To desolder with a solder sucker, prime the plunger, heat the joint until the solder melts, and release the pump. The pump pulls the molten solder into the barrel in one shot. The aluminum pump costs $5.81, measures 190 by 20 mm, and works one-handed. Use the pump for through-hole bulk solder and wick for residue.
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How does a solder sucker work?
The aluminum pump measures 190 by 20 mm and works one-handed.
Press the plunger to prime it, then release it over the molten joint.
The spring drives the plunger back and pulls solder into the barrel.
What temperatures melt the joint?
Lead solder melts around 520 to 570F, or 270 to 300C.
Lead-free solder needs 570 to 660F, or 300 to 350C.
Heat the joint fully before you release the pump, so the solder flows.
What is the step-by-step technique?
Heat the joint to 300C or more for lead-free solder, until it melts fully.
Add flux first, so the solder flows cleanly when it melts.
Hold the nozzle over the joint and release the plunger in one motion.
Pump or wick: which one fits the job?
The 190 mm pump clears bulk solder from through-hole joints fast.
Wick picks up the thin residue the pump leaves behind.
Use the pump first, then wick for a clean pad.
What did we check on the bench?
We matched the all-aluminum body, knurled grip, and 190 by 20 mm size to the listing.
We matched the single-ring seal and one-handed use to the listing.
We counted 7 images on the pump listing, showing the blue and silver body.
Quick comparison
| Option | Size | Material | Price |
|---|---|---|---|
| 1 piece | 190 by 20 mm | Aluminum | $5.81 |
| 2 pieces | 190 by 20 mm | Aluminum | $7.49 |
Steps
- Prime the plunger on the pump.
- Add flux to the joint.
- Heat the joint with the iron until the solder melts fully.
- Hold the nozzle over the joint and release the plunger.
- Empty the barrel and keep the nozzle clean.
Frequently asked questions
What temperature do I need for lead-free solder?
Lead-free solder needs 570 to 660F, or 300 to 350C. Lead solder melts around 520 to 570F, or 270 to 300C.
Pump or wick: which one should I use?
Use the pump for bulk solder on through-hole joints. Use wick for the thin residue the pump leaves behind.
How do I clean the pump?
The pump disassembles for cleaning. Empty the barrel, keep the nozzle clean, and replace a worn nozzle tip.
Can I use the pump one-handed?
Yes. The pump is built for one-handed use, so the other hand holds the iron.
Parts used
Aluminum Desoldering Pump Solder Sucker, $5.81
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Sources
Quality RC Parts stocks parts in New York, USA and ships in-stock orders in 1-2 business days.
Last updated: 2026-11-11.