Author: Denis Vashchenko, Head of Occupational and Industrial Safety Department at CHP-2 — Norilsk-Taimyr Energy Company
Angle grinders (AGs), or "grinders," are popular tools in construction, renovation, and other industries. They are used for cutting, grinding, and polishing various materials such as metal, stone, concrete, and wood. However, working with an angle grinder involves a number of hazards that can lead to injuries and even death. In this article, we will look at the main causes of injuries when working with angle grinders and ways to prevent them.
According to the European Power Tool Association (EPTA), several thousand injury cases related to angle grinder operation are recorded annually in Europe. Most of them occur due to improper tool use or failure to comply with safety regulations. A similar situation is reported by the Occupational Safety and Health Administration (OSHA); every year, more than 1,000 injury cases involving this tool are recorded in the USA. This highlights the importance of following safety rules, using personal protective equipment, training workers, and supervising their work.
Main Causes of Injuries
The main causes of injuries when working with angle grinders are:
- Incorrect work technique. Many workers do not know how to properly use an angle grinder, which leads to incorrect tool positioning during operation and, consequently, to injuries.
- Lack of personal protective equipment. Workers often neglect the use of personal protective equipment, such as safety glasses, face shields, hearing protection, and gloves, which increases the risk of injury.
- Poor supervision of work performance. The lack of systematic oversight by experienced colleagues or a supervisor can lead to errors and, as a result, to injuries.
- Use of faulty tools, cutting, and grinding discs. Working with a faulty angle grinder or accessories can lead to unexpected breakdowns and injuries. Therefore, it is important to regularly check the tool and abrasive wheels for malfunctions or chips.
- Failure to comply with safety rules. Many workers ignore safety rules, such as working in a well-lit area, using a protective guard on the angle grinder, etc., which also increases the risk of injury.
- Psychophysiological factors. Fatigue, stress, and other psychophysiological states can affect concentration and reaction time, increasing the likelihood of errors and injuries.
- Insufficient training. Not all workers undergo training for working with angle grinders, which can lead to improper tool operation and injuries.
- Poor working conditions. Unsatisfactory working conditions, such as poor lighting, noise, and vibration, can distract the worker and reduce concentration, leading to an increased risk of injury.
- Ergonomic violations at the workplace. An improperly organized workplace can cause discomfort and muscle strain, which reduces control over the tool and increases the risk of injury.
Ways to Prevent Injuries
To prevent injuries when working with angle grinders, the following safety measures must be observed:
- Undergo training and briefing. Before starting work with an angle grinder, the worker must undergo HSE training and briefing.
- Use personal protective equipment. Protective shields, hearing protection, gloves, and special clothing must be used when working with an angle grinder.
- Work under supervision. Novice workers should work exclusively under the supervision of experienced colleagues, instructors, or an immediate supervisor.
- Check the tool. Regular inspection of the angle grinder for malfunctions will help avoid potential risks.
- Follow safety rules. Safety rules, such as working in a well-lit area and using a protective guard, must be followed by all workers.
- Maintain well-being. Workers should avoid performing work in a state of fatigue or stress, which can reduce concentration.
- Organize the workplace. The workplace should be organized in a way that ensures the comfort and safety of the worker.
Compliance with these safety measures will help reduce the risk of injury when working with angle grinders and protect the health of workers.
For a more visual example, I will share the presentation material we use during briefings and staff training in our companies before starting work involving angle grinders.