JST manufacturing

Stainless Steel Heated Downflow Bath

Utilized for metal lift off and removal of heavy particles that have a tendency to fall to the bottom of the tank.

wafers in tanksm2JST’s heated downflow baths are designed for metal lift off and removal of heavy particles that have a tendency to fall to the bottom of the tank. Filtered and heated solvent chemistry flows directly onto the submersed parts lifting the containminants and flowing them down the bottom of the tank and out the bath drain. This downflow action eliminates the possiblity of sheeting films redepositing back onto the product. In a typical overflow bath, chemistry is introduced into the tank via the bottom and flows over the product and out the top into the overflow weir leaving heavier films to circulate within the body of the bath. With JST’s downflow design the particles are pulled out of the tank and captured in a filter trap.

downflow diagramA 10 inch inline filter housing accepts a standard 10 inch dual o-ring filter cartridge allowing users to install the type of filter cartridge they need depending on chemistry pH and particle removal size required. For applications that require reclaim, a removable filter trap is available.

The heating elements are bonded to the outer walls, insulated and contained with an outer shroud. The heating element in the double wall housing is N2 purged. Inline heaters are recommended for large, high temperature baths that require a fast heat up time or higher processing temperatures.

Static heated bath controller (1)

A PID controller using a Type J RTD temperature probe controls the bath temperature. The controller has a programmable temperature and timer. An audio alarm sounds if the bath goes out of the specified operating temperature. In an over temperature condition the controller will turn off the heaters. A heating element snap switch protects an over temperature condition in case the controller or probe fail. A liquid level detection monitors the chemistry level in the bath to keep a safe operating level.

Basic Features 

• Temperature Range 40º C- 120º C /- .5º. Sidewall heaters
• Thermocouple, type J Teflon coated Temperature probe
• Programmable Temperature Controller with Timer
• Liquid Level detection interlocked to pump
• Dual diaphragm pneumatic pump
• Air Operated Drain Valve
• Dispersion cassette platform

Optional Features 

• Hinged or Auto lid
• Dedicated Drain to carboy
• Flow sensor
• Electrical Centrifugal pump
• Auto Chemical fill
• Pump Stroke monitoring
• Temperature Range 40º C- 180º C /- .5º with Inline Heater


JST Manufacturing Inc.
219 E. 50th S.
Boise, ID  83714  USA

Toll Free: 800-872-0391
Phone: 208-377-1120
Fax: 208-377-3645
e-mail: info@jstmfg.com

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