GlossaryEN1 min readUpdated: Jun 8, 2026
Semi-trailer truck
Unlike rigid lorries or a tractor unit alone, a semi-trailer truck combines two components: a tractor (powered engine unit) and a semi-trailer (unpowered cargo unit).
Last updated: Published:
Source: https://de.wikipedia.org/wiki/Sattelzug
Category
Logistics Concept
Reading time
1 min
Words
102
Mentioned in
–
Unlike rigid lorries or a tractor unit alone, a semi-trailer truck combines two components: a tractor (powered engine unit) and a semi-trailer (unpowered cargo unit). Coupling occurs via a fifth wheel—a mechanical device that transfers part of the trailer's weight onto the tractor. This design allows high payloads (up to 40 tonnes gross vehicle weight in EU countries) with good manoeuvrability, making the semi-trailer the standard for long-distance transport and logistics networks. The tractor can be quickly decoupled while the trailer is being unloaded or waiting—a significant advantage for fleet utilisation. Semi-trailers are typically configured for palletised loads, containers, and swap bodies.
Next steps
Tools that match this term
Related Terms
You might also be interested in these terms
Logistics knowledge straight to your inbox
Weekly: Top news, industry facts and insights from the world of logistics – free.