Miele Washing Machine PWM 935 [EL DV DD SOM] – 35 kg, 3 AC 230V 50HZ, Stainless steel

Thirty-five kilograms at a 1:9 load ratio in a 320 litre drum puts the PWM 935 into the high-capacity bracket for a shipboard laundry. A spin speed of 1060 rpm with a g factor of 502 is specified to leave 51% residual moisture after a cold rinse, 44% after a hot rinse and 14% when processing cleaning cloths.

Those residual moisture values sit directly under the dryer and ventilation calculation. A 44% hot-rinse residual on workwear and 14% on cleaning textiles constrain dryer drum volumes, duct sizing and the make-up air the laundry HVAC has to move. Heat dissipation is listed at 6.1 MJ/h and the emission sound pressure level at the workplace is 71 dB(A) re 20 µPa, so the thermal and acoustic load from a running machine is known at design stage rather than left to guesswork.

Water and energy use are specified for both cold and hot feeds. On a cold connection the PWM 935 uses 7.5 l/kg and 0.22 kWh/kg, giving 262.5 litres and 7.6 kW for a full standard cycle over 61 minutes. On a hot connection the specific water consumption stays at 7.5 l/kg but energy drops to 0.06 kWh/kg, giving 261.6 litres and 2.16 kW with a 49 minute programme. ECO programmes lower these figures to 242 litres and 5.3 kW on cold, or 243.6 litres and 0.76 kW on hot, with programme durations between 37 and 44 minutes depending on connection.

For mops and cleaning textiles, the Mops standard 60 °C programme is specified separately. With a cold feed it uses 422.3 litres and 7.95 kWh over 59 minutes; on hot, 427.3 litres and 2.59 kWh over 52 minutes. Capacity data list 184 cotton mops at 40 cm / 190 g, 159 at 50 cm / 220 g, 292 microfibre mops at 40 cm / 120 g and 206 at 50 cm / 170 g in a single load. The same schedule quotes 26 respirator masks, 10 helmets, 6 overalls, 9 over jackets, 4 chemical protection suits, 800 cloths at 22 g, 4 synthetic duvets, 8 synthetic pillows, 4 down duvets, 8 down pillows and 5 summer horse blankets, so the volume it can clear per cycle is explicit.

Electrically this variant is an EL machine with a 24 kW heater rating and 25.6 kW total connected load. Supply is 3 AC 230V 60HZ with an 80 A fuse rating. Four cold water inlets, two hot water inlets and two optional hard water inlets are provided, all 1/2" with 3/4" unions, so potable, hot and treated feeds can be kept separate where the ship’s ring main allows. Tested operating hours are quoted at 30000, which is the number a superintendent uses when balancing capital spend against duty cycle and maintenance budget over the life of the vessel.

The mechanical footprint and mass matter for a deck-supported installation. External dimensions are 1646 x 1090 x 1275 mm (H x W x D), with gross transport dimensions of 1793 x 1365 x 1425 mm. Net weight is 692 kg, gross 749 kg, with a maximum floor load of 9792 N, so structural support can be checked early against the ship’s scantlings.

Build and control

• Automatic door lock
• Specified for offshore installations
• Specified and approved for shipboard use
• Independently tested virucidal efficacy
• Verified hygiene performance
• Remaining cycle time display
• Display language switchable at any time
• Detergent empty sensor
• Three-dimensional imbalance monitoring
• Thermal disinfection rinse programme
• EcoSpeed wash rhythm for reduced water use
• Continuous wash temperature monitoring
• Front loader construction with stainless steel front and control panel
• Benchmark series, Performance Plus range with M Touch Pro Plus control
• Freely programmable control with 4-compartment detergent drawer
• Tested for 30000 operating hours

This unit fits vessels that can routinely load a 35 kg drum, allocate 25.6 kW at 3 AC 230V 60HZ and accept the 9792 N floor load together with the quoted heat and noise. It is the wrong choice for laundries built around small, frequent batches that seldom reach this load or where installed power at 3 AC 230V 60HZ and deck strength are tighter; in those cases a smaller body matches water, energy and structure more closely. Ordered under Miele designation PWM 935 [EL DV DD SOM], article number 51935021SOM / material number 12887780.