{"id":7599,"date":"2026-07-16T07:42:37","date_gmt":"2026-07-16T07:42:37","guid":{"rendered":"https:\/\/www.sancofd.com\/"},"modified":"2026-07-16T07:42:41","modified_gmt":"2026-07-16T07:42:41","slug":"sanco-four-axial-conformal-coating-machine-case-study-double-sided-pcba-coating-line-in-vietnam","status":"publish","type":"post","link":"https:\/\/www.sancofd.com\/fr\/sanco-four-axial-conformal-coating-machine-case-study-double-sided-pcba-coating-line-in-vietnam\/","title":{"rendered":"Sanco Four-Axial Conformal Coating Machine Case Study: Double-Sided PCBA Coating Line in Vietnam"},"content":{"rendered":"

Vietnam has become one of Southeast Asia’s fastest-growing hubs for electronics manufacturing, with a rapidly expanding base of PCBA assemblers serving automotive, industrial, and consumer electronics OEMs. As board complexity increases \u2014 with components populated on both the top and bottom sides \u2014 manufacturers need coating equipment that can reach every angle without manual rework. This case documents the installation of Sanco’s Four-Axial Conformal Coating Machine<\/a> at an electronics manufacturer in Vietnam, forming a complete inline coating and curing solution.<\/p>\n

\"Sanco<\/p>\n

Customer Background<\/h2>\n\n\n\n\n\n\n\n\n
Objet<\/th>\nD\u00e9tails<\/th>\n<\/tr>\n<\/thead>\n
Location<\/td>\nVietnam<\/td>\n<\/tr>\n
Industry<\/td>\nElectronics manufacturing \u2014 automotive control modules and consumer electronics PCB assembly<\/td>\n<\/tr>\n
Equipment Selected<\/td>\nFour-Axial Conformal Coating Machine + UV Curing Oven<\/td>\n<\/tr>\n
Goal<\/td>\nAutomate double-sided selective coating across mixed board types; eliminate manual flipping and rework, improve first-pass coverage quality<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Equipment Selected: Four-Axial Conformal Coating Machine<\/h2>\n

The customer’s boards carried components on both sides, and their existing single-pass equipment could not reach undercuts and angled edges without manual touch-up. After reviewing several options, they selected Sanco’s Four-Axial Conformal Coating Machine<\/a> for its added rotational axis, which lets the spray head tilt around tall components and connectors that a standard three-axis system would have to mask or bypass. The equipment was supplied as part of a complete line alongside a Four de s\u00e9chage UV<\/a> for inline curing.<\/p>\n

\"Sanco<\/p>\n

Key Features of the Four-Axial Coating Machine<\/h2>\n

Motion & Coating Control System<\/h3>\n\n\n\n\n\n\n\n\n
Feature<\/th>\nBenefit<\/th>\n<\/tr>\n<\/thead>\n
Four-Axial (X\/Y\/Z + rotational) servo-driven motion system<\/td>\nSpray head tilts to follow board contours and reach under tall components \u2014 consistent coverage without manual masking<\/td>\n<\/tr>\n
Programmable selective coating paths<\/td>\nDefine keep-out zones for connectors and sensitive components \u2014 eliminates masking tape labor entirely<\/td>\n<\/tr>\n
Multiple valve head options (spray, needle, film)<\/td>\nOne machine handles acrylic, silicone, polyurethane, and UV-cure coatings \u2014 flexible across product lines<\/td>\n<\/tr>\n
Adjustable flow rate and coating width<\/td>\nFine-tune coverage thickness per board specification \u2014 reduces material consumption vs. manual spray<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Software & Programming<\/h3>\n\n\n\n\n\n\n\n
Function<\/th>\nBenefit<\/th>\n<\/tr>\n<\/thead>\n
Offline programming via CAD\/Gerber import<\/td>\nNew board programs created without stopping the machine \u2014 zero production interruption during changeover setup<\/td>\n<\/tr>\n
Program storage and one-touch recall<\/td>\nSave programs for all board variants \u2014 operators switch products in seconds, no re-programming needed<\/td>\n<\/tr>\n
Real-time path simulation on screen<\/td>\nVerify coating route, including head tilt angles, before first board runs \u2014 prevents coating defects and material waste during setup<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mechanical & Maintenance Design<\/h3>\n\n\n\n\n\n\n\n
Module<\/th>\nFeature<\/th>\nBenefit<\/th>\n<\/tr>\n<\/thead>\n
Conveyor & Board Transport<\/td>\nAdjustable-width conveyor compatible with standard PCB carriers<\/td>\nHandles multiple board sizes without tooling changes \u2014 reduces changeover time between product runs<\/td>\n<\/tr>\n
Enclosed Coating Chamber<\/td>\nSealed working area with exhaust extraction port<\/td>\nSolvent vapor contained and vented \u2014 meets workshop safety requirements for coating operations<\/td>\n<\/tr>\n
Nozzle & Valve Access<\/td>\nTool-free nozzle removal for cleaning and replacement<\/td>\nRoutine maintenance completed quickly without extended downtime<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Curing Oven: Completing the Inline Coating Process<\/h2>\n

