{"id":5343,"date":"2026-09-24T14:40:03","date_gmt":"2026-09-24T22:40:03","guid":{"rendered":"https:\/\/dez-smt.com\/?p=5343"},"modified":"2026-10-07T02:29:29","modified_gmt":"2026-10-07T10:29:29","slug":"what-is-a-pcb-cleaning-machine","status":"publish","type":"post","link":"https:\/\/dez-smt.com\/ar\/what-is-a-pcb-cleaning-machine\/","title":{"rendered":"\u0645\u0627 \u0647\u064a \u0622\u0644\u0629 \u062a\u0646\u0638\u064a\u0641 \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 \u0648\u0645\u062a\u0649 \u062a\u0633\u062a\u062e\u062f\u0645\u061f"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A <strong>PCB cleaning machine<\/strong> removes defined contamination from printed circuit boards during electronics manufacturing. Depending on the production stage, it may clean dust from bare PCBs before solder paste printing or remove flux residue, loose solder balls and other process contamination from assembled PCBAs after soldering.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In global equipment sourcing, <strong>PCB cleaning machine<\/strong> is commonly used as a broad purchasing term. Buyers may use it when searching for bare-board cleaners, PCBA brush cleaners, batch washers or inline aqueous cleaning systems. The equipment must therefore be selected according to the actual board, contamination and production process rather than the search term alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DEZ separates these applications into two equipment categories:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/dez-smt.com\/pcb-cleaning-machine\/\">PCB cleaning machines<\/a> for dry surface cleaning of bare PCBs before printing<\/li>\n\n\n\n<li><a href=\"https:\/\/dez-smt.com\/pcba-cleaning-machines\/\">PCBA cleaning machines<\/a> for assembled boards after reflow, wave, selective or manual soldering<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#pcb-cleaning-machine-or-pcba-cleaning-machine\">PCB Cleaning Machine or PCBA Cleaning Machine?<\/a><\/li><li><a href=\"#when-is-a-pcb-cleaning-machine-used\">When Is a PCB Cleaning Machine Used?<\/a><ul><li><a href=\"#before-solder-paste-printing\">Before solder paste printing<\/a><\/li><li><a href=\"#after-wave-or-selective-soldering\">After wave or selective soldering<\/a><\/li><li><a href=\"#after-reflow-soldering\">After reflow soldering<\/a><\/li><li><a href=\"#before-conformal-coating\">Before conformal coating<\/a><\/li><li><a href=\"#when-manual-cleaning-is-inconsistent\">When manual cleaning is inconsistent<\/a><\/li><\/ul><\/li><li><a href=\"#dez-pcb-and-pcba-cleaning-machine-comparison\">DEZ PCB and PCBA Cleaning Machine Comparison<\/a><\/li><li><a href=\"#dez-c753s-for-bare-pcb-surface-cleaning\">DEZ-C753S for Bare-PCB Surface Cleaning<\/a><\/li><li><a href=\"#dez-c758-and-dez-c760-for-accessible-solder-side-residue\">DEZ-C758 and DEZ-C760 for Accessible Solder-Side Residue<\/a><ul><li><a href=\"#choose-dez-c758-when\">Choose DEZ-C758 when<\/a><\/li><li><a href=\"#choose-dez-c760-when\">Choose DEZ-C760 when<\/a><\/li><\/ul><\/li><li><a href=\"#dez-c743-for-high-mix-batch-cleaning\">DEZ-C743 for High-Mix Batch Cleaning<\/a><\/li><li><a href=\"#dez-c1360-for-continuous-inline-cleaning\">DEZ-C1360 for Continuous Inline Cleaning<\/a><\/li><li><a href=\"#why-ipa-sometimes-leaves-a-sticky-or-white-film\">Why IPA Sometimes Leaves a Sticky or White Film<\/a><\/li><li><a href=\"#how-to-choose-the-correct-pcb-cleaning-machine\">How to Choose the Correct PCB Cleaning Machine<\/a><ul><li><a href=\"#1-identify-the-workpiece\">1. Identify the workpiece<\/a><\/li><li><a href=\"#2-define-the-contamination\">2. Define the contamination<\/a><\/li><li><a href=\"#3-locate-the-contamination\">3. Locate the contamination<\/a><\/li><li><a href=\"#4-confirm-whether-brush-contact-is-acceptable\">4. Confirm whether brush contact is acceptable<\/a><\/li><li><a href=\"#5-choose-batch-or-inline-production\">5. Choose batch or inline production<\/a><\/li><li><a href=\"#6-define-the-cleanliness-requirement\">6. Define the cleanliness requirement<\/a><\/li><li><a href=\"#7-check-chemistry-and-material-compatibility\">7. Check chemistry and material compatibility<\/a><\/li><li><a href=\"#8-confirm-factory-utilities\">8. Confirm factory utilities<\/a><\/li><\/ul><\/li><li><a href=\"#how-should-cleaning-results-be-verified\">How Should Cleaning Results Be Verified?