Miele Rotary Ironer PRI 418 [EL SOM LAM IB RF] – 3 AC 450V 50-60HZ, Iron grey

104 kg of flatwork per hour at 25 % residual moisture across a 1,750 mm working width puts the PRI 418 into heavy-duty territory for onboard laundries. The 365 mm roller diameter provides the contact area to handle wide pieces in one pass at that load.

On a vessel, those numbers drive both layout and services. This model is specified and approved for shipboard use and specified for offshore installations, so it is matched to that environment rather than adapted later. Electrical connection is 3 AC 440 V 50–60 Hz, which aligns with common marine switchboards, and a maximum floor load of 4,356 N means the naval architect can treat it as a defined structural item rather than a light machine.

The PRI 418 sits in the Miele Professional range and is built with laundry infeed at the front and laundry outfeed at the back. That through-feed construction separates feeding from stacking and sorting, which suits a laundry where one side of the room is dedicated to soiled handling and the other to clean. Minimum controlled ironing speed is 1.5 m/min and maximum is 5.4 m/min, so the operator can tune contact time to textile type and residual moisture. Output is quoted as 104 kg/h at 25 % residual moisture and 63 kg/h at 50 % residual moisture, giving a clear basis for pairing the ironer with upstream washer-extractor programmes and expected load profiles.

Electrical load is straightforward to integrate into a ship’s energy balance. Heating is electric, with an electric heater rating of 21.4 kW and a total connected load of 22 kW on the 3 AC 440 V 50–60 Hz supply, protected by a 50 A fuse rating. The ability to tie the unit into a peak-load or energy management system is relevant where laundry demand runs close to generator margins and large consumers have to be sequenced. Heat dissipation into the room is stated as 12.6 MJ/h, a figure the HVAC designer has to pick up in the ventilation and cooling calculation for a closed laundry.

Physical data matters at installation and during shipyard logistics. External dimensions are 1,110 mm in height, 2,469 mm in width and 1,441 mm in depth; gross dimensions of 1,388 mm in height, 2,576 mm in width and 1,096 mm in depth define the crate envelope that has to move from quay to laundry. Net weight is 444 kg and gross weight 521 kg. Tested operating hours are quoted at 20,000, which indicates the duty range the ironer is designed to cover before major overhaul decisions are due. Emission sound pressure at the workplace is 56 dB(A) re 20 µPa, and a recycling rate of 98 % supports decommissioning planning when the unit is finally replaced.

Padding is specified as leaf-spring padding with an ARAMID needle-felt cloth ironer cover, to maintain consistent pressure and heat transfer across the full 1,750 mm working width. The outer casing is finished in iron grey, and programme parameters are set on a touch display with defined programme parameter setting, which standardises operation between watches and sites.

Build and control

• Laundry infeed at the front, laundry outfeed at the back
• Leaf-spring padding with ARAMID needle-felt cloth ironer cover
• Touch display control system
• Setting of defined programme parameters
• Electric heating with 21.4 kW heater rating and 22 kW total connected load
• Electrical connection 3 AC 440 V 50–60 Hz with 50 A fuse rating
• Specified for offshore installations
• Specified and approved for shipboard use
• Can be tied into a peak-load / energy management system
• Outer casing in iron grey
• Recycling rate of 98 %

This unit is the right choice where a vessel runs enough flatwork to utilise a 1,750 mm roller at up to 104 kg/h and can allocate a 2,469 × 1,441 mm footprint with rear access and the stated 4,356 N floor load to a single ironer. It is the wrong choice for small crew laundries that process limited linen volume or cannot support a 22 kW electrical load and 12.6 MJ/h of heat dissipation on the laundry switchboard and HVAC. Ordered under Miele material number 11606890 (article 53418107SOM, model PRI 418).