Products > Biopharmaceutical Equipment: Cleaning

Tunnel Washers

Tunnel Washer. A tunnel washer, also called a continuous batch washer, is an industrial laundry machine designed to handle heavy loads. The machine consists of a long metal tube called a tunnel. A huge metal archimedes screw runs down the center of the tunnel, dividing it into pockets. As the screw rotates, linen is forced through the tunnel. Since the screw is made of porous metal, laundry can move through the washer in one direction while water and chemicals are forced through in the other. As a result, the linen moves through pockets of progressively cleaner water and fresher chemicals. Soiled linen continuously goes into one end of the tunnel while clean linen moves continuously out of the other.

Things to Consider When Purchasing This Product:

Belt width, Tunnel inside dimensions, Overall dimensions, Length, Dryer section option dimensions, Spray header design, Solution strainers design, Automatic temperature regulation and guaranteed temperature phases, Safety features and certifications, OSHA-style emergency stop buttons at operator control panel and machine exit, Magnetic safety switches on doors, Electrical components UL listed and/or approved, Fault conditions have to identified (Emergency stop/Door open/Heat fault/Fill fault), Automatic ball valves under pneumatic control, Electric-motor-operated ball valves not acceptable, Automtic water ans steam control valve direct-operated pneumatic, Pilot-operated solenoid valves or any valve with diaphragm-type sealing system not acceptable, Microprocessor control design, Controls in accordance with NEMA/UL/NEC standards, Insulated exterior with 2 inches of rigid insulation covered by stainless steel jacket, Positve door gasketing, Welded construction below overflow level, Materials of construction, Electrical requirements and power, Steam fittings/pressure range/flow rate, Condensate fittings, Hot water fittings/temperature range/flow rate, Drain fittings/temperature range/flow rate, Exhaust vent fittings/ temperature and humidity range/flow rate, Compressed air fittings and pressure rating, Air flow rate, Cold water fittings/pressure, Shipping weight, Operational weight, Cage capacity, Wash and rinse tank capacities, Heat radiation rates from washer ends and sides