Savvy manufacturers never stop researching to keep costs down and improve productivity… Whilst the up front cost of electric power tools is certainly attractive, pneumatic tools offer a lower total cost of ownership and greater throughput in the lon run.
Industrial air grinders offer a very different value proposition than electric grinders. They may be engineered for longevity, efficiency, and above all safety. Air powered grinders are rising in popularity because of the benefits provided in terms of their cost. Adopting air powered grinders leads to greater cost benefits during the entire life of the tool.
On this page, we explore 5 clear benefits afforded through industrial grade pneumatic grinders.
1. Non-recourse of Electric Shock
Grinders coming from all varieties are often utilized in environments where moisture, conductive materials, and flammable liquids can be found. Damaged cords and wires pose a risk to operator safety due to electrical shock. Furthermore, metal fabricators often depend on flammable chemicals, for example acetone, to scrub and prep metals before welding. Pools of spilled liquids can quickly be ignited by faulty electrical cords. Additionally, vapor concentrations can be higher when in confined spaces including those located in the mining and tank cleaning industries. On the other hand, air tools require no electricity, in addition to their rotary vane air motors generate no spark. Pneumatic grinders therefore produce a safer work place which decreases the likelihood of generating OSHA violations. The bottomline is, air tools are safer than electric tools because a cloak hose will not emit a spark and can be employed in wet conditions.
2. Superior Ergonomics and Power to Weight Ratio
Pneumatic grinders give a better power to weight ratio than electric grinders. In other words, pneumatic grinders produce more horsepower in the lighter and smaller package. Misleadingly, electric tool manufacturers often classify the power of their tools through the wattage fed within their electric motors (incidentally 750 watts equals roughly 1 horsepower). What’s not mentioned in electric tool specifications is that the power fed to the motor is not same wattage that concerns the spindle of the tool. Actually, only 50% to 60% in the rated wattage actually involves the abrasive or accessory. In contrast, with pneumatic grinders, power in equals power out. A cloak motor rated for 1 horsepower will provide that same level of capability to the tool.
3. Increased Productivity
Let’s put ergonomics and ratios aside for a moment. If increasing worker output can be a priority on your operation (and when don’t you think?), pneumatic grinders will help you meet your goals. When working with grinders of all sorts, Revolutions Per Minute (RPM) play an important role within the material removal equation. Abrasive products (grinding wheels, fiber discs, flap wheels, etc.) are engineered to do optimally at the specific RPM. Fortunately, modern pneumatic grinders are equipped with a speed control mechanism, (otherwise known as a governor), that ensures proper RPM by regulating the ventilation for the tool. Because operator places downward pressure about the abrasive, the governor “opens up”, increasing ventilation to the motor and ensuring the best spindle speed.
4. 100% Duty Cycle + Top rated in Harsh Environments
Mitch Burdick, something Manager for Power Tools at Bosch says: “The two biggest threats affecting electric tool life are dirt and as well as heat – dropping them in water, or baking them within hot sun doesn’t help either.” By their very nature electric motors use a rated duty cycle which should be respected. With no periodic rest, the temperature generated through the motor itself will diminish performance and in the end cause premature tool failure. The truth is, for every 4 minutes running, an electrical grinder was designed to get one minute of rest.
Furthermore, the generation of particles is inherent in any material removal process. Together with the open grate style motor compartments essential for cooling, electric tool motors are more vulnerable to the accumulation of the dust and dirt. As opposed, Industrial Grade Air Tools are made designed for use in foundries, shipyards, offshore oil platforms, power plants, metal fabrication facilities, and petrochemical refining plants. Air tools use a 100% duty cycle, meaning they may be meant to run 24 hours a day 7 days a week (when used in combination with a filter regulator lubricator). Air tool housings are made of aluminum or steel, not Fibreglass driving them to more up against the impact from repeated drops. Pneumatic grinders can also be used underwater if the exhaust is vented higher than the surface!
5. Simplicity of Servicing and Sustainability
An advertisement grade grinder is not an disposable item of equipment and does not immediately finish up in the landfill as being a “disposable” commercial electric grinder. Pneumatic grinders might be updated and be periodically rebuilt often over. The normal electric tool maintenance interval is between 60 and 120 hours after which the tool will typically need, at least, a whole new list of brushes. Comparatively, a garage / maintenance grade air tool averages 200 hours between service intervals while a truly industrial grade air grinder can increase to 2000 hours between tune ups. When it’s time to service your air tools, convenient and clearly labeled kits can be obtained which contain the most frequent wear parts.
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