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Description

Couplers: Concept

Tubes and couplers are the traditional solution to scaffolding specially for complex shapes.

Couplers: Advantages

Strong Connectors:
When subjected to a direct vertical force each wedge of the coupler will resist a force of **0 kg. However, when
the load is applied on a horizontal tube connected to two vertical tubes (see test certificate), "a maximum load of
***0 lb will make the couplers start to slip gradually". This means each coupler will withhold ***0 kg.

Unaffected by vibration:
This is proven by erecting a scaffold on a vibrating table and placing a further vibrator inside a tube and noting
the lack of effect on the wedges.

Safe and permanent:
The spring effect inherent in double wedge design permits wedging further along than is required thus securing
safe and permanent connection.

Simple and indestructible:
The coupler is manufactured out of 6mm steel plate and it can therefore withstand very tough site conditions.
The wedges cannot fall off. They remain a permanent part of the coupler. In fact, workers who use ZHG couplers refuse to use other couplers.

And most important:
In addition to the in-house tests, the coupler was tested in the McGill University laboratory as the certificate
below shows.
The coupler has withstood more than *0 years of onsite testing.