Latching Solenoid

[PuG]

Evening, quick question on the off chance - I'm trying to find where I can get heavy duty agricultural type latching solenoids that will be good enough for a swing trap holding about 200kg's. Plenty of them for house doors etc online but not really finding anything bigger. Its to go on a sprung closed opening gate.

Cheers, James

 

[tinman]

if im taking you up right, i had a similar issue here where i wanted a pair of them to lock a door closed, after some searching for an affordable option i came to the conclusion that the best option was to buy a pair of solenoids with a decent latching force and make up a linkage of my own that was strong and let the solenoid do the push pull work.
the solenoids are here but the project is still in the pipeline.
none that i looked at were very strong, they seem to all be made light enough round their frame.

 

[Pheasant Surprise]

Evening, quick question on the off chance - I'm trying to find where I can get heavy duty agricultural type latching solenoids that will be good enough for a swing trap holding about 200kg's. Plenty of them for house doors etc online but not really finding anything bigger. Its to go on a sprung closed opening gate.

Cheers, James

Did you mean a shoot bolt style solenoid or a magnetic latch style?

 

[Pheasant Surprise]

External heavy duty magnetic solenoid latch here in stainless, good for 500kg. Any good?

 

[PuG]

Morning, thanks for the replies! I was looking for a shoot bolt style that would be sprung loaded so when the door closed it would re-lock and the solenoid just needs to pull to release. For some reason I thought I had seen and imagined something like it was readily available..

I took a look at the magnetic solenoid, thank you, its not really right for what I want.

if im taking you up right, i had a similar issue here where i wanted a pair of them to lock a door closed, after some searching for an affordable option i came to the conclusion that the best option was to buy a pair of solenoids with a decent latching force and make up a linkage of my own that was strong and let the solenoid do the push pull work.
the solenoids are here but the project is still in the pipeline.
none that i looked at were very strong, they seem to all be made light enough round their frame.

RS online have got a selection, (https://uk.rs-online.com/web/c/automation-control-gear/solenoids/)

Something like might do what I need:
https://uk.rs-online.com/web/p/tubular-solenoid/4317598/

But yes it might be easier to make up linkage like yourself tinman. I don't know how much 12NM relates to in strength to open the gate when a bale is resting on it. Comes back to its probably just as easy to use hydraulic rams but I was trying to avoid pipe work to snag.

Bit expensive but allot more power: https://uk.rs-online.com/web/p/dc-d-frame-solenoid/3073590/

Cheers,

 

[Pheasant Surprise]

Some other shoot bolt type gate solenoids here for comparison:

UK lock specialist:
https://www.locksonline.co.uk/EB165-Surface-Mount-Electric-Solenoid-Bolt-Lock-with-LED.html

China sourced cheapie:
https://ebay.us/cJfjpn

 

[tinman]

12Nm is equal to about 1.25 kgm, or 1kg is = to 9.8Nm whichever way you look at it.
So basically damn all..

You could use the likes of a small hyd power pack and a ram, be a dearer option but a lot stronger, like a trailer tipping unit.

What is it you want to do exactly if you don't mind me asking.

 

[PuG]

I think hydraulic is the way in which case with two small rams, I can run the pipes. Bale sledge, allot of our fields are pretty steep and I end up having to abandon the row and drive some distance to eject. Normally such light cropping if I can keep one behind me then I inevitably end up somewhere I can drop it off. Nothing exciting just would have been nice using simple sprung trap that self resets. Obviously I could use linkage for reduction on the pulling solenoid but rapidly gets complicated to fabricate

 

[Blue.]

New Holland foragers had a solenoid on the metal detector that would probably work.

My brother bought a very strong pull solenoid recently to go on his electric gate,he’s the same problem as me when people force the gate open.

External heavy duty magnetic solenoid latch here in stainless, good for 500kg. Any good?

Lasted about 6 months on my gate,I wouldn’t rushing for another.

 

[tinman]

I think hydraulic is the way in which case with two small rams, I can run the pipes. Bale sledge, allot of our fields are pretty steep and I end up having to abandon the row and drive some distance to eject. Normally such light cropping if I can keep one behind me then I inevitably end up somewhere I can drop it off. Nothing exciting just would have been nice using simple sprung trap that self resets. Obviously I could use linkage for reduction on the pulling solenoid but rapidly gets complicated to fabricate

so if its pixies were using its going to have to be a 12v unit then so, going by that i suspect your options just got horrid limited.
in the case of a bale sleigh hyd pipe/s will be a lot more forgiving than an electrical cable.