InJet® Spray-in-Air Cleaning Systems

Providing reliable electronic components begins with absolute and verifiable cleanliness. DCT has been operating on the market for over 25 years, building a globally available network of local distributors and technical support. We offer a unique commitment to our clients: when you use a DCT cleaning system combined with our recommended cleaning fluid, we take 100% responsibility for your entire cleaning process.

Why Choose InJet®: Spray-in-Air & Eliminating Shadowing

The space underneath low-profile components, such as QFN or BGA packages, presents a significant defluxing challenge. Traditional horizontal systems often fail here due to the shadowing effect, where component bodies block the cleaning fluid from reaching adjacent areas. The InJet® series eliminates this issue through vertical Spray-in-Air technology. By holding the boards vertically and applying perpendicular high-pressure spray through rotating arms, InJet® machines break through shadow barriers, ensuring complete penetration under components with minimal stand-off heights.

Process Configurations Explained: CD, CRD, and CRRD

Our fully automated, closed-loop systems operate in distinct configurations tailored for specific SMT applications:

• CD (Cleaning & Drying): The foundational solution for removing solder pastes from stencils, squeegees, and one-sided misprints where rinsing is not required.
• CRD (Cleaning, Rinsing, Drying): The industrial standard configuration ensuring thorough rinsing of detergents utilizing DI water.
• CRRD (Cleaning, Rinsing, Rinsing, Drying): Our advanced barrier rinsing standard. It utilizes an isolated pre-rinse stage to prevent cross-contamination of the final DI water bath, extending the life of your ion-exchange filters by up to 300% and continuously maintaining final rinse conductivity below 5 µS.

Compact & Versatile Systems (InJet® 388 Series)

• InJet® 388 CRRD: The most versatile vertical high-pressure system, developed primarily for precision PCBA cleaning after soldering or removing solder pastes from stencils. It is capable of processing up to 52 PCBA boards in a single cycle.
• InJet® 388 TWIN CRRD: Features dual chambers to eliminate cross-contamination between different chemistry types, making it ideal for facilities that clean both PCBAs and stencils simultaneously.

High-Capacity Industrial Systems (InJet® 888 Series)

• InJet® 888 CRD: Developed primarily for the rigorous removal of baked flux residues from solder frames, reflow oven parts, and heavy maintenance cleaning. Advanced 2PR filtration ensures efficient phase separation. Using specialized holders, it can clean up to 27 disassembled coating frames in a single cycle.
• InJet® 888 CRRD: The workhorse of high-volume SMT lines, providing dual rinsing tanks for absolute ionic cleanliness in Tier-1 automotive and medical manufacturing.

Frequently Asked Questions (FAQ) about InJet® Systems

What is the main advantage of a vertical Spray-in-Air system over a horizontal one?

The primary advantage is the total elimination of the shadowing effect. In vertical Spray-in-Air machines like the InJet® 388 series, rotating arms spray the fluid perpendicularly onto upright boards, preventing component bodies from blocking the wash cycle. This ensures that chemistry reaches underneath complex, low-standoff components like BGAs.

How does the CRRD technology lower running costs?

CRRD (Cleaning, Rinsing, Rinsing, Drying) adds a physically separated pre-rinse chamber. This acts as a barrier that prevents the alkaline or solvent-based cleaning agent from dragging into the final DI water rinse. By keeping the final rinse free of chemistry, you extend the life of your expensive ion-exchange filters by up to 300%.

Can I dry components faster in an InJet® machine?

Yes, our specialized systems incorporate Focused Drying technology utilizing high-velocity air-knives. This innovation blows compressed air directly onto the board structure, shortening the total drying time by up to 60% compared to standard hot air convection methods.