<\/a><\/li><li><a href=\"#frequently-asked-questions\">Frequently Asked Questions<\/a><ul><li><a href=\"#does-no-clean-flux-ever-need-to-be-removed\">Does no-clean flux ever need to be removed?<\/a><\/li><li><a href=\"#can-di-water-remove-flux-by-itself\">Can DI water remove flux by itself?<\/a><\/li><li><a href=\"#should-i-choose-a-batch-or-inline-cleaning-machine\">Should I choose a batch or inline cleaning machine?<\/a><\/li><li><a href=\"#can-brush-cleaning-remove-residue-beneath-components\">Can brush cleaning remove residue beneath components?<\/a><\/li><li><a href=\"#what-information-does-dez-need-before-recommending-a-machine\">What information does DEZ need before recommending a machine?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 id=\"pcb-cleaning-machine-or-pcba-cleaning-machine\" class=\"wp-block-heading\"><strong>PCB Cleaning Machine or PCBA Cleaning Machine?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The important distinction is the condition of the board when it enters the machine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>PCB<\/strong> is the printed circuit board before components are assembled. At this stage, the main cleaning requirement is normally the removal of dust, fibres, hair, loose particles and static-attracted contamination before solder paste printing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>PCBA<\/strong> is a printed circuit board assembly containing components and solder joints. Cleaning after assembly may target visible flux residue, ionic contamination, fingerprints, cleaning-agent residue, solder balls or other manufacturing contamination. <\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-row gspb_row gspb_row-id-gsbp-a5a6fed\" id=\"gspb_row-id-gsbp-a5a6fed\"><div class=\"gspb_row__content\"> \n<div class=\"wp-block-greenshift-blocks-row-column gspb_row__col--6 gspb_col-id-gsbp-72dded4\" id=\"gspb_col-id-gsbp-72dded4\">\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-26e9ffc\" id=\"gspb_image-id-gsbp-26e9ffc\"><img decoding=\"async\" src=\"https:\/\/dez-smt.com\/wp-content\/uploads\/2026\/10\/PCB-Flux-residue.png\" data-src=\"\" alt=\"PCB Flux residue\" loading=\"lazy\" width=\"462\" height=\"616\"\/><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-row-column gspb_row__col--6 gspb_col-id-gsbp-847fe66\" id=\"gspb_col-id-gsbp-847fe66\">\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-77852cc\" id=\"gspb_image-id-gsbp-77852cc\"><img decoding=\"async\" src=\"https:\/\/dez-smt.com\/wp-content\/uploads\/2026\/10\/PCB-after-removal-of-flux-residue.png\" data-src=\"\" alt=\"PCB after removal of flux residue\" loading=\"lazy\" width=\"462\" height=\"616\"\/><\/div>\n<\/div>\n <\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Both may be described as circuit-board cleaning in purchasing enquiries. However, they require different cleaning mechanisms.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Production condition<\/th><th>Main problem<\/th><th>Required process<\/th><\/tr><\/thead><tbody><tr><td>Bare PCB before solder paste printing<\/td><td>Dust, fibres and loose particles on the board surface<\/td><td>Dry double-sided surface cleaning<\/td><\/tr><tr><td>Assembled PCBA after wave or selective soldering<\/td><td>Visible flux marks and loose solder balls on an accessible solder side<\/td><td>Single-sided brush cleaning<\/td><\/tr><tr><td>Mixed PCBA models after soldering<\/td><td>Flux residue requiring washing, rinsing and drying<\/td><td>Offline batch aqueous cleaning<\/td><\/tr><tr><td>Continuous PCBA production<\/td><td>Repeated washing, DI-water rinsing and drying<\/td><td>Inline aqueous cleaning<\/td><\/tr><tr><td>PCBA before conformal coating<\/td><td>Surface contamination that may affect coating application<\/td><td>Validated wash, rinse and drying process<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A dry PCB surface cleaner cannot replace a post-solder PCBA washing machine. A brush cleaner also cannot reach every area beneath components or inside narrow gaps. The machine must match the location and type of contamination.<\/p>\n\n\n\n<h2 id=\"when-is-a-pcb-cleaning-machine-used\" class=\"wp-block-heading\"><strong>When Is a PCB Cleaning Machine Used?