2K注入成型& Co injection molding


除了我们1 k注塑件,Stebro Mold has become well-known for its 2K moulding capability. Our facilities and expertise enable us to produce complicated 2K parts from two different polymers, especially when it comes to complex geometries. We can help you to optimize the 2K plastic part design, select the best materials that meet bonding requirements for 2K mold design, 2K mold manufacturing, and co injection molding manufacturing, all are under one roof.



Two shot injection mouldingPart design

  1. Transitions between wall thickness should be gradual to reduce flow problems, such as back fills and gas traps.
  2. Deep, unventable blind pockets or ribs should be avoided.
  3. 长抽取应有每侧3-5°的草稿,以帮助组件弹出。
  4. The TPE thickness should be less than or equal to the thickness of the substrate to prevent warpage; this is especially critical for long, flat geometries.
  5. 产品中均匀的壁厚是获得最佳成型周期时间并避免缩小标记的均匀壁厚。壁厚范围从1.5 mm-3 mm不等,可确保在大多数过度过度应用中良好的粘结。如果该零件需要使用厚的TPE截面,则应将其核心以最大程度地减少收缩问题,减少零件的重量并降低周期时间。
2K Injection Mold Design

2K Injection Mold Design


  1. Shrinkage factor for both materials.
  2. Plastic component wall thickness, uniform wall thickness preferred.
  3. 模具中的空腔数
  4. 塑料材料喂养系统。跑步者和门
  5. Core and cavity cooling system
  6. 组件弹出系统。
  7. 为了避免燃烧标记,需要通风孔。
  8. 注射成型类型

Variations of two shot moulding

There are a few variations of two shot moulding, including rotary platen, movable core, and overmold. The first two require a second injection unit, two runner systems, and two processes. The latter, in most cases, involves two separate molds—one for each material—but can also be run with one mold, two runner systems, and pick-and-place part transfer, either manually or with a robot.

2K Mold Manufacturing

To speed up the mold manufacturing process without sacrificing quality, you need the right technology. We use UG to design and manufacture molds. The 2K Mould manufacturing was done toally according to the 3D mold design. For manufacturing the 2K mold, we use different manufacturing machines such as Mikron CNC, AgieCharmiles EDM, Sodick Slow Wire Cut machine, Grinding Machine and Gun Drill Machine. After machining all the components, we have to measure the key size on the CMM machine. It is very important to avoid flash at the parting surface.



我们的2K Engel注射成型机不仅用于2K注射成型生产,而且还适用于2K模具试验。



We offer the injection molding on state-of-the-art injection molding machine Engel with closing force of 130T and rotating table, we are planning to buy another 260T 2K Engel Injection molding machine in 2020.
我们提供了有关2K技术领域的完整支撑物 - 从内部产品开发,一部分优化到两个射击模具制造,2K霉菌测试和串行2K零件生产。






  • Stable production processes and high efficiency
  • 较低的零件成本与过度和组装零件相比
  • Enhanced tactile and cosmetic product features
  • 高精度和稳定的零件质量
  • Improve the touch feel
  • Expanded design possibilities
  • Optimum bonding with minimum time and labor

Disadvantage of 2K Injection Molding

  • 2K injection mold and 2K injection molding process cost is higher than single injection molding, but the cost can be covered because of the assembly cost.
  • 两种塑料材料之间的组合必须很好

Applications of co injection molding:

  • Soft-Touch enhancements, combining thermoplastics and silicone in one component, such as hand tools, writing instruments and toothbrushes
  • Performance improvements, combining different material properties for an Ideal solution.
  • Enhance cosmetics features, permanent graphics through the use of additional colored resins.

Stebro Mold is pleased to advise you as a stong 2K injection mold manufacturing and 2K injection molding partner. We will work with you to optimize the part design, select the suitbale material, choose the cost effective 2K mold and two shot molding solution. We have the Engel 2K Injection molding machine with rotary plate in house for 2K mold trial and 2K injection molding production.

了解更多2张Shot Mold Solutions,请随时与我们联系。

Quality 2K Injection Molding Manufacturer, From Part Design to Final Delivery, Affordable Price, Fast Delivery, Free Technical Support, Class A services.