The development of the plastics industry in NZ has resulted in a substantial increase in the number of blow moulding machines used to manufacture a wide range of products. As the number of machines has risen, so has the number of accidents due to persons being trapped by the moulds or platens. The problem has been to prevent entry to these dangerous parts when they are in motion, and also to prevent a dangerous trapping movement from occurring when the moulds are open and the trapping zone is exposed.

The purpose of this booklet is to acquaint blow moulding machine owners and users with their statutory obligations under the Machinery Act 1950, and to show examples of some methods of guarding these machines.

Table of Contents

Foreword
Introduction
Definition
Accident Causes
Requirement of Machinery Act 1950
Prime Mover and Transmission
Dangerous Parts - Platen Moulds
Application
Pneumatic Equipment
Mould Setting
Recommnedations
Solenoids
Heaters
Additional Information