GF Machining AgieCharmilles FORM S 350
Key Specifications
X/Y/Z Travel
Worktable Size
Max Workpiece Dimensions
Max Workpiece Weight
Max Electrode Weight
Position Resolution
Overview
The GF Machining Solutions AgieCharmilles FORM S 350 is a high-precision compact sinker EDM at the top of the GF Machining Solutions technology hierarchy for the 350mm-class. The S designation denotes the Specialist tier, engineered for micromachining, precision connector molds, watch component tooling, and applications where positioning resolution matters more than removal rate.
The FORM S 350 provides X/Y/Z travels of 350 x 250 x 300 mm with a maximum workpiece size of 790 x 530 x 300 mm and a 500 kg capacity. Its 50-nanometer position resolution using linear glass scales and dual thermostabilization system set it apart from production-class sinker EDMs.
The machine features the ISPG (Intelligent Solid-state Power Generator) with a micromachining module optimized for extremely fine discharge energies. Surface finish reaches Ra 0.08 micron.
The FORM S 350 includes a 500 x 400 mm worktable, supports electrodes up to 25 kg, is System 3R compatible, and runs on the AC FORM CNC control with the full technology database.
Full Specifications
| Parameter | Value |
|---|---|
| X/Y/Z Travel | 350 x 250 x 300 mm (13.8 x 9.8 x 11.8 in) |
| Worktable Size | 500 x 400 mm (19.7 x 15.7 in) |
| Max Workpiece Dimensions | 790 x 530 x 300 mm (31.1 x 20.9 x 11.8 in) |
| Max Workpiece Weight | 500 kg (1,102 lb) |
| Max Electrode Weight | 25 kg (55 lb) |
| Position Resolution | 50 nm (linear glass scales) |
| Surface Finish Ra | 0.08 µm |
| Thermal Management | Dual thermostabilization system (machine structure + dielectric) |
| Control System | AC FORM CNC with technology database |
| Power Supply | ISPG with micromachining module |
| Machine Dimensions | 1,900 x 1,690 x 2,650 mm (74.8 x 66.5 x 104.3 in) |
| Machine Weight | 2,800 kg (6,173 lb) |
| Machine Dimensions | 1900 x 1690 x 2650 mm74.80 x 66.53 x 104.33 in |
| Machine Weight | 2800 kg6173 in |
| Travel X Y Z | 350 x 250 x 300 mm13.78 x 9.84 x 11.81 in |
| Min Surface Finish Ra | 0.08 μm |
| Max Workpiece Dimensions | 790 x 530 x 300 mm31.1 x 20.87 x 11.81 in |
| Max Workpiece Weight | 500 kg1102.31 lbs |
| Worktable Size | 500 x 400 mm19.68 x 15.75 in |
Specifications sourced from gfms.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 50-nanometer position resolution enables micromachining beyond standard sinker EDMs
- ISPG with micromachining module provides extremely fine discharge energies for sub-100-micron features
- Dual thermostabilization compensates for thermal drift from both machine structure and dielectric bath
- Ra 0.08 µm surface finish capability matches the FORM X series in a compact platform
- System 3R compatible for automated electrode handling and GF milling machine workflows
- AC FORM CNC with full technology database minimizes setup time across material combinations
Limitations
- 25 kg electrode weight limit is more restrictive than the 50 kg capacity on FORM P and FORM X machines
- 350 x 250 mm X/Y travel restricts the machine to small-to-medium cavities
- Premium pricing reflects micromachining technology that general mold shops may not need
- 500 kg workpiece weight capacity limits mold base size
Best For
Frequently Asked Questions
01
Specialist tier for micromachining. Adds 50nm position resolution, ISPG with micromachining module, and dual thermostabilization.
02
Generates extremely small, precisely controlled discharge pulses for burning micro-features with minimal heat-affected zone.
03
It can handle general work, but the FORM P 350 or FORM E 350 are more cost-effective for standard applications.
04
Fine-grain graphite and copper-tungsten electrodes are most commonly used for micromachining applications.
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