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Air Pol lut ion Control Additional free information on any of these items can be obtained by circling the appropriate number on the reader service card.

P U S H - P U L L T R A N S D U C E R S Crest Ultrasonics, Trenton, N.J.

Crest Ultrasonic's Push-Pull Transducers are en- capsulated transducers mounted on each end of t i tanium bars. All of the sound gets t ransmit ted into the liquid, as the transducers are always placed in the bath. The Push Pulls can be easily removed and placed into another tank. If the liq- uid in the ultrasonic bath should accidentally drain out, the Push Pulls automatically stop. The cleaning performance is near perfect and the maintenance convenience is unmatched.

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Circle 150 on reader information card

U L T R A S O N I C C L E A N I N G S Y S T E M Telsonic Ultrasonics, Bridgeport, N.J.

The Tube Resonator is a unique ultrasonic clean- ing device tha t generates a multidirectional field of ultrasonic vibrations throughout the liquid in a cleaning tank. The Tube Resonator is available in lengths ranging from 9 to 70 in. and diameters as small as 3A in. The Tube Resonator is a portable and modular system and can easily be mounted in an existing tank, pipes, and gas cylinders to pro- vide the power of ultrasonics to an existing clean- ing process.

Circle 151 on reader information card

T A N K A N D G E N E R A T O R C L E A N I N G S Y S T E M Northeastern Sonics, Stamford, Conn.

Northeastern Sonics' Model NES 300 Ultrasonic Tank and Generator Cleaning System features a special 300-W power supply with pulse power and sweep frequency as standard. The UL-approved generator operates at 40 KHz. A variable power controller is available as an option. The 2-gal cleaning tank is fully constructed of heavy-duty 316L stainless steel with internal working dimen- sions of 6 x 12 x 8 in. The cleaning tank features 600 W of thermostatically controlled heat and V2-in. drain with ball valve. A complete line of accessories is available.

Circle 152 on reader information card

D E G R E A S I N G S Y S T E M S Thermal Equipment Corp., Torrance, Calif.

Thermal Equipment Corp. is the manufacturer of Baron-Blakeslee Vapor Degreasing Systems. All units are manufactured with solvent conservation in mind and to meet current EPA and NESHAP regulations. Many different sizes and configura- tions are offered to fit a variety of solvent-cleaning needs including vapor only, liquid immersion, su- per-heated vapor zones, ultrasonic, and convey- orized. Thermal Equipment Corp. also offers dis- tillation systems to further reduce waste solvents.

Circle 153 on reader information card

48 Metal Finishing