The customer integrated Sanco’s Four de s\u00e9chage UV<\/a> directly after the coating machine, enabling inline curing of their UV-formulated conformal coating. This replaced a separate batch oven step, reducing floor space usage and eliminating the work-in-progress queue between coating and curing. Sanco’s full curing oven range covers the complete spectrum of coating cure requirements:<\/p>\n\n\n\n\n\n\n\n\n
Curing Equipment<\/th>\nMain Application<\/th>\nCaract\u00e9ristiques<\/th>\n<\/tr>\n<\/thead>\n
Four de s\u00e9chage UV<\/a><\/td>\nUV conformal coating and UV adhesive curing<\/td>\nFast cure speed; inline conveyor integration; suitable for high-efficiency production<\/td>\n<\/tr>\n
Four de s\u00e9chage \u00e0 LED UV<\/a><\/td>\nEnergy-saving UV curing for heat-sensitive assemblies<\/td>\nLow energy consumption, minimal heat output, long LED service life<\/td>\n<\/tr>\n
Four de s\u00e9chage IR<\/a><\/td>\nHeating and drying of non-UV coating materials<\/td>\nUniform temperature distribution across board surface<\/td>\n<\/tr>\n
Four de s\u00e9chage \u00e0 vent chaud<\/a><\/td>\nDrying of acrylic and polyurethane conformal coatings<\/td>\nSuitable for continuous inline production with stable temperature control<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Line Layout: Handling Double-Sided Boards<\/h2>\n

Because the customer’s boards required coating on both sides, the four-axial machine was paired with a Retourneur de circuits imprim\u00e9s<\/a> and return-path conveyors<\/a> so boards could pass through the coating and curing stages twice without operator intervention. For manufacturers facing the same double-sided coating challenge, Sanco offers pre-configured line layouts such as the Double-Side Online PCBA Conformal Coating Line Solution<\/a>, the Double-Side Online PCBA Conformal Coating Line Solution (Alternate Configuration)<\/a>, and the Compact and Economic Double-Sides Coating Line<\/a> for customers with tighter floor space or budget constraints. Boards enter and exit the line via elevators<\/a> and loader<\/a>\/unloader<\/a> modules, keeping the process fully inline from first board to last.<\/p>\n

On-Site Installation & After-Sales Support<\/h2>\n

Sanco’s engineering team provided full remote commissioning support for this Vietnam installation, including machine configuration, valve calibration, four-axial coating path programming for the customer’s initial board range, and operator training conducted via video session. The handover included a full production trial run with double-sided coating coverage verification before sign-off.<\/p>\n

24\/7 Online Engineer Support:<\/strong> After every delivery, Sanco provides round-the-clock online engineering support. Our technical team is available 24 hours a day to assist with process questions, parameter adjustments, and troubleshooting \u2014 keeping your production line running with minimal downtime.<\/p>\n

For manufacturers looking to build or upgrade a complete conformal coating line, Sanco provides equipment across the full process \u2014 from conformal coating machines<\/a> and dispensing machines<\/a> to curing ovens<\/a> and peripheral automation. Contact our engineering team<\/a> to discuss your production requirements.<\/p>","protected":false},"excerpt":{"rendered":"

Vietnam has become one of Southeast Asia’s fastest-growing hubs for electronics manufacturing, with a rapidly expanding base of PCBA assemblers serving automotive, industrial, and consumer electronics OEMs. As board complexity increases \u2014 with components populated on both the top and bottom sides \u2014 manufacturers need coating equipment that can reach every angle without manual rework. […]<\/p>\n","protected":false},"author":1,"featured_media":7597,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[173,28,144,172,61,56,171],"class_list":["post-7599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-case-study","tag-conformal-coating","tag-double-sided-coating","tag-four-axial-coating-machine","tag-pcba","tag-uv-curing-oven","tag-vietnam"],"_links":{"self":[{"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/posts\/7599","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/comments?post=7599"}],"version-history":[{"count":1,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/posts\/7599\/revisions"}],"predecessor-version":[{"id":7600,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/posts\/7599\/revisions\/7600"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/media\/7597"}],"wp:attachment":[{"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/media?parent=7599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/categories?post=7599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sancofd.com\/fr\/wp-json\/wp\/v2\/tags?post=7599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}