Technical Parameters

Model	PME-680FB
Dimension	5000*1950*2600mm
Basket	680*480*380mm
Throughput	12-15min/basket
Basket load	100-150KG

Cleaning Process

All solvents work by dissolving the soil; breaking it down into smaller particles and carrying it into the solution and away from the surface being cleaned. Many solvents offer an advantage of a quick cleaning, so the soils dissolve and flow off of the substrate without needing extended prep time, processing time or drying time.

As for customers‘ individual cleaning requests, the cleaning process can consist of several methods like spray, soaking, ultrasonic, rotation, swing, rinsing, steam washing and vacuum drying, etc., considering the 

shape and the characteristics of the workpiece to clean. Cleaning programm can be adjustable via PLC.

Product Features

■ Cleaning process with the third petroleum hydrocarbon solvent for clean and environmental protection, without waste water pollution

■ According to the principle of low-pressure distillation, the contaminated solvent is recycled by low-pressure distillation to ensure the cleaning effect of the solvent

■ Low consumption of solvent as 0.15L/H

■ By reducing the pressure to reach the saturated vapor pressure of solvent, the vacuum washing and drying can be carried out at low temperature in vacuum condition

■ The solvent can be recycled, practically no consumption, and the cleaning cost will be low

■ It can be used for low-pressure steam cleaning and immersion cleaning, even for small and narrow shape parts and deep-milled parts with blind holes

■ The whole cleaning process is carried out in a sealed container, safe and reliable, without the risk of fire and explosion

■ Additional ultrasonic soaking functions can be selected to further improve cleaning quality

■ Machines can be customized according to customer requirements

■ Optional equipment as automatic loading and unloading device, Demagnetizer, Rotating or throwing of the wash basket, Auxiliary distillation device, Rust-proof treatment, Explosion proof solvent drum.

■ Variable customized baskets available

Frequently Asked Questions

What are the differences between solvent-based cleaning machines and aqueous cleaning machines?

1. Evaporation Water-based cleaners function in a much narrow range of evaporation range when compared to solvent cleaners.  While solvent cleaners evaporation range can be from instantaneously to taking months, water based degreasers are typically in a much narrower range.  They typically are not left to evaporate on their own, and can normally be used in a cold or hot soak application.
   

2. Temperature profile  Cleaning temperatures for water-based chemistries can range from room temperature up to about 80C, depending on the cleaner and formulation.  Although this provides a great deal of process variability, this is much more limited when compared to solvent cleaners. Solvent temperature cleaning range can be much wider just based on the variety of solvents available, from below 0C to above 200C.
   
   

3. Higher surface tension In general, water based cleaners have higher surface tensions when compared to solvents.  Raising the temperature, using different surfactants and emulsifiers, and incorporating spray and drying systems can overcome much of this shortcoming, but for the tightest clearance areas, solvents with low surface tension have superior ability to wet into and evaporate out of tight spaces.
   
   

4. Reactive additives Some of the reactive additives incorporated into aqueous cleaners can be very aggressive to different metals, plastics, or inks.  Once the part is cleaned validation of material compatibility with the parts must be checked.  This includes making sure no reactive material is left behind from the rinse process and verifying the product will function in an expected manner in all expected environments.  Trace quantities of some of these materials
   may contribute to electrical leakage, coating dewetting, and a variety of other defects.
   
   

5. Rinse and Drying As noted above, rinsing and drying removes any cleaner components and solubilized contaminants.  While some solvent cleaning systems also require a rinse and dry process, water-based systems are usually more involved when compared to vapor degreasing applications.
   
   

6. Environmental Impact  Here again, environmental impact concerns apply to both solvent and aqueous cleaners. Global, national, state and municipal regulations continue to limit the cleaning choices available to manufacturers
   
   

• Montreal and Kyoto protocols limit categories of substances like CFC’s (chlorofluorocarbons), HCFC’s (hydrochlorofluorocarbons), and HFC’s (hydrofluorocarbons) due to ozone depletion, global warming, and other environmental concerns.
  
  

• EPA (Environmental Protection Agency) and state agencies like Cal-OSHA (California OSHA) limit personnel exposure to toxic chemicals.
  
  

• CARB (California Air Review Board) restricts smog-producing VOC’s (volatile organic compounds) in cleaners based on specific cleaning categories. 
  
  

• Hazardous Air Pollutants (HAP’s). Hazardous air pollutants (HAPs) are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects.  Some solvents are considered a HAP, and in general water based chemistries do not contain HAPs.
  
  

• Priority Pollutant List. These are a set of chemicals that the EPA regulates, and has analytical test methods for detecting under the Clean Water Act.  Here again, several solvents are on this list, while aqueous cleaning chemistries are not. 

Application Case

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