The right compressed air solution for every application
From the smallest jobs right up to large manufacturing applications, air compressors play an important part in industry.
The 6 things you should consider when buying an air compressor
When you are considering buying a compressor, there are many options and it can all seem very confusing, so we have put a quick guide together to help you.
Below are 6 basic guidelines to help you unravel the mystery.
1. Work out how much compressed air you require
Define the tools you will use to determine the total air delivery that you will need. It is referred to as your Free Air Delivery requirement (FAD). In Australia FAD is most often expressed in CFM (cubic feet per minute) and less often L/sec (Litres per second) or L/min (Litres per minute) To select the right compressor, you need to know the total CFM, L/sec or L/min of all your individual air tools that you are going to use at once. Add an additional margin of 25% to cover inefficiencies in your air system and for future growth. FAD is a very important part of selecting the correct compressor.
2. Select the TYPE or STYLE or Compressor you will need
Once you have defined the FAD then you can check if you need a piston or rotary screw compressor. As a general rule, if your usage is low to intermittent and below 50CFM then a piston compressor will most likely be adequate for your needs. If you place a high demand on your compressor and compressed air is used constantly in your workshop then a rotary screw compressor is most likely to suit your needs. Compressors that are driven with petrol and diesel motors are available if you need your compressor to be mobile.
3. Work out the electrical supply for the size of compressor
Single phase compressors are limited to around 16-18CFM (FAD) and use lower amounts of electricity. Once your FAD demand is higher than 16-18CFM you will need to use a three phase compressor. If you have not got access to three phase power then you may need to consider reducing your demand (FAD) or choosing a petrol or diesel driven compressor instead. The size of the electric motor on the compressor is determined by the size of compressor that you select, your electrician will be able to advise you on the electrical supply that you need for the compressor based on this information.
4. Define the comfort you need in terms of noise level
If you place your compressor outside or in a separate compressor room and run air piping into your workshop, there are less requirements considering the compressor noise level. If you want to position your compressor inside your workshop or close to your working area then noise will become an issue for you. Silenced piston compressors and rotary screw compressors emit lower noise than standard piston compressors.
5. Control the air quality
Air quality plays a large part in the life of your air tools and equipment, if you supply your air system with clean, dry compressed air then you will prolong the life of your air tools and equipment. Refrigerated air dryers and filters help deliver clean dry air to your compressed air tooling and equipment.
6. Check the brand quality, ease of maintenance, parts and service availability
This is where paying a little more upfront really pays off in the long run. For the best return on your compressor investment, buy based on quality rather than price. Look for guarantees, warranty, consider build quality and ongoing support for parts or service so you can enjoy a long, safe and efficient life from your compressor. Check serviceability of the device, service intervals and if easy access to parts and services is guaranteed.
If you want to verify your choice, our team is ready to support you with their professional advice on compressors.
HDR Workshop Solutions will work with you to keep your business running just the way you want it. If you aren’t sure on the size of compressor that you need or if you need help choosing a new compressor or fixing an existing compressor, please contact the great team at HDR Workshop Solutions.