Weller SPI soldering iron series is produced for the discerning leisure-time electronics expert and the electrical engineering industry - exactly the right soldering equipment for professional soldering work. Robust, economical, and to be used for versatile soldering work, these soldering irons are ideal for manufacture and service of electronic equipment.

The industrial soldering irons of the SPI series stand out for their strong heating elements and the wide range of soldering bits available of the long-life programme class. They are connected to supply voltage. The various output groups of 15, 25, 40, and 75 Watt can be used to perform a large range of soldering tasks. The long-life soldering bits have been provided with a galvanically applied protective layer. This protective layer extends the service life of the soldering bits considerably, and must not be destroyed by any mechanical actions (filing, scratching, etcetera). The latest galvanising processes assure the best possible thermal conduction of the soldering bits. In addition, they are absolutely scale and cor- rosion resistant.