Injection Molded Secondary Containment

Custom Industrials Company (CIC) specialize in injection molded secondary containment.

We deliver plastic fabrication solutions including plastic injection molding, thermoforming, CNC machining, stamping, extruding and other plastic product or part solutions.

CIC's injection molded secondary containment provides the highest industrial standards via processes like JIT, EDI, FIFO, and lean manufacturing that are present in our strategies to meet client needs.

Contact us now for your injection molded secondary containment quote!

Plastic Injection Molding Defined

It is the most commonly used manufacturing process for the fabrication of plastic parts and plastic products from both thermoplastic and thermosetting materials.

The presses for plastic injection molding (also known as injection presses) vary in size from close-tolerance for small plastic parts to large plastic parts. The process uses molds in which the plastic is cold runner or hot runner depending on the end product. Hot runner is more complex and usually used when the part is injected into another part. The plastic injection molding process is rated based on pressure or tonnage.

Plastic injection molding is a form of plastic fabrication that can be used with the following materials: HUMW, PTFE, Ploypro, copolymer, PVC, CPVC, PVDF, HDPE, LDPE acrylic, polycarbonate, acrylic mirror, acrylic twinwall, cutting board plastics, Kydex, ABS, Styrene, PETG, Prismatic Lens, Prismatic Panels, Plastic Louvers Eggcrate, Arm-A-Lite Safety Sleeves, Rigid Plastic, Flexible Tubing, UHMW Tape, Nylon, Delrin, Phenolic, Cast Nylon, Urethan, Polyethylene, Polypropylene, Kynar, Halar, general plastics, performance plastics, lighting plastics, engineered plastics, corrosion resistant plastics, engineered plastic materials and more.

Capabilities include injection molded secondary containment, but are not limited to, plastic tanks, flat bottom tanks, conical bottom tanks, dip tubes, single use bag totes, stackable carts, collapsible tank designs, deployment equipment carts, filter integrity test carts, filter drying racks, fume hoods, containment cabinets, medical plastics, bulk chemical storage, secondary containment, tubing racks, gowning racks, gowning cabinets, scrubbers, coils, fiberglass grating, automotive plastic parts and an unlimited number of other OEM or end products.

Industries that use injection molded secondary containment include, but are not limited to manufacturing, machinery, packaging, building and construction, automotive, agricultural, textiles, transportation, electrical, electronic, consumer products, institutional products, food and beverage, oil & gas, oilfield, and more.

Specific injection molded secondary containment Fabrication Processes

1. Clamping: Herein, the original plastic material is put into the two molds which are tied together with the clamping unit. Each mold is connected to an injection machine for the further plastic fabrication process. Further, the two halves of the molds are pushed together by the hydraulically powdered clamping techniques. Though, the time of the dry cycle process may vary from machine to machine.
2. Injection: The raw pellets are forced into the injection machine to be molded further. The plastic material is actually heated under high pressure to melt. The molten plastic gets injected into the other molds for transmission of its shape and size. The overall injection time becomes challenging to calculate because of the complexity involved with the molten plastic's properties.
3. Cooling: At this stage, the molten plastic inside the mold starts to cool down. Then it solidifies into the desired shape. However, defaults like shrinkage may occur at this stage which can be avoided by the perfect plastic fabrication at the injection stage.
4. Ejection: After quite some time has passed for the cooling of the plastic material with qualities like ABS or PVC, engineers can now eject the molded part out. In such case, when it's difficult to release the mold from the hold, sometimes, a releasing-agent is spread over. Through a proper dry cycle time, we can estimate the time to be taken in each of these sections mentioned above. Once a molded part is ejected, the original mold is clamped shut, preparing for the next plastic to solidify inside the same.

Selection Decision for Plastic Injection Molding

1. Mold: The mold must be appropriate for the clamping area, which is estimated by the tie bars on the machine, restricting the molds which are larger than the clamping area. However, updated machines do have adjustable tie bars. Therefore, it can help mold different sizes of plastic at once.
2. Clamping: The unit must have enough force to keep the mold locked tight during the injection of the material. Otherwise, once the material solidifies, it will manifest side lines, which is not a good sign for the prototypes.
3. Injection unit: The barrel should possess a certain temperature level to melt the plastic inside the mold. The overall injection module of the machine should be able to supply the necessary shot weight with a sprue and other runner systems.

Other Forms of Plastic Molding

Plastic molding processes, including injection molded secondary containment, such as thermoforming, blow molding, extruding, and other plastic forming techniques are commonly used in manufacturing.

Thermoforming: Using this manufacturing process, only single-sided plastic fabrication can be done. Furthermore, thermoforming is divided into vacuum form and pressure form styles.

It has minimalized tooling costs, enabling a bright color palette and simple adjustments. In fact, thermoforming is best for producing 250 to 3000 units. Whereas, injection molding is appropriate for larger volume and production runs.

Main Types of Plastic Injection Molding

Hydraulic: It came into dominance back in the 1930s, and till date, it uses hydraulic cylinders to clamp the plastic together in the mold. These are best for producing automotive plastics which requires bulk production.

Electric: It was originally introduced in Japan back in 1984, but now it sells about half of the IMM machines in the entire USA. These machines have highly remote-controlled servo motor with even higher speed. This leads to faster, reliable, repeatable, and more correct operations.

Once it's digitally programmed, engineers can leave it unattended for large production which leads to less labor costs.

Hybrid: This manufacturing process of plastic injection molding has been in the market for decades, and Custom Industrials Company agrees to it as well. It combines the clamping force of Hydraulic manufacturing with a noise-free operation because of the electric machines. They come in two varities vertical and horizontal. Horizontal is the most common where the mold part or opens on the horizontal. The vertical molding machines are use for insert molding of metal components so the is no need for mechinical means to hold parts in a horizontal mold. Gravity holds the inserts in place. Metal parts such as threaded inserts, stamped parts and other higher temperature plastics that don't melt in the primary plastic are molded in this process. Molding plastics over other plastics is called overmolding.

Both types of molding machines work well for the thick and thin-walled parts of the plastic that is intended to be melted.

Custom Industrials Company (CIC) is able to handle all your injection molded secondary containment needs.

We are focused on delivering quality injection molded secondary containment for customized manufactured parts or products, which comprise of Metal and Plastic components.

Contact us for your no cost injection molded secondary containment consultation now.