since 1965
- Inventor of High Speed Drilling EDM
- First Electric Discharge Machine in Taiwan
- More than 40 patents in the world
- 2 National Invention Prizes

Company Profile
　　Tai-I Electron Machining Co., Ltd. was established in 1965. With 45 years of professional experiences in EDM field, TOPEDM has been widely recognized by global customers of its quality products and excellent services. TOPEDM is the Inventor of High Speed Small Hole Drill EDM and the pioneer of Electric Discharge Machines in Taiwan. The advanced professional technology and quality products are special characteristics of TOPEDM. Being the winner of Taiwan Excellence Award and two national invention awards, TOPEDM has obtained more than 40 patents in the developed countries around the world.

R&D Capability
　　TOPEDM R&D team with abundant experiences and expertise assists customers overcoming machining bottle necks and difficulties. TOPEDM has continuously developed new products and new functions for having fast speed, less wear, easier operating procedures, and lower production cost to benefit our customers. 15 years ago, solely on its own, TOPEDM developed the 8-axis CNC Control system which is the professional controller for Small Hole Drill EDM, accompanied with Automatic Tool Changer, Automatic Guide Changer, and high precision Rotary/ Tilt Table - with resolution of 360000 division per round, capable of submerged operation. TOPEDM CNC machines can machine any position, angle, and direction. We endeavored in developing advanced EDM technologies for effective shortening of the process time as well as increasing the product quality and lowering production cost. TOPEDM products have been substantially recognized and validated by the aerospace industry

Manufacturing Capability
　　TOPEDM strictly controls every step of the process; starting from order confirmation, material preparation, production, and up to product assembly, each and every procedure undergoes strict quality control. Advance high-precision facilities are used in association with professional technique, continuously upgrading productivity and lowering production cost, for the purpose of accomplishing the persistence of TOPEDM: “Quality First, Customer First”.

Quality Assurance
　　TOPEDM has passed many international certifications. Quality requirements are strictly fulfilled via precision measuring instruments. Aerospace inspections reveal that machining results in re-melted layer and irregular surfaces are far better than aerospace standards, with no sign of micro crack. 24 hours continued operation; a highly-stable machine with a near-zero failure rate, TOPEDM ensures top quality in terms of product reliability.

Company Vision
　　TOPEDM products are marketed globally with internationalized features and competitiveness, together with fully oriented and prompt after-sales service. TOPEDM aims to create a world-wide new era of Electric Discharge Machine with constant innovation and technological breakthrough.

Established in 1965
1965　　First Electric Discharge Machine (EDM ) developed in Taiwan.
1968　　Improved RC-Circuit into RCL-Circuit of the generator.
1970　　Adopt power transistors as generator’s switching elements.
1971　　Adopt percentage energy distribution circuit.
1972　　Adopt dynamic coupling of servo motor.
1973　　Z-Axis driven by ballscrews and guide ways.
1975　　Adopt High- Speed Jumping control.
1978　　Hydraulically driven system for handling heavy electrode.
1980　　Developed RBC-circuit low electrode wear.
1982　　First mirror finisher developed in Taiwan.
1984　　First High Speed Small Hole Drilling EDM invented in the world.
1989　　Successfully developed Z-Axis NC EDM
1990　　Successfully developed EDM controller & CNC machines.
1992　　Awarded National Best Product Design “ Symbol of Excellence”.
1993　　Awarded“ National Invention Product”( Bronze )
1995　　TOPEDM Ram type and Double-Ram type Die Sinker EDM developed.
1996　　European CE Certificates.
2000　　The first 5-Axes CNC Controller High Speed Drilling EDM developed in Taiwan.
2001　　ISO9002 Certificate.
2002　　High Precision Rotary Tilt Table NR-120W-AB & NR-250W-AB developed.
2003　　TOPEDM 8 –Axes Full CNC Controller High Speed Drilling EDM developed in Taiwan. with patented automatic guide changer, patented automatic electrode changer, and automatic tilt head.
2004　　CE Certificates – EMC, MD, & LVD Certificates.
2005　　Developed high quality and economic type of ZNC machine TSH-5AA.
2006　　Heavy load High Precision Rotary/Tilt Table NR-350W-AB developed.
2007　　Big machine TSH-1200V CNC machine developed, special for aerospace industry.
2008　　Developed new WSH-10 CNC series machines.
2009　　Break-Thru Detection function developed.
2010　　Developed New MPN Series Die Sinker EDM