| What type of material
can be run? |
All types, although our
experience has shown that some materials work better than others.
Aluminum, brass, and beryllium copper are all very good materials
for the sPINner We have also had good success with hard plastics,
stainless steels, and titanium, although with stainless and
titanium the burr thickness at root must be thin enough for
the burr to be removed instead of rolled as these materials
are more pliable than some other materials. |
| What about magnetic materials? |
While magnetic materials will work in the
sPINner, there are several limitations to be aware of. First,
magnetic parts will "stick" to the bottom of the container.
This means only one layer of parts can be run at a time. Also,
because the pins will tend to stick to the parts, ID burrs in
magnetic parts will not be good candidates. This is not to say
that magnetic parts will not work in the sPINner. |
| What kind of burr can
the sPINner remove? |
Short answer: a light
burr. Rule of thumb: if you can take a fingernail and remove
a burr, the part has a good chance of being processed well
in the sPINner. Burrs heavier than this will tend to roll
and flatten, but not be removed during the process. While
this is not universally true, it should give you some idea
of what to expect.
But you don't have to guess. We'll be glad to run some of
your parts as a test before you make any purchase decision.
Just give us a call to make arrangements. |
| Will my steel parts (ferrous material)
become magnetic? |
No. The principal of demagnetizing is switching
north to south poles very quickly and this is how the machine
makes the pins jump up and down. The parts will be completely
demagnetized after machining. |
| How large of a part
can be done? |
The size of parts to be
deburred are only limited by the size of machine used. The smallest
machine has a tank size of 6" x 6" while the largest
is 24" x 23", so the longest part that can be done
is limited to the size of the bucket that is inserted in the
tank. |
| How many parts can I run at one time?
|
This question can only be truly answered
by running the parts. We always start by lining the bottom of
the bucket with the parts and add parts while the machine is
running. We stop adding parts when the agitation begins to diminish.
|
| How does the sPINner
effect external threads and/or critical tolerances? |
The sPINner will not damage
threads. In fact, by choosing a media size that fits within
the thread pitch the sPINner will help deburr threaded areas.
Also, the sPINner will not effect any critical tolerances of
a part, as this process does not grind or cut at a part. Very
tight tolerances can be maintained. |
| Will the sPINner give an edge break? |
The sPINner will break all the edges of a
part. The amount of radius depends on the cycle time and media
size. Larger media and longer cycle times will produce more
of an edge break. |
| Will the sPINner polish
a part? |
Yes. The amount of polish
and the surface finish will depend on the material being run,
the media size, and the cycle time. |
| Should parts be clean before being put
in the sPINner? |
The cleaner the parts, the less frequently
the solution will need to be changed and the brighter the parts
will be after processing. |
| How are the parts separated
from the media after processing? |
Two different methods
depending on the size of the machine.
For model EHD-728 and smaller, a strainer is used to separate
the parts from the media. The strainer is placed in the well
of the machine while in operation. The media is pulled through
the strainer by the magnets leaving the parts in the strainer.
This process takes about 5-10 minutes.
For the larger machines, a sifting unit is used. This process
takes about 10-15 seconds to separate the parts from the media. |
| Will any of the material from the media
become imbedded in the material of the parts being run? |
No. We have conducted several studies on
many different materials to insure no material from the media
becomes impregnated in the parts. |
| Does media become lodged
in blind holes? |
No. The unique magnetic
process helps push the media into blind holes and also pulls
the media back out. The result is no jamming or lodging of media. |
| What solution is used in the sPINner? |
Various compounds may be used to handle a
variety of materials and to achieve a variety of results. For
most nonferrous materials and stainless parts, a soap and water
mixture is used. For ferrous parts where rust and oxidation
are concerns, a number of compounds can be used with rust inhibitors. |
| How often does the
solution need to be changed? |
The solution can be used
until the parts no longer come out clean after processing. |
| Can the sPINner be operated without any
solution? |
Yes. However there are several factors to
consider. During operation the media will build up heat. Normally
the solution acts to help cool the media. In the absence of
solution, the machine should be operated only for short cycle
times (less than 10 minutes). The action of the media is more
aggressive without solution. Due to the heat buildup, the media
will need to cool for several minutes after a cycle. Also, the
media will need to be cleaned about every 3 hours as it will
become dirty. |
| What is the media made
of? |
Stainless steel hardened
to 30 Rockwell C. |
| How long will the media last? |
Approximately 2-5 years depending on the
material being deburred. |
