Machine Guarding Engineering & Inspection Services

Machine Guarding

Machine guarding is a critical component of any industrial safety program. Improperly guarded equipment remains one of the most frequent causes of serious workplace injuries — including crushing, amputations, and fatalities. At HITE Engineering, we provide expert machine guarding assessments and Pre-Start Health and Safety Reviews (PSRs) to help employers meet Ontario’s legal requirements and, most importantly, protect their people.

Types of Machines & Equipment We Assess

Our engineering team evaluates guarding and safety measures for a wide range of machinery and equipment commonly found in Ontario industrial facilities:

  • Presses and stamping equipment
  • Conveyor and packaging lines
  • CNC machines, lathes, and mills
  • Automated robotic systems
  • Injection molding equipment
  • Mixers, blenders, and rotating machinery
  • Power tools and machine shop assets

Whether your equipment is newly installed, modified, or part of legacy infrastructure, our team can identify gaps and recommend effective, standards-compliant solutions.

Standards and Regulations Followed

HITE Engineering conducts machine guarding assessments in strict accordance with relevant safety standards and regulatory frameworks, including:

  • CSA Z432: Safeguarding of Machinery (primary standard for physical guarding in Canada)
  • CSA Z460: Control of Hazardous Energy (Lockout/Tagout)
  • Occupational Health & Safety Act (OHSA) – Regulation 851, Section 7 (PSR triggers)
  • Applicable ANSI and ISO guidelines for international or multi-jurisdictional clients

As licensed Professional Engineers (P.Eng.), our team ensures full code compliance, documentation, and sealed reports where required.

Our Machine Guarding Services

We deliver turnkey safeguarding services for manufacturers, warehouse operators, food processors, and more. Our services include:

Site Assessments & Risk Analysis

We inspect equipment for hazardous points of contact (e.g., pinch, shear, entanglement) and evaluate existing safeguards. Our process includes both visual review and technical measurement, using applicable guard spacing standards and hazard severity analysis.

Custom Guarding Design

When existing guards are insufficient or missing entirely, our engineers design practical, production-friendly guarding solutions. We prioritize minimizing impact on workflow while maximizing worker safety.

Guarding Retrofitting

We support retrofitting of older machinery with modern guarding systems — including fixed barrier guards, interlocks, light curtains, and two-hand controls — all verified for reliability and effectiveness.

PSR & Compliance Inspections

If safeguarding changes trigger a Pre-Start Health and Safety Review, we provide full PSR services. This includes on-site inspection, documentation review, and a signed engineering report with corrective actions, if needed.

The Inspection & PSR Process

Our standardized PSR inspection process ensures accuracy, consistency, and legal defensibility:

  1. Document Review – We review equipment drawings, modifications, and manufacturer specs in advance.
  2. On-Site Inspection – A licensed engineer visits the site to identify hazards and verify compliance with CSA Z432 and OHSA requirements.
  3. Risk & Compliance Assessment – Non-conformances are identified and categorized using recognized safety and risk methodologies.
  4. Recommendations – We issue detailed engineering guidance on corrective actions (e.g., new guard design, relocation of controls, signage).
  5. Final Report – A formal PSR report is issued, sealed by a P.Eng., meeting all regulatory documentation requirements.

Real-World Safeguarding Solutions

Our work spans a wide range of industries and machine types. In recent projects, HITE has:

  • Assessed guarding on a robotic cell involving automated pick-and-place arms
  • Identified unsafe access points on legacy hydraulic presses and designed interlock-based solutions
  • Conducted PSRs for newly installed high-speed conveyor systems with integrated e-stop networks
  • Retrofitted a mechanical power press with light curtain safeguarding and dual-palm stations

These projects highlight our ability to adapt solutions to various operational environments, from high-speed manufacturing to food processing and packaging.

Why Work with HITE Engineering?

  • 25+ Years of PSR & Safety Experience: We’ve conducted thousands of reviews under Ontario’s Section 7 PSR regulation.
  • Licensed, Multi-Disciplinary Engineers: All assessments and reports are performed by experienced Professional Engineers.
  • Custom, Practical Solutions: We avoid cookie-cutter answers — our recommendations fit your process and budget.
  • Strong Regulatory Reputation: Our PSR reports are recognized by Ministry of Labour inspectors, and we help clients avoid orders and penalties.

FAQ

Machine guarding is a safety shield or cover that is placed on or around an engineering or manufacturing machine to prevent hazardous areas of a machine from coming in contact with the body parts of its operators or employees.

Point of operation: This is the starting point where operators perform their work on the machine, such as cutting, melting, shaping, or forming materials or stock. 

The power transmission device: This part of a machine or equipment contains the mechanical system which transfers the power to the area of the machine that performs the work. These pieces include cranks, pulleys, belts, gears, connecting rods, chains, and spindles. 

The operating controls: Each machine comes with a mechanical or electrical power control that makes it possible for the operator to turn on or stop the power from continuing. For this reason, the operating controls need machine guarding to protect the operator from injury.

Fixed guards: These safeguards consist of gates, fences, or blade covers and contain no moving parts. They are used to prevent machine operators from encountering hazardous situations at the operation points. 

Interlocking guards: These types of safeguards are made with movable parts that can cut off the power supply or shut down when tampered with. 

Adjustable guards: These guards are attached to engineering machines permanently. However, their moving parts can be manually adjusted to accommodate various operating conditions.

Self-adjusting guards: These kinds of safeguards automatically adjust to the machine operator when they start interacting with the dangerous part of the machine. For instance, the self-adjusting guards shut down when the machine is idle.

Yes, it’s crucial. A safety assessment is essential whenever you acquire a new machine or make changes to an existing one. End users bear the responsibility for machine safety and compliance, as manufacturers are not always obligated to meet all relevant safety standards. Most regulations mandate a safety assessment for compliance, irrespective of the machine’s age. Ensuring proper guarding and safety measures from the outset is vital to protect workers and uphold legal requirements.

The impact on usability varies with the safety provider. At our company, we customize safety solutions for user-friendliness. During the design phase, we address any concerns to ensure that safety measures do not hinder machine operation. After installation and validation, we offer training on proper use and maintenance to ensure seamless operation while prioritizing safety.

Effective machine safeguards must meet key criteria to ensure worker safety and operational efficiency. They should primarily prevent any contact between workers and hazardous moving parts, be constructed from durable materials, and securely fastened to prevent tampering or removal. Safeguards must also prevent objects from entering into hazardous areas and enable regular operations to be completed safely without removal. Ideally, well-designed safeguards should enhance productivity by allowing workers to operate efficiently without compromising their safety.

Learn More About Machine Guarding

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