Your Professional Automation Equipment Supplier
Founded in 2019, Shenzhen Reaching Electronic Assembly Co., Ltd. specializes in SMT production lines and industrial automation solutions for the global electronics industry. Our management and engineering team brings over 20 years of industry experience. We operate a modern factory with professional assembly and testing production lines. Core products include full SMT lines, robotic loading systems, AOI visual inspection equipment, and online ICT/FCT/ATE testing systems, supporting customers with reliable equipment and responsive technical service worldwide.
Why choose us
Sales Market
Our machines have been exported to more than 100 countries globally, including Europe, America, Brazil, Chile, Argentina, Spain, Russia, UAE, South Africa, India, Thailand, and Middle Eastern countries, etc.
Advanced SMT Production Lines
We provide complete SMT production line solutions designed to improve manufacturing efficiency, production stability, and smart factory automation for global electronics manufacturers.
Customized
Our provides flexible SMT and automation solutions tailored to different production needs, helping customers improve efficiency, yield, and smart factory performance.
Our Certificate
Our follows ISO 9001:2015 quality management and ISO 14001:2015 environmental standards to ensure stable product quality and responsible manufacturing practices.
Inline PCB Cleaning Machine with AOI
The Automatic PCB Cleaning Machine is designed to remove dust, particles, and static charges from circuit boards before solder printing and assembly. By integrating dust removal, anti-static control, and precision transport, it ensures every PCB enters the SMT process in the best possible condition. The system uses brush rollers, vacuum suction, and ionized air to clean even the finest particles down to 0.001 mm. A dual ionizing air gun setup at both entry and exit points eliminates static, preventing re-contamination.
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SPECIFICATION |
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Category |
Item |
Main Specification |
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PCBA Size Range |
Maximum PCBA Length × Width |
Length × Width (panelized, excluding tooling) Maximum PCBA Size: 350 × 250 mm |
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PCBA Thickness |
1.6-3mm |
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Process Flow |
Equipment Operation Flow |
Product enters the machine → Product clamping → Automatic cleaning → AOI automatic visual inspection for solder defects |
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Automatic Cleaning |
Cleaning Side |
1 side |
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Cleaning Criteria |
1,Remove residual flux |
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Cleaning Locations |
1,Through-hole component pins;2,Screws |
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Liquid Replenishment |
Automatic replenishment |
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Brush Cleaning |
Automatic cleaning |
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AOI Visual Inspection |
Inspection Items |
1,Component pins;2,Screws |
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Pin Bridging |
Any two pins connected at any point is considered solder bridging |
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Solder Balls |
Diameter/length > 0.13 mm |
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Insufficient Solder on Pins (PIN) |
The starting side of the solder joint must have at least 75% wetting coverage |
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The solder joint starting pad area should be fully covered. Clear PIN contour must be visible. |
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Insufficient Solder on Screws |
Coverage < 75% (saturation); the cross-slot must show clear fill |
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Foreign Objects |
Foreign material must meet all of the following: |
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Blowholes / Pinholes |
Allowed as process warnings when soldering standards are satisfied, |
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Solder Joint Cracking |
Not allowed |
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Barcode Scanning |
All product barcodes must be scanned |
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OK/NG Images |
OK/NG images can be saved; retention time is configurable |
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Inner-side Pin Through-hole Tinning |
Present/Not present |
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Top-Side Inspection |
Through-hole Tinning Detection |
Tinning area > 75% (configurable) |
Advanced Dust Removal: The cleaning module uses brushes, vacuum suction, and electrostatic rollers to remove even micro-particles. With cleaning precision of 0.001 mm, it prepares PCB boards for high-quality soldering and assembly.
Reliable Static Control: Static charges are neutralized at the entrance and exit using dual ionizing air systems. This prevents dust re-attachment and lowers the risk of ESD damage to sensitive components.
Stable Conveyor Design: The conveyor uses a unique bottom support to keep large boards flat during transport. Combined with anti-static belts, it ensures safe handling without deformation.
Intelligent Control System: Powered by a Panasonic PLC and touch panel, the system allows precise operation and quick parameter adjustments. Safety i
Applications of Inline PCB Cleaning Machine with AOI
SMT Assembly Lines
Removes flux residues after reflow soldering.
