Metal foundries and casting plants run some of the most demanding industrial networks in manufacturing: extreme heat, dust, vibration, and a mix of legacy PLCs and modern sensors. This guide explains what to look for in a 5G CPE when bringing fixed wireless connectivity to a foundry floor.
What foundry networks actually carry
A foundry’s data mix is unusually heavy. Sand molding and core-making machines stream cycle data, induction and arc furnaces report temperature and power in near real-time, and optical emission spectrometers upload chemistry results that must be available instantly on the shop floor. All of this runs over a network that is exposed to metal dust and heat.
Key 5G CPE features for casting environments
- Industrial temperature range — look for units rated for high ambient temperatures near furnaces.
- Dual-SIM failover — switch carriers automatically if the primary link degrades.
- Gigabit Ethernet and VLAN support — segment production, lab, and office traffic cleanly.
- External antenna support — overcome shielding from steel structures and machinery.
- VPN and IPSec — keep spectrometer and recipe data private over the WAN.
Where FWA outperforms fixed line in a foundry
Foundries frequently expand in stages, and running conduit through a working melt shop is expensive and slow. A 5G CPE can be installed at a new molding cell in hours rather than weeks, and it can be repositioned as lines are reconfigured. Many plants also use it as a true failover WAN to protect furnace telemetry during a fiber outage.
Placement and antenna planning
Position the CPE high and clear of the melt deck, ideally near a window or external wall, and use a directional outdoor antenna to lock onto the nearest 5G cell. Avoid placing the unit directly above furnaces where radiant heat can exceed the rated operating range. A short outdoor-to-indoor cable run usually improves both signal and longevity.
For a foundry project, provide the installation environment, mounting location, network and interface requirements. Confirm the exact model specifications and applicable approval documents before selecting equipment; no universal carrier approval or foundry rating is established by this article.