per maggiori informazioni dal produttore.<\/span><\/h3>\n","weight":"26000","bottle_entry":{"value":"0","label":"Single"},"cleaning_type":{"value":"0","label":"Pulp"},"n\u00b0_soda_baths":{"value":"0","label":"1"},"custom_speed_and_unit":{"custom_speed":"","unit":""},"speed":"22000","machine":[{"machine_type":{"term_id":7093,"name":"Bottle Washer","slug":"used-bottle-washer","term_group":0,"term_taxonomy_id":7093,"taxonomy":"machine_types","description":"A bottle washer<\/strong> is an industrial machine designed for cleaning returnable glass bottles<\/strong> in bottling operations. These machines handle containers from mineral water<\/strong>, wine<\/strong>, spirits<\/strong>, soft drinks<\/strong>, fruit juices<\/strong>, and milk<\/strong> production lines, removing labels, residues, and contaminants while ensuring proper sterilization.<\/p>\r\n\r\nModern bottle washers can process both paper labels<\/strong> and wash-off plastic labels<\/strong>. Plastic labels offer significant advantages including lower washing temperatures, reduced chemical usage, and elimination of label pulping in the water, though at a higher label cost.<\/p>\r\n\r\nTypes of Bottle Washing Machines<\/h2>\r\n\r\nSingle-End Bottle Washers<\/h3>\r\n\r\n
Single-end bottle washers<\/strong> (also called single-head<\/em>) feature bottle entry and exit on the same side of the machine. Key characteristics include:<\/p>\r\n\r\n\r\n - Production capacity up to 30,000 bottles per hour<\/strong><\/li>\r\n
- Single large alkaline wash bath<\/strong> followed by rinse stages<\/li>\r\n
- Compact footprint for small to medium operations<\/em><\/li>\r\n
- Lower capital investment compared to double-end systems<\/li>\r\n<\/ul>\r\n\r\n
Double-End Bottle Washers<\/h3>\r\n\r\n
Double-end bottle washers<\/strong> (or double-head<\/em>) are structured with bottle entry at one end and exit from the opposite side. These machines offer superior performance:<\/p>\r\n\r\n\r\n - Production capacity exceeding 100,000 bottles per hour<\/strong><\/li>\r\n
- Modular construction<\/strong> with 3 to 5 identical washing modules<\/li>\r\n
- Higher washing performance and quality guarantees<\/li>\r\n
- Multiple alkaline baths for thorough cleaning<\/li>\r\n<\/ul>\r\n\r\n
Temperature Management<\/h2>\r\n\r\n
All bottle washers maintain a precise temperature gradient<\/strong> to prevent thermal shock<\/strong> and glass breakage. The process brings containers from ambient temperature (potentially very cold in winter storage conditions) up to approximately 80\u00b0C<\/strong> in the caustic baths, then gradually returns them to room temperature before discharge.<\/p>\r\n\r\nAn alkalinity gradient<\/strong> runs parallel to the temperature curve, designed to recover caustic soda that would otherwise be lost through carryover. Water from the first rinse returns to the pre-wash tank for reuse, providing both heat recovery and chemical efficiency.<\/p>\r\n\r\nWashing Process Stages<\/h2>\r\n\r\nBottle Inlet System<\/h3>\r\n\r\n
The most common feeding system uses harpoon loaders<\/strong> with elliptical movement, automatically transferring bottles from the accumulation area to washing baskets. Features include:<\/p>\r\n\r\n\r\n - High-density plastic profiles<\/strong> ensuring quiet operation<\/li>\r\n
- Safety mechanisms preventing bottle and basket breakage<\/li>\r\n
- Special auger feeding systems<\/strong> for shaped bottles (rectangular, square, oval)<\/li>\r\n
- Interchangeable baskets<\/strong> accommodating multiple bottle formats<\/li>\r\n<\/ul>\r\n\r\n
Pre-Wash Section<\/h3>\r\n\r\n
Upon entering the machine, bottles receive alkaline spray<\/strong> or immersion using warm water from the first rinse. This stage accomplishes two objectives:<\/p>\r\n\r\n\r\n - Gradual temperature increase<\/strong> of the glass<\/li>\r\n
- Initial label wetting<\/strong> with alkaline solution<\/li>\r\n<\/ul>\r\n\r\n
