10,000 kg, lengths from 3,000 to 22,000 mm and widths from 1,820 to 3,500 mm.
These vehicles are the mobile infrastructure of Finland's construction, gravel and energy industries: plants that stand on a site for weeks and are moved by truck or tractor instead of being permanently installed – registered as trailers after individual inspection.
Anyone taking over such a vehicle checks registration and inspection deadlines, frame and welds, axles and braking system, drawbar eye or ball coupling, lighting and tyres, on generator sets and plants their service history; running-gear parts usually come from BPW, SAF or Knott.
Sources: SpecCodex register, model data: Omavalmiste (weitere Anhänger), Zulassungsdaten Traficom (Finnland), Herstellerfeld omavalmiste, Traficom (finnische Verkehrs- und Kommunikationsbehörde)
Technical data
Dimensions and weights
| Length | 11,550 mmcorrect |
|---|---|
| Width | 3,500 mmcorrect |
| Unladen weight | 3,600 kgcorrect |
| Gross vehicle weight | 4,600 kgcorrect |
Frequently asked questions
How much does the Self-build (Omavalmiste) Ru-Mu Työmaaparakki weigh?
The unladen weight is 3,600 kg.
What is the gross vehicle weight of the Self-build (Omavalmiste) Ru-Mu Työmaaparakki?
4,600 kg.
What are the dimensions of the Self-build (Omavalmiste) Ru-Mu Työmaaparakki?
11,550 mm × 3,500 mm.
When was the Self-build (Omavalmiste) Ru-Mu Työmaaparakki built?
Production years: 1992.
What to check before buying
- Search the frame and welds at the axle mounts — that is where cracks start.
- Check the brakes and the last inspection in the papers.
- Work the gross weight against the towing vehicle before buying.
- Compare the chassis number with the papers.
- Look at the floor, cover or body from the inside — rust does not show from outside.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 5 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
