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Alternative Tying Systems Ltd Apollo Scaffolding Ties, Product News Update
New ideas, new products and new services from Apollo
Apollo scaffold hooks look like this
Imitations look like this
Apollo nylon scaffold plugs
Other types look like this
The working tolerance is created by the
curvature of the bend on the J bolt. Apollo hooks have a 11mm radius that
provides a working tolerance of 22 mm which is the maximum allowable distance between
the actual position of the drilled hole and the
ideal position of where the hole should have been drilled.
The ‘arrow’ point provides no more than 3 mm of working tolerance.
Any connection on the straight part after the bend, indicated by the ARROW will lead to a maximum load of no more than 10 kN before they bend.
That’s a SWL of only 5 kN MAX We know because we had independent tests carried out.
So the safe working load is no more than 5 kN. This is why some other suppliers state a safe working load for their hooks
of only 3.5kN. Apollo’s are 18.3 kN: Quality performing designs
The Apollo plugs are dimensionally correct and system
compatible. Lengths are: 70, 100, 135 and 185 mm
Manufactured from PA6 nylon
The plug has a collar to assist in the correct and
optimum setting and to retain the plug as being ‘surface fixed’. Like its designed to do!
The imitations may be labelled 70 mm when in fact
they are 75 mm. How deceitful but very true!!!
They probably will not have a collar.
Maybe plastic and not PA6 nylon. Plastic
deteriorates by collapsing up to 2 mm within 4 weeks after the installation has been loaded.
You should never accept a 75 mm plug as being system compatible. The extra 5 mm of plug length
reduces the area of expansion by 10% so it must have an effect on performance. If a 70 mm plug is not necessary then why are setting rings positioned for 70 mm plugs? Remember the correct installation is
achieved when the screw protrudes past the end of the plug by 6-8 mm. How does this enhance performance by a significant amount? Please call us and we will advise!
We have a potential concern about professionalism within our area of the construction market.
The suppliers of the 75 mm plugs either know that it is non system compatible and are therefore deceiving customers or if they don't know about the system needing to be compatible by design and dimensions it
means their technical application knowledge needs to be questioned.
Other types are not likely to provide you with
the optimum performance as they are not system compatible.
TG4:11 recommends compatible systems.
The tooling to produce an ‘Apollo
Hook’ costs more than other designs and also needs to be
replaced on a regular basis to maintain a close to parallel as
possible on the return leg of the ‘J’ bolt. This design is performance
enhancing and allows a safe working load of 18.3 kN
A very practical 22 mm working
tolerance
A not very practical 3 mm working
tolerance
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