MM Engineering’s end client, Chemring Energetics, is a manufacturer of explosive materials located in Scotland. The propellant factory they selected to upgrade posed a significant security and safety risk due to its hazardous supply and the outdated pneumatic door system. The objective was clear: we needed to develop a blast-resistant locking solution for a highly explosive environment. We had to ensure staff could safely enter and exit high-risk areas while protecting themselves from blasts.

The project was more complex than a straightforward lock retrofit. This unique environment required a specified solution that offered extreme resistance to blast pressure and ease of use when operating exceptionally heavy doors between production areas.

Once Chemring Energetic’s operatives saw the Coniston, they immediately felt that, with the right modifications, this locking system could fit their unique requirements. While the project wasn’t without its challenges, custom designs engineered to suit the customer's needs are a huge part of our offering. We have extensive experience in manufacturing bespoke solutions which resist a wide range of physical security threats, including forced entry, blast and ballistic risks, as well as fire containment and life safety escape.

Originally designed for high-pressure environments, sealing doors, and blast protection, the Coniston provided a solid foundation. It was the ideal solution, but certain modifications were necessary to adapt it to the propellant factory’s high-risk setting.

Creating the bespoke design allowed for wider collaboration with our associate, D J Goode, who supported the project with in-house drawings as the solution evolved into its final configuration.

Through this joint effort, we were able to create a custom solution: a bespoke, 12-point iteration of the Coniston. This unique locking system protects staff and critical equipment from high-pressure explosions and flying debris while ensuring ease of operation.