A Professional Gear and Gearbox Manufacturer

About Us

YEH DER ENTERPRISE CO., LTD is a professional ODM / OEM manufacturer of various gear driving units, like gears, gearboxes, gear pumps, etc. Based on customers needs, all procedures from design, moldflow analysis, mold making, prototyping, injection molding, assembly and packing are accomplished under one roof. We examine and control each process strictly to ensure the quality of our products.

YEH DER is certified with IS0 9001:2015. The products YEH DER offers conform to the requirements of RoHS/REACH.
YEH DER is equipped with precision production and measurement equipment to offer customers precision gears, gearboxes, gear pumps, and other plastic parts. Our products are extensively applied on consumer products, like exercise equipment, medical equipment, automobiles, bicycles, solar-energy related products, monitors, home appliances, baby strollers, code printers, Fax machines, bill counting machines, laser printers, digital cameras, DVD players, stepping motors, linear actuators, remote-control products and others with special functions of gear driving.

We run business by a team. Our group, including YEH DER ENTERPRISE CO., LTD, Ultra Precision Co., Ltd.,
and Gear Driving System Co., Ltd., has professional engineering team and service to satisfy customers' needs.

  • 1989
    Established YEH DER ENTERPRISE CO., LTD. in Taiwan (Professional at design and production of tools and gears).
  • 1997
    Established UL DER PRECISION CO., LTD. in Guangzhou (Professional at design and production of tools and gears).
  • 1999
    Had YEH DER and UL DER certificated with ISO9002:1994
  • 2002
    Had YEH DER and UL DER certificated with ISO9001:2000
  • 2004
    Established GEAR DRIVING SYSTEM CO., LTD. in Taiwan (Professional at assembly of gearboxes).
  • 2004
    Had YEH DER and UL DER equipped with the gear meshing measurement device for measuring gear accuracy.
  • 2005
    Purchased 3D tool design software, moldflow software and gear torque measurement system.
  • 2008
    Adopted ERP management system and purchase CNC gear accuracy measurement system.
  • 2009
    Had YEH DER and UL DER certificated with ISO9001:2015
  • 2010
    Entered the fields of the medicine, automobile, IP camera, robot cleaner, robot.
  • 2012
    Added the 2nd assembly line in both YEH DER and UL DER.
  • 2017
    Established GUANG ZHOU GEAR DRIVING SYSTEM PRECISION PRODUCTS CO.,LTD in Guangzhou with two assembly lines.
  • 2017
    Had YEH DER and UL DER certificated with ISO 9001 : 2015.
  • 2018
    Established UL DER PRECISION CO., LTD. in Taiwan.
  • 2019
    Purchased two image dimension measurement systems.
  • 2019
    Yeh Der has been certificated with ISO14001:2015 Environmental Management Systems since August 2019.
5F., No.12, Sec. 1, Jhongsing Rd., Wugu Dist., New Taipei City 24872, Taiwan (R.O.C.)
Tel: 886-2-89769456/Fax: 886-2-89769459/E-Mail: business@ultra-gear.com