Makino EDAF3 Sinker EDM

The Makino EDAF3 is a high-performance sinker EDM from Makino's EDAF (Advanced Fine) series, engineered for die and mold applications demanding the highest levels of surface integrity, dimensional accuracy, and electrode wear control. The EDAF designation signals Makino's intent: this machine targets shops where cavity quality drives the purchasing decision — particularly those producing precision plastic injection molds, optical molds, connector dies, and medical device tooling where surface finish and cavity geometry tolerances are extremely tight.

The EDAF3 is built around Makino's MGH Advanced Fine generator platform with extended fine-finishing circuitry that enables extremely low-energy discharges. This allows the machine to produce Ra 0.05 µm mirror-quality surfaces without manual polishing in many applications — a significant productivity advantage in mold shops where hand polishing is time-consuming and difficult to reproduce consistently across cavities. The machine's structural platform uses fine-grained Meehanite cast iron with symmetric thermal load design to minimize positional drift during long production cycles.

Dielectric fluid temperature is tightly regulated, and integrated thermal shielding reduces the effect of ambient temperature variation on positioning accuracy — both critical when targeting cavity geometries accurate to a few microns. Control is provided by Makino's HYPER i system with a rich EDAF-specific machining condition library covering rough, semi-finish, finish, and mirror-finish sequences that operators can program as a single automated cycle.

The EDAF3 supports Makino's automatic electrode changer for unmanned production operation and is compatible with the Makino System 3 pallet infrastructure for integration into automated die and mold manufacturing cells. This makes it the natural companion to Makino's machining centers for shops building fully automated tooling production lines.