Connector Rework, Hot Air, Connector Soldering, De-Soldering, Connectos, PC/104,
Fast PCB Connector Soldering Machine


All Zephyrtronics Equipment is Designed, Engineered, and

LowMelt, SMD Removal Below 150°C

Compare to, Menda Bottles

Flush Cutters, Lead Cutters, Shears

PCB Tweezers, Probers, SMD, BGA

Conical Dispensing Tips, Dispensing Needles

Automatic Dispenser Machines

Tin Lead Solder

Flux Dispenser Bottles, Squeeze Bottles

PC/104 Connector Reflow Systems   Samtec® PCB Stackable Connectors Soldering, De-Soldering & Rework


   Featuring Zephyrtronics Original

Major Advancement! Rapid, Effective Thru-Hole Hot-Air “Selective Soldering & DeSoldering” Reflow System

ZT-6 AirFountain®, PC104, Samtec, IEH, Stackable, Connector, Soldering Station
Patented ZT-6 AirFountain
® & Trademark Design. Multi-Purposed Hot Air Soldering: Secondary Off Line PCB Production, Stackable Connectors Soldering, DeSoldering Thru-Hole IC's & Connectors


The ZT-6-MIL AirFountain®. faster, cleaner, safer and more environmentally friendly than than messy, inconsistent methods like “drag and “dip” solder fountains and pots, It's ideal for selective soldering operations with “mixed technology” PCB's. The ZT-6-MIL eliminates the labor-intensive, secondary hand soldering tasks. It's amazing!! The ZT-6 makes real solder joints. Solder joints are far superior to  "press fit" connections...especially for space applications!


Solder Stackable Connectors! for PC/104 cards, Samtec® 'Stackers' or IEH Hyperboloid stackable connectors, there's nothing better, especially if you have gold pins.

Many Applications! The ZT-6-MIL is multi-purposed for soldering, desoldering and preheating PCB's with Thru-Hole (Connectors, I.C.’s, Pin Grid Arrays) to SMD’s (QFP’s, PLCC’s, SO’s, Sockets) to even Ball Grid Arrays (BGA’s), and PC/104 card.

How to Solder Stackable Connectors


What is a "Secondary Operation" for PCB Production? A serious bottleneck for soldering 'mixed assembly' PCB’s is where most of your devices are SMD's -- but still a thru-hole connector needs to be soldered. In such cases, the thru-hole devices are soldered “off-line” in secondary operations. The patented ZT-6-MIL AirFoutain  is your solution!

The most common “off-line” selective soldering approaches are with a.) hand soldering which is costly and time-consuming with unpredictable results from technician to technician; or b.) with either “solder dipping” or “solder dragging” in hot pots or fountains of molten metal where a PCB must be masked and where the risk of solder bridging or spilling is common; or where pin lengths is limiting. Further, maintaining precision solder fountain heights is maddening, not to mention the thankless job of perpetually cleaning away dross from these devices!

A Clean & Rapid Solution for Thru-Hole Soldering Operations: The ZT-6-MIL AirFountain®  provides simultaneous reflow of hundreds of thru-hole pins or leads in less than one single minute. The entire process non-contact and clean because soldering is achieved by selectively applied gentle forced-convection (hot air) from below (See illustrated flow charts). Best of all, you can exceed the requirements of IPC Standard B-610 with regards to 75% fill and pin coverage with 100% solder fill with fillets on both sides!

The ZT-6-MIL AirFountain® targets its temperature controlled, clean, forced-convection exactly where you need it...selectively! And de-Soldering never was this easy or fast. And the ZT-6 AirFountain®  is not a smelly, dirty and dross filled old-fashioned solder fountain. It is clean!

