Profile: Trident Engineering is a manufacturer and supplier of cleaning & engineering machines. Our products include oil cleaning machine, contamination checking kits, electrostatic liquid cleaning machines, dust collector papers, and plate heat exchangers. Electrostatic liquid cleaning machine is an electrostatic super cleaning equipment involving static charging of ionized suspended solid contaminants in fluids and oils, and collecting them on enormously spread surface of di-electric media. It is intended for carrying out cleaning process as per off line cleaning principle. This system uses the principles of electrostatics to collect fluid contaminants. Contamination checking kit enables the determination of the oil cleanliness level before and after its filtration. The contamination level can be clearly seen from the color of the oil patch created on the submicronic membrane produced by passing the oil through the membrane.