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New Equipment, Processes, and Materials

DRAG-FINISHING SYSTEM

USF Surface Preparation Group, Walther Trowal Div., Heber Springs, Ark. I

Drag fmishing was designed to re- place costly, large-scale manual op- erations. A standard Walther Trowal TMD Draw Finishing ma- chine consists of a stationary work bowl and a rotary turntable with one rotating satellite station for fixtured work pieces. Sophisticated, user- oriented features include infinite speed adjustment for the satellite station, separate drive of turntables and satellite station, and a program- mable control center. Options for multiple tooling positions and multi- stage processing add to performance flexibility. The systems can be adapted to work with custom-made modular systems. Circle 401 on the reader service card

HEAT EKCKANGERS

Chemineer Inc., North Andover, Mass.

Chemineer’s Kenics Heat Ex- changers are equipped with streamlined Kenics Static Mixer

elements. The high-performance thermal units offer maximum transfer rates even with highly viscous, difficult-to-process mate- rials. Used in a wide range of pro- cess applications, the heat ex- changers require less space, less energy, and less time process than other designs. Features in- clude design pressures to 10,000 psi; construction from all metals and alloys; special connections and fittings; X-ray, hydro, dye penetrant, and halogen testing; and ASME/TEMA compliance. Circle 402 on the reader service card

BLACK COATING

Birchwood Casey, Eden Prairie, Minn.

Net shape, high-strength powdered metal parts can be attractively blackened, quickly and economi- cally, with the safe, room-tempera- ture Presto Black System. The easy- to-use process, with a special zero discharge of heavy metals feature, coats porous, powdered metal parts with a uniform, nondimensional black finish that has high corrosion resistance (1,200~hr humidity test- ed). The process doesn’t streak or cause salt bloom on these types of parts as hot oxide processes often do. The finish process itself is per- formed quickly and easily in batches and large quantities using an existing tank line or one of Birchwood Casey’s space-saving, modular tank systems. Circle 403 on the reader service card

VERTICAL PUMPS

Sethco Div., Met-Pro Corp., Hauppauge, N.Y.

Sethco offers specially designed CPVC vertical pumps to meet the needs for OEM products. Rigid corrosion-resistant panels can be added to any of Sethco’s 14 mod- els to allow easy mounting on any OEM installation. The panel also stabilizes the discharge pipe elim- inating pipe stress. Sethco ZDX/ ZKX series vertical pumps are built for heavy-duty continuous pumping of acid and alkaline so- lutions (pH O-14) and other cor- rosive liquids at temperatures as high as 210°F. Models range from 1/20 hp for flows to 10 gpm to 7% hp for flows to 190 gpm. Features include a new high-strength rigid one-piece molded pump body to ensure extended pump life. Circle 404 on the reader service card

POWDER COATING

Walgren Co., Grand Rapids, Mich.

Walgren has established an im- portant alliance with Otefal Engi-

March 2001 73