Q-safe – one of the safest quick coupler in the world

Q-Safe™ is engcon's newly-developed threefold safety quick coupler for excavators. Q-Safe is part of engcon's new drive and concept "Non Accident Generation" in which safety awareness hallmarks the whole product range.

With Q-Safe fitted to an excavator, the bucket or other attachment must have a certain degree of ground contact to allow connection or removal.

That is to say buckets or tools and attachments cannot be disconnected whilst in the air. For as long as the quick coupler is not fully locked the excavator can only function at a significantly reduced speed. Full power is resumed only after the attachment has been correctly been connected and locked.

Locking takes place automatically by the attachment first being manoeuvred into a fixed, wedge-shaped position, with the simultaneous connection being made through a steel lip, which fully prevents the attachment from dropping or running the risk of swinging.

In addition to the mechanical locking system and the safety lip, the attachment is monitored by two independent sensors that react on contact with both bucket axles.

The Q-Safe threefold safety system is thus achieved via: Hydraulic monitoring, mechanical locking, electronic monitoring. With Q-Safe the driver cannot get into a situation where things go wrong – it is a preventative system, contributing to a safer workplace.