Container chassis: size, locks and running gear
A chassis carries a container through defined interfaces. Container length, chassis configuration and legal operation are separate checks.
Chassis structure and handling system
Frame geometry, lock positions, adjustment and self-handling equipment define the chassis; the carried container remains a separate entity.
Fixed chassis
One documented container length and lock pattern.
Gooseneck chassis
Dropped centre rail accepts a compatible tunnel container.
Combo / extendable
Sliding frame changes supported container positions.
Tank chassis
Chassis carries a separately framed ISO tank entity.
Sidelifter
Onboard lifting arms transfer the container beside the chassis.
Identify the container interface
The Stoughton references distinguish container chassis configurations. Record the intended container size, interface positions and installed locking equipment. Do not assume a chassis accepts every container that shares its nominal length or that an adjustable chassis is approved in every position.
- Container identity
- Lock positions
- Fixed or adjustable configuration
- Manufacturer compatibility evidence
Keep mass and reactions separate
Container gross mass does not describe its centre of gravity or the reactions on the tractor and chassis. Obtain the cargo and container weight information and the exact running-gear arrangement. Axle count is a discovery field, not a legal payload calculation.
- Container and cargo mass
- Load distribution
- Axle arrangement and spacing
- Tractor and coupling
Inspect the working connections
Inspect locks, bolsters, frame, landing gear and running gear with qualified help. Record any repaired or substituted components. Keep port or terminal requirements and the proposed road route with the equipment check.
- Lock condition and engagement
- Frame and bolster repairs
- Current inspection records
- Terminal and route requirements