MARK AIR COMPRESSOR

 My knowledge of manufacturing hardwood furniture has taught me that about half the time involved in constructing each chair, table or cabinet is taken up with sanding. When you are trying to create a livelihood in the woodworking industry with hourly employees you have to cut inefficiency to a blank minimum. This does not mean being a tyrant but, instead, removing any and all impediments that may be slowing construction, sanding and finishing.

I started my woodworking career with a quarter-sheet electric sander, quickly graduated to an orbital electric disc sander and finally realized that I possibly could substantially cut sanding time with an air palm sander.  I settled on a 5” Dynabrade sander and Sears 3HP air compressor. It took me less than an hour or so to understand my faux pas: The tiny compressor I bought could not begin to maintain with the air requirements of the air sander. It'd go out of air pressure almost immediately and the air sander would decrease to the level of being worthless. I'd then have to attend for several minutes for the pressure to develop again to get another minute of sanding.

Compounding the problem was the fact I'd three people hired as sanders and so I will have to keep three air sanders running at 10,000 RPM all day long long. Used to do some arithmetic and unearthed that I would want a five horsepower air compressor with a sizable tank to maintain with the demand. I was fortunate to find a used one with a fair cost nonetheless it required three phase power and plenty of it. I'd to consider the additional expense of an electrician to wire it as much as the building's 208 volt 3-phase power. The enormous air compressor was so loud it could be heard all around the building and down the block nonetheless it powered those three sanders continuously. What's promising is so it covered itself in production efficiency very quickly.

Air sanders are aggressive and effective. They're lightweight when comparing to their lesser electric cousins. My sanders took in their mind immediately and production took off. I was as ecstatic because they were. Soon there is another machine  besides the air compressor that required having large levels of air obtainable in the shop: An Onsrud inverted pin router. It was also great to have the ability to blow sawdust from benches and machines while cleaning the shop by the end of the day. The compressor was also used to spray finishes on the completed furniture.

Years later, I built a smaller woodworking shop in my home which only required one air sander running at a time. For that shop, I purchased an air compressor half the size and isolated it in a soundproof room in one part of the shop. I ran ¾” galvanized pipe under the shop floor to three regulators at three different connection locations. The machine I purchased for that shop as a 5 HP Ingersoll Rand model with an 80 gallon tank. At the 80 PSI required by my Dynabrade sander, the compressor would produce enough air from morning to night. I must claim that that compressor was perfectly built. All I'd to accomplish was keep an eye on the oil level in the sight glass. Through the night, I'd turn fully off the master air valve privately of the air compressor , leaving the electricity on, to silence the compressor before the next work day.

I must believe that, having read this far, you have some curiosity about utilizing an air compressor to power air tools in your wood shop. Almost certainly, a 2-stage reciprocating air compressor will fill the wants of a tiny to medium shop. As a principle, a 5 HP air compressor will power one sander, a 7.5 HP machine will power two and a 10 HP machine will be necessary for three sanders.

How big is the compressor's air tank is an essential factor: The smaller the tank, the more usually the electrical motor will need to cycle on and off, This is hard on the motor and compressor pump over time and it uses more power. I could not purchase an MARK AIR COMPRESSOR used to operate an air sander with less than the usual 60 gallon tank and I'd feel much more comfortable with an 80 gallon tank.

The kind of electrical power required by an air compressor is another thing you may wish to think about. When you yourself have three-phase power offered at your shop location, fine. Three phase motors tend to utilize electricity much more conservatively than single-phase motors.Industrial-type air compressors will all require 3-phase power however the 5 HP models come either way. If you do not have 3-phase power available, you can produce it with a rotary or electronic phase converter as Used to do in my smaller shop. Whether you employ single or three phase power, you will be needing 230V AC power for single-phase motors and 208 to 220V AC for the three-phase type. Make sure you check the voltage and amperage requirements of any air compressor before you buy it. Electricians can be an expensive surprise.

A two-stage compressor pump is a must for an air compressorof this size. Two-stage air compressors have two cylinders, one larger compared to the other. Air is first drawn into the large cylinder where it is partially compressed and delivered to small cylinder for final compression into the tank. As air is compressed, heat is produced and so a great machine will will have a finned intercooler built in.

Compression not merely produces heat but squeezes water out of the air which eventually ends up in the tank. Tanks can rust internally over time and if this is simply not controlled, the  rusted air tank can eventually explode causing considerable damage and even death. That is why it is important to evacuate the tank of water regularly. Most air compressors come equipped with a drain valve at the lowest point of the tank. If you don't want to spray water all around the floor under the unit, you may want to consider piping it from the valve to a different place such as for instance under the floor or into a drain. Piped water will flow uphill into a drain as it will be pushed out of the tank by compressed air.

You will be needing a minumum of one regulator and a water trap in line ahead of the regulator. These are not costly. A regulator lets you set the right air pressure for the tool you will be using (say, 80 PSI) as opposed to tank pressure (say, 175 PSI).

Air output of a compressor is expressed in standard cubic feet per minute (SCFM) or simply cubic feet per minute (CFM). Not all 5 HP compressors released the same volume of air per minute. This can be a function not merely of motor horsepower but also the efficiency of the air compressor pump the motor is powering. The larger the CFM, the less your air compressor must cycle on and off to maintain with the demands you are wearing it.  A small compressor pump on an enormous tank will produce forget about air than on a tiny tank. The only difference will be in the number of times the compressor cycles on an off each hour and the time it requires to recompress the tank on each cycle. In the last analysis, you will need to look closely at SCFM (or CFM) significantly more than you do motor horsepower or tank size. Venting is the end product of any compressor and the CFM should be sufficient to the task at hand.

All reciprocating air compressors throw out some oil with the air they compress. When the tank reaches it's designed pressure limit, a move will interrupt electrical power to the motor. Simultaneously, a certain amount of oily air will be released into the shop environment. You might see oil collecting on the wall behind the compressor and on the pump and compressor as more than time. This is not reason for alarm but periodic cleaning may be needed.

Reciprocating (piston type) air compressors are noisy and this really is something you will need to anticipate for the sake of yourself, your workers and others who are in the neighborhood. If quiet is an essential consideration, you may want to consider spending the excess money for a screw-type air compressor. Screw-type compressors have no pistons or cylinders. Air is compressed in turbine fashion by way of a large metal screw, turning at a quite high speed. These machines just purr set alongside the reciprocating type but they are very costly. They sound more like a quiet jet engine than the usual loud truck motor.

I really hope these records has been helpful to you. Buying an air compressor for your woodworking shop can be quite a fairly expensive investment considering piping, regulators, hoses, water traps, wiring and electricians. You may wish to buy a compressor that is capable of the tasks you will be using it for but only that. Purchasing the wrong MARK AIR COMPRESSOR can be quite a extremely expensive mistake. My motivation in writing this has gone to provide you with the knowledge you will need to select the proper one.