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FB conveyor chains
are constructed to withstand the most arduous applications. The chain’s
characteristics are attained by surface hardened, homogenous and accurate
pins and bushes with locating shoulders. The holes in the sideplates are
made by special precision punching resulting in a perfect cylinderical
hole formation. These characteristics together with a press fit between
pins, bushes and sideplates makes the strongest joint possible.
ROUND
RIVETED CHAINS
The bushes are connected to the inner plates by a cold riveting method.
The pins are spun riveted, which is also a cold riveting method, in which
an automatic machine eccentrically works the ends of the pins with a high
compression force to the outerplates. A very strong and sideways impact
resistant joint is achieved by this procedure. This is acknowledged to
be the best method of riveting and is superior for small chains.
CHAINS WITH WELDED
PINS
The bushes
are connected to the inner plates by a cold riveting method in the same
way as in round riveted chains. The pins are welded by CNC-automatic welding
machines with high and consistent quality.Furthermore, welded pins increases
the life of the chain. The chain is very stable and wear resistant to
the exceptional forces seen in some arduous applications. The special
steels used in FB chains are all fully weldable.
CHAINS WITH WELDED
PINS AND BUSHES
Both the
pins and bushes are welded to the side plates. The welding is made by
CNC-automatic welding machines to guarantee high and consistent quality.
This alternative is considered the best in the most demanding applications.
With welded pins and bushes the chain achieves about 30% higher breaking
load compared to the same dimensioned standard chain with riveted construction.
PROFILE CHAIN
The internationally
patended profile chain is the result of our ongoing research and development
by FB Ketjutekniikka. Profile chain has been designed and developed for
the most demanding and difficult applications commonly found in the timber
log handling and paper industries, but can also be used in other kind
of demanding applications. Profile chain is lighter than comparable standard
chain and offers greater resistance to wear and shock loadings together
with increased fatigue life.
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