PPI Helps Auto Parts Manufacturer Make Large DCPD Truck Hoods

GREENSBURG, PA – An automotive parts manufacturer in Mexico wanted to make 50-pound hoods for large over-the-road trucks using Metton® liquid molding resin, which is composed of two, low-viscosity DCPD streams injected into a closed mold.

The challenge: How to deliver shot sizes up to 5,000 grams/second, while insuring that no air entered the system and all key processing parameters of ratio control, temperature, pressure and flow rates were maintained.

Polyurethane Process Industries (PPI) supplied an Impianti OMS EcoMaster 400/200 reaction injection molding (RIM) machine, specially equipped to deliver the Metton to two high-pressure mix heads without nucleation or bubbles in the materials. Maintaining low pad pressure and slow agitator speeds were critical. Low-pressure feed pumps were used to maintain head pressure on the metering pumps.

The two mix heads combined the activator and catalyst at a 1:1 ratio by impingement mixing and injected the mixture into a closed mold mounted to a 120-ton, vertical hydraulic press. PPI also supplied the press, which was designed with 10- by 12-foot platens that open like a book for easier mold preparation and unloading of the finished truck hoods.

A closed-loop control system, which self corrects all key processing parameters and allows remote access troubleshooting, maintains full process control.

About Polyurethane Process Industries, LLC

PPI is the exclusive U.S. distributor of polyurethane foam equipment manufactured by Impianti OMS S.p.A. The southwestern Pennsylvania sales and service company has provided high-quality, low-cost equipment, parts, repairs, service and engineering assistance to North American polyurethane manufacturers since 2004. PPI supplies new bulk chemical storage and polyurethane manufacturing systems, as well as rebuilt and modified equipment, to the automotive, refrigeration, heating and ventilation, transportation, construction, recreation, furniture and healthcare industries.

For more information contact:

Mark Clark,

General Manager,

Polyurethane Process Industries, LLC

1628 Roseytown Road, Suite 7, Greensburg, PA 15601-7584

Phone: (724) 691-0551

Cell: (724) 244-6698

Fax: (724) 691-0696

Email: mclark@pu-process.com

Website: www.pu-process.com

Polyurethane Process Industries, LLC

1628 Roseytown Road, Suite7

Greensburg, PA 15601

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