Our process of manufacturing aluminum castings is the process of choice for many companies for a variety of reasons. For financial, logistical, and technical reasons, Permold enables you to Gain The Advantage.

#1. high strength
 In our Permanent Mold Process, molten aluminum is poured into a metal mold that rapidly chills the aluminum. This causes the metal to solidify into a very fine-grain texture free of porosity and trapped gas. In turn, this gives our castings superior metallurgical properties, a high degree of pressure tightness, and an over 10% strength advantage over sand castings.

# 2. less machining
 Machining is a costly operation. Gupta Permold castings strive to eliminate machining and its costs by providing close dimensional control, a smooth finish, and total repeatability. Surfaces can be cast truly flat, free from any draft or taper by suitable mold design. Time after time, switching from other castings to Permanent Mold has cut our customers' machining costs dramatically. However, if machining is a necessity, our Machining Division is here to help.



#3.flexible quantities
Another way Gupta Permold can meet your most demanding requirements is with flexible production-run quantities. The activity of the Double Elbow casting featured to the left is less than 250 pieces per year while that of the hand-wheel is more than 90,000. Both are possible due to our proprietary mold designs which balance tooling costs and piece prices. Flexibility is just another way we provide first class service to a wide variety of customers.
#4. low cost
 Perhaps the greatest advantage of our castings is our low piece and tooling costs. Reducing machining gives our customers a low piece cost while tooling costs are kept low by our skilled engineering and mold makers. They use their years of experience and extensive knowledge to produce innovative mold designs that result in tooling costs comparable to sand casting. In fact, Gupta Permold has produced a complete Permold tool for only $1,200, which we are convinced must be a record of some sort.

#5. fine surface finish
 Gupta Permold castings have a finish that is fine and smooth enough for O-ring seals and gaskets. They are also smooth enough to be put against metallic surfaces in mating applications. In addition, our castings always have a clean, silvery appearance that eliminates the need for costly operations like polishing. Moreover if needed, our castings also can be easily welded, impregnated, tumbled, painted, plated, anodized, e-coated, polished, and cast with crystal clear letters or logos. Try our Metal Finishing Center if the raw cast finish won't sell your product.



#6. molded inserts
 One of the most unique advantages of our Permanent Mold Process is the ability to cast molded inserts. As you can see, the Speed Sensor Bearing Cap is cast with a stainless steel insert to provide an extra-hard surface while keeping the rest of the part in lightweight aluminum. The Front End Cap pictured to the left is cast with four fully threaded brass inserts to provide durable, wear-resistant threads. In high-volume situations, cast-in threaded inserts are sometimes even less expensive than drilling or tapping. Either way, molded inserts are a very potent cost-saving technique available only through Gupta Permold.
#7. close tolerance
 Our castings are made in metal molds so dimensional variation from piece to piece is negligible and close tolerance is consistently held. Because of our ability to achieve the highest accuracy and precision, we have successfully cast many parts that have been used without machining resulting in remarkable savings for our customers.

#8. high quality
 Process control is the key to guaranteeing high-quality castings. This is probably why Gupta Permold exceeds the industry standards for internal scrap rates. In summary, Gupta Permold strives for Zero-Defects by continuously monitoring all processing and performing a 100% final visual inspection to make sure only the highest quality castings reach our customers.

#9. complex shapes
Our molds are machined out of blocks of high-grade steel. As evidenced by the Blade Hinge casting, complex shapes with thin walls can be cast using ingenious coring techniques so no machining is needed. In some cases, it is even possible to cast undercuts. Fully machined cavities, intricate coring techniques, and state-of-the-art molding make complex aluminum parts a routine task for Gupta Permold.