Machine Safeguarding

Julian Kalac, P.Eng.

5 Steps to… Turning Workplaces Into Safe Places

Machine guarding

5 Steps to… Turning Workplaces Into Safe Places

1. Safety Audit / Risk Assessment 2. PSR (Pre –Start Safety

Review) 3. Design And Installation 4. PSR Sign-Off … 5. Training and Documentation

Step 2--PSR review Report •A pre-start review is a written report that details measures taken to ensure that the construction, addition, modification and or installation of a new apparatus, protective element or process is compliant with current standards before production begins. •Pre-Start Health & Safety Review is a report written by a PROFESSIONAL ENGINEER** that details the measures necessary for compliance with applicable sections. •This is done at the design stage and the report will outline the steps needed for compliance. These steps or measures are to be completed by the employer before any production operation begins.

Applicable provisions of Regulation 851 Circumstances

1. Subsections 22 (1), (2) and (4) Flammable liquids are located or dispensed in a building, room or area.

2. Sections 24, 25, 26, 28, 31

and 32

If any of the following are used as protective elements in connection with an apparatus:

1. Safeguarding devices that signal the apparatus to stop, including but not limited to

safety light curtains and screens, area scanning safeguarding systems, radio

frequency systems and capacitance safeguarding systems, safety mat systems, two-

hand control systems, two-hand tripping systems and single or multiple beam

systems.

2. The barrier guards use interlocking mechanical or electrical safeguarding devices.

3. Clause 45 (b) Material, articles or things are placed or stored on a structure that is a rack or stacking

structure.

4. Section 63 A process involves a risk of ignition or explosion that creates a condition of imminent hazard

to a person's health or safety.

5. Section 65 The use of a dust collector involves a risk of ignition or explosion that creates a condition of

imminent hazard to a person's health or safety.

6. Sections 87.3, 87.4, 87.5 and 88,

subsections 90 (1), (2) and (3),

and sections 91, 92, 94, 95,

A factory produces aluminum or steel or is a foundry that melts material or handles molten

material.

7. Sections 51 and 53 The construction, addition, installation or modification that relates to a lifting device,

traveling crane or automobile hoist.

8. Sections 127 and 128 This process uses or produces a substance that may result in the exposure of a worker in

excess of any occupational exposure limits as set out in Regulation 831

PHSR REQUIREMENTS SECT. 851

Safety Equipment

Separating Non-Separating

Fixed Movable Movable Localized Approach/person detection

Fence, Barrier,

requires tool

Doors, interlocked

guards

Mechanical, Tactile

Electro Sensitive

Two-Hand Control

Emergency Off

Enabling Device

Safety Mat Safety Edge Safety Bumper

AOPD Light curtain

AOPDDR Scanner

PIPDS Light beam

DEFINING TYPE OF GUARDING

FULLY AUTOMATED PRINTING PRESS

Hydraulic press salvaged & turned into a safe machine

BLACK CLAWSON LAMINATOR SHUT DOWN BY MOL

AREAS TO BE GUARDED

EXAMPLE OF PINCH POINTS

LAMINATOR GUARDED

N5 CNC PUNCHING M/C MACHINE

N4 ~ 3 FT Spacing

~ 3 FT Spacing

N4 CNC PUNCHING M/C

N4 MACHINE

Example #1 Slitter guarding using guards

Example #1

Front view of guard

Example #1 SLITTER GUARDING USING MECHANICAL

GUARDS

Example #2 Slitter guarding using light curtains

Example #2 Guarding using light curtains