<\/strong><\/h2>\n\n\n\n<h3 id=\"before-solder-paste-printing\" class=\"wp-block-heading\">Before solder paste printing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bare PCBs can collect dust, fibres and packaging debris during storage, unpacking, handling and loading. Static charge can attract additional particles before the board reaches the printer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A dry <strong>PCB surface cleaning machine<\/strong> is installed after the PCB loader and before the solder paste printer:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PCB Loader \u2192 PCB Cleaning Machine \u2192 Solder Paste Printer \u2192 SPI \u2192 Pick-and-Place \u2192 Reflow Oven<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The cleaning system loosens particles, reduces static attraction and collects contamination rather than simply moving it to another part of the production area.<\/p>\n\n\n\n<h3 id=\"after-wave-or-selective-soldering\" class=\"wp-block-heading\">After wave or selective soldering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Wave and selective soldering can leave visible flux marks, loose solder balls or solder spatter on the accessible solder side of a PCBA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the contaminated surface is open to direct brush contact, a single-sided PCBA cleaning machine can apply a compatible cleaner and process the surface through controlled brushing and drying.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This route is intended for accessible surface contamination. Residue beneath low-standoff components or inside shielded areas may require a complete aqueous process or another validated cleaning method.<\/p>\n\n\n\n<h3 id=\"after-reflow-soldering\" class=\"wp-block-heading\">After reflow soldering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Reflowed assemblies may require cleaning when the flux process, product specification or downstream operation does not permit the remaining residue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The decision depends on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Solder paste and flux chemistry<\/li>\n\n\n\n<li>Quantity and location of residue<\/li>\n\n\n\n<li>Component and material compatibility<\/li>\n\n\n\n<li>Electrical and environmental requirements<\/li>\n\n\n\n<li>Customer cleanliness limits<\/li>\n\n\n\n<li>Conformal-coating requirements<\/li>\n\n\n\n<li>Inspection and testing requirements<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A complete aqueous process normally includes chemical washing, DI-water rinsing and controlled drying.<\/p>\n\n\n\n<h3 id=\"before-conformal-coating\" class=\"wp-block-heading\">Before conformal coating<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Flux residue, fingerprints, oils, salts and cleaning-agent residue can interfere with coating wetting or adhesion. The PCBA must also be sufficiently dry before coating.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cleaning before conformal coating should be treated as a controlled process. The coating, flux, cleaning chemistry, rinsing method, drying conditions and cleanliness test must be evaluated together.<\/p>\n\n\n\n<h3 id=\"when-manual-cleaning-is-inconsistent\" class=\"wp-block-heading\">When manual cleaning is inconsistent<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Manual brushing and wiping depend on operator pressure, chemical quantity, brush direction, wiping material and cleaning time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Automatic PCB cleaning equipment is used when the manufacturer needs:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Repeatable process settings<\/li>\n\n\n\n<li>Controlled chemical application<\/li>\n\n\n\n<li>Consistent brush or spray action<\/li>\n\n\n\n<li>Defined rinsing and drying<\/li>\n\n\n\n<li>Lower variation between operators<\/li>\n\n\n\n<li>Integration with batch or continuous production<\/li>\n\n\n\n<li>Records for process validation<\/li>\n<\/ul>\n\n\n\n<h2 id=\"dez-pcb-and-pcba-cleaning-machine-comparison\" class=\"wp-block-heading\"><strong>DEZ PCB and PCBA Cleaning Machine Comparison<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>DEZ machine<\/th><th>Workpiece and production problem<\/th><th>Cleaning process<\/th><th>Key