Robotic Plasma Cutter Hazards
A robotic plasma cutter is a thermal cutting device that melts or severs metal by removing a piece of the metal. The robotic component of this piece of manufacturing equipment is operated by a programmed computer system that directs it to perform certain motions or movements. The introduction of this type of cutting machine has brought with it a host of hazards.
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Explosion Hazards
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The plasma cutter uses a combination of gases to produce the cutting arc or torch. The gases used are flammable material, so any spark can cause an explosion in the hoses carrying the gases to the plasma cutter tip or to the tanks holding the gas. The plasma cutter's temperature generally exceeds 18,000 degrees, which can cause the hydrogen used within the system to exploded if the gas leaks out from one of the many connections.
Burns
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Another common hazard accompanying the use of a plasma cutting device is the possibility of burns. Any employee working close to a plasma cutter must wear personal protective equipment, PPE, because molten metal is being blown away from the cutting point. The plasma cutting device also produces a bright light, similar to the light produced by welding devices. Protective glasses or face shields and a welding apron and gloves are common PPE used by employees working near robotic plasma cutters.
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Fumes
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The release of gas fumes around the robotic plasma cutter is also a potential hazard. The robotic plasma cutter must have the proper ventilation surrounding the equipment. If there is a problem with the ventilation, employees can experience dizziness, vomiting, eye irritation and other physical symptoms that accompany the intake of the gases. Cutting metals that have a galvanized coating or are calcium plated, the coating must be removed before using the robotic plasma cutter. Cutting these type of coating with a plasma cutter will create a toxic gas.
Electric Shock
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Electric shock is a potential hazard of robotic plasma cutters. The cutters require a constant stream of electricity to operate properly. The voltage requirement for most plasma cutters range from 50 to 60 volts, but can require more than 200 volts, depending on the type of robotic plasma cutter. The use of this much power to operate a piece of equipment increases the possibility of electrical shock. All cutting machines must be grounded properly. Do not work on a robotic plasma cutter under wet conditions and wear the proper electrical PPE when performing regular maintenance on the machine.
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References
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