Machine Guarding

January 1970

The increased industry focus on machine guarding and compliance with AS4024 has been a large focus of ours over the last 12 months with over 600 significant hazards resolved in some quite challenging situations and environments.  We have been supporting several clients in the management and upgrade of industrial guarding to enable both practical compliance with the standard while maintaining sufficient operability and maintainability of the machine.  We have developed basic standard guarding solutions that are economic to produce and install, yet flexible enough to be adapted to different situations.

The guarding project commenced in March 2010. Safety is a very high priority at Carter Holt Harvey Tasman and the guarding project ensures that correct guarding and work procedures are put in place to eliminate work place injuries.

Each area or machine guard is assessed and rated on the severity of its hazard by a risk rating system. A guard for a specified area or machine is designed, drawn, evaluated and subsequently approved. Once approved, the drawings are sent to manufacturers to fabricate and install. Some of the guards may need to be installed within close proximity to a machine and to do this the machine must be shut down.

The guards are made in all different shapes and sizes, but must comply with the AS4024.1 standards with respect to the hazard identified. Electrical components such as programmable logic controllers, light curtains and interlocking systems are required for some of the guards. These components will stop the machine if someone is to pass through the guard or open it.

The Guarding Project is being carried out by Chris Matthews (Project Engineer), Andrew Brabant (Mechanical Engineer), Brian Robinson (Senior Draughtsman) and Darrin Hawkes (Engineering Manager) of Mainstream Engineering Ltd.