Die sinking electrical discharge machine EDFH-1

sinkerSEDMhigh-accuracy

Overview
The EDFH-1 combines ultra-precision sinker EDM and high-accuracy EDM drilling on a single compact platform designed for thermal stability, repeatable mechanical precision and operator ergonomics. The machine supports both high-accuracy drilling and standard sinker EDM operations while maintaining micron-level depth control and fine surface finishes.

Key performance and capabilities

• Surface finishes down to 1.3 µin Ra (0.25 µm Rz)
• Generator capable of producing inside corner radii as small as 5 microns (0.0002″)
• Z-axis jump speed: 10 m/min (394 ipm)
• Depth control capability: ±1 micron using a core-cooled ball screw
• High-speed C-axis providing rotation speeds up to 2,000 rpm
• Programmable W-axis provides rigid alignment for EDM drilling die guides and includes a middle guide arm to support and prevent vibration of small diameter electrodes
• Flushing pressures up to 10 MPa (1,450 psi)

Machine design and stability
The structure is engineered with alignment tolerances of 2 microns (0.00008″) or smaller over the full stroke of each axis. Thermal-stability measures include isolating heat-generating components in the electrical/generator cabinet from the machine structure and integrating the dielectric reservoir into the base casting. A stationary work table further improves precision, and a programmable 3-sided rise-and-fall work tank ensures excellent tank access and operator ergonomics.

Control and operator features
Makino's Hyper-i control consolidates machine functions into an intuitive interface. Notable elements include a large high-definition 24" class touch screen, the E‑Tech Doctor diagnostic function, on-board machine manuals with integrated training videos, straightforward customization and remote monitoring options to support advanced operations and operator preferences.

Related capabilities

• High-accuracy EDM drilling and sinker EDM processing on the same platform
• Support for small-diameter electrode stability with middle guide arm
• High-speed machining while maintaining micron-level depth control

Specifications / technical data

• Model: EDFH-1
• Table (metric): 350 x 250 mm; Table (imperial): 13.8″ x 9.8″
• Travel (metric): X: 220 mm, Y: 180 mm, Z: 300 mm; Travel (imperial): X: 8.7″, Y: 7.1″, Z: 11.8″
• Maximum workpiece weight: 50 kg (110 lb)
• ATC capacity: 8, 16
• Tank size (metric): 450 x 350 x 200 mm; Tank size (imperial): 17.7″ x 13.8″ x 7.9″
• Surface finish capability: down to 1.3 µin Ra (0.25 µm Rz)
• Minimum inside corner radius: 5 µm (0.0002″)
• Z-axis jump speed: 10 m/min (394 ipm)
• Depth control accuracy: ±1 µm
• C-axis max speed: up to 2,000 rpm
• Flushing pressure: up to 10 MPa (1,450 psi)
• Alignment tolerances: 2 µm (0.00008″) or smaller over full stroke
• Dielectric reservoir integrated into base casting; heat isolation of electrical/generator cabinet
• Stationary work table with programmable 3-sided rise and fall work tank
• Control: Makino Hyper‑i with 24" class touch screen, E‑Tech Doctor, integrated manuals and training videos