Thermal Product Solutions Ships Four Gruenberg Explosion Resistant Class “A” Truck-in-Ovens to the Pharmaceutical Industry

Thermal Product Solutions, a global manufacturer of thermal-processing equipment, announced the shipment of four (4) Gruenberg Explosion Resistant Class “A” truck-in-ovens to the pharmaceutical industry. The pharmaceutical ovens are rated for Class A operation to handle processing solvents per the NFPA 86 specifications.

These Gruenberg unitized ovens have a maximum temperature rating of 60° C and work chamber dimensions of 38” W x 38” D x 68” H. The explosion resistant ovens were constructed from a structural steel frame that supports the 304-stainless steel chamber liner and the exterior stainless steel sheet metal. All interconnecting struts are non-continuous which keeps the exteriors cool.

These granulation dryers utilize horizontal airflow, which maximize heating rates and temperature uniformity of the product load. A circulation blower with variable frequency drives are in a conditioning plenum chamber on the top of the oven. The blower directs air through a diffuser panel to flow horizontally across the product. The air exits the work chamber on the opposite side duct wall back to the steam coil for reheating and recirculation.

“Gruenberg products are designed to meet the highest standards of safety specifications. These truck-in ovens required a Class A rating to safely remove solvents released during the heating process and were rated for Class I, Division I, and Groups D&E room.”

- Denny Mendler, Gruenberg Product Manager

Unique features of these Gruenberg truck-in ovens include:

• Allen Bradley PLC and HMI

• High limit controller to prevent over heating

• Steam Heat

• Chilled water cooling coil

• Inside safety door release

• ¾” inside radius coved corners

• Deflagration safety vent

• UL508A Control Panels

• Honeywell chart recorder

• Main Power disconnect switch

• Class “A” with non-sparking air movers

• Class I, Division I, and Groups D&E

• HEPA filtration of incoming and exhaust air

• Horizontal airflow to maximize heating rates

• Temperature uniformity of +/- 2°C at an operating temperature of 48°C

• Full validation package; FAT/IQ/OQ/PQ/SAT

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