history
1987 to present.
Eco-friendly energy technology innovation
brought about by KHANSTN
brought about by KHANSTN
2020
11
Energy use rationalization equipment certification
(Korea Energy Agency)
(Korea Energy Agency)
10
Commercialization of electric CNC lathe (spindle)
(Hyundai Wia KIT-4500)
(Hyundai Wia KIT-4500)
2018
07
Overseas patent registration of aluminum chuck
(US, China, Japan)
(US, China, Japan)
2017
07
Designated as a promising export small business
04
Designated as an innovative technology small
and medium enterprise (INNO-BIZ)
and medium enterprise (INNO-BIZ)
02
Designated as a global small giant
2016
12
Acquired aluminum chuck reliability certification R
(Korea Institute of Machinery & Materials)
(Korea Institute of Machinery & Materials)
2015
12
Registered patent for electric spindle drive
2014
10
Electric drive cylinder patent technology
03
Registered a patent for an automobile
accelerator auxiliary device Designated as a management innovation type small
and medium-sized business (MAIN-BIZ)
accelerator auxiliary device Designated as a management innovation type small
and medium-sized business (MAIN-BIZ)
2013
03
Patented technology for aluminum special alloy chuck
Developed and patented aluminum special alloy chuck
2010
02
Started exporting power chucks and anti-vibration
tools to the European market
tools to the European market
2009
03
India Distributor Agreement
Released DSK type of anti-vibration protection
in Japan
in Japan
2008
06
Designated as a technology innovative SME
(INNO-BIZ) Venture company designation
(INNO-BIZ) Venture company designation
02
Export of extra-large index chuck
2007
09
Established a local subsidiary of Khan Work Holding
(Shenyang) Sangmu Co., Ltd. in China
(Shenyang) Sangmu Co., Ltd. in China
03
Developed cylinder built-in quick-change chuck
for machining aluminum wheels
for machining aluminum wheels
2006
08
Recognized as a maintenance-qualified company
by Korea Western Power Co., Ltd.
by Korea Western Power Co., Ltd.
06
Recognized as a qualified maintenance company
by Korea South-East Power Co., Ltd.
by Korea South-East Power Co., Ltd.
05
Recognized as a qualified maintenance company
by Korea Eastern Power Co., Ltd. Recognized as a qualified maintenance company
by Korea Southern Power Co., Ltd.
by Korea Eastern Power Co., Ltd. Recognized as a qualified maintenance company
by Korea Southern Power Co., Ltd.
02
Jeonju office moved to Daejeon office
2005
12
Korea Midland Power Co., Ltd. Approved
as a qualified maintenance company
as a qualified maintenance company
07
Changed company name
from Dongwoo Work Holding Co., Ltd.
to Khan Work Holding Co., Ltd.
from Dongwoo Work Holding Co., Ltd.
to Khan Work Holding Co., Ltd.
2004
01
Established branch offices in Shanghai, Shenyang,
Beijing, Yantai, and Guangzhou, China
Beijing, Yantai, and Guangzhou, China
2003
12
Daegu sales office opened
01
Seosan branch opened
2002
06
Designated as a promising small
and medium-sized business for export by the Small
and Medium Business Administration
and medium-sized business for export by the Small
and Medium Business Administration
01
Opened regional sales agency in China
Beijing, Shanghai, Wuxi, Shenyang
2001
09
Comprehensive acquisition
of Daesangri Factory Industrial Co., Ltd.
of Daesangri Factory Industrial Co., Ltd.
07
Changed company name
to Dongwoo Chuck & Work Holding Co., Ltd.
to Dongwoo Chuck & Work Holding Co., Ltd.
2000
03
Acquired ISO 9001
01
Supplied air chuck for optical cable production line
to LG Cable & System (Gumi)
to LG Cable & System (Gumi)
1999
06
Signed an agency contract
in North America with US P.B.A
in North America with US P.B.A
1998
11
Signed a regional agency agreement
with Magnum Australia
with Magnum Australia
07
Established technical research institute
1997
12
Development of Tool Turret (Disk Type)
1996
06
Developed Jaw Changer Chuck (joint with KIMM)
1995
10
Opened Jeonju Office
01
Cicago permanent exhibition hall opened
1994
04
Recognized for domestic new technology (K.T)
1993
08
Development of high-speed electric hydraulic cylinder
07
Developed precision air chuck
with Korea Machinery Research Institute (KIMM)
with Korea Machinery Research Institute (KIMM)
06
Developed high-speed hydraulic chuck
with Korea Institute of Machinery (KIMM)
with Korea Institute of Machinery (KIMM)
1992
07
Selected as a technology advanced SME
02
Registered as an official supplier of hydraulic, pneumatic
and collet chucks to Hyundai Precision Industry Co., Ltd.
and collet chucks to Hyundai Precision Industry Co., Ltd.
01
Registered as an official supplier of hydraulic
and pneumatic collet chucks
to Mando Machinery Co., Ltd.
and pneumatic collet chucks
to Mando Machinery Co., Ltd.
1990
12
CAD/CAM System Operation
07
Completed joint development of Auto Indexing Chuck
with Korea Machinery Research Institute
with Korea Machinery Research Institute
03
Ulsan office opened
01
Registered as an official supplier
of hydraulic/pneumatic chucks and collet chucks
to Daewoo Heavy Industries Co., Ltd.
and started supplying
of hydraulic/pneumatic chucks and collet chucks
to Daewoo Heavy Industries Co., Ltd.
and started supplying
1989
11
Registered as an official supplier
of hydraulic/pneumatic chucks and collet chucks
to Tongil Heavy Industries Co., Ltd. Registered as an official supplier
of hydraulic/pneumatic chucks and collet chucks
to Kia Automobile Co., Ltd. and started supplying
of hydraulic/pneumatic chucks and collet chucks
to Tongil Heavy Industries Co., Ltd. Registered as an official supplier
of hydraulic/pneumatic chucks and collet chucks
to Kia Automobile Co., Ltd. and started supplying
09
Seoul office opened Selected as a promising small
and medium-sized business
by the Korea Machinery Research Institute (KIMM)
and medium-sized business
by the Korea Machinery Research Institute (KIMM)
07
Registered as an official supplier of hydraulic
and pneumatic chucks and collet chucks
to Daewoo Motors Co., Ltd. and started supplying them
and pneumatic chucks and collet chucks
to Daewoo Motors Co., Ltd. and started supplying them
1988
07
Registered as an official supplier
of hydraulic/pneumatic chucks and collet chucks
to Tongil Heavy Industries Co., Ltd. and started supplying Registered as an official supplier
of hydraulic and pneumatic chucks and collet chucks
to Kia Motors and started supplying them
of hydraulic/pneumatic chucks and collet chucks
to Tongil Heavy Industries Co., Ltd. and started supplying Registered as an official supplier
of hydraulic and pneumatic chucks and collet chucks
to Kia Motors and started supplying them
1987
10
Seoul office opened Selected as a promising small
and medium-sized business
by the Korea Machinery Research Institute (KIMM)
and medium-sized business
by the Korea Machinery Research Institute (KIMM)
03
Registered as an official supplier
of oil/high pressure chucks and collet chucks
to Hyundai Motor Company and started supplying them
of oil/high pressure chucks and collet chucks
to Hyundai Motor Company and started supplying them
