The Dexprosy magnetic welding ground clamp is a small magnet-base clamp that holds your work lead on steel without a spring jaw. The Amazon listing gives its size as 2 x 2 x 2 inches and its weight as 7.4 ounces. The key question before buying is its current rating: the details we found do not state an amp rating, so match it to your welder before you rely on it.
Dexprosy magnetic welding ground clamp at a glance
| Spec | Detail |
|---|---|
| Product | Dexprosy magnetic welding ground clamp |
| Size | 2 x 2 x 2 inches (per the listing) |
| Weight | 7.4 ounces (per the listing) |
| Attachment | Magnet base for steel and other ferrous surfaces |
| Amp rating | Not stated in the details checked; confirm on the listing or packaging |
| Warranty | Not stated in the details checked |
How a magnetic ground clamp works
A magnetic ground clamp lets you stick the work lead to a steel table, column or workpiece without positioning a spring clamp. It saves time on fixtures and odd shapes. The trade-off is contact quality: the magnet only carries the current well when the face sits flat against clean, bare steel.
That matters because a poor ground makes the arc unstable, causes spatter and can heat the clamp. If your welds suddenly get erratic, check the ground before you change settings. For placement advice, see where to place the ground clamp when welding a car.
How to use it
- Clean the contact spot to bare metal. Rust, paint, mill scale and oil cut the hold and the current path.
- Set the clamp flat on a ferrous surface, as close to the weld as practical.
- Attach the work lead securely to the clamp according to the product instructions.
- Tug-test the clamp and cable before striking an arc.
- Check the clamp now and then during long sessions. If it feels hot, stop and let it cool, because heat weakens magnets and can damage the clamp.
Limits to check before you buy
- Current rating: Not stated in the details checked. A clamp that is too small for your amperage can overheat. Compare it with your welder’s output.
- Material: It only grips ferrous metal, so it will not hold on aluminum, copper or stainless grades that are not magnetic.
- Surface: Curved, rough, rusty or painted surfaces reduce contact. Use a spring clamp when you cannot get a flat, clean contact.
- Movement: Heavy vibration or a bumped lead can knock a magnet loose and break the ground.
- Not hands-on tested for this article; the size and weight come from the listing.
Who should buy it
Buy it as a convenient second ground for light to moderate welding on steel tables and fixtures. Skip it as your only ground for high-amperage work unless the listing states a rating that covers your welder. If you want ratings printed in the product details, compare it with the 200A magnetic welding ground clamp and the 500 amp magnetic welding ground clamp reviews.
Frequently Asked Questions
How much weight can the Dexprosy clamp hold?
The details we checked do not give a pull or hold rating. Do not use it to hang or lift anything; it is only meant to carry the work lead.
Can it be used on aluminum or copper?
No. A magnet only holds on ferrous metal. For aluminum, attach a regular clamp or bolt the ground to the work.
Can I use it outdoors?
Keep it dry and wipe off moisture and grit. The listing details we checked do not state weather resistance.
How do I clean and maintain it?
Wipe grit and spatter off the magnet face, keep the cable connection tight and inspect it for burns or damage before each job.
What amp rating does it have?
Not stated in the details we checked. Confirm the rating on the Amazon listing or packaging before using it with your welder.
Bottom line
The Dexprosy magnetic welding ground clamp is a compact, convenient ground for steel work, but its size is small and no amp rating was found. Treat it as a light-duty or backup ground until you have confirmed the rating.
