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In the previous section, we describe conventional, three,
four and five axle, Semi Low Loaders. However, more sophisticated
Semi Low Loaders are available, with axle combinations ranging
from five to ten (eight axle illustrated). Obviously, these
offer far greater payloads, normally ranging up to 100 tons
(regulations permitting). The greater the number of axles,
the more complex the suspension and steering mechanism becomes,
not only to negotiate corners but also guarantee equal axle loadings.
It is self evident that the main deck length (B) is largely
influenced by the number of axles. One compromise on this
type of trailer is that the deck height (H) is generally
greater, being in the region of 0.90/1.00m. This is primarily
to provide for additional axle deflection, over the length
of the trailer, when operating in extreme road/ferry conditions
i.e. acute link span angles, hump back bridges etc.
This type of trailer also comes available with a wide range
of ancillary equipment i.e. support cradles, turntables with
girder sets (for split axle combinations), remote steering
using an auxiliary power pack etc.
This is only a brief, general description. For more detailed
information,
call stg on +44 (0) 1234 213339. |
