Miele Rotary Ironer PRI 318 [EL SOM LAM IB RF] – 3N AC 400V 50-60HZ, Octoblue

Eighty-seven kilograms per hour at 25% residual moisture and 51 kg/h at 50%: the PRI 318 sits in the throughput bracket needed for a medium to large vessel running daily flatwork. The 300 mm roller and 1,750 mm working width give it enough contact area to process sheets and table linen at speed without moving up to the largest ironer class.

On board, that output has to be balanced against space, power and HVAC. The machine stands 1110 mm high, 2469 mm wide and 1377 mm deep, so the laundry needs a clear strip of deck and free space at the rear for collection, because this configuration feeds at the front and discharges at the back. Heat dissipation into the room is 10.8 MJ/h and the emission sound pressure level at the workplace is quoted at 56 dB(A) re 20 µPa, numbers that belong in the HVAC and accommodation calculation as much as the laundry schedule.

Electrically, the PRI 318 is an electric-heated unit rated at 18.3 kW total connected load with a 17 kW heater. Supply is 3N AC 400V 50–60HZ with a 35 A fuse rating, so it ties into a standard three-phase marine distribution rather than needing a dedicated frequency. Maximum floor load is 4071 N and net weight is 415 kg, which lets the naval architect confirm deck loading without further assumptions. The machine is specified for offshore installations and specified and approved for shipboard use, so its construction and clearances are aligned with the certification path of a commercial vessel.

The controlled ironing speed ranges from 1.2 to 4.6 m/min, set on a touch display with defined programme parameters. That spread allows slower, careful finishing of complex items and higher throughput on simple flatwork, using the same 1,750 mm working width. Tested operating hours are stated at 20000, which is the scale to plan around for lifecycle and maintenance.

Mechanically, the ironer uses leaf-spring padding under an ARAMID needle-felt cloth cover. That combination supports consistent contact pressure along the 300 mm roller diameter while tolerating the thermal cycling of electric heating. The casing is finished in Octoblue, and the overall recycling rate is quoted at 98%, which will matter where decommissioning and material recovery are part of the fleet’s environmental reporting.

Build and control

• Laundry infeed at the front, laundry outfeed at the back
• 300 mm roller diameter with 1,750 mm working width
• Leaf-spring padding with ARAMID needle-felt cloth cover
• Touch display with setting of defined programme parameters
• Electric heating, 17 kW heater rating, 18.3 kW total connected load
• 3N AC 400V 50–60HZ electrical connection, 35 A fuse rating
• Specified for offshore installations
• Specified and approved for shipboard use
• Can be tied into a peak-load / energy management system

This ironer fits a ship’s laundry where flatwork volume justifies 87 kg/h at 25% residual moisture and where a through-feed layout with rear discharge is acceptable. It is the wrong choice for a very small laundry with limited depth available, or where operational practice requires return-feed to the operator side as a priority over maximum width and roller diameter. Ordered under Miele material number 11156130 / article number 53318009SOM.