Since our founding in 1906, AMD has been committed to delivering global and innovative mining solutions. Our custom-manufactured Mine Doors are designed to provide economical, safe, efficient, and practical ventilation control for all types of track and trackless mines worldwide. Our journey has always been driven by a dedication to meet the unique needs of our clients, ensuring their safety and operational efficiency.

A Unique Challenge

Recently, we faced a unique request where a client required a larger pedestrian door for a higher-pressure application a 11” water gauge. Typically, underground personnel doors are narrow, allowing only one miner to pass through at a time. This poses a significant challenge, especially when miners need to carry equipment or supplies.

Collaborating closely with the client, we re-engineered a wider, 7-foot (2.1 meters) personnel door. This new design not only accommodates access for multiple miners simultaneously but also provides ample clearance for those carrying equipment and other supplies.

To achieve this, we utilized the benefits of our opposing wing design, extended the overall width, and upgraded the door hubs and self-closing device to withstand higher air pressure. Additionally, we incorporated seals around the door to enhance its seal performance.

For added safety, we included a custom threshold ramp with a non-slip coating on the walking surface, significantly improving the miners’ safety as they navigate through the door.

Safety First and Last

Our commitment to safety is unwavering. Upon completing the design, we performed a Finite Element Analysis (FEA) using calculations, models, and simulations to predict and understand how the door would behave under current mine conditions. The result was a door that is now PE rated up to a 20” water gauge with an added safety factor, ensuring robust performance even under extreme conditions.

At AMD, our mission is to create solutions that prioritize safety and efficiency. This project is a testament to our ability to adapt and innovate in response to our clients’ needs. As we continue to evolve, our focus remains on safeguarding miners and enhancing the mining industry’s future. Together, we can overcome any challenge and continue to push the boundaries of what’s possible in mining safety and efficiency.