The pre-wash solution contains hardness control additives<\/strong> preventing salt precipitation.<\/p>\r\n\r\nCaustic Washing Baths (Pulp)<\/h3>\r\n\r\n
The caustic baths<\/strong> perform the primary cleaning function, eliminating internal impurities, detaching labels, removing glue residues, and sterilizing bottles<\/strong> through hot soda exposure. The washing result depends critically on these pulp<\/em> stages.<\/p>\r\n\r\nOptimal label removal depends on several factors:<\/p>\r\n\r\n
\r\n - Glue type<\/strong> \u2014 modern starch-casein glues dissolve effectively in soda solutions starting from 1% concentration<\/strong><\/li>\r\n
- Soda concentration<\/strong> \u2014 effective range between 1.5% and 3%<\/strong>; above 2% viscosity increases, reducing efficiency<\/li>\r\n
- Temperature<\/strong> \u2014 below 60\u00b0C labels won't release; optimal removal occurs at 80\u00b0C<\/strong><\/li>\r\n
- Label structure<\/strong> \u2014 paper quality, ink composition, and waxy coatings affect detachment<\/li>\r\n<\/ul>\r\n\r\n
Label Extraction<\/h3>\r\n\r\n
All bottle washers feature a two-stage label extraction<\/strong> system:<\/p>\r\n\r\n\r\n - First stage<\/strong> \u2014 activated after approximately 40% of caustic treatment time, a solution current removes about 30% of labels<\/strong><\/li>\r\n
- Second stage<\/strong> \u2014 positioned at the end of caustic treatment, high-pressure sprays<\/strong> from removable nozzles remove the remaining 70% of labels<\/strong><\/li>\r\n<\/ol>\r\n\r\n
Extracted labels travel to a filtering mat<\/strong> crossing the machine transversely, conveying paper residues outside.<\/p>\r\n\r\nExtraction timing is critical:<\/p>\r\n\r\n
\r\n - Too fast extraction<\/strong> \u2014 causes label pulping<\/em>, clogging filters and leaving fragments in bottles<\/li>\r\n
- Too slow extraction<\/strong> \u2014 results in labels exiting beyond the second module with glue traces remaining on glass<\/li>\r\n<\/ul>\r\n\r\n
Pre-Rinse Section<\/h3>\r\n\r\n
Modern bottle washers include a dedicated sector for alkalinity reduction<\/strong> and heat recovery<\/strong>. This section improves rinsing efficiency and controls limestone precipitation<\/strong> from inorganic salts.<\/p>\r\n\r\nTreatment depends on the circuit configuration:<\/p>\r\n\r\n
\r\n - Static tank<\/strong> (filled morning, emptied evening) \u2014 treated as a washing bath with soda additive<\/li>\r\n
- Continuous fresh water replenishment<\/strong> \u2014 treated as a rinse with sequestering agent dosed proportionally<\/li>\r\n<\/ul>\r\n\r\n
Rinsing Section<\/h3>\r\n\r\n
The rinsing section<\/strong> typically comprises 3 to 4 stages<\/strong>, eliminating soda residues and ensuring bottles exit in potable condition. The final rinse uses the same water destined for bottling.<\/p>\r\n\r\nCritical considerations:<\/p>\r\n\r\n
\r\n - Water hardness<\/strong> \u2014 causes calcium carbonate precipitation; requires sequestering additives<\/strong> if water is not softened<\/li>\r\n
- Microbial control<\/strong> \u2014 rinse area favors bacterial growth due to warm temperature and neutral pH<\/li>\r\n
- Biocide treatment<\/strong> \u2014 added to second or penultimate rinse to sanitize bottles and maintain bacteriostatic conditions<\/em><\/li>\r\n<\/ul>\r\n\r\n
Nozzle System<\/h3>\r\n\r\n
Self-cleaning nozzles<\/strong> direct spray radially toward each basket row. The self-cleaning effect eliminates manual disassembly through water flow inversion and continuous particle removal. Spray direction ensures complete coverage:<\/p>\r\n\r\n\r\n - Internal bottle side<\/li>\r\n
- Bottle bottom<\/li>\r\n
- Opposite internal side<\/li>\r\n<\/ol>\r\n\r\n
A synchronization star<\/strong> beside each nozzle row maintains perfect alignment between sprays and bottles, compensating for chain elongation.<\/p>\r\n\r\nBottle Discharge<\/h3>\r\n\r\n
