GF AgieCharmilles FORM S 350

GF AgieCharmilles' iQ generator is an adaptive intelligent power generator that monitors spark gap conditions on a pulse-by-pulse basis and adjusts discharge energy, on-time, and off-time parameters in real time. Conventional generators run preset parameter tables without feedback, resulting in arc and short-circuit events that reduce metal removal efficiency and damage the electrode and workpiece surface. The iQ system detects and suppresses arc conditions before they become damaging, maintains optimal spark distribution across the electrode face, and adapts to changes in flushing conditions throughout the job. The practical result is lower electrode wear, fewer surface defects, and more consistent cycle times.

The FORM S 350 supports graphite, copper, copper-tungsten, and copper-graphite composite electrodes. Graphite (various grades from EDM-1 to EDM-3) is most common for roughing and general mold work due to high material removal rate and low electrode wear. Copper electrodes are used for fine-finish work where sharp corner reproduction and surface quality are paramount. Copper-tungsten is selected for deep, narrow cavities in carbide workpieces and for applications requiring the lowest possible electrode wear. Tecform includes technology tables for all common electrode material/workpiece combinations.

Yes. With the optional automatic electrode changer (AEC), the FORM S 350 can execute multi-electrode job sequences — typically roughing electrode, semi-finish electrode, and fine-finish electrode — without operator intervention between electrodes. The AEC magazine capacity varies by configuration. The machine monitors dielectric level, temperature, and filter condition, alarming on conditions requiring attention. Most shops running AEC-equipped machines schedule overnight production for complex multi-electrode cavity sequences, with the morning operator inspecting completed cavities and re-loading the AEC for the next shift.

The FORM P 350 is GF's production-tier sinker EDM, optimized for higher throughput through larger electrode capacity, faster Z-axis servo response, and a higher-power generator configuration. The FORM S 350 is the standard professional tier focused on accuracy and finish quality for toolmaking. For shops where cycle time per cavity is the primary constraint and large electrode volumes are common, the FORM P 350 provides faster roughing rates. For shops where cavity geometry complexity, surface finish quality, and operator simplicity take priority, the FORM S 350 is the appropriate choice.

The FORM S 350 requires three-phase electrical service (200-220V or 380-415V depending on configuration and region), compressed air supply for electrode changer actuation (if equipped), and adequate ventilation for the oil dielectric system. Fire suppression provisions are required by most insurance and safety codes for oil-dielectric sinker EDM installations. A temperature-controlled environment improves accuracy performance — GF recommends 20°C ±1°C ambient for best accuracy. Floor load capacity for the approximately 4,200 kg machine should be verified with your facility engineer before installation.