JEH-300C Offline PCB Aqueous Cleaning Machine

JEH-300C Offline PCB Aqueous Cleaning Machine

JEH-300C Offline PCB Aqueous Cleaning Machine

I.Machine Overview & Features

1. Product Features

The JEH-300C Offline PCBA Aqueous Cleaning Machine is a cost-effective batch cleaning system that removes various residues from electronics and stencil masks, including but not limited to: water-soluble residues, RMA (Rosin Mildly Activated), no-clean lead-free fluxes, plating salts, fingerprints, dust, and loose solder balls. Designed with U.S. TDC’s offline medium-pressure/high-flow cleaning concept, it features high efficiency, low cost, and user-friendly nozzle/piping maintenance.

Tailored for small-to-medium capacity PCBA flux cleaning, the JEH-300C completes washing, rinsing, and drying in a single chamber. It enhances cleaning quality for multi-variant PCBA cleaning. Chamber and tank capacities can be scaled per customer requirements, reducing chemical consumption. Advantages include competitive pricing, superior performance, excellent cleaning results, and high cost-performance ratio, making it a leading domestic offline cleaner contender. Constructed with corrosion-resistant stainless steel. PLC + touchscreen HMI ensures intuitive operation.

II.Product Highlights

• PLC + touchscreen user-friendly HMI platform
• Maintenance-optimized structure: Reserved access points for fans, filters, etc.
• Comprehensive cleaning system: Thoroughly removes organic/inorganic surface residues
• Fully automated process: Washing, rinsing, drying completed in one compact chamber
• Full-process visibility: Viewing window with LED lighting for real-time monitoring
• Large cleaning capacity: 1000mm(L)800mm(W)40mm(H) single-layer design accommodates larger products and higher throughput
• Optimized nozzle design: Gradually increasing left/right distribution enhances efficiency; Staggered upper/lower distribution eliminates blind spots
• Adjustable nozzle pressure: Prevents collision/splash risks for small products under high-pressure spray
• Standard dilution tank heating system: Boosts efficiency and reduces cycle time
• Large touchscreen interface: Reliable color touchscreen enables customized process parameters
• High cleanliness standards: Ionic contamination complies with IPC-610D Class III (<1.56μg/cm²) and MIL-28809 Class I
• Flexible chemical mixing: Manual addition or automatic DI water/chemical ratio blending (5%-25%)

III. Cleaning Process Flow

The JEH-300C integrated offline PCBA cleaner comprises three process stages: Chemical Cleaning Stage, Pure Water Rinsing Stage, and High-Velocity Hot Air Drying Stage.

Loading

• Single-layer material rack (supports layered loading)
• Push-pull feed rack
• Snap-buckle doors/windows (easy opening/closing)

Solvent Cleaning Process

• Chemical Replenishment: DI water pumped into tank + proportional chemical cleaning agent added
• Drainage: Post-cleaning solution discharged
• Operation: Mixed DI water/solvent pumped into cleaning tank at set temperature

Solvent Rinsing Process

• Replenishment: Water pumped from external tank to chamber
• Operation: Water pumped into cleaning pipes at set temperature
• Drainage: Solution discharged via auxiliary pump

Pure Water Rinsing Process

• Replenishment: Water pumped from external tank to chamber
• Operation: Water pumped into cleaning pipes at set temperature
• Drainage: Solution discharged via auxiliary pump

Drying Process

• Operation: Filtered dry air forcibly blown into chamber
• Air knife configuration: Ensures uniform drying
• Drying temperature: Ambient to 99°C

IV.Frequently Asked Questions (FAQ)

Q1: What types of PCBA is the JEH-300C suitable for cleaning?

A:
The JEH-300C is designed for small-to-medium batch, high-reliability PCBA cleaning, including:

• Removal of rosin/flux residues after SMT/DIP soldering

• Solder paste residues, dust, and oils from assembly processes

• High-reliability applications (automotive, medical, aerospace electronics)

• R&D prototyping, rework boards, and flexible small-batch production

Q2: What are the advantages of aqueous cleaning vs. traditional solvent cleaning?

A:
Aqueous cleaning offers superior environmental, safety, and sustainability benefits:

• ✅ Eco-friendly: Low-VOC aqueous agents comply with RoHS/REACH regulations

• ✅ Safety: Non-flammable, reduces workshop hazards

• ✅ Compatibility: Gentle on most components, ideal for complex assemblies

• ✅ Cost efficiency: Lower consumable costs and simpler wastewater treatment

Q3: Can the JEH-300C clean PCBAs with underfill or sensitive components?

A:
Yes, with optimized protocols:

• Adjustable spray pressure (0.5–2 bar) and temperature (RT–60°C) minimize stress

• Submit samples for compatibility validation prior to full-scale cleaning

• Avoid boards with unsealed electrolytic capacitors, mechanical connectors, or paper labels

Q4: How does the system ensure complete drying without water spots?

A:
Three-stage drying technology:

1. Powerful rinsing: Deionized water removes residual contaminants

2. Precision hot-air drying: Adjustable 40–80°C airflow penetrates component gaps

3. Uniform evaporation: Chamber airflow design eliminates moisture traps
   Post-drying surface resistance >10¹⁰ Ω meets IPC cleanliness standards.

Q5: How is process consistency guaranteed?

A:

• Full automation: PLC/touchscreen controls with preset cleaning/drying recipes

• One-touch operation: Minimizes human error

• Real-time monitoring: Temperature, pressure, and fluid parameters tracked; automatic fault alarms

Why Choose CNSMT For your SMT Needs?

• Quality is always our top priority – we make proper inspection prior to shipping.
• Quality of service – all of our machines and equipment comes with an English user manual. If needed, we also provide video tutorials to ensure the best user experience for all of our customers. Furthermore, our customers can also visit our showroom to see an actual demo of the machine or equipment, facilitated by our professional engineers.
• Excellent Aftersales Service – We always take good care of our customers even after sales. We provide a 24-hour technical support to our clients, where they can reach us through email, video chat or phone.
• Good Warranty – we provide good coverage for warranty to all of our products and equipment. This is to give our customers the peace of mind with every purchase that they make from us.
• Excellent Customer Service – when needed, we have a team of professional engineers ready to go to your factory. This means, you can request our engineers to go to your factory, even overseas, to help you with your technical needs.

These are the reasons why many SMT factories around the world trusts CNSMT. We are not just after sales; we are after a long-term business relationship.

Company Information

CNSMT is the leading manufacturer and supplieir for SMT machines and Solution with over 10 years' experience in China. And we can also do OEM&ODM for SMT traders, we have vast of sources in SMT field,even you need used or new SMT equipments or other parts, we can help you get the best quality and competitive cost machines.

What we can do for you:

※ We have our own factory make SMT equipments and devices
※ We have a professional technich engineer team for produce machines

※ We can customize variety of SMT machines for you according your requirements

※ We buy and sell used and new SMT equipments all over the world

※ We provide you SMT full line machines and export to worldwide
※ Becoming the most reliable Chinese partner for you.

Our Service

1,SMT full line solution

2,SMT Peripheral equipments manufacturer

3,SMT feeder, smt nozzle, smt feeder calibration, PCB trolley, feeder trolley, PCB strorage, SMT squeegee manufacturer

4,Buy and sell used and new YAMAHA JUKI FUJI PANASONIC SAMSUNG and reflow oven printers