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Tsung Hsin Enterprise (Yeh Hsin) was established in 1984, making alloy die-casting products with one machine.
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Tsannkuen Co., Ltd. supported USD 63,000 to increase two die casting machines.
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Established die making service and changed the name to Yeh Hsin Industrial Co., Ltd.
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Expanded to nine die casting machines.
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Set up Rende 2nd factory and purchased ITALPRESSE 1100-ton die casting machine, expanded to total twelve machines.
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Cooperated with world famous die casting expert Dr. Ebisawa to improve die design and die casting technique.
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Purchased second ITALPRESSE 1100-ton machine and established Yeh Hsin Technical Training Center.
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ISO 9002 Quality Assurance System verified.
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QS 9000 Quality Assurance System verified. President Mr. Yeh served as the president of the Association of High Pressure Die Casting.
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Implemented Taguchi method to improve quality, at the same time cooperated with Chung-Shan Institute of Science & Technology to develop new products.
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ISO 14001 Environment Protection System verified.
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Purchased new TOSHIBA 650-ton machine.
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ISO/TS 16949 Quality Assurance System verified.
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Purchased new 250-ton die casting machine.
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Purchased new TOSHIBA 350-ton die casting machine.
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Purchased new TOSHIBA 250-ton die casting machine.
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Adopted the way of one machine outfitted with two electric furnaces and de-gassing equipment to fulfill the degassing and deslagging operation so as to enhance the molten metal quality.
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Purchased new TOSHIBA 650-ton die casting machine outfitting with two electric furnaces and de-gassing equipment.
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Purchased new TOSHIBA 250-ton die casting machine with electric furnace.
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Purchased new TOSHIBA 650-ton die casting machine outfitting with two electric furnaces and de-gassing equipment.
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X ray machine updated its image transmission intensifier and specific computer image processor and software to enhance the image resolution and measuring capability for length and angle.
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Joined Diecasting Industry Technology Service Alliance, DITSA, cooperated with Dr. Juang, Shueiwan to improve die design and die casting technique.
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IATF 16949:2016 verified.
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Fulfilling the environmental requirements, the recycling equipment was set up to separate and filtrate the waste oil and water from the production process.
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Purchased new TOSHIBA 650-ton die casting machine.
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Purchased new YOTA 150-ton die casting machine.
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Purchased CHUN YEN universal testing machine(same as SGS)
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Purchased new TOSHIBA 650-ton die casting machine.
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Purchased new SHIBAURA 650-ton die casting machine
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Purchased two YOTA 420-ton die casting machines
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Purchased new YOTA 250-ton die casting machine
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Purchased new YOTA 150-ton die casting machine