2K Injection Molding

 

Packson - Expert in 2K｜Multi-shot

Multi-component molding is a highly efficient and cost-effective technology that enables the molding of custom plastic parts using two or three plastic resins or colors in a single operation, resulting in faster cycle times and flash-free products. As a leading expert in this technology, Packson has mastered the process and has been manufacturing parts using multi-component molding for many years.

 

With our state-of-the-art 2K injection machines and advanced 2K technology, we are capable of manufacturing various types of 2K molds. As your competent partner in this area, Packson is committed to providing you with the highest quality products and services. We would be glad to support you in any way we can.

 

2K with ROTATION TABLE

The 2K technology with rotation table is a highly advanced and mature technology that offers significant advantages over traditional over-molding techniques. This technology enables the simultaneous injection of two colors, resulting in high efficiency and exceptional stability. Additionally, this technology can be applied to a wide range of products.

 

The process involves several steps. First, part #1 is injected. Next, the core side rotates 180° in the vertical direction. Finally, in the next cycle, part #2 is injected, followed by another injection of part #1. This process enables the production of high-quality products with exceptional precision and accuracy. Packson has extensive experience in this technology and can provide you with exceptional products and services.

 

2K with transfer by robot

The 2K technology with transfer by robot is a highly efficient and cost-effective alternative to the rotary table method. This technology involves the use of a robot arm to switch the molding part, resulting in significant savings in equipment investment costs. This technology is commonly applied to simple products and products with metal inserts.

 

The process involves several steps. First, part #1 is injected. Next, the robot arm transfers the part #1 to the second molding position. Finally, in the next cycle, part #2 is injected, followed by another injection of part #1. This process enables the production of high-quality products with exceptional precision and accuracy. As a 2k moulding factory, Packson has extensive experience in this technology and can provide you with exceptional products and services.

 

2K with CORE-BACK system

The 2K technology with core-back method is a highly cost-effective solution that reduces the number of core sides required compared to the transfer method while still achieving the 2k injection services process in a single mold. This technology offers exceptional cost efficiency and is commonly applied to functional parts without high surface requirements.

 

The core-back method also offers excellent quality stability, as the two molding steps can be completed in a single cavity, avoiding part warpage issues during mold open and part transfer. This method is more stable than the over-molding method, resulting in high-quality products with exceptional precision and accuracy.

 

The process involves several steps. First, part #1 is injected. Next, the core insert is set back to release space for the molding part. Finally, part #2 is injected. This process enables the production of high-quality products with exceptional precision and accuracy. Packson has extensive experience in this technology and can provide you with exceptional products and services.

 

What is 2K Molding?

2K injection molding, also named a double injection, two-color injection molding, or 2 shot molding, is a process used to produce molded parts from two different materials with two colors.

 

As the 2k moulding factories, we operate 2K injection molding at one machine and perform two injections in one cycle. For the first cycle, plastic material is injected into a mold. Then rotated automatically and mixed another property of plastic, which was injected into the mold by the second nozzle.

 

2K injection molding integrates two different grades of materials, like hard and soft materials, to make a perfect combination for production. Two-color injection molding is widely used in a variety of industries, and it also allows for using clear plastics, colored patterns, and new style designs, which help to make functional products like medical plastic parts and reach the marketplace value.

 

2K Injection Molding Design

2K Molding Design is a pivotal factor for molding success. The following are factors that will influence 2k Injection molding: dimensioning and location of the sprue gates, dimensioning of shear edges, flow aids, cooling and ejector techniques, etc. We apply our expertise in the 2k moulding process to keep making good 2K mold designs, and we are committed to making durable molds that operate efficiently, operate easily, and are easy to maintain and mold production.

 

The following are the points that we need to consider during the 2K mold design:

 

Shrinkage of plastic material

 

Wall thickness

 

Cavity Numbers

 

Plastic material flow systems-Runner and Gate

 

Cooling system for around cavity and core

 

Ejection System

 

Air venting

 

Applications of 2K Injection Moulding

2K medical injection moulding is perfect for combinations of hard and soft plastics and also if you want to process 2 colors of plastic in one product.

 

2K injection molding is a good way for you if you want to combine two different materials like hard material and soft material into one product by injection molding processing. We create full products in 2 steps by two color injection molding. The most common example made by 2K injection molding is bicycle handlebar, automotive button, toothbrushes with hard handle and soft handle piece, medical diagnosis machine control button, etc.

 

2K Molding Design Guide

The 2K injection molding allows us to integrate multiple properties into one product: for instance, layered products, combinations of hard and soft plastic for making different color combinations.

 

The 2K injection molding allows us to combine two different properties of the material with hard and soft plastic for making two different colors. 2k injection moulding has wide applications and many strengthes.

 

Here are some advantages Of 2K Injection Molding：

 

One-stop finished part without secondary processing and assembly steps

 

Excellent adhesion to the plastic part

 

Quick cycle times

 

The high degree of automation

 

High efficiency

 

Stable molding processes

 

Low-cost molding