data<\/th><th>Choose this machine when<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/dez-smt.com\/product\/pcb-cleaning-machine-with-double-sided-cleaning\/\">DEZ-C753S Double-Sided PCB Cleaning Machine<\/a><\/td><td>Bare PCBs with dust, fibres and loose particles before solder paste printing<\/td><td>Three brushes, ionised air, dual vacuum extraction and front\/rear sticky rollers<\/td><td>PCB: 50 \u00d7 50\u2013350 \u00d7 350 mm; thickness: 0.4\u20133 mm; conveyor height: 900 \u00b125 mm; air: 0.4\u20130.5 MPa<\/td><td>Both sides of a bare PCB require dry cleaning before printing<\/td><\/tr><tr><td><a href=\"https:\/\/dez-smt.com\/product\/single-sided-pcba-cleaning-machine\/\">DEZ-C758 Single-Sided PCBA Cleaning Machine<\/a><\/td><td>Visible flux marks and loose solder balls on one accessible solder side<\/td><td>Cleaner application, wet brushing, dry brushing and fan drying<\/td><td>PCBA width: 50\u2013300 mm; component height: up to 135 mm; conveyor speed: 0.05\u20131.8 m\/min; brush speed: 0\u2013500 rpm<\/td><td>PCBAs after wave or selective soldering have an accessible contaminated surface<\/td><\/tr><tr><td><a href=\"https:\/\/dez-smt.com\/product\/automatic-pcba-brush-cleaning-machine-dez-c760\/\">DEZ-C760 Automatic PCBA Brush Cleaning Machine<\/a><\/td><td>Repeated solder-side cleaning using controlled gripping and multidirectional brushing<\/td><td>Cleaner application, 360 mm rotary brush, two roller brushes and waste collection<\/td><td>PCBA: up to L300 \u00d7 W300 mm; required board edge: at least 1.5 mm; conveyor speed: 0.05\u20131.8 m\/min; spindle speed: 0\u2013500 rpm<\/td><td>The board can be gripped safely and the solder side is compatible with direct brush cleaning<\/td><\/tr><tr><td><a href=\"https:\/\/dez-smt.com\/product\/offline-pcba-batch-cleaner-dez-c743\/\">DEZ-C743 Offline Batch PCBA Cleaner<\/a><\/td><td>High-mix PCBAs requiring complete washing, rinsing and drying<\/td><td>Spray wash, DI-water rinse, filtration and hot-air drying in one chamber<\/td><td>Double-layer basket: 610 \u00d7 560 \u00d7 100 mm; maximum load: 10 kg; wash: 25\u201375\u00b0C; drying: up to 99\u00b0C<\/td><td>Different PCBA models must be processed in batches without installing a large inline system<\/td><\/tr><tr><td><a href=\"https:\/\/dez-smt.com\/product\/inline-pcba-cleaning-machine\/\">DEZ-C1360 Inline PCBA Cleaning Machine<\/a><\/td><td>Continuous production requiring an aqueous cleaning process<\/td><td>Chemical spray washing, DI-water rinsing and two hot-air drying zones<\/td><td>Conveyor width: 500 mm; product width: 50\u2013500 mm, customisable; product weight: below 10 kg; speed: 0\u20131000 mm\/min; wash: 25\u201375\u00b0C<\/td><td>PCBAs must move continuously through washing, rinsing and drying<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"dez-c753s-for-bare-pcb-surface-cleaning\" class=\"wp-block-heading\"><strong>DEZ-C753S for Bare-PCB Surface Cleaning<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The DEZ-C753S is an automatic inline <strong>bare PCB cleaning machine<\/strong> for the stage before solder paste printing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Three brushes loosen particles from the upper and lower board surfaces. Ionised air reduces static attraction, dual vacuum sections remove released contamination, and front and rear sticky rollers collect remaining particles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is suitable when the problem is dry surface contamination. It does not remove post-solder flux residue or measure ionic cleanliness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use the DEZ-C753S when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The PCB is not yet populated<\/li>\n\n\n\n<li>Dust or fibres are reaching the printer<\/li>\n\n\n\n<li>Both board surfaces require cleaning<\/li>\n\n\n\n<li>Manual air blowing does not collect the released particles<\/li>\n\n\n\n<li>The cleaner must connect between the loader and printer<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-23c329a\" id=\"gspb_image-id-gsbp-23c329a\"><img decoding=\"async\" src=\"https:\/\/dez-smt.com\/wp-content\/uploads\/2025\/12\/PCB-Cleaning-Machine-with-Double-Sided-Cleaning-\u2013-DEZ-C753S-1.jpg\" data-src=\"\" alt=\"PCB Cleaning Machine with Double-Sided Cleaning \u2013 DEZ-C753S (1)\" loading=\"lazy\" width=\"1000\" height=\"1000\"\/><\/div>\n\n\n\n<h2 id=\"dez-c758-and-dez-c760-for-accessible-solder-side-residue\" class=\"wp-block-heading\"><strong>DEZ-C758 and DEZ-C760 for Accessible Solder-Side Residue<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The DEZ-C758 and DEZ-C760 are brush-based PCBA cleaning machines. Both target an accessible solder-side surface rather than immersing or rinsing the complete assembly.