Load limit switches

Charbel · Apr 16, 2014

Dear,

Client is asking load limit switches on the conveyors, they told me that they should be something similar to material limit switches. Has anybody used such limit switches located on top of the conveyor? If yes, i appreciate if i can get any datasheet for them.

thank you!

Charbel

James Mcquade · Apr 16, 2014

please explain you application a little better.

regards,
james

shooter · Apr 16, 2014

you can weigh the system with load cells, or you can use the motor current as a signal the belt is full.

TConnolly · Apr 16, 2014

loadcontrols.com

Charbel · Apr 17, 2014

Load Limit switch

Dear,

thank you for your answers, I asked for clarification: actually this load limit switch is positioned on a bar on top of conveyor which is used to shape the pile of the materials, and if any material hit the level switch, it will give an alarm indicating a high pile of material.

I appreciate if i can get any datasheet or catalog on this type of limit switch.

thank you!

charbel

duckman · Apr 17, 2014

Hi Charbel, this can just be a form of limit switch that gets hit by a plate set at the desired height above the conveyor load, and has to be reset when tripped, to restart the conveyor, unlike what people first thought from your post re a load limit, taken as a weight limit of the load on the conveyor.

Bit_Bucket_07 · Apr 17, 2014

Charbel said:
Dear,

Client is asking load limit switches on the conveyors, they told me that they should be something similar to material limit switches. Has anybody used such limit switches located on top of the conveyor? If yes, i appreciate if i can get any datasheet for them.

thank you!

Charbel

Material presence/overload detectors are fairly common. I've done this with mechanical paddles suspended above a conveyor that trip an ordinary limit switch and I've also used small ultrasonic devices with good results.

http://www.pepperl-fuchs.us/usa/en/classid_182.htm

Charbel · Apr 22, 2014

duckman said:
Hi Charbel, this can just be a form of limit switch that gets hit by a plate set at the desired height above the conveyor load, and has to be reset when tripped, to restart the conveyor, unlike what people first thought from your post re a load limit, taken as a weight limit of the load on the conveyor.

Dear Duckman,

thank you for your reply, this is what i was looking for. Actually now that i got clarification from the client on what he needs. Do you have catalog or datasheet on this type of limit switch by any chance?

kamenges · Apr 22, 2014

This isn't a specific type of limit switch. It is a general purpose device with mechanical mounting or specific location that will allow it to sense if the load on the conveyor is physically above a given height.
Said another way, your customer isn't asking for a specific device. Your customer is asking for a function. It is up to you to design a system that satisfies that function.

Keith

iant · Apr 23, 2014

This is very much application dependant.
You can have a limit switch designed to trigger when the conveyor belt physically drops lower than a specified point

What is it that the client needs

Load limit switches

Charbel

Member

James Mcquade

Member

shooter

Member

TConnolly

Lifetime Supporting Member

Charbel

Member

duckman

Member

Bit_Bucket_07

Member

Charbel

Member

kamenges

Member

iant

Lifetime Supporting Member + Moderator

Similar Topics