7 Pros & 3 Cons: Plastic Injection Molding

Plastic Injection molding Malaysia is most commonly used by the best contact manufacturer Malaysia to manufacture identical plastic products in larger volumes.

However, like every process, it's important to know the precise design restrictions that have got to be adhered to facilitate the apparent benefits of successfully producing cost-effective, high-quality parts.

Advantages of injection molding

1) Fast production and highly efficient

Injection molding can produce a fantastic amount of parts per hour. Speed is contingent upon the entanglement and proportions of the mold, anywhere between 10-120 seconds per cycle time.

2) Low labor costs

Plastic injection molding in Malaysia is an automated procedure whereby a majority of the method is done by machines and robotics that a sole administrator can regulate and manage.

Automation helps the plastic injection moulding manufacturers Malaysia to scale back manufacturing costs because the overheads are significantly reduced.

3) Design flexibility

The molds themselves are subjected to extremely high.

As a result, the plastic inside the molds is compressed harder and open up space to be imprinted onto the section and for composite or intricate shapes to be produced.

4) High-output production

Thousands of parts are often produced before the tooling must be maintained.

5) Large material choice

There’s an outsized selection of polymer resins to settle on from. Multiple plastic materials also can be used simultaneously; for instance, TPE is often over-molded onto PP parts.

6) Low scraps rates

Injection molding manufacturer Malaysia produces little or no post-production scrap proportional to the conventional manufacturing procedure.

Most of the waste plastic generally appears from the sprue and runners. Any unused or waste plastic, however, is often reground and recycled for future use.

7) Ability to incorporate inserts

Metal or plastic inserts are often inserting molded.

Disadvantages of injection molding

1) High tooling costs and long found out lead times

Up-front costs are high thanks to the planning, testing, and tooling required. There are the initial design and prototyping (probably via CNC or 3D printing), then the planning of a prototype mold tool to supply replicas of the volume part. Lastly, and only after extensive testing during both stages, you'll finally injection mold a neighborhood.

2) Part design restrictions

Plastic parts must be designed with injection molding consideration and must follow the essential rules of injection molding, for example:

• Avoid undercuts and sharp edges the maximum amount as possible

• Use uniform wall thicknesses to stop inconsistencies within the cooling process leading to defects like sink marks.

• Draft angles are encouraged for better de-molding.

Don’t forget, because tools are typically made up of steel or aluminum, it is often difficult to form design changes. If you would like to feature plastic to the part, you'll make the tool cavity larger by cutting away steel or aluminum.

But to require away plastic, you would like to decrease the dimensions of the tool cavity by adding aluminum or metal thereto. Sometimes, it becomes extremely onerous and in most cases might call out for scrapping the tool (or a part of it) and resume from the initial phase.

Also, the load and size of the part will determine the tool size and necessary press size. The larger the part, the harder and expensive it'll be.

3) Small runs of parts are often costly

Thanks to the complexity of tooling, and therefore the necessity to rid the machine of all previous material before subsequent products are often made, the setup time is often quite lengthy.

Therefore small runs of parts have traditionally always been thought of as too expensive to injection mold.