CGM Company Profile


CHERNG JIN TECHNOLOGY CO. LTD. is a Taiwanese sole proprietor mainly engaging in producing high-precision chucks for Machine Tools. Since 2004, it has shifted the focus on manufacturing 3C moulds to high-precision chucks. With more than twenty-years professional experience in integration of machine fixtures, strong R&D and production capabilies, we have obtained more than 80 both national and international patents. We have dedicated to producing and developing products leading the market trends, especially the high precision chucks (with 2μm repetition accuracy) for EDM, Milling and Lathe which parallel with leading brands.

Our main products include zero-point chucks, manual quick chucks, pneumatic chucks, automatic electrode changer, electrode holders, EDM adjusting heads, precision measuring calibration, edge finder and customized fixture plates. We devote ourselves to develop global brand and marketing our products worldwide with high quality, efficiency and values.

The strict management cultivates the enterprise spirits of “Uncompromising Integrity, Professional Intentions, Design Precision, Service First”. We expect to establish sincere partnerships and achieve mutual development with our esteemed customers !

Business Philosophy

Uncompromising Integrity, Professional Intentions, Design Precision, Service First

Customer Service Principles

  • Offering quality and economical product to customer for making profits.
  • Offering integrated plan per customer request w/o extra cost.
  • Offering efficient solution by professional technical supporting and communication.
  • Ensuring confidentiality of customer information.
  • Keeping up with trends, continuing R&D and upgrading products for sustanabe development and services.

Developed History

1998 Established Chen Gem Industries which specialized in designing and manufacturing 3D molds, prototype mold and specialty machine.

2001 Established NC machining center department for 3D mold making, and standard component machining.

2002 Re-named as Cherng Jin Technology Co., Ltd and set up Mechanical Department for CNC machine andelectrical control modification.

2003 Imported AGIE Wire Cut EDM and set up Wire Cut EDM department.

2004 Set up the R&D department of innovative Chuck. Gained two innovation patents and 21 patents in domestic and abroad.

2006 Established CGM brand and registered  trade mark. Developed Quick Manual Chuck-QM series.

2008 New plant established in Mar, and set up Overseas Department for international business expansion.

2009 Created brand  logo.

Developed the Electrode Center for EDM with Tool Magazine Capacity 12T, 16T as well 20T and gained two patents.

2010 Developed the integrated Pneumatic Chuck and gained four patents.

2011 Teamed up with reputed technology university for enhancing the developing and creative abilities.


MAR Gold Medal Award, Moscow International Salon of Industrial Property “Archimedes”

MAY ISO9001 2008 certified. Imported USA Brown & Sharpe CMM Measurement Equipment

JUN Two Gold Medals 2012 INVENTECO International Invention Show

SEP Gold Medal and Silver Medal Award, 2012 Ukraine International Invention Show

OCT Gold Medal and Silver Medal Award, 6th International Warsaw Invention Show “IWIS”Gold Medal and Silver Medal Award, World Genius Inventions Exposition in Tokyo, Japan

DEC Pneumatic Chuck-AE-88EC, 21th Taiwan Excellence Awards

2013 Qualified by The Small Business Innovation Research Program (SBIR), MOEA OF R.O.C.

Completion of development and granted patent for Pneumatic Clamping Mechanism with locking structure.


JUN Global marketing by two brands, CGM and CJC.


        NOV “COUPLING DEVICE OF JIG” was awarded with the 22nd Taiwan SMEs Innovation Award   


        DEC  AD-148RC won the 31st Taiwan Excellence Award.

        DEC  Won the SBIR innovative research and development project of the Ministry of Economic Affairs, developed the "Activity type Edge Finde" and obtained a patent