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In the construction of smart factories, network communication is crucial. 5G industrial gateways and 4G industrial gateways each have advantages and disadvantages, and enterprises need to make choices based on their actual conditions. If an enterprise has sufficient budget and pursues ultimate production efficiency, high-precision control, and large-scale equipment connections, 5G industrial gateways are a better choice; if an enterprise is small in scale, has a limited budget, and has relatively low requirements for network performance, 4G industrial gateways can also meet current needs.
Differences Between 5G Industrial Gateways and 4G Industrial Gateways

Transmission speed and bandwidth

5G industrial gateways have obvious advantages. Their peak rate can reach 20 Gbps, 20 times the 1 Gbps peak rate of 4G industrial gateways. In smart factories, large numbers of devices generate massive amounts of data in real time, such as high-definition machine vision inspection equipment and large-scale sensor arrays. High-speed data transmission can ensure that production data is instantly uploaded to the cloud or central control system, ensuring smooth production processes. For example, in an intelligent automobile manufacturing factory, 5G industrial gateways can enable high-definition image data of automobile component welding quality to be transmitted quickly, and engineers can analyze and adjust welding parameters in real time, improving production efficiency and product quality. However, when faced with such large-scale, high-resolution data transmission, the transmission speed of 4G industrial gateways may experience delays, affecting the production rhythm.

Network latency

The ultra-low latency of 5G industrial gateways is difficult for 4G to match. The typical latency of 5G is around 1 millisecond, while that of 4G is 20-80 milliseconds. On automated production lines in smart factories, robot collaboration and remote control of equipment have strict latency requirements. For example, in electronic chip manufacturing, where chip production equipment works collaboratively, command transmission latency needs to be controlled within an extremely short time. 5G industrial gateways can convey control commands almost in real time, ensuring precise equipment operation and avoiding production deviations and defective products. In such scenarios, 4G latency may cause untimely equipment responses, affecting production precision and efficiency.

Number of connected devices

Smart factories have many devices, and 5G industrial gateways usually have higher performance and can connect more devices. In large smart factories, there are huge numbers of devices, from production equipment and sensors to auxiliary equipment such as lighting and air conditioning. The powerful connection capability of 5G industrial gateways can ensure that all devices are stably connected to the network, achieving comprehensive intelligent management. For example, in an intelligent garment factory, with large numbers of sewing machines, fabric inspection sensors, and logistics AGV carts, 5G industrial gateways can enable them to communicate efficiently and work collaboratively at the same time. When there are many connected devices, 4G industrial gateways may experience network congestion, and some devices may fail to connect normally or experience degraded communication quality.Deployment cost and coverage
The deployment cost of 4G industrial gateways is relatively low. On the one hand, 4G network infrastructure is extensive, and enterprises can use existing 4G base stations to achieve coverage over a certain range without large-scale construction of new base stations; on the other hand, the prices of 4G industrial gateway devices are generally lower than those of 5G products. In some small smart factories with limited budgets and not overly high network performance requirements, 4G industrial gateways can meet basic data transmission needs. However, although 4G signal coverage is wide, its ability to penetrate walls and metal obstacles in complex industrial environments is relatively weak. Because 5G industrial gateways use high-frequency bands, signal propagation attenuates quickly and coverage is relatively smaller, requiring more base stations during deployment. However, 5G base stations support higher user density. When deployed in concentrated areas of large factories, they can improve overall network performance and efficiency in the long run.

Stability and reliability

Whether 5G industrial gateways or 4G industrial gateways, both adopt industrial-grade designs and have strong stability in complex electromagnetic environments. Smart factories contain many electrical devices and severe electromagnetic interference. They can effectively resist interference and ensure accurate data transmission. For example, in intelligent steel factories, under high-temperature and strong electromagnetic environments, gateways can stably transmit key data such as blast furnace temperature and pressure.