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Category: Tools / Accessories

Questions & Answers

Here you'll find all the frequently asked questions and answers we've compiled for you.

With the FX-972, handpieces FX-9701 through FX-9708 can be connected to either channel 1 or 2; there is no fixed assignment based on tool type. With the FX-973 as well, the FX-9701 through FX-9708, as well as the FR-4103 desoldering tool, can generally be used on any of the three connections. Restrictions apply only to the simultaneous operation of multiple high-power tools from the FX-9705 to FX-9708 series. In such combinations, one tool is set to standby mode. The channel selection can therefore be made based on the workflow and cable routing.

The FX-972 supports eight handpieces: FX-9701 through FX-9704 for standard, N2, and micro soldering, FX-9705 as SMD tweezers, the FX-9706 as micro-tweezers, and the high-performance soldering irons FX-9707 and FX-9708. Both ports can be freely assigned. However, two tools from the higher-power group (FX-9705 through FX-9708) cannot be active at the same time. The FX-973 supports the same eight handpieces as well as the FR-4103 desoldering tool. If multiple high-power tools are connected, one of them is placed in standby mode; lower-power combinations can be used simultaneously.

Among other products, Hakko offers slide units, tip cleaners, temperature probes, N2 adapters, and various TX1 and TX2 soldering tips. These components support stable, reproducible spot and drag soldering processes.

In drag soldering, the soldering tip must be suited to the joint geometry, movement, and heat requirements. The correct tip shape promotes uniform heat transfer and consistent wetting along the solder joints.

A micro soldering iron is useful when working with very small components, tight component spacing, or hard-to-reach solder joints. It facilitates precise hand control and enables controlled work on compact printed circuit boards.

Depending on the application, fine, chisel-shaped, beveled, or curved soldering tips are suitable for SMD components. The smallest tip is not always the best choice. It is important to have a sufficient contact area to ensure stable heat transfer.

For SMD soldering work, you’ll need a temperature-stable soldering station, appropriate soldering irons, SMD soldering tips, tweezers, and—depending on the task—rework or desoldering tools. It’s crucial that the tool, tip shape, and heat output are suitable for the specific solder joint.

Technically, this is possible; however, it significantly increases the risk of poor wetting, longer process times, and thermal stress on the assembly.

Service life depends on temperature, usage, cleaning method, and application. When handled properly, high-quality soldering tips can deliver consistent results over a long period of time.

Oxidation occurs as a result of high temperatures and contact with oxygen. It impairs wettability and reduces heat transfer.

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