Container Mold

Ability to Produce Detailed/Complex Geometries
With the right tool design and a scientific molding approach to process optimization, injection molds can help manufacturers produce highly complex, detailed plastic parts in large volumes with virtually no deviation. The key to consistency is the comprehensive data collection and analysis at the center of scientific molding, as well as the engineers trained in the process. Specialization is required to accurately develop and document the specifications, settings, and steps required to create a tightly controlled and repeatable manufacturing process.

Efficiency
An experienced custom injection molding partner provides manufacturers with a decided advantage in terms of efficiency. The molder’s teams — from engineering through production — likely have decades of expertise to draw upon when determining how to optimize part design and manufacturing. Implementing best practices generally streamlines time and cost commitments. For example, focusing on design upfront minimizes problems and costly redos, and incorporating value-added services combines production process steps for utmost efficiency.

Strength & Versatility
Of all the benefits of choosing injection molds, the steady increase in the strength and versatility of plastics may be most appreciated. Today’s lightweight thermoplastics can withstand even the harshest environments on par with — or better than — metal parts. Additionally, plastics are versatile. There are more than 25,000 engineered materials to choose from for complex injection molding applications. High-performance blends and hybrids can also be formulated to meet very specific part requirements and characteristics, such as high tensile strength.

Ability to Simultaneously Use Multiple Types of Plastic
Complex part designs commonly require components made of different materials. While seemingly a matter of simple choices, safely combining plastics can be extremely complicated. The plastics expertise of the molder’s project engineers guides compatibility, and helps prevent defects, injury risk, and warranty claims.

Thin Wall
For complex part designs requiring tight tolerances, injection molders can achieve designs accurate to within +/- .001 inches. These measurements aren't only possible; they're repeatable across production runs and equipment.

Shorten Product Development Time
Different skill sets held by injection molding engineers can help OEMs achieve a shorter product development timeline. Doing so means faster production cycles and getting defect-free parts to market quickly — a decided competitive advantage for manufacturers.

Multiple Finishes
A smooth surface is the desired final look for most injection molded parts. However, it’s not the appropriate finish for every application. Depending on the physical and chemical properties of the plastics used, injection mold allows for surface finishes that don’t require secondary operations — from matte finishes and unique textures to engraving and more.

High-Output Production & Consistency
High-output production of complex plastic parts — especially those with tight tolerances — requires a consistent, repeatable process. Injection molding is an ideal solution since parts are produced using the same tooling, combined with the molder’s continuous improvement practices that incorporate current leading-edge technologies.

Speed to Build
Building a brand new mold is often one of the longest lead times in your project. Molds can be built in just a couple of weeks or mold building can take several months. When it comes to the speed of mold build, evaluate your true project needs rather than just how quickly it can be built. If you are still trying to prove your concept, you can likely expect a prototype or R&D mold to take 3-6 weeks. If you are ready to run high-volume, a production-ready mold may take upwards of 12-18 weeks. What is most important is collaborating with your manufacturing partner. Often, there is an intermediary solution or future planning that can help alleviate anxiety with longer lead times. This can include beginning with an R&D mold and building a production mold while you get your first parts in hand, or relying on interchangeable steel inserts with different geometry iterations.

Cost of the Initial Mold Build
With molds ranging from $5,000 to $100,000 or more, it is critical to build this line item into your budget early. An R&D mold for a simple part is going to be much cheaper than a multi-cavity, production-level mold. Several factors impact the cost of your mold, including mold classification, the complexity of your part(s), mold cavitation, and specialty molding features. A responsible injection molding partner will help you understand what goes into your mold building price, and help you get the most bang for your buck.

Project Development Stage
Where you are in your project development stage is a critical factor in mold selection. Typically, it is broken into: Design, Prototype, Pre-Production, Production, and High-Volume. In the early stages, you can typically expect a lower cost, lower construction quality mold. That is because these stages often include multiple design changes and revisions. Some companies are eager to jump into a production-ready mold as a way to avoid paying for several prototype molds. This can be dangerous, as the cost and time for mold changes and modifications increase substantially for these molds. On the flip side, some companies producing parts at higher volumes feel nervous about committing to a production mold. These companies end up spending more money in new molds and mold repairs over time, as the prototype molds degrade in quality. Being realistic about where you are (and where you want to go) in your product development will save you time and money.

Part Geometry or Complexity
Certain part geometry and features require different moldmaking approaches. As such, some parts have to be made using hardened steel (or steel inserts) rather than the softer materials typically used in R&D tooling, like aluminum. Additionally, material selection will also play a role in moldmaking. Some plastic materials do not interface well with certain mold materials. For instance, a part made with glass-filled nylon, even in prototype, will need to be molded in a higher quality mold than a part made in standard polypropylene.

Quantity of Parts to be Produced
Finally, you’ll want a general baseline for the number of parts you want to produce from this mold. Is this a “test” mold that will only run a few hundred parts? Or, are you hoping this will be the mold that takes you into millions or tens of millions of parts? You may have a firm design that is unlikely to change, but still only need an R&D or pre-production mold because you only expect to need a few thousand parts. Conversely, you may have a design that may change but is highly complex with fine features. A good option is a mold that has hardened steel inserts, which costs more, but allows the flexibility of change until you firm up your final design.

Zhenke Mold is a company that can manufacture Thin Wall molds and has many years of experience in mold design and production. 23,000 square meters of construction area and advanced equipment enable our factory to quickly create value for customers.