What is Micro Molding?
Micro injection molding is a specialized form of plastic injection molding, focused on next-generation parts that need to be small but still retain tight tolerances and complex features. Many product developers don’t know that smaller parts can be made faster and cheaper on small machines.
The Micro Molding Process
Micro molding involves more than just using a small machine. The secret to making many tiny parts that are very close together is to control heat in the micro mold. To do this, micro injection molding machines have sophisticated temperature sensors and digital microcontrollers that are more precise than their larger cousins.
The barrel of the micro injection molding machine is much shorter than its full-sized counterpart. This makes it fast and easy to clean when changing over to new material. The greatest advantage of micro injection is that the micro molding machine can be cycled much more quickly while at the same time consuming far less resin. This results in great cost savings and reduced production time.
Micro Molding Applications
There are many cutting-edge technologies that need small, lightweight, and strong parts. For all of these and more, micro injection is an ideal solution. Our services can also scale up from a few grams to shot weights of 300 grams or more.
Micro Molding Frequently Asked Questions
What are the smallest parts micro molding can produce?
Part size is mostly limited by gate size. Shot weight is limited to a few grams, and part size is normally 3mm2. Consult our engineers to discuss micro molded part sizes smaller than this.
Can any type of plastic resin be used for micro injection?
Most conventional plastic resins are supported for micro molding, but it may not be possible to use additives (glass fiber reinforced) because this will impede the flow through a small gate.
How durable are micro molding tools?
Mold tools for micro molding are the equal of their full-sized counterparts and can last for 100K cycles or more, depending on resin.
Why Choose Star Rapid for Micro Molding
If you need to manufacture small plastic parts and components with micron tolerances, micro molding is your solution. This specialized process uses tiny molds and dedicated machinery to create high-precision small parts with a minimal investment. To get your micro molding project done right, you need a team with experience working successfully at this small scale. Here’s why Star Rapid is the smart choice.
✓ A Complete Range of Services
Even micro parts can sometimes need some form of post-finishing. We polish, plate, and machine even small pieces just like full-sized ones.
✓ Proven Success
Since we launched our exclusive micro injection mold service, our customers are reaping the benefits that come from optimal cycle times and minimal waste.
✓ Positive Material Identification
We leave nothing to chance when it comes to testing and verifying all raw material. People trust Star Rapid when the job absolutely has to be right.
✓ Design Optimization
Our toolmaking specialists carefully analyze every project in advance. We work closely with you to optimize for speed, quality, and reduced cost.
✓ Intelligent Quotations
Our proprietary algorithm generates accurate quotations fast. But every one is still checked by industry veterans for complete reliability.
Babyplast Micro Molding
Our high-quality, Italian-made Babyplast machines are specifically designed to offer the precision that’s necessary when working on small-scale parts. They have precise temperature and pressure controls for maximum efficiency, while using steel tools that on average are 40% less expensive than full-sized ones. This is just one of the many reasons why our micro molding services are a cut above.
Considering Micro Molding For Your Next Project?
Is micro molding right for your next product development project? Contact our manufacturing specialists for a free quotation and design review. We can recommend the solution that best fits your schedule, order volume, material, performance requirements and more.