Miele Tumble Dryer PDR 944 [EL SOM] – 3 AC 230V 50/60HZ, Stainless steel

An 800 litre drum and a maximum evaporation capacity of 37.2 l/hour put the Miele PDR 944 into the heavy-duty end of a shipboard laundry. With a load size of 32 kg at a 1:25 ratio, or 44 kg at 1:18, it is built for full bags of workwear, linen or PPE in each cycle rather than the small batches of a cabin deck machine.

On board, the combination of 28 minutes programme duration and a specific energy consumption of 0.52 kWh/kg is what sets the throughput and the electrical load this dryer presents to the ship’s plant. A 37.7 kW total connected load at 3 AC 230V 50/60HZ and a 36 kW electric heater rating mean this is not a marginal consumer on a small switchboard; it belongs where there is planned capacity in the distribution and in the ventilation, because an exhaust-air system at this scale needs a duct route and make-up air agreed in the design. The 4 MJ/h of heat dissipation into the room also needs to be carried by the laundry HVAC rather than left as a surprise during commissioning.

Physically, the PDR 944 stands 1640 mm high, 1206 mm wide and 1385 mm deep, with a gross shipping envelope of 1766 × 1390 × 1474 mm to clear doorways and lifts during installation. Net weight is 294.3 kg with a gross weight of 312 kg, and the maximum floor load is quoted at 3535 N, so the naval architect can check the deck structure under its footprint. The front-loader layout with a 520 mm door opening diameter, 180° opening angle and left-hand hinge allows direct transfer from a matching washer bank without crossing the workflow. Emission sound pressure level at 63 dB(A) re 20 µPa keeps noise manageable in a manned laundry.

Miele positions this as a Benchmark Series, Performance Plus range machine specified and approved for shipboard use and offshore installations. The 40000 service life in drying cycles, residual moisture-controlled user interface and the ability to handle items such as 16 respirator masks, 6 overalls, 9 over jackets, 4 synthetic duvets, 8 synthetic pillows, 4 down duvets, 8 down pillows, 727 cloths at 22 g, and a range of mop formats per load reflect that it is sized for central facilities handling mixed textile types. The published capacities for 168 cotton mops at 40 cm, 145 at 50 cm, 267 microfibre mops at 40 cm, 188 at 50 cm, 373 office mops at 100 g, 248 stairway mops at 150 g and 5 summer horse blankets give a realistic picture of how many pieces can be turned in a 28 minute programme aboard.

Build and control

• Specified for offshore installations
• Specified and approved for shipboard use
• Remaining cycle time display
• Communication slot for network modules
• Prepared for a payment system (self-service laundries)
• Optical service interface for diagnostics
• Can be tied into a peak-load / energy management system
• WiFi networking
• Connector Box for external systems

This dryer fits a vessel with a central laundry that needs to move 32–44 kg loads on a 28 minute cycle and already has ductwork and electrical infrastructure sized for a 37.7 kW exhaust-air machine at 3 AC 230V 50/60HZ. It is not the right choice where there is no practical route for exhaust air or where the laundry requirement is limited to a few kilograms per day; in those cases a smaller capacity or a different drying system should be considered. Ordered under Miele article number 52944019SOM / material number 11934850.