About Us

Sharing Global Resources in Product Development
and Production Technology.

ROCBOLT Technologies, a joint venture between DSI and JENNMAR, strives to be the foremost manufacturer and supplier of specialized products to the South African underground mining and geotechnical industries. This venture provides an opportunity to provide a complete package of ground control products, engineered solutions, and new product development for our South African customers.


Our 13000m  steel and 3,000m   resin cartridge manufacturing facilities, both strategically situated in Johannesburg, enable us to provide an unparalleled level of support to our underground mining customers throughout Southern Africa. We are also committed to maintaining the highest safety, health and environmental standards and are certified to the ISO 9001: 2008 management system.

Through our combined global presence, Rocbolt Technologies has the unique ability to draw upon expertise from a diverse number of mining locations to deliver sophisticated, safe and cost effective solutions to our clients. Our experienced staff of skilled personnel provides a comprehensive range of high quality ground support products, systems and engineered solutions.


Our quest for better solutions and technology is a critical part of ROCBOLT Technologies strategy of ongoing research and development in the underground mining and geotechnical industries. Through this joint venture, we have combined the resources and products of two of the world’s leading suppliers of quality mining, tunneling and geotechnical solutions.

To download or view our BEE certificate and ISO 9001 certificate click here.