Overmoulding is a great way to add value and functionality to your product, but it’s not as straightforward as it might seem.

With years of experience and continuous refinement, we understand the intricacies involved in controlling a complex system to achieve the highest quality results.

During molding, after the melt is plasticized in the barrel, open/close valves 2 and 4 control the order of the melt entering the nozzle and the proportion of material discharged, then the nozzle is injected into the mold cavity increase. Various plastic injection molding products with different color mixing effects can be obtained.

Our hundreds of combined years of experience in tooling design and expertise in simulation include being rated in the top 10% in the world for mould-flow expertise. This level of expertise allows us to get your tooling design right the first time, at speed, utilizing the capabilities at our global innovation centre.

2k moulding or multi-shot injection moulding is a powerful technique that offers cost savings and efficiency gains to produce a quality product.

Double Injection, sometimes known as 2 material 2 shot molding or 2K molding, is an innovative manufacturing process used to produce complicated molded parts from two different materials.

You can improve the practicality and aesthetics of plastic parts by displaying them in two different colors, or by displaying regular patterns or irregular moire-like patterns on plastic parts.

For over 75 years, Rosti has been a leading provider of plastic injection moulding solutions, manufacturing millions of products that enhance everyday life.

Small lens double shot design: The first shot is opaque, the second shot is the lens, the first shot is as high as possible and the second shot is PMMA.

At Rosti, we take pride in our ability to deliver top-notch moulding solutions, including multi-shot and 2K, for your plastic manufacturing needs. With years of experience and a commitment to excellence, we believe we are the best choice for your project.

We believe the two key parameters to a successful product are expertise in tooling design and process engineering capabilities.

Transparent and opaque dual shot design for decoration: the first shot is an opaque material, the second shot is a transparent material, the opaque material is usually hot PC, the second shot transparent material is PMMA or PC. Your PC should be sprayed with UV to protect it. PMMA can be UV or enhanced. If there are letters on the surface, you need to select UV.

Matching materials for two-shot injection molding must meet two basic compatibility requirements: adhesive compatibility and process compatibility.

There must be a constant temperature difference between the melting points of the two materials. Normally 60 ° C is recommended, and at least 30 ° C is recommended. The material of the first shot has a high melting point temperature. Usually, the first shot is a PC. Or on PC / ABS, the second shot is TPU or TPE. , PC thickness is 0.6-0.7mm, the software is over 0.4mm.

There are two barrels, and the structure and usage of each barrel are the same as a normal injection-molded barrel. Each barrel has its own passageway that connects to the nozzle, and on-off valves 2 and 4 are also attached to the nozzle passageway.

DGMF Mold Clamps Co., Ltd mainly offers a wide range of Mold Clamps and Mold Components. Used in processing machinery especially on plastic injection molding machines, and pressure dies casting machines.

To maintain our high standards, we conduct an annual benchmark assessment. This assessment helps ensure that our engineers are up-to-date with the latest techniques and technologies, ensuring that your project benefits from the most advanced process engineering capabilities available.

Overmoulding is a great way to add value and functionality to your product, but it’s not as straightforward as it might seem.

Also, there are two barrels 1 and 5, and the nozzle structure is a little special. In addition to the normal nozzle function, it can also be rotated by gear 3 attached to the rear.

Additionally, our advanced process engineering capability, honed through years of experience and supported by our technical academy, guarantees that we can handle the complexities of multi-material, multi-temperature, and multi-pressure scenarios.

Our expertise and global footprint, over sites strategically placed in the Europe, Asia and USA, make Rosti your local plastic injection moulding partner.

Two-color mold: A mold that injects two plastic materials into two molding machines with the same injection molding machine, but the product is injected only once.

A Liquid Silicone Rubber material is a two-part platinum-cured elastomer that can be injected into a mould cavity to manufacture a part.

During molding, different colored melts are plasticized in barrels 1 and 5, gear 3 rotates the rotating shaft 4, and different colored melts alternately enter the mold cavity to obtain different colors and colors. A patterned plastic product that radiates from the center to the periphery.

Widen the contact area, make grooves to increase adhesion, use core pull on the first shot, inject the material of the second shot into the first shot, mold the first shot Make the surface of the surface as rough as possible.

This type of molding process, also commonly referred to as two-component injection molding, is usually completed with a set of molds and requires a special two-color injection molding machine. Generally, there are the following requirements:

Today, we talk about the 2K injection molding technology, a molding method in which two different colored plastics are injected into the same mold.

All of Rosti’s manufacturing sites have cutting-edge facilities capable of meeting the technical requirements of the most complex multi-material projects. With over 70 years of experience, our state-of-the-art simulation capabilities and global innovation centre, ensures that your tooling design is done right the first time, with speed and precision.

Multi-Shot Injection Moulding involves the simultaneous use of two different materials, two temperatures, and two different pressures. Such complexity demands a different level of process engineering capability. This is where Rosti shines.