<\/p>\n\n\n\n<h3 id=\"choose-dez-c758-when\" class=\"wp-block-heading\">Choose DEZ-C758 when<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The PCBA travels continuously through cleaner application, wet brushing, dry brushing and fan drying. It supports boards from 50 to 300 mm wide and components up to 135 mm high.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The DEZ-C758 is suitable for visible residue and loose solder balls that the brushes can reach directly.<\/p>\n\n\n\n<h3 id=\"choose-dez-c760-when\" class=\"wp-block-heading\">Choose DEZ-C760 when<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The PCBA can be held by the available board edge and moved through a rotary brush and two roller-brush stages.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The C760 supports PCBAs up to L300 \u00d7 W300 mm and requires at least 1.5 mm of usable board edge. The main 360 mm rotary brush cleans the accessible solder side from multiple directions.<\/p>\n\n\n\n<h2 id=\"dez-c743-for-high-mix-batch-cleaning\" class=\"wp-block-heading\"><strong>DEZ-C743 for High-Mix Batch Cleaning<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The DEZ-C743 is an offline batch <strong>PCB board washer<\/strong> for assembled boards. Multiple PCBAs are loaded into a double-layer basket and processed inside a sealed SUS304 chamber.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The process is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Load \u2192 Spray Wash \u2192 DI-Water Rinse \u2192 Hot-Air Dry<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-mix production<\/li>\n\n\n\n<li>Samples and small batches<\/li>\n\n\n\n<li>Frequently changing PCBA models<\/li>\n\n\n\n<li>SMT, THT and mixed-technology assemblies<\/li>\n\n\n\n<li>Cleaning before compatible conformal-coating processes<\/li>\n\n\n\n<li>Factories that require complete aqueous cleaning without a continuous inline system<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cOffline\u201d means stand-alone equipment. It does not mean that the wash, rinse and drying cycle is manual.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-82f3e71\" id=\"gspb_image-id-gsbp-82f3e71\"><img decoding=\"async\" src=\"https:\/\/dez-smt.com\/wp-content\/uploads\/2026\/10\/DEZ-C743-for-High-Mix-Batch-Cleaning.jpg\" data-src=\"\" alt=\"\" loading=\"lazy\" width=\"1600\" height=\"1600\"><\/div>\n\n\n\n<h2 id=\"dez-c1360-for-continuous-inline-cleaning\" class=\"wp-block-heading\"><strong>DEZ-C1360 for Continuous Inline Cleaning<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The DEZ-C1360 is an inline <strong>aqueous PCB cleaning machine<\/strong> for assembled boards.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PCBAs travel on a 500 mm-wide SUS316 mesh conveyor through:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chemical Spray Wash \u2192 DI-Water Rinse \u2192 Two Hot-Air Drying Zones<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The machine supports compatible products from 50 to 500 mm wide, with customisation available. Conveyor speed is adjustable up to 1000 mm\/min.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choose an inline cleaning system when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaning is part of continuous production<\/li>\n\n\n\n<li>Basket loading would interrupt material flow<\/li>\n\n\n\n<li>Repeated recipes must be controlled through a PLC and touchscreen<\/li>\n\n\n\n<li>The site can provide the required electrical power, DI water, exhaust and drainage<\/li>\n\n\n\n<li>Washing, rinsing and drying must be completed in one conveyorised process<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Inline does not simply mean automatic. It means that assemblies move continuously through separate process sections.