Graaff Other models
2 models in this series
Graaff P-A11/71 – EU category O4 trailer: 11,000 kg gross weight, 6,905 kg unladen weight, 7,400 mm length, 2,500 mm width
With a gross weight of 11,000 kg, the P-A11/71 sits just above the threshold for EU trailer category O4 and so counts among the heavy trailers over 10 tonnes.
Read on 3 more paragraphs
Unladen weight is 6,905 kg, giving a payload of 4,095 kg – on this trailer, the unladen weight therefore accounts for a substantial share of the gross weight. Length stands at 7,400 mm and width at 2,500 mm, the standard width in Europe.
Since the gross weight exceeds the roughly 3.5-tonne threshold, air brakes are required; a mechanical overrun brake is no longer permitted here. The tow vehicle would be a lorry requiring category C or CE. The high unladen weight relative to the gross weight points to a sturdy build designed for continuous, heavy-duty use.
On a used example, what counts is the condition of the brake system and linings, the tightness of the air lines, and rust at the frame and axle mounts. Since the payload on this trailer is comparatively small, it is also worth checking whether added fittings or bodywork have pushed the unladen weight up further, cutting further into the payload available in everyday use. The condition of the landing gear and how easily it operates also belongs on the check, since it carries a correspondingly heavy load given the high unladen weight of this trailer. A service record showing regular greasing of the landing legs is a good sign on an example this heavy.
Sources: SpecCodex-Register: Kennwerte des Modells Graaff P-A11/71
Models
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
