We got your RFQ for the heavy-duty welding torch with the mixer, and we can confirm the 2W1121 is what you'll want for that kind of work—it's the Australian-type body with a built-in mixer, so you're not messing around with external parts.

The brass body handles heat pretty well, and with the balanced pressrue design, you get consistent gas flow whether you're running acetylene or propane—just swap the nozzle and you're good to go, though the 5/8-18N thread is standard for most industiral setups, so check your hose compatibility if you're running something odd.

Maximum welding thickness goes past 15mm with a single flame, but don't expect to push that limit on thin-gauge sheet metal without some warping—it's a heavy-duty torch, not a fine-detail tool.
We usually stock these with both nozzle types, but confirm lead time if you need a specific one, because the propane nozzle has a slightly different orifice size than the acetylene, and we've seen buyers grab the wrong one by accident (usually 2-4 weeks if our company have to order them separately).

ISO9001 certifcation is on the COA, and the mixer is already integrated into the body, so what it does is save you from having to buy a separate mixing unit—basically, it's ready to weld out of the box with standard LPG or natural gas too, if that's what you're running.

100 units or so is our standard MOQ for this model, but we can do a smaller trial run if you need to test fit on your rig first—just let us know the quantty and whether you want it with 5/8-18N or a different thread adapter.
It can weld materials thicker than 15mm, so it's built for heavy-duty industrial jobs.
It works with both acetylene and propane, plus LPG and natural gas — just swap the nozzle.
It uses a 5/8-18N thread, which is standard for many industrial setups.
Yes, the mixer is built in — it's a balanced pressure type, so you're ready to go out of the box.
Absolutely — the torch is ISO9001 certified, and we can supply the documentation on request.