<\/p>\n\n\n\n<h2 id=\"why-ipa-sometimes-leaves-a-sticky-or-white-film\" class=\"wp-block-heading\"><strong>Why IPA Sometimes Leaves a Sticky or White Film<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A common production and forum question is why a board remains sticky or develops a white film after cleaning with isopropyl alcohol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPA can mobilise compatible flux residue, but the contaminated liquid must still be removed from the board. If it is brushed across the surface and then allowed to evaporate, dissolved or suspended material can be redistributed and deposited elsewhere.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The result can be:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A thin sticky film<\/li>\n\n\n\n<li>White residue after evaporation<\/li>\n\n\n\n<li>Flux transported beneath components<\/li>\n\n\n\n<li>Visible streaks<\/li>\n\n\n\n<li>Different results between operators<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The solution is not automatically to use more IPA. The process must consider flux compatibility, cleaning chemistry, mechanical action, removal of contaminated liquid, rinsing where required and complete drying.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For repeatable industrial production, this is one reason to replace uncontrolled wiping with a defined brush, batch or inline cleaning process.<\/p>\n\n\n\n<h2 id=\"how-to-choose-the-correct-pcb-cleaning-machine\" class=\"wp-block-heading\"><strong>How to Choose the Correct PCB Cleaning Machine<\/strong><\/h2>\n\n\n\n<h3 id=\"1-identify-the-workpiece\" class=\"wp-block-heading\">1. Identify the workpiece<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Confirm whether the machine will process a bare PCB or an assembled PCBA.<\/p>\n\n\n\n<h3 id=\"2-define-the-contamination\" class=\"wp-block-heading\">2. Define the contamination<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Specify dust, fibres, flux residue, ionic contamination, fingerprints, solder balls, solder paste or another known contaminant. \u201cDirty PCB\u201d is not enough for process selection.<\/p>\n\n\n\n<h3 id=\"3-locate-the-contamination\" class=\"wp-block-heading\">3. Locate the contamination<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Determine whether it is on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Both sides of a bare board<\/li>\n\n\n\n<li>One accessible solder-side surface<\/li>\n\n\n\n<li>The complete PCBA<\/li>\n\n\n\n<li>Areas beneath low-standoff components<\/li>\n\n\n\n<li>Connectors or shielded locations<\/li>\n<\/ul>\n\n\n\n<h3 id=\"4-confirm-whether-brush-contact-is-acceptable\" class=\"wp-block-heading\">4. Confirm whether brush contact is acceptable<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Brush cleaning requires physical access and compatible component, lead and board-edge geometry.<\/p>\n\n\n\n<h3 id=\"5-choose-batch-or-inline-production\" class=\"wp-block-heading\">5. Choose batch or inline production<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use batch cleaning for high-mix or changing production. Use inline cleaning when boards must pass continuously through separate wash, rinse and drying sections.<\/p>\n\n\n\n<h3 id=\"6-define-the-cleanliness-requirement\" class=\"wp-block-heading\">6. Define the cleanliness requirement<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Visual cleanliness does not prove an ionic-contamination level.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depending on the product requirement, evaluation may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Visual inspection<\/li>\n\n\n\n<li>ROSE testing<\/li>\n\n\n\n<li>Ion chromatography<\/li>\n\n\n\n<li>Surface Insulation Resistance testing<\/li>\n\n\n\n<li>Coating-adhesion testing<\/li>\n\n\n\n<li>Customer-specific acceptance criteria<\/li>\n<\/ul>\n\n\n\n<h3 id=\"7-check-chemistry-and-material-compatibility\" class=\"wp-block-heading\">7. Check chemistry and material compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Provide the manufacturer with the flux, solder paste, cleaning chemistry, component materials, coatings, labels and sensitive devices used on the assembly.