Yieh Chen Machinery Co., Ltd. - Yieh Chen is your Thread Rolling and Spline Rolling solution. Yieh Chen of Six Star Group is an ISO9001 & AS9100 Certified Manufacturer of Gears transmission components and transmission components.

Yieh Chen high-quality spur gears, helical gears, worm shafts, thread rolling machines and spline rolling machines manufacturer from Taiwan | Yieh Chen Machinery Co., Ltd.

Yieh Chen Machinery Co., Ltd., part of Six Star Group, offers a vast range of meticulously engineered gear and transmission components certified under ISO9001 & AS9100. With expertise in producing spur gears, helical gears, worm shafts, and more, Yieh Chen serves critical industries including aerospace and agriculture. Their state-of-the-art production facilities are designed to meet international standards such as DIN and AGMA, ensuring top-tier quality and reliability.

Yieh Chen Machinery Co., Ltd.

Heavy Duty Hydraulic Thread Rolling Machines | YC-970P, YC-860P, YC-750P Models Available

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Spur Gears - Spur Gear
Spur Gears

A complete selection of cylindrical gear products.

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Helical Gear / Cycloid Gear - Helical Gear
Helical Gear / Cycloid Gear

The cycloid gear plays an especially important role in this market.

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Worm / Worm Shaft - Worm / Worm Shaft
Worm / Worm Shaft

Six Star provides custom service based on customer require.

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Bevel / Spiral Bevel Gear - Bevel Gears
Bevel / Spiral Bevel Gear

Six Star provides custom service based on customer require.

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Precision Spur / Helical Gear Rack - Precision Spur / Helical Gear Rack
Precision Spur / Helical Gear Rack

Professionally Fabricated in Taiwan

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Numerical Control thread rolling machine capable of exerting up to 120 tons of rolling pressure. - Yieh Chen model YC-1200NC. Numerical control.
Numerical Control thread rolling machine capable of exerting up to 120 tons of rolling pressure.
YC-1200NC

Solution for tougher and heat-treated materials. This machine utilizes a servo motor for stable...

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Heavy-duty thread rolling machine capable of exerting up to 120 tons of rolling pressure. - Yieh Chen most powerful model YC-1200. Best solution for tougher and heat-treated material.
Heavy-duty thread rolling machine capable of exerting up to 120 tons of rolling pressure.
YC-1200

Solution for tougher and heat-treated material. A robust and sturdy thread rolling machine...

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Heavy-duty thread rolling machine capable of exerting up to 70 tons. - Heavy Duty Thread Rolling Machine Through Feed & In-Feed both available- 2 roll with 70 tons rolling pressure.
Heavy-duty thread rolling machine capable of exerting up to 70 tons.
YC-860P

2 Dies rolling pressure up to 70 tons. Suitable for tough materials, heated bar with high...

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Heavy-duty thread rolling machine capable of exerting up to 55 tons - Heavy Duty Hydraulic Thread Rolling Machine -2 roll with 55 tons rolling pressure.
Heavy-duty thread rolling machine capable of exerting up to 55 tons
YC-750P

Feed pressure exceeds 55 Tons. Solution for tougher and heat-treated material. Easy operation...

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High Speed Hydraulic Thread Rolling Machine. Desige for rapid production of M6~ M36 with length 1 to 3.8 Meter fully threaded bar. - High Speed Hydraulic Thread Rolling Machine for threaded bar.
High Speed Hydraulic Thread Rolling Machine. Desige for rapid production of M6~ M36 with length 1 to 3.8 Meter fully threaded bar.
YC-530PS(H)

Based on YC-530P design but added recyclying gear box tank, extra coolant tank and integrate...

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Hydraulic Through & Infeed Thread Rolling Machine Most popular model for medium size 1/4" ~ 2" thread rolling. Suitable for SUS, Alloy steel and tougher material. - Hydraulic Through and Infeed Thread Rolling Machines for square thread with hardness under HRC28.
Hydraulic Through & Infeed Thread Rolling Machine Most popular model for medium size 1/4" ~ 2" thread rolling. Suitable for SUS, Alloy steel and tougher material.
YC-530P

YC-530P is most popular hydraulic type thread rolling machine which available for both through...

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Hydraulic Through & Infeed Thread Rolling Machine. Best choice for for material of mild steel without hardness. (Max OD 65mm or 2-1/2”). - Hydraulic Through and Infeed Thread Rolling Machines for stud, U bolt, J bolt thread rolling.
Hydraulic Through & Infeed Thread Rolling Machine. Best choice for for material of mild steel without hardness. (Max OD 65mm or 2-1/2”).
YC-530

YC-530 Thread Rolling Machine W/Hopper Feeder or with Hydraulic Type Auto Feeder for Double...

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Yieh Chen's Spline Rolling Machines: Essential Equipment for Automotive and Aerospace Drivetrains

Yieh Chen Machinery Co., Ltd. is a leader in the global manufacturing of high-precision gears and transmission components. This ISO9001 & AS9100 certified company, a member of the Six Star Group, offers a comprehensive range of products including spur gears, helical gears, gear racks, worms, worm shafts, and various specialized machines. Yieh Chen's commitment to quality and innovation is evident in their use of advanced technologies and adherence to stringent international standards, making their products essential for diverse and demanding applications in industries such as aerospace and agriculture.

Yieh Chen Machinery Co., Ltd is the affiliate of Six Star Group. Six Star was founded in 1975 by Six brothers and devoted to the manufacturing of precision gear products. Yieh Chen Machinery was established in 1984 into the market of machinery industry and is dedicated to produce Thread rolling machine and Spline rolling machine with high quality and durable lifetime. Yieh Chen Machinery Co., Ltd. is a gear manufacturer of gear for air screw compresser, cnc lathes, machining center, printing machines and more. Also, we providing quality thread rolling machine, spline rolling machine, multi forming machine.

Yieh Chen has been offering customers durable machine tools for manufacturing, both with advanced technology and 40 years of experience, Yieh Chen ensures that each customer's requirements are met.