§ 01 Washer-extractors for on-premises laundries
FreshLine designs and builds commercial and industrial washer-extractors for laundries that run on site: hotels, hospitals, fire stations, laundromats, athletic programs, and plants.
§ 01.1 / Inside the drum
Every wash is chemistry, temperature, time, and mechanical action. A washer-extractor controls all four, then spins the water out before the dryer has to remove it.
We design and build washer-extractors for on-premises laundries. Soft-mount and hard-mount machines, barrier washers for laundries that keep soiled and clean rooms apart, and the controls that tie every wash to its chemistry.
Four categories, and the floor, the walls, and the goods decide between them. Hover a column to compare.
The wash shell floats on springs and dampers inside the frame, so vibration stays in the machine instead of the building.
A rigid frame bolted and grouted to reinforced concrete. The foundation takes the forces the suspension would otherwise absorb.
Built into the wall between a soiled room and a clean room. Goods load on one side and unload on the other.
Programmable formulas set water level, temperature, time, and action for each step, and signal the pumps that dose chemistry.
Relative G-force at the drum wall
Water level
Inlet valves open and water enters to the level the formula calls for. Detergent and other chemistry are injected, and the water is brought to temperature by the building supply, steam, or an electric heater, depending on the machine.
The drum turns at a speed that keeps the force at its wall below 1 G, reversing at set intervals. Lifters carry the load up and drop it back through the water. That repeated fall is the mechanical action that loosens soil.
The drain valve opens and the wash water leaves. The drum refills with clean water, often more than once, with short spins between baths to carry out soil and residual chemistry.
With the drain open, the drum first spreads the load evenly at a distribution speed just above 1 G, then accelerates. Centrifugal force drives water through the perforations. The higher the G-force, the less water goes to the dryer.
Illustration of a typical cycle. Formulas, speeds, and times vary by machine, goods, and chemistry.
A hotel, a fire station, and a uniform plant all wash textiles. What they need from a machine is not the same.
Sheets and towels every day, on a schedule set by checkout.
Hygienically clean linen, and a soiled side kept apart from the clean side.
Turnout gear cleaned without damaging the layers that protect the firefighter.
Machines that customers run all day, mostly unattended.
Towels and uniforms in heavy, wet loads, often turned around overnight.
Heavy soil, heavy loads, and long shifts.
Five priorities that shape every FreshLine machine, before color, trim, or options.
Water left in the load is work handed to the dryer. Evaporating a pound of water takes roughly 1,000 Btu, so the extract step deserves as much engineering as the wash.
Whether the shell floats on a suspension or the frame bolts to concrete, the structure has to manage an out-of-balance load at full speed, every cycle.
Fill levels, temperatures, and rinse counts belong in the formula, set for the goods and the soil rather than left at a generic default.
The parts that wear, such as gaskets, belts, valves, and bearings, should be reachable and replaceable without moving the machine.
Programmable steps and clean dosing signals, so the chemistry supplier can run the formula they intended.
Two calculators with the formulas in plain view. Both give estimates to start a conversation, not a final specification.
lb per hour = lb per day ÷ hours
lb per cycle = lb per hour × cycle min ÷ 60
Example: 1,200 lb a day over 8 hours = 150 lb per hour. With 45-minute cycles, that is 112.5 lb of washer capacity per cycle, before any margin, split across two or more machines.
Open the planner T-02 / G-force calculatorG = 0.0000142 × D (in) × rpm²
rpm² × D ÷ 70,500, the form many manufacturers publish
Example: a 30-inch drum at 800 rpm: 0.0000142 × 30 × 640,000 = about 273 G.
Open the calculatorPounds per day, hours of operation, the room, and the goods. We reply by email with the questions that matter for sizing and installation.
contact@freshlinewashers.com
