Who makes complete OEM steel track undercarriage systems?

[Gamma]

I've spent several hours on the internet with Google trying to find companies that manufacture complete OEM steel track undercarriage systems. I did find that Caterpillar offers OEM undercarriages and also a company in the UK, but other than that, no one else.

Know of any others here in the USA?

[Iron Horse]

Ive also been looking for one to build a PTO tracked mulcher . Found a few on China Manufacturing Manufacturers in China Product Sourcing Suppliers Export Import . You may find an onseller in the sates if you have a look . If you have the same thing as me in mind , remember that they are rigid and not walking type track frames and will have difficulty in uneven terrain .

[QwikDraw]

Berco

[Gamma]

Berco

QwikDraw,

Oh, I forgot to mention that I found Berco too, but their website simply has nothing but a picture of a track system and a short mention that they build them. I couldn't find any link to any kind of catalog or further information on their track systems. I'm not to the point that I want to call them either, I just want some general information.

[QwikDraw]

I think I remember being told that Supertrak uses Berco for the steel tracks on the Cat 140...I think that's right.