How to save on injection mould costs?

How to save on injection mould costs?

How to save customers the cost of developing molds should be the pursuit of every plastic mold factory.

Injection molding cost estimate

About Injection mold cost, many customer ask us:
why are injection molds so expensive?

The answer is similar : the injection moulding cost include many parts:

  • cost for injection molded part
  • cost for injection moulding labour
  • injection molding machine cost
  • injection moulding die cost
  • cost for injection mold base


At present, if you choose injection moulding China, many factories have good mold quality, but the price is relatively high.

We have customers in many countries who are just beginning to contact the mold industry. They have many problems with the price and quality of plastic molds.

Because of can’t afford the high cost of mold production just at the beginning, there are often customers asking if we can make a good mold at a lower price.

Of course, the price is relative.

The steel used, the accessories are good, the price will be high.

However, we should not spend our expenses on places that should not be spent.

Many domestic factories have applied their expenses to frequently modify molds, test patterns and other processes due to immature design and other factors, resulting in customer losses.

Every product should have its corresponding value, The mold factory should try its best to reduce the cost of developing the mold, rather than the price of the sky.

It is important to Save the cost of the Plastic injection moulds for new molders.

As an injection mold making Manufacturer, control the injection mold costs is necessary. So, how to reduce the cost? In order to control the cost of the injection mould, we need to analyze the impact of various factors related to the costs.

In terms of operations, we need to manage costs in the enterprise, including cost accounting, cost analysis, cost decision, and cost control.

Under the premise of ensuring product quality, scientific and reasonable management of all aspects of the factory production and operation process, to achieve maximum production results with the least production cost.

Injection mould Production and processing

Plastic Mold can be divided into four stages of research and development, manufacturing, sales, and service.

First of all, we need to set the overall budget report based on the previous price report and peer quotation level and combine the pre-product risk assessment ESI and other factors to give customers the mold quotation.

Optimized Plastic Parts Design

Plastic part design is the biggest factor affecting the cost of the injection mold.

if the plastic part design is unreasonable, for the mold business, it will be a disaster.

I have been working in an injection mold manufacturing company for more than 20 years, and I have experienced much more of this situation.

Sometimes in order to achieve a buckle, but plastic part engineers and mold designers do not have good communication, the cost of the injection mold will be multiplied.

Therefore, a plastic part designer must try to understand the knowledge of the injection mold

and making the design of the plastic part as far as possible for the mold works, do not increase the cost and the difficulty of making the injection mold.

Good communication is the most effective and direct measure to reduce the cost of injection mold。

Some plastic part engineers believe that the cost of the mold is the mold company’s business.

However, if the injection molding company and the mold manufacturing company is the same, then what will happen?

In fact, this is a social trend. The company is now operating better, are injection molding companies and mold manufacturing companies as one. The single company almost cannot survive.

Therefore, if the plastic part design is unreasonable, it will directly increase the cost of the injection mold.

Plastic Parts Design Modification

Injection mold companies often encounter such a situation:

In a project, the injection mold has just been designed, but the customers have some changes.

If it is a small modification, it does not affect the overall structure of the injection mold, it does not matter.

Sometimes the situation is more serious because if the plastic parts shape changes, the injection mold need to increase other parts, even the whole injection mold must be re-ordered. The cost will increase highly.

So we must reduce the design modifications. Now there are many rapid prototyping technologies.

Before making the injection mold, we can make a 3D module. By timely correction of the product 3D module, we can minimize the increase in costs caused by the plastic parts design modification.

In addition, The technical department applies advanced design software to increase the accuracy of mold design and fundamentally improve material utilization.

Injection Mold Design Improvement

Here divide into two cases, the first is rationality and machinability of the injection mold design.

General injection mold making companies, the design team certainly have the most experienced designers and young engineers.

We cannot require young engineers to design high-level mold. And for experienced injection mold engineers, without communications, they cannot design a perfect injection mold.

One of the most important and effective methods is the collective review.

There are many simulation methods, such as mold flow analysis, dynamic analysis of mold structure, try out the product and product design 3D comparison analysis, all of these can minimize the unreasonable cost increased by the injection mold design.

Finished plastic injection molding

Through design optimization, reduce the number of theoretical materials and improve material utilization.

The second case is a waste of design. If the customer only needs the injection mold to produce 500 samples, but we design mold with 300,000 capacities, in this case, the cost will be high and it’s a waste.

Reduce Tryout Times

Lots of injection mold making companies calculate the mold processing fees from receiving the order to delivery.

If the injection mold has several tryouts but still cannot be delivered, in addition, to fail the contract, there will lead to more processing fees.

Of course, the cost of the testing is also very impressive, uncontrollable injection mold testing times are a large blind spot of the mold cost control.

Analyze of the reasons for the too many mold tryout times

The first is the injection mold design has not been a full collective review, so the mold structure is unreasonable, which makes the mold needed to be fixed after the testing.

If the injection mold cannot be achieved after several improvements, the cost will be out of control.

There are some cases of mold design is good, but the injection mold is not well produced, making the test mode for no reason increase.

For this problem, many companies have to increase the injection mold measuring equipment investment.

The second is the selected molding process and injection molding machine models are not the best.

The injection mold is well finished, but the injection molded parts are not ideal, which will increase the injection mold tryout times and costs for no reason.

This is a common problem in some small injection mold factories.

The third is not fully understood the physical properties of plastic and even shrinkage rate did not engage inaccurately.

Therefore, before the design of the mold, we must clear about the physical properties of plastic, only this can effectively reduce the number of trial mode.

Injection Mold Materials and Standard Parts Purchasing

We should select stable, reputable suppliers. In the case of buying cheap materials to lead to injection mold problems, it will make the costs uncontrollable.

Although the responsibility of suppliers can be held, the biggest loss is the mold manufacturers and customers.

Summary, to control the injection mold costs effectively, we should do:

  • Reasonable plastic parts design
  • Reduce design modification
  • Improve injection mold design and processing
  • Good communication of product engineers and mold engineers

TAGMOLD Always focus on helping customer to save their cost of the custom made molds.

If you have any questions of china injection molding cost , please contact us immediately, thank you.

2019年6月11日 Industry News , , , ,