Miele Washing Machine PWM 935 [EL DV DD SOM] – 35 kg, 3N AC 400V 50HZ, Stainless steel

Thirty‑five kilograms at a 1:9 load ratio in a 320 l drum puts the PWM 935 at the heavy end of a shipboard laundry, taking bulk linen, PPE and cleaning textiles in one batch. A spin speed of 1060 rpm with a g‑factor of 502 then drives residual moisture down to 51% on a cold rinse and 44% on a hot rinse, or as low as 14% when processing cleaning cloths.

On board, utilities and structure set the envelope for a washer of this size. The electrical connection is 3N AC 400V 60HZ with a 31.6 kW total connected load and 30 kW heater rating, protected by a 63 A fuse rating, so the main switchboard and local distribution have to be planned early. Net weight is 658 kg with a maximum floor load of 9458 N; that figure is what the naval architect checks against deck scantlings and any raised laundry platform. External dimensions of 1646 x 1090 x 1275 mm (H x W x D) grow to 1793 x 1365 x 1425 mm gross for transport, which is often the critical number for stairwells and hatches during installation.

Water and energy figures are published for both cold and hot feeds so the vessel’s fresh‑water, hot‑water and wastewater systems can be sized. With a cold water connection the standard programme draws 262.5 l at 7.5 l/kg, with specific energy consumption of 0.22 kWh/kg and a 61 minute programme duration; hot water connection holds the same 7.5 l/kg, with 261.6 l total and 0.06 kWh/kg specific energy, and brings the time down to 49 minutes. The ECO programme takes 242 l and 5.3 kWh with cold water over 44 minutes, or 243.6 l and 0.76 kWh with hot water over 37 minutes. For the Mops standard 60 °C programme, cold water use rises to 422.3 l with 7.95 kWh over 59 minutes, while hot water use is 427.3 l with 2.59 kWh over 52 minutes.

The published textile load examples translate that capacity into planning numbers for the laundry schedule. One cycle can handle 800 cloths of 22 g, 184 cotton mops at 40 cm / 190 g, or 159 cotton mops at 50 cm / 220 g. For cabin linen and bedding the same drum takes 4 synthetic duvets and 8 synthetic pillows, or 4 down duvets and 8 down pillows. PPE‑heavy laundries can plan around 26 respirator masks, 10 helmets, 6 overalls, 9 over jackets, 4 chemical protection suits and 5 summer horse blankets per load.

In a confined laundry the machine’s 6.1 MJ/h heat dissipation into the room and 71 dB(A) emission sound pressure level are part of the HVAC and acoustic calculation. The front loader construction with a 415 mm door opening diameter and 180° opening angle on a right‑hand hinge gives straightforward access for loading heavy textiles and for maintenance. Tested operating hours of 30000 give a design life that suits vessels where dry‑dock opportunities are spaced out.

Build and control

• Stainless steel front and control panel
• Benchmark series, Performance Plus range with M Touch Pro Plus control system
• Freely programmable controls with remaining cycle time display
• Automatic door lock
• Specified for offshore installations and specified and approved for shipboard use
• Independently tested virucidal efficacy and verified hygiene performance
• Thermal disinfection rinse programme with continuous wash temperature monitoring
• EcoSpeed wash rhythm for reduced water use
• Three‑dimensional imbalance monitoring
• Detergent drawer with 4 compartments and detergent empty sensor
• Display language switchable at any time
• Cold water connections: 4 x 1/2" with 3/4" union; hot water: 2 x 1/2" with 3/4" union; optional hard water: 2 x 1/2" with 3/4" union

This is the right washer where a vessel runs a centralised laundry with high volumes of linen, workwear, mops and PPE and has electrical and structural provision for a 35 kg, 31.6 kW machine. It is the wrong choice for small crew laundries or passenger self‑service areas that cannot accept a 658 kg appliance, a 9458 N floor load or a 1090 mm‑wide, 1275 mm‑deep footprint. Ordered under Miele article number 51935001SOM / material number 12887680, designation PWM 935 [EL DV DD SOM].