Automatic Beer Keg Washing and Filling Line

This line is designed for commercial breweries, large-scale craft breweries, and beverage production facilities that keg beer in significant daily volumes and require a fully automated, operator-light solution. With single-station output at 60 kegs per hour and double-station output at 120 kegs per hour, it is suited to operations that have outgrown semi-automatic AIO kegging machines and need a continuous-flow production line with integrated detection and automated keg transfer. It is not typically recommended for nano or micro breweries with low daily keg volumes, where a compact AIO machine would offer a better cost-to-capacity ratio.

The single-station configuration processes kegs through one filling head at 60 kegs per hour with a total installed power of 18 kW. The double-station configuration adds a second filling station to increase throughput to 120 kegs per hour at 20 kW. Both configurations share the same automated transfer mechanism, detection systems, wash circuit, and CO₂ filling method. The double-station configuration is recommended for operations with higher daily keg volumes or multiple shift schedules. Buyers should confirm their target keg output per shift with the ZR BREW technical team to select the appropriate configuration before ordering.

The filling station uses CO₂ pre-pressurisation to bring the keg to the correct counter-pressure before filling begins, combined with a total-closed filling method that keeps the keg sealed throughout the fill cycle. This prevents air ingress, suppresses foaming during filling, and minimises dissolved oxygen pickup — all of which contribute to the line’s rated beer loss rate of less than 1%. This is a technically meaningful performance specification for commercial operations where liquid yield directly affects production cost per unit.

The line includes four integrated detection systems: automatic flow detection, pressure detection, residual liquid detection, and keg spear open-detection. Each system monitors a specific process parameter throughout the wash and fill cycle. If any station detects an out-of-specification condition — such as a keg with residual liquid, an incorrectly seated spear, or an abnormal pressure reading — the system triggers a station alarm to isolate and flag the affected keg. This prevents non-conforming kegs from advancing through the line and reduces the manual inspection burden on operators.

Before placing an order, buyers should confirm the following with the ZR BREW technical team: (1) required daily or hourly keg output to determine whether single-station or double-station configuration is appropriate; (2) keg sizes and spear or coupler types used in your facility — the line handles kegs from 5 to 40 litres, but connector compatibility should be verified; (3) local power supply voltage and frequency; (4) available steam supply, as the line consumes 1 m³ of steam per hour for water heating; (5) CO₂ supply capacity, as the line consumes 2 m³ of CO₂ per hour; and (6) available floor space and facility layout to allow ZR BREW to advise on line configuration and installation requirements.