Cleaning Processes & Automation

Our injection flood process is highly effective at removing contaminants from unapproachable, intricate cavities. In this process, the part is immersed in a liquid bath which is agitated by a liquid jet spray at 10-15 bar. Additionally, the part is rotated or oscillated for improved penetration and clean-out of intricate cavities. The bath is drained and refilled with filtered liquid after every cycle to maintain hygiene of the cleaning process.

Removal of chips, burr and contaminants accumulated in entwined passageways such as water jackets and oil galleries of engines is a critical cleanliness requirement. Our 'seal and flush' technique is fully up to this complex and challenging task. In this process, two or more selected openings of the passageways are sealed either simultaneously or sequentially with special butting nozzles. Contaminants are then flushed out by applying flow at 5 to 15 bar through the butting nozzles into the passageways.

Spray washing is the essence of aqueous cleaning. Although it seems like a straightforward process, its results depend significantly on design specifications. We maximize the efficacy of spray washing with the optimal selection of flow parameters and nozzles, positioning of nozzles, and design of relative motion between the part and nozzles. Pinpointed jets are used for tapped or blind-hole cleaning, whereas flat-fan jets are used for surface cleaning. Relative motion between the part and nozzles is achieved by part rotation / oscillation, or nozzle oscillation / rotation / swivelling. In addition to conventional spray washing, our cleaning systems can also be equipped with rinsing and passivation processes for achieving higher cleaning results and input conditions for downstream processes.

In this process, compressed air is utilized for blowing off liquid residue in blind holes using pin jet nozzles and surfaces using multichannel nozzles. Depending on the application, the discharge of compressed air may be continuous or pulsating with reduced air consumption.

This is a low-cost method for drying in which ambient air at high flow rates is circulated around the part for removal of liquid residue. For enhanced results, we offer high-pressure blow-off through air knives oscillating in close proximity to the part. In the applications where surface dryness is a critical requirement we provide hot airblow at 100-110C.

Here, drying is performed by evaporating the residual liquid through a vacuum pump. This is typically the final drying process as it ensures 100% dryness. We provide both internal and online external vacuum drying modules in our cleaning systems. We employ a robust sealing arrangement for forming the vacuum chamber, and a unique failsafe mechanism for the vacuum pump.