For a timber frame wall panel table with 3 or 4 nailing stations, a 0.6 m³/min screw compressor such as the S 55 is enough. For two tables and 6 to 8 stations, aim for 1.1 m³/min with the S 75 or the K 75 4-in-1. Beyond that, or if a nailing bridge is added, move up to the S 110.
Why prefabrication changes the calculation
On site, carpenters nail in bursts. In a prefabrication shop, the wall table works like a line: one station nails studs to plates, another fixes the sheathing boards, a third staples the breather membrane or the vapour control layer. All these stations work at the same time, all day long. The compressor must hold a continuous flow, not just peaks.
Our page on compressors for timber framing covers the trade as a whole. Here we size a wall panel prefabrication shop.
Step by step, station by station
Our configurator uses, as a rough guide, about 80 L/min per nailer or stapler in normal use at around 6 bar, and about 150 L/min per blow gun. Check your tools' data sheets: a strip nailer at a high pace often needs more.
Example: two wall tables, 6 nailing and stapling stations, 2 blow guns for cleaning.
- Nailing and stapling stations, working continuously: 6 × 80 = 480 L/min.
- Blow guns, used in bursts and counted at 50 %: 2 × 150 × 50 % = 150 L/min.
- Total: 480 + 150 = 630 L/min.
- Margin of at least 25 % for hoses, tool wear and small leaks: 630 × 1.25 = about 790 L/min, or 0.79 m³/min.
If you plan a third table station or a second line, add an extension reserve. Our configurator adds 20 % when you tick that option.
What about the nailing bridge? An automatic or semi-automatic bridge carries its own pneumatic tools. Its consumption depends on the manufacturer and is in its documentation. Add it as it is to the total: it often weighs more than the manual stations.
Which compressor for the size of your shop?
One table, 3 or 4 stations: the S 55
For 4 stations and a blow gun, the calculation gives about 495 L/min including margin. The S 55 delivers 0.6 m³/min at 8 bar, or 600 L/min. It has variable speed: when two carpenters out of four go off to cut timber, it slows down instead of idling.
Two tables, 6 to 8 stations: the S 75 or the K 75
For the 790 L/min of the example, you need 1.1 m³/min.
- The S 75 screw compressor, 7.5 kW delivers 1.1 m³/min at 8 bar. It comes without receiver or dryer: the right choice if the shop already has them, or has space to install them.
- The K 75 4-in-1 screw compressor, 7.5 kW delivers the same flow with a built-in 420 L receiver, refrigerated dryer and filtration. One machine to place and connect.
Larger line or nailing bridge: the S 110
The S 110 screw compressor, 11 kW delivers 1.7 m³/min at 8 bar. Compared with the 790 L/min of the example, it leaves about 900 L/min of reserve: compare that with the bridge consumption given by its manufacturer. Beyond that, our technicians study an industrial project on quotation.
Pitfalls in a prefabrication shop
- The network around the tables. A single hose running across the table ends up crushed by panels and trolleys. Plan a fixed overhead network, ideally a ring around the tables, with one drop and one quick coupling per station. Our guide on connecting a compressor to the air network gives the rules.
- Sawdust. The compressor draws in the shop air. Keep it away from saws and cutting, or in a separate ventilated room, and check the intake filter often.
- Water in a barely heated hall. Prefabrication halls are large and often barely heated. An air dryer prevents rust in the nailers and water in the hoses. Our article which air dryer to choose helps you decide.
- Maintenance. On the S 75, K 75 and S 110, the first service is at 500 hours, then every 1,500 hours, with a reminder shown on the controller. With two shifts, those hours come fast: our article on the screw compressor maintenance schedule explains how to plan.
For a calculation with your stations, use the configurator or go back to our page on compressors for timber framing. Then send us your line layout with a quote request.
For your trade: Compressor for timber framing.