Superior Conductivity: The pure copper coils provide excellent electrical conductivity for voltage regulation; hence, the least amount of energy is dissipated in this process.
High Durability: The use of copper has enhanced tensile strengths of the material, which allows increased wear and tear resistance within the coil, increasing the service life of the voltage regulator.
Better Heat Dissipation: Copper coils handle heating much better than other conductors. With great reduction in risks of overheating, thereby it can ensure seamless performance even at high loads.
High Efficiency: Pure copper coils contribute to the raising of energy efficiency due to their low resistance, better voltage regulation accuracy, and lower operation cost accordingly.
Stable Performance: Employment of pure copper secures performance stability that further heightens the reliability and safety of the voltage regulator against a wide range of loads.

Cold rolled silicon steel sheet
Polishing process, can make the product line neatly, uniform grinding surface, bright razor-through
| Model | capacity | Iron core | coil | No-load test | Coil size | remark | ||
| OD*ID*H | Line diameter | spiral | mA | W | OD*ID*H | |||
| TDGC1 series | 1k | Ø126ר65×70 | Ø0.64 | 430T | 200 | 13 | Ø129ר58×83 | Vertical grinding surface |
| 2k | Ø165ר90×70 | Ø0.93 | 360T | 250 | 20 | Ø165ר83×85 | ||
| 3k | Ø200ר111×60 | Ø1.18 | 340T | 280 | 20 | Ø203ר105×77 | ||
| 5k | Ø228ר137×75 | Ø1.9 | 310T | 350 | 32 | Ø235ר126×87 | Side mill | |
| 7k | Ø228ר137×80 | Ø2.26 | 265T | 450 | 35 | Ø235ר126×92 | ||
| 10k-Ⅰ | Ø290ר195×85 | Ø3.04 | 262T | 170 | 20 | Ø300ר176×105 | ||
| 10k-Ⅱ | Ø290ר200×90 | Ø3.05 | 270T | 150 | 20 | Ø300ר176×110 | ||
| 10k-Ⅲ | Ø290ר200×90 | Ø2.75 | 320T | Ø300ר176×110 | 0-310V | |||
| TDGC2 series | 0.2k | Ø90ר45×45 | Ø0.25 | 750T | 100 | 5 | Ø92ר41×57 | Vertical grinding surface |
| 0.5k | Ø100ר49×55 | Ø0.38 | 625T | 130 | 7 | Ø103ר44×65 | ||
| 1k | Ø142ר65×50 | Ø0.64 | 440T | 260 | 13 | Ø145ר60×64 | ||
| 2k/flat | Ø158ר65×50 | Ø0.93 | 340T | 280 | 16 | Ø160ר58×63 | ||
| 2k/high | Ø142ר65×65 | Ø0.93 | 316T | 280 | 16 | Ø145ר58×85 | ||
| 3k | Ø175ר80×55 | Ø1.20 | 328T | 320 | 18 | Ø178ר74×71 | ||
| 5k-Ⅰ | Ø200ר100×70 | Ø1.90 | 260T | 360 | 22 | Ø207ר92×87 | ||
| 5k-Ⅱ | Ø200ר100×75 | Ø2.0 | 252T | 360 | 22 | Ø207ר92×92 | ||




