How Can I Remove the Aluminum Scraps From Cut Profiles?

A water jet will leave no scraps or burrs. Not the most practical way to cut extrusions, but that wasn't the question.

Laser cutting also would leave no burrs.

Plasma cutting.

Compressed air may be cheaper than any of these, but that wasn't asked, either.

There is no free lunch.

You do not say what your cutting process is. Milling, Turning, Grinding, etc. First thought is that chip control from cutting can always be altered in the machining program....speeds and feeds. There are also various designs of chip-breaker tools that can be used. Lastly, is there sufficient coolant flow to help with the evacuation of chips from the work surface?

The cutting process is almost certainly grinding, given the problem incurred. That's my bet.

Wonder if the OP will let us know?

Scrap is the unusable length of the extrusion. I do not see that getting inside. Cuttings is the material which a cutting tool removes. Least cost effective method I have found is with air.

We cut various aluminum shapes with little problems with chips clinging to the the aluminum. What is the type of saw and it's coolant system? Whats the damage?

It's that language thing.

I doubt the Op will find a cheaper way to blow off burrs and swarf.

While we are cutting rectangular shape like as 30x30 mm box profile, scraps are going into profile. If these scraps are not removed with air, scraps will move other departmant (I loose aluminium, input and output should be same as kg) and aluminium scraps scratch the profile surface at heat treatment at aging oven (heated air wind rounds on profiles with powerfull motors). We use round saw is called finishing saw (we have vacuum medium at saw but it can not suck enough). There is an automatic lubrication system which lubricates teeth of saw.

Thank you very much for your reply.

How does the 30X30 piece of scrap fit into a 30X30 cut piece?

From the other info you provided I recommend you out source help. Both the saw and lubrication equipment have make, model and serial number. Which would have been better then it's round or finishing or automatic. A hole saw is round. There are many states of finishing. And automatic could be a drip lubricator that opens a valve to let it drip when the saw is turn on.

We can extrude the aluminium as 40 meters. Then we cut it as 6 meters and load them into the basket. While they are being cut, small burrs (scraps) occurs which go inside profile. burr dimension is about 2-3 mm.

After cutting to 6 meters, store vertically on vibrating perforated plate. Ocassionally collect loosened aluminum chips from the collection tray under the plate.

At the end of your cutting table set up device to blow air down it after it's cut. A shoe that seals to the end that when pushed upon will blow air down the tube and clear it.

Since you probably need to remove the saw lube as well as cuttings (scrap) before the profile is sent to the next department, why not try something novel such as carbon dioxide ice blasting? This does not take as much dry ice as one might initially think. Of course, certain precautions in the workplace apply, such as proper ventilation.

I understand that dry ice blasting produces extremely clean metal surfaces.

USE VACUUM EXTRACTION WHILE CUTTING AND USE "EXAIR" PRODUCTS TO CLEAN UP PROFILE INTERNALS

SAM

I know nothing about the process you are using. But I tend to like to look at things in the simplest terms.
Without having completely re-design or to buy new cutting equipment. Is there any way you change the cutting process or angle where the majority of the scraps would fall into a bin underneath the cutting area? The majority of them would probably fall by gravity. Then a combination of air and a brush of some sort for the smaller pieces.
An angle would probably be best that way the cutters aren't directly in the path of the falling scrap.

Forty years ago I worked for a company who made electronic heat sinks from extruded aluminum and we designed a machine for de-burring the cuts and removing chips. The machine was similar to a table saw which was fitted with a rotating wire brush that was approximately 3 inches in diameter and six inches long. The cut pieces of extrusion were placed on a sliding table and pushed over the brush assembly. The cut ends were de-burred and cleaned.