Injection Moulds

Injecion Moulds


What are production injection moulds?

Production injection moulds are built to withstand higher volumes of plastic injection moulding cycles. They are made with P20 steel or NK80 stainless steel, and typically last over 100,000 cycles. Moreover, we provide a lifetime warranty on production moulds. As long as we continue to make your parts in our facility, we will maintain and repair the tool as needed at our cost.
 
Can I make design changes on production moulds?
 
Yes, making design changes on production moulds is possible with us. And our engineer will coordinate with you on CAD file changes and rework the mould accordingly. You will receive revised samples for your approval prior to production. 

Advantages of Production Injection Moulds vs.High-Volume 3D Printing
 
Lower Cost on Production Runs
While 3D printing doesn’t have the upfront cost of a mould, as injection moulding does, it also doesn’t reduce the unit cost over time, and injection moulding does. Plastic injection moulding can quickly become the more cost-efficient option with a production run of as little as a couple hundred units.
 
Faster Production Time
Most of the time for plastic injection moulding is spent on creating the production mould itself. During the actual production run, a set of parts can be created within several seconds. For a 3D printer to make one part, it can take anywhere from 20 minutes (a very small simple design like a washer or nut) to over several hours (more complex or larger pieces). This means producing large quantities of parts won’t have a noticeable effect on the total time need for plastic injection moulding. On the other hand, adding more parts to an order can add days, weeks, or even months for a 3D printer to fulfill the order.
 
Higher quality products
The most common 3D printers are Fused Deposition Modeling (FDM) machines. This means the printer creates a part by repeatedly heating up a drop of plastic and adding it to the part one drop at a time. Each layer is allowed to completely cool before the next layer is added. This layering can introduce new structural weak points as the layers can sometimes be prone to separation.  For Plastic injection moulding, the production mould is completely filled with molten plastic and then allowed to cool. Since the part comes out as one piece, plastic injection moulding doesn’t introduce any new structural weakness.

Advantages of Production Injection Moulds vs Plastic CNC Machining
 
Less Wasted Material
On average, even with the extra connection pieces (runner), injection moulding produces less wasted materials than CNC machining. This is because CNC machining starts with a solid block of material and then the part is cut out from the block. On very small production runs this cost maybe negligible. On larger production runs, and with more expensive material, this waste can add up to significant cost.
 
Less Production Time
CNC machining doesn’t require any upfront tooling. Once a CAD file has been finalized, it can be sent to production. CNC machining shines when there is a small production run. Once you get to a certain amount of parts in a run (this is determined by part size and complexity), it becomes quicker to produce parts with injection moulding.
The biggest time sink for plastic injection moulding is the creation of the production mould. Once the production mould has been created and properly set up, it takes only a few seconds to produce a part. The larger quantity of parts in a production run, the larger the time savings over CNC machining.
 
Lower Cost On Higher Production Runs
For CNC machines, each part has to be manually placed in and removed from the machine, so the cost per part is fairly static over production runs.  For plastic injection moulding, the production mould is by far the most expensive item. After the mould is created, the parts are fairly inexpensive and fast to produce. Since plastic injection moulding is fast and doesn’t require human interaction once the production mould has been setup, the cost per piece decreases as quantity increases. Depending on the complexity of the part, it can be cheaper to use plastic injection moulding for as few as a couple hundred parts.

How long does a plastic injection mould last?
 
These custom plastic injection moulds will typically last well over 100,000 cycles. Moreover, We offer a lifetime warranty for these production injection moulds. As long as we continue to make the parts for you, we will maintain and refurbish the tool as needed at our own cost. Making design changes on production moulds is possible with us. Our engineer will coordinate with you on CAD file changes and rework the mould accordingly. You will receive revised samples for your approval prior to production.
 
What is the process for injection moulding production?
 
Our instant plastic injection moulding quotation team and mould frame sharing technology enables us to simplify and shorten both the quoting and tooling manufacturing process for custom plastic injection moulding.
 
1. Send your 3D CAD file to get an instant mould and part quote 
2. Upon order confirmation, we start the mould and part order process 
3. Tooling design review by our engineers 
4. Upon design approval, we begins building your injection mould 
5. Customer examines samples for approval 
6. Part production begins