The Weller WP35 is a precision, temperature-controlled soldering iron designed for professional electronic assembly, repair, and hobbyist applications where consistent performance and reliability are paramount. This model operates on a 35-watt power input, providing an optimal balance of thermal capacity and control for a wide range of soldering tasks, from delicate surface-mount component work to medium-duty connections on printed circuit boards. It forms the core handle unit of the Weller WP series, a system distinguished by its use of interchangeable, magnetic "P"-series soldering tips that each contain an integrated heating element and temperature sensor. This innovative tip-design system ensures that the temperature is regulated directly at the point of contact, resulting in fast heat-up times, accurate temperature stability, and immediate thermal recovery when soldering joints that draw significant heat.

The iron's temperature is regulated by a compact, plug-in electronic control unit (ECU) that supplies power and houses the control circuitry. The WP35 handle connects to this base, which precisely monitors and adjusts the current to maintain the tip at its set temperature. This closed-loop feedback system prevents temperature overshoot and droop, providing a consistent soldering experience that protects sensitive components from thermal damage. The lightweight handle is ergonomically designed for comfort during extended use, featuring a heat-resistant grip and a rest ring to safely park the hot iron. The system's efficiency and targeted heating also contribute to energy savings and reduced tip oxidation compared to simpler, unregulated irons.

The WP35 is valued for its versatility and durability within the well-regarded Weller ecosystem. The wide variety of available P-series tips—including chisel, conical, and bevel shapes in various sizes—allows users to select the perfect tool for each specific task, from fine-pitch ICs to larger connectors. This modularity makes the station a long-term investment, as the handle and base can support countless tip changes over its lifespan. Suitable for bench work in repair shops, manufacturing, and educational settings, the Weller WP35 delivers the precise, repeatable thermal performance that professionals rely on for creating reliable, high-quality solder joints efficiently and safely.