The ZT-6-MIL is loaded with many premium features including digital closed loop, microprocessor temperature control with set/read functions and an easy-to-operate, digital count-down timer with audible beeping to insure tight process control. Moreover, the ZT-6-MIL features its own internal air supply so no hoses, fittings, compressed air, or hook-ups are required. This remarkable production machine can be readily used at the production floor, the test lab, on a remote site or an engineer’s desk.

The construction of the ZT-6-MIL is ESD Safe and is assembled within a durable, yet lightweight steel casing. The ZT-6-MIL AirFountain® is also MIL-Spec compliant and is currently being used by the U.S. Department of Defense in applications ranging from high reliability (aerospace and military concerns) to commercial (consumer product and appliance manufacturing). Unlike older methods such as messy solder-pot-dipping, time-consuming hand-soldering and problematic desoldering operations, the ZT-6-MIL, with its clean, non-contact convective reflow, makes thru-hole connector work, secondary operations, and even rework a breeze!

A Brief History: The ZT-6-MIL AirFountain®  was originally developed to address problems with the required secondary operations for a difficult SMT PCB's that had a 4-row thru-hole connector with 104 gold pins where solder must never touch the gold pins. This made hand-soldering impossible due to the difficulty of reaching within 4 rows of pins and of avoiding contaminating the gold pins with solder. Say hello to the Zephyrtronics ZT-6-MIL that reflows hundreds of connector pins in seconds simultaneously good enough for space applications! So, why doesn't your lab or shop not have one?

  18.5 "x 7 .5" x 9" (47cm x 19cm x 23cm)
  15.5 lbs (7. 0 kg)
  Temp Control
  Closed-Loop Feedback. Easy-to-Use Microprocessor
  Programming & Digital Set/Read Functions  
  120 VAC / 60 Hz / 1,500 Watts
  Temp Range
   Ambient (R23) to 400°C (752°F)
  Air Supply
   Self-Contained. No Air Hook-Ups Required.
   Lightweight, Yet Durable Steel. ESD Safe.
  Timer Features
   Digital Countdown Timer with Audible Beeper
  .Hot Air Soldering, Gold Pin Connectors, Samtec, PC104, IEH
ZT-6 AirFountain
® for Stackable Connectors for PC/104 Cards, Samtec® & IEH Connectors
  • Rapid Connector & IC Reflow & Extraction for Hi Volume Rework! 
  • Cleaner than Solder Pots & Fountains
  • Great for De-Soldering Pin Grid Array's
  • Digital Count-Down Timer & Display
  • Heats to 400°C or 750°F

ZT-6 AirFountain® Hot Air Soldering System

Learn "How To: Simultaneously Solder
and/or De-Solder Hundreds  of Thru-Hole
Joints in Less Than One Minute."




Buy Now






230 Volt Model for International Customers





ABC-6 Adjustable Board Cradle




ZT-6-009 Custom Hard Shell Case
For the ZT-6 System




All FountainHeads® Now Only...



Soldering Fumes Extractor

ZT-4-MIL AirPlus™
Fume Extractor












©1996 - 2023  Zephyrtronics®. All rights reserved. The information you receive online from Zephyrtronics® is protected by the copyright laws of the United States. The copyright laws prohibit any copying, redistributing, retransmitting, or repurposing of any copyright-protected material. Zephyrtronics is the registered trademark property of JTI, Inc. "The Science of Zephyrtronics" and "Simplicity Through Innovation" and "AirBath" and "AirPencil" and "AirPick" and "AirMill" and "Zephlux" and "Zero Balling" and "Zero Residue" and "Post Cooling" and "Post Cooler" and "AirBath" and "SolderGlide" and "ZeroTouch" and "SolderMill"  and  "Just So Superior" are the protected trademark property of JTI, Inc. Moreover, Zephyrtronics® and LowMelt® and ZeroLead® and AirFountain® and Fountainhead® are the protected and registered trademark properties of JTI Inc. The forenamed are federally registered trademarks with the Government of the United States of America. *The above names are the registered property of their respective owners.

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Updated for September 26, 2023