HISTORY
HOW WE HAVE FORGED OUR VALUES
1865
DANGO & DIENENTHAL was founded in 1865 by August Dango and Louis Dienenthal as a non-ferrous metals foundry. During the first four decades of the twentieth century, the company’s core business gradually shifted towards the manufacturing of special machinery. Today, the family-owned company is in its fifth generation, managed by Rainer Dango und Arno Dienenthal.
1901
In addition to the founding location in Siegen, the DANGO & DIENENTHAL group of companies has subsidiaries with production and service locations in South Africa, North America, India, Japan, Russia, China, Mozambique and Sweden.
1933
The first charging machine
1936
The first mobile forging manipulator
1941
The first cooling water filter
1956
The first rail-bound forging manipulator
1958
The first tap-hole drilling machine for blast furnaces
![[Translate to Englisch:] Bau der ersten Abschlackmaschine](/fileadmin/user_upload/unternehmen/geschichte/DD-Historie-1966.jpg)
1966
The first deslagging machine
1978
DANGO & DIENENTHAL Maschinenbau GmbH supplies a wide range of handling equipment for open-die and closed-die forging presses, ring-rolling operations, submerged arc furnaces (SAF), and slag skimming equipment for steel mills. The latest additions to our product range are ring-cutting machines for ring rolling shops. These machines can cut ring blanks into individual rings of only a few millimeters in height.
1982
Foundation of the South African subsidiary
1986
Foundation of the US subsidiary
1988
The first large manipulator for heavy forgings with a 700 kN load capacity
1990
DANGO & DIENENTHAL Filtertechnik GmbH manufactures industrial filter systems and separators for the cleaning of fluids.
1998
Foundation of the Indian subsidiary
1999
Foundation of the Japanese subsidiary
1999
Launch of mobile forging manipulators with load capacities exceeding 800 kN
2001
Rainer Dango becomes a Managing Director
2001
Launch of rail-bound forging manipulators with load capacities exceeding 800 kN
2003
Since 2003, TMT - Tapping Measuring Technology, a joint company of DANGO & DIENENTHAL, based in Siegen, Germany, and PAUL WURTH, based in Luxembourg, has been the company’s center of competence for cast house equipment and measuring technology for blast furnaces.
2007
The world’s biggest rail-bound forging manipulator (SSM series) with 2,550 kN load capacity and 7,500 kNm load torque
2009
Arno Dienenthal becomes a Managing Director
2011
The world’s biggest mobile forging manipulator (MSM series) with 1,500 kN load capacity and 2,400 kNm load torque
2014
Since 2014, DANGO & DIENENTHAL Umformtechnik GmbH has been manufacturing and supplying roller bending machines for large, heavy-gauge plates, and induction bending machines especially for large-diameter thick- and thin-walled pipes. A strategic partnership with a measuring technology specialist, entered into in 2019, enables Dango & Dienenthal to supply—as a novelty in pipe making—gauges for the measurement of the inside wall contours of pipes. Revamping service for hydroforming machines is also part of the company’s service portfolio.
2015
At the end of 2015, HENCON BV, based in the Netherlands, became part of the group, completing DANGO & DIENENTHAL’s portfolio with machines and equipment for the aluminium, mining and forestry industries. In addition to the supply of machinery, HENCON provides a wide range of on-site maintenance and service activities.
2015
The most powerful skimming machine (SAM 50) with slag raking forces of up to 500 kN
2015
Comprehensive use of Industry 4.0 features in our mobile machines: telemetric boxes transmit machine data for analyses
2018
The first forging manipulator with energy recovery system (ERS)
2019
The first hydroforming press with 50 MN locking force
2020
Launch of “D&D Connect”, our digital online portal for the monitoring our mobile machines and for maintenance activities and spare parts supply. Use of AR goggles to facilitate maintenance.
2021
The first PIPE SIZER equipped with an integrated laser unit for the measurement of the inner diameter and ovality of pipes
2022
Since the foundation of our company, we have supplied more than 2,000 machines and systems. Family-owned and managed in the fifth generation by Rainer Dango und Arno Dienenthal, the company today employs 800 employees worldwide.