9 best welder under $20.00
We picked 9 welder from AliExpress with real orders and good reviews. Prices go from $1.09 to $14.39, the average rating is 4.9 stars and the most popular one has 10k orders. Every product opens on AliExpress, where you pay with buyer protection.
Updated: 2026-11
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-63%1Roll 10M 18650 Battery Nickel Plated Strip Li-ion Connector 0.1mm 0.12mm 0.15mm 0.2mm Spot Welder Steel$2.61 $6.96★ 4.9 · 10k soldView on AliExpress → - 2
-64%Z99 Portable Spot Welder Kit, 12V, 99-Level Power Adjustable, 18650 Lithium-Ion Battery Spot Welder, Voltage$3.66 $10.25★ 4.9 · 6.4k soldView on AliExpress → - 3
-60%1Roll Nickel Plated Steel Strip Belt Spot Welding Machine Battery Welder for 18650 Li-ion Battery Nickel$2.61 $6.59★ 4.9 · 5.4k soldView on AliExpress → - 4
-68%Plastic Welding Staples 1000/500/200/100Pcs 4 Types 0.8mm Welding Nails Plastic Welder Repair Nails Kit$1.15 $3.58★ 4.8 · 4.2k soldView on AliExpress → - 5
-67%5M/Roll 99.9% T2 Copper Strip Strap For Energy Storage Spot Welder 18650 21700 Lithium Battery Connection$1.15 $3.46★ 4.9 · 3.5k soldView on AliExpress → - 6
-65%AC9-12V DIY NY-D01 Control Board 40A/100A Spot Welding Machine Control Board Welder Panel Adjust Time$14.23 $40.14★ 4.9 · 2k soldView on AliExpress → - 7
-30%10m/Roll 18650 Battery Nickel Plated Strip Li-ion Connector 0.1mm 0.12mm 0.15mm 0.2mm Spot Welder Steel Belt$2.36 $3.39★ 4.8 · 1.9k soldView on AliExpress → - 8
-62%Bumper Repair Torch Kit Plastic Welder Heat Stapler Soldering Iron EU 220V - Complete Bumper Repair Tool Set$14.39 $38.31★ 4.9 · 1.2k soldView on AliExpress → - 9
-87%500PCS Hot Stapler Staples For Plastic Welder 0.6/0.8mm Repair Standard Wave Staples Welding Bumper Car$1.09 $8.23★ 4.9 · 813 soldView on AliExpress →
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