Miele Washing Machine PWM 912 [EL DV DD SOM] – 12 kg, 3 AC 400V 50 HZ, Stainless steel

Twelve kilograms at a 1:9 load ratio in a 110 l drum puts the Miele PWM 912 into the main production slot of a shipboard or offshore laundry. One charge can take 64 cotton mops at 190 g or 289 cloths at 22 g, so a single machine can clear a deck’s cleaning textiles in one pass instead of several.

For a vessel, the electrical and structural data decide whether the machine fits the plant and the deck. The PWM 912 is an electrically heated Benchmark series front loader in the Performance Plus range, with an electrical connection of 3 AC 400V 60 HZ, a 9 kW heater rating and a 9.6 kW total connected load on a 16 A fuse rating. Net weight is 281 kg with a maximum floor load of 4424 N, so the naval architect can size deck plating, foundations and any vibration mounts without assumptions. Heat dissipation into the room is 6.48 MJ/h and the emission sound pressure level at the workplace is 65 dB(A) re 20 µPa, figures that feed straight into HVAC and noise-exposure calculations in a compact laundry.

Utilities consumption is central on a ship making its own water and power. On a cold-water connection the PWM 912 uses 6.2 l/kg, or 74.4 l per standard cycle, at a specific energy consumption of 0.14 kWh/kg with 1.68 kW per cycle. The ECO programme on cold water reduces this to 69.6 l and 1.2 kW with a 34 minute duration. Where a hot feed is available, specific water consumption is 5.9 l/kg with 70.8 l per cycle, and specific energy drops to 0.06 kWh/kg with 0.72 kW per cycle; in ECO hot-water mode the figures are 68.4 l and 0.36 kW with a 31 minute cycle time. Programme duration with a cold-water connection is 49 minutes, falling to 42 minutes with both cold and hot water connected, so the watch can translate the table straight into loads per watch.

Cleaning-textile cycles drive many offshore and ferry laundries. The 60 °C mops standard programme with a cold-water connection runs for 54 minutes using 142.2 l of water and 2.5 kWh of energy; with a hot-water connection it completes in 47 minutes with 139.9 l and 1 kWh. The 1205 rpm spin delivers a g factor of 504, with residual moisture of 46% after a cold rinse and 42% after a hot rinse. When processing cleaning cloths, residual moisture is 25%, which sets the dryer sizing if the aim is to avoid queues on the drying side.

The stainless steel front and control panel suit the cleaning regime of a marine laundry. External dimensions of 1350 × 799 × 924 mm (H×W×D) define the operating footprint, while gross dimensions of 1475 × 1090 × 1130 mm are the figures to check against doors, hatches and lifts when routing the 300 kg shipping unit aboard. A 415 mm door opening with a 180 degree swing on a right-hand hinge keeps loading workable even where the machine sits close to a bulkhead. Tested operating hours are 30000 and the recycling rate is 91%, which helps when planning service life, refit windows and eventual disposal.

Build and control

• Front loader construction in the Benchmark series, Performance Plus range
• Stainless steel front and stainless steel control panel
• M Touch Pro Plus control system, freely programmable
• Automatic door lock
• Specified for offshore installations
• Specified and approved for shipboard use
• Independently tested virucidal efficacy and verified hygiene performance
• Thermal disinfection rinse programme
• EcoSpeed wash rhythm for reduced water use
• Continuous wash temperature monitoring
• Three-dimensional imbalance monitoring
• Remaining cycle time display and detergent empty sensor
• Detergent drawer with 4 compartments
• Electric heating with 9 kW heavy-duty heater element

This washer is the right choice where a 12 kg body with documented hygiene performance, disinfection programmes and a 3 AC 400V 60 HZ supply matches the laundry profile, with a steady flow of mops, cloths and workwear. It is the wrong choice where routine single-batch loads exceed 12 kg, where the laundry space is narrower than the 799 mm width or shallower than the 924 mm depth, or where the available electrical supply does not provide 3 AC 400V 60 HZ at 16 A. Ordered under Miele article number 51912008SOM and material number 11682910.