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Welcome to the Home of Plastic Injection Molding
With 30 years of experience in the plastic injection molding industry, R & D Engineering has the know how and the skills to help you deliver your next plastic injection molding project. We can work with almost any type of resin and our injection molding machines vary in range from 5 to 70 ounce production.

Plastic Injection Molding Is Cost Effective
Plastic is known to be a versatile and economical material that is used for many applications, and plastic injection molding is the primary process for manufacturing plastic parts. The injection molding segment of the plastics industry provides over one-third of all plastics processed. Injection molding has made possible the cost effective and durable construction of millions ot items that improve our quality of life.

The process involves taking plastic in the form of resin (pellets) and heating this material until it melts.
The granular plastic resin pellets are fed by gravity from a hopper into a heated barrel), then the melt is forced into a mold. It then cools, the part is ejected, and the desired part or product is created. The cycle is repeated. The entire process usually takes less than one minute to complete for each plastic shot. In today's automated manufacturing environment much of this work can be done with robots. RD is here to serve you with a wide range of services.

Plastic injection molding provides low cost production for small and large run quantities. Using Six injection molding machines with various tonnages (75 to 500) and shot weights ranging from 3oz to 35oz, RD is ready to meet your injection molding challenge. Machines consist of a material hopper, an injection ram or screw-type plunger, and a heating unit. They are also known as presses, they hold the molds in which the components are shaped. Presses are rated by tonnage, which expresses the amount of clamping force that the machine can exert. This force keeps the mold closed during the injection process. Tonnage can vary from less than 5 tons to 6000 tons, with the higher figures used in comparatively few manufacturing operations. The required force is determined by the material used and the size of the part, larger parts require higher clamping force.

At R & D Engineering we work with clients that have complete plans and specifications or just an idea in their head. Our skilled engineers will assist you in developing a clear understanding of your requirements and help you make the important decisions that will speed your design to market.

Often times the difference between success and failure in production is the raw materials used. R & D Engineering excels in meeting this challenge. We process a wide variety of resins (plastic pellets)in our facility.

Robotic Systems Speed Product to Market
Our fleet of highly automated robots increase output and shorten product cycle time for our customers. Plus the improvements in work-flow create efficiencies that
save you money.

   
Complex Multi-Cavity and Family Molds
We currently have 2 mold designers and 4 experienced mold makers on staff at RD.
Our experience in building multi-cavity family molds can bring a cost benefit to your production requirements.
   
Packaging, Warehousing, and JIT Delivery Available
When the production cycle is finished, RD helps you speed product to market at just the right time by providing packaging services, warehouse facilities, and delivery.
   

 
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R & D Engineering, 690 North Chestnut Avenue, Earlham, Iowa 50072
Phone: 515-758-2262, murray.rdeng@mchsi.com

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