Roller Chain Breaker?

[BrooklynBravest]

Anyone made or have a bench top roller chain breaker?

I have to make custom sized #40 roller chains fairly frequently and using the little $15 hand one is awful.

I found one made by USA chain but it’s $600.

Was interested in maybe a homemade one or something.

https://www.usarollerchain.com/Stati.../b-cb-base.htm

[M J D]

The Smith Tool, chain a part one works really well. Be sure to check sizes as they make a few different models.

[M J D]

I see your looking for bench top, the one I described can be mounted in a vise and using a cordless impact would be fairly quick.

[thegary]

I don't do that many so I just use the hand held one. I could see if you were doing a lot of chain breaking it would be agrivating.

[rexcormack]

I just grind the "heads off and knock them apart with a punch.
Not ideal either!

[Meltedmetal]

I have ones like this and they are easy to use and quick.
https://www.ebay.com/itm/Chain-Break...8AAOSwrItfKMF6

[tapwelder]

Should+ you decide to make your own. If screw style, then a bearing in the shaft helps a lot. Minimizing friction and reducing the pin from walking.

A impact wrench is a good idea.

Are you reusing the links/pins.?

[BrooklynBravest]

I have the little hand one and its a pain...

I am not reusing.

[tapwelder]

Perhaps a impact wrench is not the best idea. Just from a potential shattering of the extraction pin. I have bent cheap ones, due to miss alignment and walking of the pin. bent pins wont align, either. What issue are you having?

[farmersammm]

I just grind the "heads off and knock them apart with a punch.
Not ideal either!

Same here. Most of the time I'm discarding the link, so grinding isn't a big deal. You put it all back together with a repair/connector link anyways (shrug)

[farmersammm]

Looked at the video. Pretty cool tool. Good for saving time. It takes a 5 minute job, and does it in seconds.

Doesn't do anything a grinder won't do. Still gotta put it back together with a repair link.

[acourtjester]

vice grips to hold the chain and angle grinder to remove the heads and pop them apart.

[BrooklynBravest]

Think I’m gonna design my own tomorrow...


Plasma cut holding plate to catch the chain. And just copy their die.

Make it work by impact gun under screw force so i don’t have to design a lever system. Small die springs to return it.

[ronsii]

Think I’m gonna design my own tomorrow...


Plasma cut holding plate to catch the chain. And just copy their die.

Make it work by impact gun under screw force so i don’t have to design a lever system. Small die springs to return it.

Cool!!! post it up when you get it done and working

I don't do too many... but every now and then it's usually a grinder job.

[Oldendum]

vice grips to hold the chain and angle grinder to remove the heads and pop them apart.

I used to grind them off just below flush on a bench grinder, then tap out with a punch. No pliers required.