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Aerospace Electronics
Ensures high reliability when exposed to extreme environments.
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Medical Electronics
Contaminant-free circuits reduce failure risks in life-critical devices.
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Automotive Control Units
Guarantees long-term durability under temperature cycling.
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Prototype and Laboratory Use
Allows engineers to validate circuit performance.
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Ultrasonic PCB Cleaner
Utilizes high-frequency sound waves (20–40 kHz) in a liquid cleaning solution to generate microscopic cavitation bubbles that implode with precision, removing contaminants from even the tightest spaces.
Automatic Inline Washer
Fully automated conveyor-based system integrated into production lines, using spray, chemical, or thermal methods to clean PCBs continuously.
Manual PCB Cleaning Station
Standalone workstations where operators use brushes, solvents, and compressed air to clean PCBs by hand, offering maximum flexibility for small-scale operations.
Vapor Degreaser
Uses heated solvents (e.g., isopropyl alcohol, n-propyl bromide) to create vapor that condenses on cooler PCB surfaces, dissolving oils, greases, and flux residues without wetting the board.
Pressurized Spray Cleaner (Automated)
Employs high-pressure nozzles to deliver targeted streams of cleaning solution across the PCB surface, often combined with rotating brushes and drying zones in an automated system.
Location Planning: Install the washer in a well-ventilated area with access to exhaust or fume extraction systems, especially when using solvent-based cleaners. Avoid damp or corrosive environments.
Power & Utilities: Ensure a stable electrical supply (typically 110V or 220V, single or three-phase) and, if needed, connections for water inlet, drain, and compressed air (for spray rinse stages).
Leveling: Use an adjustable leveling foot and spirit level to ensure the machine sits perfectly flat. This prevents uneven solution distribution and protects internal components like pumps and transducers.
Clearance: Allow at least 12 inches of clearance around the unit for airflow, maintenance access, and safe operation of doors or baskets.
Pre-Operation Check: Run a test cycle without PCBs to verify heating, ultrasonic function, filtration, and drainage. This ensures all systems are operational before processing sensitive electronics.
Operating Procedures of Inline PCB Cleaning Machine with AOI
Preparation
Sort PCBs by contamination level (light flux, heavy grease, etc.) and select the appropriate cleaning solution—water-based, alcohol-based, or specialized solvents. Always follow chemical compatibility guidelines.
Loading
Place PCBs in the basket with adequate spacing to allow solution circulation. Avoid stacking or overcrowding, which can shield areas from ultrasonic energy.
Setting Parameters
Program cleaning time (typically 3–10 minutes), temperature, and ultrasonic intensity based on manufacturer recommendations and PCB sensitivity. Use lower power for fragile components.
Post-Cleaning
After the cycle, rinse with deionized water if required, then dry using a hot air dryer or vacuum system to prevent water spots and corrosion.
Maintenance & Troubleshooting
Tank Cleaning
Drain and clean the tank after each use or at least weekly to prevent sludge buildup. Use a mild detergent and soft brush; avoid abrasive tools that can damage the surface.
Ultrasonic Transducers
Inspect regularly for delamination or mineral deposits. Clean with a dedicated transducer cleaner or diluted vinegar solution. Replace if output power drops significantly (typically after 5,000–8,000 hours).
Filtration Maintenance
Clean or replace filters according to usage—weekly for heavy use, monthly for light duty. Clogged filters reduce flow and cleaning efficiency.
Heating Element Care
In hard water areas, descale elements every 1–3 months using citric acid or commercial descalers. Check for continuity and insulation resistance periodically.
Lubrication
Apply food-grade or machine-specific lubricant to hinges, rails, and moving parts every 3–6 months to prevent seizing and wear.
Professional Servicing
Schedule annual inspections by qualified technicians to check electrical systems, pump performance, and structural integrity. Keep a service log for warranty and compliance purposes.
Certificates
FAQ
We're well-known as one of the leading automation equipment manufacturers and suppliers in China. Please feel free to buy high quality automation equipment made in China here from our factory. For price consultation, contact us.
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