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Blue and black spring-loaded desoldering pump, 11.25 inches long

Weller

Weller Desoldering Pump 11.25 In L 4.5 In W

SKU CH-R4P7-MEGWC

Spring-loaded desoldering pump with ESD-safe tip for precise printed-circuit repair and cleaning

  • Product typeSolders & Supplies
  • Spring-loaded plunger enables rapid one-handed desoldering
  • 1 fl oz capacity clears solder joints in a single stroke
  • 125 in tip ID reaches tight through-hole pads
  • ESD-safe construction protects sensitive components
  • 25 in length gives comfortable leverage for bench work

Purpose & User

This Weller desoldering pump is a hand-operated tool for removing molten solder from printed circuit boards. It suits technicians, hobbyists and repair shops that need a reliable way to clear joints during rework or component replacement.

Thermals, Noise & Power

The spring-loaded plunger requires no electricity, so it produces no heat, no fan noise and draws zero power. Operation is entirely mechanical, keeping the work area quiet and eliminating any thermal load on sensitive components.

Accessories & Software Impact

The blue and black body houses a tip with a 0.125 in inside diameter and 0.25 in outside diameter, while the barrel holds 1 fl oz of solder. The tool is ESD safe, protecting static-sensitive parts during use. No software or additional accessories are included.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 66% of the 802 comparable items (median $25.99).

Specifications

Product
Brand nameWeller
Product typeSolders & Supplies

Questions about this item

How do I install the spring-loaded plunger desoldering pump and what step do people often miss?

Cock the spring-loaded plunger until it locks, position the 0.125 in tip on the molten solder joint, then press the release button; the step users miss is cleaning the tip and barrel after each use so residue does not block the 0.25 in nozzle.

What maintenance or replacement will this ESD-safe desoldering pump need later?

Replace the tip when the 0.125 in inside diameter wears or corrodes, clean the barrel and O-ring regularly, and lubricate the spring-loaded plunger mechanism to keep suction consistent.

What limit appears first during sustained use of this 11.25 in desoldering pump?

The 1 fl oz pump capacity fills quickly during continuous desoldering, requiring frequent emptying before the spring-loaded plunger can reset for the next stroke.

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