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Engen 2PV – EU class O4 trailer: 20,000 kg gross vehicle weight, 5,600 kg unladen weight, 9.00 m long, 2.55 m wide, built 2008
With a gross vehicle weight of 20,000 kg, the Engen 2PV falls into EU trailer class O4, the heavy trailers and semi-trailers above 10 tonnes hauled in heavy-goods transport with their own air brake system behind trucks or tractor units. Vehicles of this weight class spread their load across several axles and need a correspondingly load-bearing chassis together with the brake system.
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The 2PV was built in 2008 and has an unladen weight of 5,600 kg; against a gross vehicle weight of 20,000 kg, that leaves a payload of 14,400 kg. Overall length is 9,000 mm, width 2,550 mm.
Trailers of this size carry the actual load volume in road haulage, while the towing vehicle supplies only drive and steering. From class O3 upward, the EU requires a dedicated air brake system; it needs sound lines and working brake cylinders on every axle so that braking takes hold reliably along the whole length of the vehicle. A trailer of this weight class is towed by a truck, not a car.
When buying used, an air-braked trailer of this size lives or dies on the brake system: check lines, brake cylinders and linings on every axle for corrosion, leaks and wear. Inspect the chassis and frame for rust and cracks, along with axle bearings, suspension, tyres and tread depth, lighting, and the coupling to the towing vehicle. With a build year of 2008, also check the condition of brake lines and axle suspension after many years in service.
Sources: SpecCodex-Register: Kennwerte des Modells Engen 2PV
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