This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at

Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 72. Plastic Processing Machinery

Return to index
New query

§4600. Injection Molding Machine.

Every injection molding machine shall be guarded:

(a) By a sliding gate guard so designed and installed that it interposes a barrier between the dies and the operator before the dies can close and shall be so arranged that if the gate can be opened during the die closing cycle the die motion will be immediately stopped by the opening of the gate.

The sliding gate guard shall extend over the top and to each side of the dies to prevent the operator from placing his/her hands between the dies while they are closing. The danger zone on the side of the machine opposite the operator's working position shall also be guarded, or

(b) By two-handed constant pressure devices or controls which require the simultaneous use of both the operator's hands during the entire die closing cycle.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment filed 4-25-86; effective thirtieth day thereafter (Register 86, No. 17).

Go BackGo Back to Article 72 Table of Contents