SME-5200 Aqueous Pallet Cleaning System: SMT Fixture & Wave Solder Pallet Cleaner

Solder pallets, reflow fixtures and carriers pick up flux residue, grease and dust with every pass through a wave soldering or reflow line. If that buildup is not removed, it transfers onto boards, causes soldering defects, and shortens tooling life. The SME-5200 Aqueous Pallet Cleaning System from Southern Machinery automates the wash, rinse and dry cycle so fixtures come back clean, dry and ready to run — without hazardous solvents or manual scrubbing.

What is this machine used for?

The SME-5200 is an automated, aqueous-based cleaning machine designed for SMT and THT tooling: wave solder pallets, reflow oven coolers and filters, trays, carriers and other fixtures used in PCB assembly. It cleans grease, flux and dust from fixture surfaces using a wash unit, rinse unit, dry unit, rotation cleaning basket and a control unit.

Operation is simple: load dirty fixtures into the rotating cleaning basket, set the cleaning parameters, press start, and the machine automatically completes the wash, rinse and dry process. Fixtures come out clean and dry, ready for the next production run.

Key verified specifications:

• Cleaning basket: Ø1000 mm x H200 mm round rotating basket for batch cleaning
• Cleaning fluid tank: 80 L | Rinse tank: 80 L
• Cleaning method: top, bottom and front spray (720° coverage)
• Drying: compressed air cut + hot air dry
• Cleaning filters: 3-stage (2 mm pump protection screen, 100 µm solid particle screen, 20 µm flux filter core)
• Rinse filters: 2-stage (2 mm + 100 µm)
• Cycle time: clean 3–20 min, rinse 1–2 min, dry 10–20 min (full cycle approx. 30–40 min)
• Cleaning/rinsing pump: 2.2 / 1.1 kW | Blower: 3.7 kW | Rotary motor: 400 W
• Liquid heating: 9 kW (room temp to ~90 °C) | Hot air heating: 9 kW
• Air supply: 0.5–0.7 MPa, 800–1000 L/min
• Power: 380 VAC, 3-phase, 50/60 Hz, 34 kW rated (approx. 13 kW normal operation)
• Machine size: 1380 (L) x 2000 (W) x 1400 (H) mm | Net weight: 600 kg
• Key components: Schneider contactors/relays, CKD solenoid valves, OMRON power units, SUS304 piping
• Automated liquid fill/drain via pneumatic diaphragm pump; pressure sensors on cleaning/rinsing pipes with alarm protection

Typical Application Scenarios

• EMS / contract manufacturers running mixed SMT+THT lines with high fixture utilization
• Wave soldering operations where pallets accumulate flux residue after every board pass
• Reflow and selective soldering lines using carriers, coolers and filters that need periodic cleaning
• Automotive electronics with palletized THT assemblies and strict cleanliness requirements
• Industrial control and power supply plants with high-mix tooling sets
• LED lighting and appliance manufacturing running long series on dedicated fixtures

For these environments, an aqueous pallet cleaner is the difference between tooling that rotates reliably through the line and tooling that drags defects into the solder process.

How It Integrates into a Complete PCB Assembly Line

The SME-5200 sits at the support periphery of a full SMT/THT line — after stencil printing, pick-and-place, reflow and wave soldering — where fixtures circulate between the soldering stations and the assembly stations. Instead of pulling operators off the line to scrub pallets by hand, a dedicated cleaning station keeps tooling in rotation:

1. Wave solder pallets exit the solder process carrying flux residue.
2. Pallets are loaded into the SME-5200 rotating basket in batches.
3. The machine completes wash → rinse → dry automatically.
4. Clean, dry fixtures return to the line, ready for the next board set.

This makes the pallet cleaning step a scheduled, repeatable process rather than a bottleneck — and it fits naturally into lean 5S and smart-factory material flow programs.

Key Selection Parameters for an Aqueous Pallet Cleaner

When evaluating a fixture/pallet cleaning machine, buyers should confirm:

• Basket / chamber size — must fit your largest pallet, carrier or tray (verify against your tooling dimensions)
• Cleaning chemistry — aqueous (water-based) vs solvent; check compatibility with your flux residues
• Filtration stages — finer filter cores extend fluid life and reduce operating cost
• Drying method — compressed air cut + hot air reduces time-to-dry and prevents corrosion
• Cycle time — total wash-rinse-dry time drives how many pallets you can rotate per shift
• Utility requirements — power supply, compressed air volume/pressure, floor space, ventilation
• Automation level — auto fill/drain, pressure alarms, and programmable parameters reduce operator involvement

Southern Machinery can advise on matching the SME-5200 to your specific fixture sizes and flux types.

ROI, Quality & Throughput Perspective

• Defect reduction: clean fixtures prevent flux transfer onto boards, cutting soldering defects and rework.
• Labor savings: one automated cycle replaces hours of manual scrubbing, freeing operators for value-added work.
• Tooling longevity: removing corrosive flux and grease extends the life of pallets, carriers and oven filters.
• Line consistency: repeatable cleaning parameters keep process conditions stable shift after shift.
• Safety & compliance: aqueous cleaning eliminates hazardous solvent handling and disposal in the factory.
• Throughput: a dedicated cleaning station removes the fixture-cleaning bottleneck from the solder line.

FAQ

Q: What types of fixtures can the SME-5200 clean?

A: Wave solder pallets, reflow oven coolers and filters, trays, carriers and general SMT fixtures — anything with grease, flux or dust on the surface that fits the Ø1000 mm x H200 mm cleaning basket.

Q: Does it use solvents?

A: No. The SME-5200 is an aqueous cleaning system using cleaning fluid and clear water rinse, eliminating hazardous solvent handling.

Q: How long does one cleaning cycle take?

A: Clean time is 3–20 min, rinse 1–2 min, and dry 10–20 min — roughly 30–40 minutes for the full wash-rinse-dry cycle, depending on the contamination level.

Q: Can it integrate with an existing SMT/THT line?

A: Yes. It is a standalone support station that slots into the tooling/fixture workflow of any line — SMT, THT, wave soldering or selective soldering.

Q: How often do filters need replacing?

A: The machine uses 5 filters in total; typical replacement is every 15–30 days depending on cleaning load and contamination level.

Q: What industries use this type of machine?

A: EMS manufacturers, automotive electronics, industrial control, power supply, LED lighting and appliance plants that run palletized THT or selective soldering processes.

Q: Where can I see the SME-5200 in operation?

A: Southern Machinery publishes a cleaning demo video on its YouTube channel showing the wash, rinse and dry process with real pallets.

Contact Southern Machinery for Configuration Advice

The SME-5200 Aqueous Pallet Cleaning System is part of Southern Machinery's complete SMT/THT PCB assembly automation range. Based in Shenzhen, China since 2011, Southern Machinery has served 237+ customers worldwide with high-efficiency, cost-effective equipment and full-line solutions — insertion, wave soldering, board handling, cleaning and inspection — backed by global support, spare parts and training.

Contact Jason Wu at jasonwu@smthelp.com for configuration advice. Download product catalogs at file.autoinsertion.com, view machine photos at ph.smthelp.com, and explore the full product range at www.smthelp.com.

Watch the SME-5200 pallet cleaning demo on YouTube: https://www.youtube.com/watch?v=gaBQ5wjoJz0