The history of DSI Underground dates back to 1865 - the foundation of the Dyckerhoff & Widmann AG based in Karlsruhe, Germany.
In the 1970s, the first DSI companies were founded to distribute the know-how of Dyckerhoff & Widmann AG internationally. In 2000, the DSI network consisted of more than 50 subsidiaries, licensees and agents.
DSI tunneling products secure various tunnels for ICE high speed railway, Germany.
DSI supplies special products for Australia's longest road tunnel in Brisbane, Australia. For the construction of the 5,000m long double tunnel, DSI supplies the AT-76 injection system used for the first time in Australia in addition to many other products and systems. The injection system protects the TBM in advance from water damage and ensuing failure
The acquisition of DSI by Triton is closed on June, 15th, 2011. Triton, a highly respected European private equity house, is now the owner of DSI
DSI South Africa strengthens Export Activities in Botswana and Zimbabwe. DSI is one of the largest and leading producers of products and systems for mining in South Africa. DSI plans to strategically expand its export activities into the important neighboring countries such as Botswana and Zimbabwe. Clients include BHB Billiton, Xstrata, Exxaro, De Beers, Anglo American Thermal Coal, Anglo American Platinum, Bombela Construction, Sasol, CMI Joint Venture and a large number of small and medium sized mining operations
DSI acquires a majority stake in UK specialist mining contractor Drill Tek Injection Systems Ltd. Drill Tek is a mining services contractor offering both contracting services such as roof bolt installation and resin injection as well as product supply for roof support and reinforcement in underground mines. Additionally, the UK based company provides specialist services for tunneling and civil infrastructure construction. The acquisition represents a strategic investment for the future of DSI’s business and is the first acquisition undertaken since Triton Partners acquired DSI in June 2011.
Strategic investment in line with DSI’s growth strategy for the Mining segment
- Acquisition of 100% of JENNMAR Canada strengthens DSI’s mining capabilities in Canada
- Acquisition of 49% in J-LOK® Resins allows DSI to have own manufacturing of resin capsules in Australia
- Establishment of a bolt and resin joint venture with JENNMAR in South Africa
PT DSI Underground Indonesia opens new Manufacturing Facility for Mining Products in Indonesia. The new, 3,000m2 manufacturing facility in Gresik, Surabaya, East Java primarily produces friction bolts for mining.
Reorganization of the DSI Group. Effective March 2016, DSI Construction and DSI Underground operate as two separate divisions. DSI Construction continues to trade under “DSI” with the traditional company logo. DSI Underground adopts a new logo that goes into effect immediately.
DSI Underground opened the new Production Facility for Resin Capsules in Mikołów, Poland in order to be able to meet every demand, including urgent and highvolume orders.
Independent market appearance of DSI Underground in January 2019.
Opening of a new manufacturing plant in Buenos Aires, Argentina. The plant has more than 2,000 square meters and generates new jobs in consolidating local production and support the customers in short term with high-quality products.
In April 2019 the production of galvanized mesh for the mining industry in Gresik Surabaya was successfully started. This is an important milestone in the expansion of local production in Indonesia.
In October 2019 DSI Underground acquired Mansour Mining Technologies Inc. The acquisition complements DSI Underground's product portfolio in Canada and also strengthens the customer service network and R&D resources.
First delivery and installation of Injection Chemicals in Mexico (Tunnel Toluca de Valle de Mexico). The DSI Underground team supported the customer with supervision and installation know-how.
Focus on local presence. With 20+ production sites worldwide, the company is close to where the customers need us – even in the most remote areas.
DSI is able to meet all delivery dates for customers despite the COVID pandemic.
Sustainable expansion of the production capabilities in Stalowa Wola, Poland to ensure a reliable just-in-time delivery for customers in Europe.
Foundation of the joint venture DSI Underground Ventilation in Chile consisting of the partners DSI Underground and ABC Ventilation Canada. The new company produces and supplies complete ventilation systems for mining and tunneling in Latin America.
DSI Underground Canada installed a new production line for the FASLOC® Resin capsules in Sudbury, ON, Canada and invested in a new roll former to produce friction bolts in Sturgeon Falls, ON, Canada. DSI continue to meet the customers' needs, bring talent together and supports local investment.
Triton announces Sandvik Group, a Sweden-based public listed company, will be taking over DSI Underground. Sandvik is a high-tech and global engineering group with over 37,000 employees and is present in 160 countries. With this acquisition, Sandvik adds 20+ local production facilities and sales points globally and will be able to offer the industry’s widest range of mining products and solutions.
DSI Underground completed the acquisition of the training and virtual reality specialist Edvirt, headquartered in Gothenburg, Sweden. The new set-up offers an unmatched virtual training system, enhancing safety and productivity across the underground development cycle.
Significant investments to upgrade the production of DSI Hollow Bar Systems in Austria. The investment in a new 1,600kW transformer, state-of-the-art automated bundling system and other products help contribute to reducing our environmental impact.
DSI Underground installed two new automated weld cells and a quality control testing station to produce friction bolts at Val d’Or, Québec, Canada. This significant investment enables us to produce an additional one million friction bolts per year in Val d'Or to meet the increasing demand of our customers.
Sandvik completes the acquisition of DSI Underground. DSI will be included in the Sandvik Mining and Rock Solutions new Ground Support Division as DSI Underground – a Sandvik Company. Customers will continue to receive the high-quality products and services they came to know from DSI, with this combination strengthening the offerings for our clients.