<\/p>\n\n\n\n<h3 id=\"8-confirm-factory-utilities\" class=\"wp-block-heading\">8. Confirm factory utilities<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Global projects must confirm local:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Voltage and frequency<\/li>\n\n\n\n<li>Compressed-air pressure<\/li>\n\n\n\n<li>DI-water quality and flow<\/li>\n\n\n\n<li>Exhaust capacity<\/li>\n\n\n\n<li>Drainage and wastewater handling<\/li>\n\n\n\n<li>Conveyor direction<\/li>\n\n\n\n<li>Fixed rail edge<\/li>\n\n\n\n<li>Production-line height<\/li>\n\n\n\n<li>Available installation space<\/li>\n<\/ul>\n\n\n\n<h2 id=\"how-should-cleaning-results-be-verified\" class=\"wp-block-heading\"><strong>How Should Cleaning Results Be Verified?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A successful process must be verified against the reason for cleaning.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Requirement<\/th><th>Suitable verification<\/th><\/tr><\/thead><tbody><tr><td>Remove visible dust or fibres<\/td><td>Controlled visual inspection<\/td><\/tr><tr><td>Remove visible flux marks or solder balls<\/td><td>Magnified visual inspection<\/td><\/tr><tr><td>Control ionic contamination<\/td><td>Defined ionic-cleanliness test<\/td><\/tr><tr><td>Prepare a PCBA for coating<\/td><td>Cleanliness, dryness and coating-adhesion evaluation<\/td><\/tr><tr><td>Stabilise an automatic process<\/td><td>Recorded chemistry, time, temperature, pressure, speed and loading<\/td><\/tr><tr><td>Qualify a new machine<\/td><td>Sample testing using representative PCB or PCBA assemblies<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A before-and-after photograph can demonstrate visible change. It cannot establish an ionic-contamination value or guarantee long-term reliability.<\/p>\n\n\n\n<h2 id=\"frequently-asked-questions\" class=\"wp-block-heading\"><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<h3 id=\"does-no-clean-flux-ever-need-to-be-removed\" class=\"wp-block-heading\">Does no-clean flux ever need to be removed?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Cleaning may be required when residue affects coating, inspection, appearance, high-impedance circuits or customer cleanliness requirements. \u201cNo-clean\u201d does not mean that cleaning is prohibited or never necessary.<\/p>\n\n\n\n<h3 id=\"can-di-water-remove-flux-by-itself\" class=\"wp-block-heading\">Can DI water remove flux by itself?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DI water is primarily used to rinse dissolved contamination and remaining cleaning agent after washing. It does not replace suitable cleaning chemistry when the flux is not water-soluble.<\/p>\n\n\n\n<h3 id=\"should-i-choose-a-batch-or-inline-cleaning-machine\" class=\"wp-block-heading\">Should I choose a batch or inline cleaning machine?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose batch cleaning for high-mix, small- to medium-volume production or frequent model changes. Choose inline cleaning when PCBAs must move continuously through washing, rinsing and drying.<\/p>\n\n\n\n<h3 id=\"can-brush-cleaning-remove-residue-beneath-components\" class=\"wp-block-heading\">Can brush cleaning remove residue beneath components?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Not reliably. Brush systems target accessible surfaces. Residue beneath low-standoff components requires a process with suitable chemistry, liquid access, rinsing and drying.<\/p>\n\n\n\n<h3 id=\"what-information-does-dez-need-before-recommending-a-machine\" class=\"wp-block-heading\">What information does DEZ need before recommending a machine?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Send DEZ your board dimensions, contamination details, flux information, production volume and required cleaning result. Representative PCB and PCBA samples can be evaluated before the final machine configuration is selected.<\/p>\n\n\n<style id=\"wpforms-css-vars-95-block-c1a491d0-aa20-483a-9c68-ed0776153839\">\n\t\t\t\t#wpforms-95.wpforms-block-c1a491d0-aa20-483a-9c68-ed0776153839 {\n\t\t\t\t--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 14px;\n--wpforms-label-size-sublabel-line-height: 17px;\n--wpforms-button-size-font-size: 17px;\n--wpforms-button-size-height: 41px;\n--wpforms-button-size-padding-h: 15px;\n--wpforms-button-size-margin-top: 10px;\n--wpforms-container-shadow-size-box-shadow: 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