SME5600 Inline PCBA Cleaning Machine for Flux and Residue Removal

Flux residue left after reflow or wave soldering can look clean to the eye and fail months later — electrochemical migration across a no-clean film shorts a power module in the field. Manual wiping can’t reach under connectors, can’t hold ionic cleanliness across a lot, and can’t keep pace with an SMT line. The SME5600 cleans PCBAs inline with water-based detergent, spray and ultrasonic, then DI-rinses and hot-air dries at up to 30 boards an hour.

The cost you haven't named

Field failures from residue. Rosin and no-clean films trap ions that migrate under bias; the short appears long after the board passes test, as a warranty return.
Inconsistent ionic cleanliness. Hand wiping varies by operator and misses tight pitches, so resistivity readings swing between boards and lots are not repeatable.
Throughput gap. Manual cleaning of a few boards an hour cannot follow a placement line running hundreds, so cleaning becomes the post-solder bottleneck.
Audit exposure. High-reliability automotive, power-module and LED lines need documented cleanliness; a non-repeatable process fails the audit and the customer.

The Four-Stage Inline Cleaning Audit

Frame the purchase as a cleaning audit so the machine fits your flux and line. Call it the Four-Stage Inline Cleaning Audit.

1. Classify the residues. List every flux type — rosin, water-soluble, no-clean — plus solder paste and contaminants per board family so the wash chemistry and stages match the actual soil.

2. Set the cleanliness target. Fix rinse resistivity at 0–18 MΩ real-time and spray pressure at 30–80 PSI, then confirm the wash holds that across a full lot, not just a sample board.

3. Score the throughput need. Tally boards per hour after reflow or wave; at 25–30 PCBAs/hour the inline pass keeps pace with the line instead of queuing behind it.

4. Confirm basket and fit. Verify the 2-layer basket (610×560×100 mm) and board range from 80×50 mm to 560×550×130 mm, plus inline placement after wave or reflow.

The vehicle: SME5600 Inline PCBA Cleaning Machine

The SME5600 is an inline PCBA cleaner for automotive, power-module, LED and high-reliability EMS lines, combining detergent wash, DI-water rinse and hot-air dry in one SUS304 stainless-steel pass.

Classify the residues → multi-stage wash. Detergent cleaning at 40–60°C removes rosin, water-soluble and no-clean flux, solder paste and contaminants in a 10–20 minute cycle.
Set the cleanliness target → DI rinse and spray. Adjustable 30–80 PSI spray and 70–75°C DI rinse (1–2 min × 3–5 passes) hold resistivity at 0–18 MΩ, read in real time.
Score the throughput need → inline pass. At up to 25–30 PCBAs/hour the machine runs inline after wave or reflow, so cleaning tracks the line instead of backing it up.
Confirm basket and fit → 2-layer basket. A 610×560×100 mm two-layer basket handles boards from 80×50 mm (200 pcs) to 560×550×130 mm in one load.

Specification note: throughput, tank volumes, rinse resistivity and board-size range should be confirmed at quotation, because they depend on your flux type, board dimensions and line speed.

Specifications

| Parameter | Value |

| --- | --- |

| Throughput | Up to 25–30 PCBAs/hour |

| Cleaning | 10–20 min, 40–60°C |

| Rinse | 1–2 min × 3–5, 70–75°C |

| Drying | 20–30 min, 70–95°C |

| Resistivity | 0–18 MΩ, real-time |

| Spray pressure | 30–80 PSI, adjustable |

| Tanks | 30 L liquid / 60 L dilution / 18 L spray |

| Power / air | AC380V 50Hz 65A / 0.45–0.7 MPa |

| Build | SUS304 stainless steel |

| Weight / size | 600 kg / 1300 × 1200 × 1850 mm |

The loop: re-audit cleaning every quarter

Flux chemistry and volumes change as products ramp. Build a loop: every quarter, repeat the Four-Stage Inline Cleaning Audit, compare resistivity and throughput against the baseline, and review tank condition, spray pressure and wash-liquid consumption with your process lead. If a new flux or board family appears, reconfirm the wash profile before volume builds rather than after. The SME5600's stainless-steel tanks and adjustable spray give you margin to absorb that change — the loop is what keeps cleanliness at spec instead of drifting as residues change.

Your next step

Send us your flux types, board sizes and target line speed. We will return a cleaning review showing where the SME5600 fits, which wash and rinse settings to specify, and what to confirm at quotation for your line. Reach Jason at jasonwu@smthelp.com or on WhatsApp +86 13602562576.

FAQ

What residues does the SME5600 remove?

Rosin, water-soluble and no-clean flux, solder paste and general contaminants from PCBAs after wave or reflow.

How clean is the rinse?

DI-water rinse holds resistivity at 0–18 MΩ, measured in real time, with 30–80 PSI adjustable spray.

What throughput does it deliver?

Up to 25–30 PCBAs per hour, running inline after wave or reflow soldering.

What board sizes fit?

A 2-layer basket (610×560×100 mm) handles boards from 80×50 mm up to 560×550×130 mm.

What is the machine built from?

SUS304 stainless steel, with 30 L liquid, 60 L dilution and 18 L spray tanks on AC380V 50Hz.

Jason Wu

Founder & CEO, Southern Machinery (Shenzhen Southern Machinery Sales and Service Co., Ltd.)

Email: jasonwu@smthelp.com / info@smthelp.com

WhatsApp: +86 13602562576

Catalog & manuals: file.autoinsertion.com | Machine photos: ph.smthelp.com

LinkedIn: linkedin.com/in/smtsupplier | YouTube: youtube.com/c/Smthelping