GF Machining Solutions Form 400 Sinker EDM
This model was not found in GF Machining Solutions's current lineup when we checked on 2026-10-02 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
x y z travel
work tank dimensions
max workpiece weight
dielectric system
surface finish ra
control system
How much does the GF Machining Solutions Form 400 Sinker EDM cost?
Estimated price range
Our best estimate for a sinker edm (ram edm) in this class — not a quote from GF Machining Solutions. Configuration moves it a long way.
Overview
The Form 400 is a mid-small sinker EDM listed with 400 x 300 x 300 mm of X, Y and Z travel, a 710 x 530 mm work tank and room for workpieces up to 800 kg. It is not part of GF Machining Solutions' current lineup and its table could not be matched to a GF page, so treat every number here as a listed figure.
Its most distinctive listed feature is a temperature-controlled dielectric bath held to ±1°C. Stable bath temperature keeps the workpiece and electrode from growing during long burns, which is what matters when cavity depth and fit have to hold across a shift. The listed generator is an AC FORM unit with Intelligent Power Generator (IPG) technology, run from an AC CNC with a technology database, and the best listed finish is Ra 0.1 µm.
A buyer comparing it with a current machine can look at the AgieCharmilles FORM P 350 (350 x 250 x 300 mm of travel) and the AgieCharmilles FORM P 600 (600 x 400 x 450 mm). The Form 400 is listed at approximately 3,200 kg.
Full Specifications
| Parameter | Value |
|---|---|
| X Y Z Travel | 400 x 300 x 300 mm |
| Work Tank Dimensions | 710 x 530 mm |
| Max Workpiece Weight | 800 kg |
| Dielectric System | Temperature-controlled dielectric bath, ±1°C stability |
| Surface Finish Ra | Ra 0.1 µm (finishing conditions) |
| Control System | GF Machining Solutions AC CNC with technology database |
| Generator Power | AC FORM generator with Intelligent Power Generator (IPG) |
| Machine Weight | Approx. 3,200 kg |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- Temperature-controlled dielectric bath with ±1°C stability for dimensionally consistent long burns
- Listed best finish of Ra 0.1 µm
- Workpieces up to 800 kg in a 710 x 530 mm tank
Limitations
- 300 mm of Z travel limits long electrodes in deep cavities
- The table gives no peak current figure for the IPG generator, so roughing capacity is unknown
Best For
Frequently Asked Questions
01
The table lists the dielectric bath as temperature-controlled to ±1°C. Holding the bath temperature limits thermal growth of the part and electrode over a long burn, which helps hold depth and size on precision cavities.
02
Its listed 400 x 300 x 300 mm travel falls between the AgieCharmilles FORM P 350, at 350 x 250 x 300 mm, and the AgieCharmilles FORM P 600, at 600 x 400 x 450 mm. The Form 400 is not in GF's current lineup.
More from GF Machining Solutions
GF AgieCharmilles FORM P 350
FORM E
GF Machining AgieCharmilles FORM S 350
GF Machining Solutions AgieCharmilles FORM P 600
GF Machining AgieCharmilles FORM P 350