The unloading system transfers bottles from baskets to discharge cams<\/strong> with elliptical movement, placing them onto the conveyor belt. Chutes and cams use high-density polyethylene<\/strong> for quiet operation and durability.<\/p>\r\n\r\nThe discharge area requires special attention due to humidity, steam, warm environment, and neutral pH creating favorable conditions for microbial development<\/strong>. Daily cleaning and sanitizing treatments<\/strong> of internal and external surfaces prevent contamination of clean bottles.<\/p>\r\n\r\nOptional Systems and Features<\/h2>\r\n\r\nSoundproofing<\/h3>\r\n\r\n
Loading and unloading areas can be equipped with noise reduction devices<\/strong> improving operator safety conditions.<\/p>\r\n\r\nThermal Insulation<\/h3>\r\n\r\n
Operating temperatures between 60\u00b0C and 80\u00b0C<\/strong> make insulation valuable. Polyurethane panel systems<\/strong> with stainless steel edge support can achieve energy savings approaching 20% of total consumption<\/strong>.<\/p>\r\n\r\nWastewater Filtration<\/h3>\r\n\r\n
Two systems extend pulp bath life cycle:<\/p>\r\n\r\n
\r\n - Sedimentation tank<\/strong> \u2014 end-of-day solution transfer for medium-low or high-pressure filtration<\/li>\r\n
- Vibrating screen<\/strong> \u2014 continuous filtration during operation, retaining glass and paper particles<\/li>\r\n<\/ul>\r\n\r\n
Acid Washing Sector<\/h3>\r\n\r\n
Some machines include an acid spray section<\/strong> between caustic wash and final rinse, using nitric acid formulations<\/strong> to eliminate inorganic residues and provide steel surface passivation. Periodic antimicrobial control prevents mold formation in acidic pH environments.<\/p>\r\n\r\nChemical Products for Bottle Washing<\/h2>\r\n\r\n
Standard chemical formulations used in bottle washers include:<\/p>\r\n\r\n
\r\n - Caustic soda additives<\/strong> \u2014 facilitate label detachment<\/li>\r\n
- Foam control additives<\/strong> \u2014 manage foam from casein-origin glues<\/li>\r\n
- Alkaline formulations<\/strong> \u2014 alternative to NaOH + additive systems<\/li>\r\n
- Sequestering additives<\/strong> \u2014 control water hardness in rinse baths<\/li>\r\n
- Sanitizing formulations<\/strong> \u2014 treat bottles at outlet and maintain bacteriostatic tank conditions<\/li>\r\n<\/ul>\r\n\r\n
Additional performance-enhancing formulations:<\/p>\r\n\r\n
\r\n - Enhanced label detachment<\/strong> additives<\/li>\r\n
- Additives for mold and dried residue<\/strong> removal<\/li>\r\n
- Acid additives<\/strong> to reduce first rinse alkalinity<\/li>\r\n<\/ul>\r\n\r\n
Sequestering Agents<\/h3>\r\n\r\n
Sequestering (chelating) agents<\/strong> bind dispersed ions and salts, preventing limescale deposition on surfaces. These compounds assist in mold removal and aluminum salt control for improved label detachment.<\/p>\r\n\r\nEDTA<\/strong> forms stable chelates with calcium and magnesium, preventing limestone formation. However, EDTA requires careful dosage calculation and can increase glass corrosion<\/strong> over multiple washing cycles.<\/p>\r\n\r\nGluconates and gluconic acid<\/strong> offer polyfunctional activity in the 1% to 3% alkalinity range<\/strong>, specifically targeting aluminum and its salts (trivalent metals EDTA cannot bind). Gluconates also assist in rust collar removal<\/em> caused by crown caps.<\/p>\r\n\r\nDefoamers<\/h3>\r\n\r\n
Defoamer products<\/strong> control foam generated by mechanical action and starch-casein glue. Foam management prevents pump cavitation, probe interference, and ensures detached labels are properly extracted rather than floating to final machine sections.<\/p>\r\n\r\nSterilization Parameters<\/h2>\r\n\r\n
Correct bottle washer operation depends on optimizing three intersected parameters:<\/p>\r\n\r\n
\r\n - Caustic soda concentration<\/strong> (alkalinity) in washing baths<\/li>\r\n
- Operating temperatures<\/strong> of washing solutions (70\u00b0C to 90\u00b0C)<\/li>\r\n
- Contact time<\/strong> between caustic solutions and bottles (basket movement speed)<\/li>\r\n<\/ul>\r\n\r\n
These parameters ensure both excellent washing results<\/strong> and