Does a coil cover weaken coil signal?

[pvtcook]

I know this sounds dumb but do you think that a coil cover effects depth?

 

[Elton]

If you do not remove and clean out the cover from time to time.

 

[NE Digger]

or whatever the thickness of the cover is.
Elton is right on, especially if you hunt a beach that has black sand. It will get in, and it will affect performance. You should remove it and clean it often. I don't ever use coil covers. don't really see the need. Coils are pretty dang tough, and you'd have to do a lot of hard scrubbing to wear one out.

 

[pvtcook]

Digger kind of what I thought but when you pay a grand for one what's a extra $20 lol.

 

[MarkCZ]

Digger kind of what I thought but when you pay a grand for one what's a extra $20 lol.

Coil covers came about in the early days, the coil of wire was sealed between to plastic shells, many called these "Box Coils" and they were hollow so it was possible to crack, or wear through the bottom of the coil. To solve the problem coil covers came to be, wear out a cover, just replace it.

Things have change in most manufacturing of search coils, the more modern coils only use the upper halve of the shell and the lay the wire windings in the upper most part of that and hot glue them in place. While its still upside down they resin fill it. In this design there isn't a plastic shell for a bottom to wear through, but rather over a 1/4" thickness of resin. So, the upper halve of the shell is also a mold.

Now, some still buy the coil covers because its something they have always done,
Others buy the cover to just help keep the coil in a less used looking condition, it does help on the resale of the detector for it to be in as pristine condition as possible.
Some buy the covers because they believe that it protects the bottom edges of the upper shell from getting cracked or chipped off.

Whatever the reason is for people to buy them I'm sure the sales are helping to support the manufacture's and that's a good thing!

Some have gotten creative by removing the cover, taping the outer edges of the upper shell and covering the bottom's of the coils with that spray-on truck bed liner. These protects the bottom surface of the coil, gets rid of the need to remove and clean the coil covers.

The picture below is a detector manufacture worker pouring in the resin on a assembly line for their coils. (Not First Texas Products)

Mark

 

[2 Much Trash]

Doesn't sound like a dumb question to me at all. I've had the same concern for 40 years. So I never got one. But I'm not a coil scrubber. Some folks are so it may be a good thing to have.

 

[Charlie P. (NY)]

Depends on your soil as well. I hunt where there are a lot of rocks with a fast sweep and a good hit can chip out flakes of the resin. I use coil covers but remove and clean them annually.

 

[mudpuppy]

I've been slinging the 11"dd on my F70 pretty hard and fast for going on 5yrs without a coil cover with no ill effects...and boys, I really mean really slinging it and banging it around pretty hard from snow to sand, woods to totlots...epoxy fill mfg method is pretty danged strong...
Mud

 

[Beyonder]

Seriously?

 

[chuck ky]

but if you don't scrub the ground you could lose more depth than the cover would lose. I wore out the coil on a cz-5 and I wore out the coil cover on a whites

 

[2 Much Trash]

but if you don't scrub the ground you could lose more depth than the cover would lose. I wore out the coil on a cz-5 and I wore out the coil cover on a whites

That is a true statement..

 

[amberjack]

I am a scrubber and like scrubber covers now when I was young scrubber meant something else but now it means something else and now I forgot what I was talking about

AJ