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Tag Archives: rolair compressor
  • Clearing The Air About Common Compressor Myths

    When it comes to air compressors, there's a lot to keep in mind. Between the industry jargon, technical terms and units of measurement, it’s easy to confuse the details. The following is a guest post from the Zero Sick Days blog by RolAir Systems, detailing the top five most common air compressor myths reported by customers. Don't let the headlines fool you, the devil's in the details.

    1. Focus on displaced CFM.

    Displaced CFM is calculated by multiplying the pump’s bore and stroke by its RPM. The result might look good in marketing collateral, but it won’t give you an accurate idea of how much air you’re actually getting out of your air compressor. Delivered CFM (or free air delivery) is what really matters, as it factors in the regulated pressure setting (PSI). It’s a measure of the actual air you have at your disposal.

    2. It’s all about tank size.

    Tank size is an important factor, but it won’t make up for a small pump. If the pump doesn’t deliver enough CFM, the reserve air will get used up very quickly - and you’ll have to wait while the tank refills.

    Determine the amount of delivered CFM you need, and then think about how your pneumatic tools operate. If they operate in quick bursts like nailers and staplers, you’ll be fine with a tank that holds 10 gallons or less. If they run for longer stretches, like grinders, sanders, or spray equipment, go with a larger tank. RolAir offers models ranging from 30 to 120 gallons.

    3. Single-phase vs. single-stage. Same thing, right?

    The terms single-phase and single-stage have a similar ring to them, and, for someone with limited air compressor experience, it’s easy to confuse.

    Single-phase refers to the power supply in most homes and small businesses throughout the U.S. The alternative is three-phase power, which is commonly found in industrial and manufacturing settings.

    Single-stage refers to the number of times air is compressed in a reciprocating pump. Single-stage pumps compress air one time. The alternative is a two-stage pump, which compresses the air twice. In general, two-stage pumps produce more CFM and operate more efficiently.

    4. Overvaluing PSI.

    Some people focus solely on the maximum PSI rating of an air compressor. They know the pressure at which their tools operate, and assume as long as the air compressor can meet those requirements, they’re good to go. The problem with this scenario? A key factor is being overlooked. You can’t have pressure (PSI) without flow (delivered CFM). As your pressure increases, the flow will decrease.

    All pneumatic tools use a certain amount of CFM while in use. If your air compressor doesn’t produce enough air for a particular tool, that tool won’t function properly - regardless of the pressure setting.

    5. Hung up on horsepower.

    Comparing size of an air compressor based on horsepower equates to asking your pharmacist for any medicine available in 250mg pills. Clearly that’s not very effective.

    Now imagine calling Nail Gun Depot and asking for a 2 horsepower air compressor. Not all 2 horsepower air compressors are created equal, so you’d likely receive a flurry of questions like, “portable or stationary? Direct drive or belt drive? How many, and what types of tools are you using?"

    At the end of the day, you may not end up with a 2 horsepower compressor.

    Conclusion

    A simple line of questioning is usually enough to clear things up. Before you buy, arm yourself with information. Know the tools you’ll be using. Know their CFM requirements. Know what type of power is available at your job site. Knowing the answers to these questions will help ensure you end up with the right air compressor.

     

    ~The Team At Nail Gun Depot

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  • How To Maximize Air Compressor Efficiency

    The Nail Gun Network proudly presents the following guest post, originally published on "Zero Sick Days" by RolAir:

    "The key to optimal air compressor efficiency is to maintain the integrity of your entire pneumatic system. This includes the air compressor, fittings, air hose, and tools. An efficient pneumatic system will ensure that you’re getting the air you need, when you need it. An inefficient one will cost you time and money. Follow the steps below to make sure your pneumatic system keeps operating the way it was intended to.

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    1. Use 3/8″ air hose whenever possible. All hoses cause some degree of frictional loss. While 1/4″ air hose is lighter and generally easier to work with, the smaller diameter restricts air flow more than a 3/8″ diameter hose would. If the CFM requirements of the tool(s) being operated is close to the air compressor’s limits, every bit of pressure counts. To ensure you’re getting the maximum amount of pressure to the tool, opt for a larger diameter hose. To get an idea of how air hose diameter affects working pressure, check out this handy Air Flow Calculator.
    2. Use shorter lengths of air hose. The idea here is similar to #1. The farther the air has to travel, the more pressure you lose. We completely understand that situations will arise when you are forced to use long runs of small diameter hose. When that happens, refer to the next step.
    3. Use an auxiliary tank. Adding an auxiliary tank in between two lengths of hose allows the user(s) to maximize distance from the compressor while minimizing frictional loss. For example, if you were to use two 3/8″ x 100′ air hoses, you’d be able to work 200′ from the compressor, but only lose pressure over the length of one 100′ section. The icing on the cake is the fact that the Air Keg can go where the compressor can’t, like on a pitched roof.
    4. Lubricate your pneumatic tools regularly. Just be careful what you put in them. The wrong type of lubricant can cause more harm than good by damaging o-rings and other internal components. The correct type of oil will be labeled as a tool lubricant and will contain special additives to promote long life for pneumatic tools. Of course, the obvious question is “How often?” That depends on the type of tool and how hard it’s being used, but for tools that get used daily, applying 4-5 drops at the start of each shift is a good rule of thumb.
    5. Check the system for leaks. This includes the entire air compressor, all fittings, air hoses and tools. Simply allow the compressor to build to top pressure with the air hose and all other tools and components hooked up. Once the compressor has stopped pumping, watch the tank pressure gauge and listen closely. If the needle stays put, you’ve got a leak-free system. If the needle starts to drop continuously (a slight drop is normal as the air cools) or you hear a hiss of air, you’ve got a leak. Excessive leaks in the system can cause your compressor to run more often than necessary, which leads to premature wear. If you have a difficult time locating the leak, we recommend spraying a soap and water solution on the hose and all fittings. A leak will cause the solution to bubble.

    Rolair on Nail Gun Depot

    Like anything else in the trades, a little bit of planning and preparation up front will pay dividends in the end. If you plan out your pneumatic system prior to each job and add steps 4 and 5 to your preventative maintenance plan, you’ll avoid a few headaches and maximize the lifespan of your equipment. If you feel like your pneumatic system is not performing like it should, give us a call and one of our service reps will help you troubleshoot the issue."

    Give these tips a shot and let us know if you see improved performance!

     

    ~The Team At Nail Gun Depot

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