Every central laundry I visit runs pillowcases on the main flatwork ironer. Sheets, duvet covers, pillowcases — everything goes through the same 3.3-meter line. It works. Nobody complains. But after building these machines for 30 years and visiting over 200 plants across 30 countries, I started noticing something that most laundry managers overlook.
What Actually Happens When You Run Pillowcases on a Full-Width Ironer
A standard pillowcase is 500 to 700mm wide. On a 3.3-meter flatwork ironer, you line up four pillowcases side by side — that's the standard practice, with four operators feeding them across roughly 2,400mm of working width.
The ironer's effective heated surface is about 2,800mm. Four pillowcases cover 2,400mm of that, leaving 400mm of hot roller pressing nothing. That's about 15% of your heated surface doing zero useful work — not dramatic, but it adds up over a full year.
The bigger issue isn't the steam. It's what those four operators are doing.
The Real Cost: People and Time
Feeding four pillowcases across a 2.4-meter span is physically demanding. Each operator grabs two corners of the sealed end, slides the pillowcase up the feed rail until the press roller catches it, then spreads the middle flat before letting go. That sequence takes about four seconds per piece when everything goes right.
Across a 2.4-meter span, 15 pieces a minute, the feed rate drops to 70–80% of rated speed. Arms get tired, pillowcases go in crooked, you get vertical creases. And while your main ironer is running pillowcases, it is not running sheets or duvet covers — the high-value work.
At an 800-room hotel laundry pushing 2,400 pillowcases a day, pillowcase processing eats about 1.5 hours of main-line time every day.
How a Dedicated 1.4m Line Changes the Math
We developed a 1.4-meter pillowcase ironing line specifically for this problem. The core idea is simple: parallel production.
Two operators feed two pillowcases side by side within about one meter of reach. They hold rated speed all shift — 1,500 to 1,800 pieces per hour. The reach is comfortable, misfeeds are rare, and the finish is consistent piece to piece.
Meanwhile, your main 3.3-meter ironer keeps running sheets and duvet covers without interruption. You're not choosing between pillowcases and sheets — you're doing both at the same time.
The steam savings matter too. Our 1.4-meter ironer fits two pillowcases edge to edge — nothing wasted. A smaller machine heats up faster and holds temperature more efficiently between batches. We measured this at a central plant with a dedicated boiler and flow meter: the dedicated line used about 33% less steam per kilogram of finished linen compared to running the same volume through a 3.3-meter ironer.
Why 725mm Rollers Instead of 800mm
Engineers always ask about this. Standard flatwork ironer rollers are 800mm diameter. Ours are 725mm.
In a four-roller arrangement, the fabric wraps around each roller in sequence. At 725mm, the total contact path puts a standard-weight pillowcase right at target dryness as it exits the last roller — one pass, done. At 800mm there's more contact than needed; the pillowcase is already dry after the third roller, and the fourth just superheats it. Below 700mm, thicker pillowcases come out damp.
We also use 12mm roller walls on our higher-spec machine. Thicker walls hold heat more evenly across long production runs. On thinner walls, the surface temperature can drift a few degrees between the start and end of a batch. For sheets you'd never notice. For pillowcases, where the whole piece passes through in seconds, that drift shows up as uneven finish.
What About Chest-Type Ironers?
About a third of the plants I visit still run pillowcases through chest-type ironers. Some get excellent results. But two things bother me.
Steam pressure stability. A chest ironer's finish depends on consistent pressure at the heated bed. In plants where the boiler also serves washers, dryers, and HVAC, pressure swings all day. Sheets are forgiving — pillowcases are not. A pressure drop shows as dampness or glazing along the seam.
Maintenance. Chest ironers need daily waxing, bed cleaning, and moisture pad inspection — 30 to 45 minutes of skilled operator time every day. Roller-type ironers don't need waxing. If your pillowcase line is a secondary operation, justifying a dedicated chest ironer is a hard conversation with your ops team.
Who Actually Needs a Dedicated Line
Not everyone. Under 500 pillowcases a day, the economics don't work. Run them on your flatwork ironer and live with the waste.
Above 1,500 a day — roughly 500+ hotel rooms, multi-property central plants, or healthcare facilities with heavy small-linen volumes — the math starts working. Steam savings, main-line time recovery, and finish quality typically pay back the equipment cost in 2–3 years.
The Bottom Line
Most of the innovation in this industry has been about making big things bigger and faster. The dedicated pillowcase line is the opposite bet — smaller, more specialized, matched to one job. Nobody asks about pillowcase efficiency until you show them the numbers. Then they can't stop asking.
