Kegging System Buyer’s Guide: How to Choose the Right Line for Your Brewery

Choosing a kegging system is one of the most consequential equipment decisions a brewery makes. The right line protects product quality, controls labor costs, and gives a brewery room to grow; the wrong one becomes a bottleneck within a year or two. Co.Mac, which has built keg filling equipment for breweries of every scale for more than thirty years, breaks the decision down by production volume rather than by brand name or feature list — a useful starting point for any brewery evaluating a kegging system.

Start With Your Actual Keg Volume, Not Your Ambitions

It is tempting to buy for the brewery you hope to become in five years. In practice, a kegging system sized well beyond current output sits underused, ties up capital, and often runs less reliably at low speeds than a machine designed for that range. Co.Mac organizes its kegging systems into three tiers that map to real-world brewery output: microbrewery systems running 15 to 40 kegs per hour, medium brewery systems running 40 to 250 kegs per hour, and industrial systems running 250 to 1,000 kegs per hour. Matching your line to your current volume, with a clear path to the next tier, is the single most important decision in the buying process.

Microbrewery Kegging: 15–40 Kegs per Hour

At this scale, semi-automatic to fully automatic kegging machines handle washing, filling, and sealing in a compact, stainless-steel footprint that fits a working taproom or small production floor. Keg loading and unloading is often manual or conveyor-assisted, which keeps upfront cost down while still delivering consistent fill quality and proper sanitation between batches. This tier suits taprooms, brewpubs, and breweries building out regional distribution one account at a time.

Medium Brewery Kegging: 40–250 Kegs per Hour

Once a brewery is filling for regular commercial distribution, fully automatic systems with programmable controls and display monitoring become the more economical choice on a per-keg basis. These lines still use stainless-steel construction and the same core washing-filling-sealing sequence, but with less manual intervention and more consistent throughput shift over shift. This is the range where many growing regional breweries land, and where ancillary equipment — keg washers, control stations, labelers — starts to matter as much as the filler itself.

Industrial Kegging: 250–1,000 Kegs per Hour

At the top end, fully automated, high-speed kegging lines are built for large-volume producers where minimal waste and strict hygiene standards are non-negotiable. Co.Mac systems in this tier are used by major international brewers, and every stage of handling — from pallet to filled, sealed keg — is automated to keep labor cost per keg low while protecting product consistency across long production runs.

Questions to Ask Before You Buy

• What is your current average kegs-per-hour, and what is it likely to be in two to three years?
• Do you fill stainless steel kegs, one-way plastic kegs, or both — and does the system you’re considering handle your keg material without costly changeovers?
• What ancillary equipment (washers, control stations, labelers, palletizers) will you need alongside the filler to run a complete line, not just a single machine?
• What does the manufacturer offer for ongoing support — remote diagnostics, spare parts availability, and technical response time — once the line is installed?
• Can the system scale, or will outgrowing it mean replacing the whole line rather than adding a module?

The Bottom Line

A kegging system is a long-term production asset, not a one-time purchase. Breweries that size their line to current volume, plan for the ancillary equipment a complete line actually requires, and choose a manufacturer with a real support track record tend to get more consistent fills, less downtime, and a smoother path to their next capacity tier. Co.Mac’s tiered approach — microbrewery, medium brewery, and industrial systems, backed by 24/7 technical support — reflects exactly that logic.