Miele Rotary Ironer PRI 318 [EL SOM LAM IB RF] – 3 AC 450V 50-60HZ, Octoblue

Eighty-seven kilograms per hour at 25% residual moisture on a 1,750 mm working width sets the PRI 318 up for a full ship’s linen route rather than just crew uniforms. With a 300 mm roller and an ironing speed range from 1.2 to 4.6 m/min, the machine gives the laundry manager scope to trade speed against finish quality in a controlled way.

On board, the electrical and space demands are usually the deciding factors for a rotary ironer. This unit is specified for 3 AC 440V 50–60HZ with a total connected load of 18.3 kW and a fuse rating of 35 A, so it fits directly into a typical 440 V shipboard distribution without a transformer. Heat dissipation into the room is quoted at 10.8 MJ/h, a figure the HVAC designer needs to absorb into the laundry ventilation and cooling calculation. Externally it measures 1110 × 2469 × 1377 mm (H×W×D), so the space planning must allow for nearly 2.5 m of width plus safe access on the infeed and outfeed sides.

The PRI 318 is constructed with laundry infeed at the front and laundry outfeed at the back. That flow suits a through-laundry layout where soiled textiles enter on one side and exit finished on the other, keeping personnel and trolley routes cleanly separated. The unit is tested to 20000 operating hours, which is relevant on vessels planning continuous daily use across long intervals between dry-dockings. Net weight is 415 kg with a maximum floor load of 4071 N, so the deck structure under the machine has to be checked against those numbers during design and class review.

From an energy and operation standpoint, the electric heater rating is 17 kW within the 18.3 kW total load, and the range of controlled ironing speeds from 1.2 to 4.6 m/min lets the operator match the heat input to the moisture content of the load. Maximum ironing performance is 87 kg/h at 25% residual moisture and 51 kg/h at 50% residual moisture, figures that make clear how heavily throughput depends on upstream extraction performance. Emission sound pressure level at the workplace is specified at 56 dB(A) re 20 µPa, which is low enough to keep the laundry workable as a communication space during operation.

Build and control

• Construction type with laundry infeed at the front and laundry outfeed at the back
• Touch display control system with setting of defined programme parameters
• Roller diameter 300 mm with 1,750 mm working width
• Leaf-spring padding with ARAMID needle-felt cloth ironer cover
• Electric heating with 17 kW heater rating and 18.3 kW total connected load
• Electrical connection 3 AC 440V 50–60HZ with 35 A fuse rating
• Tested operating hours of 20000
• Heat dissipation into the room 10.8 MJ/h
• Emission sound pressure level 56 dB(A) re 20 µPa
• Net weight 415 kg and maximum floor load 4071 N
• Recycling rate 98 %
• Specified for offshore installations
• Specified and approved for shipboard use
• Can be tied into a peak-load / energy management system

This model fits best where there is a dedicated linen stream and a clearly separated two-sided laundry layout, and where a 3 AC 440V 50–60HZ supply is already planned. It is not the right choice for very small vessels without the deck width for a 2469 mm machine or where front-return operation is required to keep all handling on one side. Ordered under Miele material number 11156050 and article number 53318006SOM.