Private 5G Goes 1.5 km Underground at Callio FutureMINE

Posted by on

Mining has always been one of the toughest environments for connectivity. It is not just a question of extending coverage into a building or across a campus. Underground mines have dense rock walls, long tunnels, changing layouts, heavy equipment, dust, noise, vibration and workers operating in remote and hazardous conditions. At the same time, the industry is looking to improve safety, reduce downtime and make better use of automation, remote operation and real-time data.

This is why the Callio FutureMINE project in Pyhäjärvi, Finland, is an interesting private 5G case study. The site is the former Pyhäsalmi copper mine, which has been transformed into a real-world testbed for next-generation mining technologies. It is not a small trial environment either. The mine has an 11 km decline length, 22 levels of tunnels and reaches a maximum depth of 1.5 km below ground.

Boldyn Networks has designed, deployed and manages a private 5G network at the site, based on Nokia technology. The purpose is to provide seamless, high-capacity and low-latency connectivity across the mine, enabling companies to test mining applications in realistic underground conditions rather than in a lab or a simplified test zone.

One of the more useful parts of the case study is the explanation of why Wi-Fi was not considered suitable for this environment. In many enterprise settings, Wi-Fi can be a good solution, but underground mining is a very different challenge. The case study points to dense walls, fixed access points, lower power levels and a continually changing layout as reasons why Wi-Fi would struggle to provide the required coverage and reliability. In contrast, private 5G is presented as a better fit because it can deliver wider coverage, stronger mobility support, dedicated bandwidth and more consistent performance across a harsh and evolving environment.

The first major use case is safety communications. The mine previously relied on walkie-talkies, which could suffer from signal outages in remote areas. In an underground environment, this is not just inconvenient, it can become a safety issue. Workers need to receive alerts, communicate with teams on other levels and be locatable in an emergency. The private 5G network supports voice communication and instant messaging through smartphones, helping teams stay connected even at the deepest levels of the mine.

The second use case is autonomous and remote-controlled equipment. Normet, a manufacturer of mining vehicles, is using the FutureMINE site to test autonomous vehicle technology. The direction of travel for mining is clear: wherever possible, remove workers from dangerous underground areas and allow more operations to be controlled from the surface. For this to work, connectivity needs to support real-time video, sensor data and control commands with very low latency. Any delay or interruption could affect safety, accuracy and productivity.

The third use case is real-time 3D visualisation and positioning. Cybercube is testing a platform for 3D mapping, operational control and real-time positioning in an environment where GPS is not available. This creates a digital view of the mine so that people, vehicles and equipment can be monitored and tracked in real time. For mining operations, this kind of situational awareness can support safer navigation, faster response to incidents and better coordination across multiple underground levels.

What makes this case study more valuable is that it goes beyond the usual private 5G marketing language and links the network to operational outcomes. The reported results include improved worker safety, support for remote and autonomous operations, better suitability for deep mining environments and zero network downtime since Boldyn started managing the network. That last point is especially important because innovation testbeds still need dependable infrastructure. If connectivity is unreliable, every application trial built on top of it becomes harder to validate.

There is also a wider lesson here for the private networks market. Mining is one of the sectors where the difference between general-purpose wireless connectivity and operational-grade wireless connectivity becomes very clear. In an office or public venue, a dropped connection may be frustrating. In an underground mine, connectivity can be directly linked to worker safety, equipment control and emergency response. This is where private 5G starts to look less like a connectivity upgrade and more like a core part of the industrial operating model.

Callio FutureMINE is also a useful example because it is not only about improving an existing mine. It is a testbed for the mining industry to understand what future operations could look like. If vehicles can be controlled remotely, workers can be tracked in real time, evacuation alerts can be sent with location awareness and digital twin platforms can visualise activity underground, then mines can become safer, more automated and more productive.

Private 5G will not solve every challenge in mining on its own. It still needs to be integrated with vehicles, sensors, applications, safety systems, operational processes and cybersecurity controls. However, without a reliable wireless foundation, many of these digital transformation ideas remain difficult to deploy at scale.

The Callio FutureMINE deployment shows how private 5G can support some of the most demanding industrial environments, not as a technology showcase, but as an enabler for safer and smarter operations. The video below gives a useful view of the underground environment and the role connectivity is starting to play in the future of mining.

Related Posts: 

Comments

Post a Comment