BLOG

We do not only share our inventory with you , we also share market information and intelligence with you.
Read our articles and should you have any questions please feel free to contact us by clicking          HERE

Do I need an air receiver tank with my air compressor?

Why should you dry compressed air ?

WHEN IS THE RIGHT TIME TO SELL YOUR MACHINES

MAKING MONEY WITH YOUR OLD MACHINES

=====================================================================

Do I need an air receiver tank with my air compressor? 

The size of the compressor tank, usually measured in liter or m³, should be determined
by the overall type of usage.

If the usage is in short quick concentrated bursts, such as an air nailer, then a small tank
size can be used. If the unit is to sustain long periods of usage, such as a board sander,
impact wrench or sandblasting work, a larger tank size will be necessary.
Often it is a combination of those two types of usage, therefor take the larger air
receiver. This will also have a positive influence on the compressor start/stop or
modulation control.

As a rule of thumb you might use the maximum capacity in ltr/min devided by 2 will
result in possible air receiver size.
For example air compressor capacity is 400 ltr/min, air receiver size is 400/2=200 ltr.

This can vary by type of application , feel free to call us for more advise +32 56 61 67 01
or send an email to sales@machineryresale.be

=====================================================================

Why should you dry compressed air ?

The term for the amount of water vapor in air is called humidity.
Just to be clear, “humid air” is not the same as “moist air” which in fact is a mixture of water vapor and other substances of particles in the  air.
Humidity is defined in terms of the water part of this mixture, it is called the Absolute humidity. It is commonly referred to as relative humidity, expressed as a % (like on household humidistats) It is called relative because it measures the absolute humidity relative to the maximum.  Imagine a cube of 1meter by 1 meter by 1 meter,  filled with air. The temperature is 16° Celsius, and the weather is fair. That cube contains one cubic meter of air, which also is saturated with water vapor.

Let’s say you have an air compressor in your company and you need air at 7 bar toyou’re your equipment or air tools. Your air compressor will suck almost 8 times (7.8) the cubic meter of air into the compressor to produce 1 cubic meter of air at 7 bar.  Of course, it will also suck in all the water vapor contained in those 8 cubic meters.

A funny fact about air is that, when it is compressed, it will still hold the same amount of water vapor found in the free air at atmospheric pressure.  That means, in that cubic meter of compressed air at 7 bar, there is 7.8  times as much water vapor than  the air can hold.  The rest condensates into liquid water, and gravity causes it to settle in the lowest and or coldest points of your air system.

The liquid water can be drained out of the system where it first occurs, but as the compressed air is further distributed to points of use, more water is condensed to liquid as the air is further cooled. This condensate dissolves contaminants as it passes through air lines, and forms corrosive residue in the air piping system, as well as air tools. This residue can also clog filters and small passages in air-operated devices.

The end results of water in compressed air systems are production downtime, excessive maintenance requirements, premature equipment failure/replacement, all leading to costly repairs. Elimination of water in compressed air systems is easily achievable with proper equipment. 

For assistance in correctly sizing the right air dryer , you can call our experts (+32 56616701) [email]
We have refrigerated air dryers (both thermal mass and direct expansion types), desiccant air dryers in our second hand stock. See our current stock in the section “dryers and accessories”
www.machineryresale.be/dryers-accesories?

===============================================

WHEN IS THE RIGHT TIME TO SELL YOUR MACHINES

I would like to comment on the consequences of certain scenarios .

Waiting to sell old machines will depreciate the price realization, meaning , you get less money for older machines. Some people would say, “these older machines are written down to a minimum, they are not costing me money and even with low utilization , I can make money with them”

True and not true.
True, these old machines generate cash flow
Not true, the likeliness of repairs even major repair need to be considered.
Low utilization and small turnover will be absorbed easily by unexpected repairs.
Also think of the negative impact on your company image and branding when operating old fleet.
Customer are willing to pay more for younger machines.

Selling machine too young is a difficult thing and takes a lot of effort from your organization.
Why? Because you need to realize a certain price level, to reach this price level it takes specific customers. To find these customers cost a lot of marketing , energy and the question is will that pay off in the end.

Logically speaking don’t sell to young , don’t sell to old. “Yeah! We could figure this out ourselves”, you would say. Correct, and there for I would like to give some examples from the market and from experience

In terms of years/life of the equipment it also depends on what type of equipment is it. Is it the type that has a rough life. For example a skid steer loader in a demolition application has had it best breath the first 3 years of its life. These 3 years it is usually also covered under manufacturer’s warranty. You could risk another 4^th year but the advice is to sell it before it turn the age op 5.

The same counts for generators when they are in high utilization applications. It can run 2000 or more hours per annum. That means 8000 to 10000 hours in 4 to 5 years. A normal criteria for overhaul is the hours on the engine life, which could well be 14000. When the machine is below 10000 hours it still has a certain value in the used equipment market because it can be used another few years with lower utilization (second life)

Are we talking about a portable air compressor it is again a different story.
Portable compressors usually run 500 or less hours a year for small machines (less than 10 m3 per minute or 380 cfm) and less than a 1000 hours for the bigger machines. Technically speaking these machine will have a 12 to 16 years life in front of them. Commercially speaking this type of equipment should not be older than 8 to 10 years to still bring good money.

I can give more examples or zoom in on specific market or fleet examples.
Are you in doubt of specific equipment you can always give me a call or contact me via email.

Selling your machine ? --> http://www.machineryresale.be/like_to_sell.php

======================================================

MAKING MONEY WITH YOUR OLD MACHINES

The capital within an equipment rental fleet is in my opinion, a "hidden treasure" of possibilities. By looking at the fleet from a different prospective, I see something else then just machines. I see a Remarketing opportunity beyond your belief. A fleet reorganization, selling old machines, will bring in more money that you can use for reinvestment in equipment, additional profit or to pay for your other investments.

But not just selling your old (intensive care) machinery is possible. Also machines that have (too) low utilisation, are eligible to sell second hand (desinvestment). Machines with little or no utilisation just costs money. Your machines are older and less valuable so they should be written off without any benefits in return. By selling them you avoid obsolescence and generate cash flow.

Often, you will have in your fleet machines that came in from a merger or acquisition. Problem is that there are many different brands of the same type of machines in your fleet. That brings more complexity in your maintenance program and result in higher parts inventory and higher cost. Restrict the number of brands is the advice. "And the rest?", desinvest !, so sell your second-hand equipment and make money! You can earn a lot of money for your company as owner or fleet manager.