CHMER ED43QA CNC Sinker EDM

The CHMER ED43QA is a CNC sinker EDM machine from Taiwan-based CHMER, one of Asia’s leading EDM manufacturers with over four decades of production experience. The ED43QA is built for precision mold and die work, offering a combination of large work envelope, high generator current capacity, and CHMER’s proprietary VGPS (Variable Gap Power Supply) generator technology in a competitively priced package.

The ED43QA’s VGPS generator employs high-frequency pulse control with variable waveform shaping, enabling efficient rough-to-finish transitions and delivering competitive material removal rates on both graphite and copper electrodes. The machine’s servo system uses a digital AC servo drive on all three axes, providing precise depth control and stable erosion even on difficult materials like pre-hardened P20 or through-hardened D2 tool steel.

With travels of 400 x 300 x 300 mm and a work tank sized for medium-to-large mold inserts, the ED43QA handles a wide range of production mold and die work including automotive body panel dies, injection mold cavities, and precision stamping tools. The machine’s control system features CHMER’s CE-series interface with touch-panel programming, automatic parameter selection by material and surface finish target, and on-screen erosion monitoring.

CHMER’s extensive presence in Southeast Asia, Europe, and North America through its authorized distributor network ensures accessible service support. The ED43QA is particularly popular among mold shops seeking Japanese and European quality-level performance at a significantly lower capital investment.