Plastic mold manufacturing solution for United States

Plastic mold manufacturing solution for United States

Seasky Tooling provide plastic mold manufacturing solution for United States customer, also we offer plastic molding manufacturing. We offer plastic mold manufacturing and plastic molding service covered below appliance.

• Automotive appliance


• Electrical & electronic


• Instrument gauge


• Home appliances


• Printer copier


• Household appliance


• Industrials


• Medical appliances & device 


• Communication appliances etc.

Key feature for the plastic mold manufacturing solution for Unite States

• DME standard mold base


• DME standard mold components such ejection pin, latch lock, side lock and cooling connectors etc.


• Hydro-cylinder with Parker, AHP Merkle, HP SYSTEMS or local standard.


• Just purchase mold steel from qualified mold steel supplier such as ASSAB, LKM, DAIDO, SCHMOLZ+BICKENBACH, Finkl and  Schmiedewerke Gröditz Etc.


• You can choose DME or LKM mold base for mold manufacturing. We can use DME standard components for mold base.


• Mold base certification and mold steel certification


• Design For Manufacture analysis before the mold making to find out all of possible issue for your plastic product design


• Mold flow simulation analysis before plastic mold making to find out all of possible issue of your plastic product design and find best solution for plastic mold design.


• Most of customers from United States to buy plastic injection mold from US. We can offer reference customers.


• Injection molding parameter report and samples inspection report submit with plastic samples


• Weekly report with picture for plastic mold manufacturing progress


• Project manager who speak English work together with you, most of project manager with more than ten years experience for mold industry.

Documents for plastic mold manufacturing offered to customer after mold finish

• 2D Mold Drawing


• 3D Mold Drawing


• 3D Part Drawing


• Mold steel certification

• Mold base certification


• Heat treatment certification


• EDM drawing


• Mold Photos

• Mold Trial Video


• Molding Report


• QA Report

Plastic mold manufacturing solution for United States Trade Term

• EXW, FCA ShenZhen, FOB ShenZhen, FOB HongKong, CIF, DDU

Plastic mold manufacturing solution for United States

Turnkey solution to control plastic injection molding tolerance 1

Turnkey solution to control plastic injection molding tolerance

There are lots of people are talking about that how to control the tolerance for plastic molding. I combine my experience with a few exporter who have more than 20 years experience for molding industry. I hope following information will be very useful for you.

What will affect the plastic injection molding tolerance

• Plastic injection molding resin


• Mold manufacturing & injection molding project management including engineers, sales & communication etc.


• Plastic injection mold machining accurate


• Mold design concept


• Molding parameter


• Injection molding machine quality including brand, local or import one


• Injection molding machine selection including machine size, screw diameter, injection volume and clamping force etc.


• Quality control including inspection of mold components, electrode and plastic products

First of all we talk about the mold manufacturing & injection molding project management

Lots of people miss to control this on the plastic product tolerance. This is first process we should control the tolerance. We should control from the samples if you are mold factory, if you are mold or plastic product buyer, you should control this on the information offer process.

What we should offer to mold manufacturing factory and molding factory or ask from buyer to control the tolerance?

Plastic product 2D drawing: There should be tolerance label for all of the dimensions. This is target what customer need to reach. If you have surface finishing and secondary process for this products, please offer this information on the 2D drawing. Also please throw away the habit to talk to your mold manufacturing supplier for this kind of requirement on email. If not, you have risky to have your supplier to miss information if the one you are working have no good project management.

Plastic product 3D drawing : Have this drawing to provide to your plastic mold maker, then they check the details of the plastic product on the drawing. Also if your good and professional mold supplier limited on the capability, they will reply you.

I suggest you to read plastic injection mold life on our blog to know more about that the mold life for the tolerance and cost. Normally the accurate mold should be made with through hardness core and cavity. Please offer mold life for mold manufacturer.

Above process is to control the plastic product tolerance during the quotation, this is the communication process, and is the basic process to have tolerance under control.

How Seasky Tooling to control the tolerance on the quotation process?

• Lessons for all of the salesman to understand what we should ask from customer


• what we should ask based on different customers


• We clean individual cases up during our service, use this to help you and our salesman


• We have easy understanding form to collect customer demand to our CRM


• Professional engineers coordinate with salesman to check and study the information from you


• Also most of salesman have mold engineer experience

Based on above, we make sure we can get the enough information from you to proceed the quotation and assure you have no risky to miss the tolerance control.

Control the tolerance on different plastic resin

This is one of most important process to control the tolerance.  Different resin on injection molding with different dimension even if it is the same injection mold due to different resin with different shrinkage.

For the POM, PP and PE etc resin, they have big shrinkage, it is more difficult to control tolerance than PC, ABS, Nylon with glass fiber and PC/ABS etc. Normally PC, ABS and ASA etc. plastic resin with shrinkage lower than 6 ‰ is easier to control a few dimensions with +/-0.02 mm, assure it is possible to control to more accurate tolerance for a few dimension. We do not suggest to use the high shrinkage resin to have accurate plastic parts.

Control the tolerance on plastic mold design process

This is one of whole process to check the information provide by customer and manufacture the information on plastic mold design and input on plastic mold factory for mold manufacturing. Your mold supplier should consider following for the mold design and even more than these:

• Plastic resin shrinkage


• Plastic product gate location


• Safe steel for accurate dimensions


• Use the inserts as possible for the accurate dimensions


• Use the inserts as possible for the easy breaking feature of mold


• Consider the suitable injection molding machine


• Learn the plastic resin specification and input this on the mold design


• Consider the molding parameter during the mold design


• Prepare the solution to prevent the deform, short shot, burning etc. common issue during injection molding


• Mold designer have full check list to check the mold design even if you think you are very  professional


• Run the mold flow to test the mold design and plastic product design


• Optimize the mold design and plastic product design

Control the tolerance on plastic mold manufacturing process

• Choose the right process to manufacture plastic mold components


• Inspect plastic mold components including the electrodes and mold inserts


• Assure the plastic mold components is accurate


• Relieve the stress for the large mold core, cavity or mold plates after manufacturing


• Measure the plastic mold components and record


• Inspect plastic products dimensions after injection molding trial and record


• Measure deviated dimensions on the mold after mold trial. Find the clue to improve the dimensions on the mold


• Choose the right injection machine according to your injection mold including choose the right screw of injection machine based on the resin and plastic part, clamping force, injection volume, Min-Max mould thickness and ejector stroke etc.


• Record the molding parameter during mold trial, not only the parameter on the injection machine. You should also record the mold temperature, test the actual temperature of mold and set up temperature of injection machine.

Plastic injection molding tolerance control

If the mold is released for mass production, you should also control the tolerance of the injection molding parts. First of all you have to control the whole dimension, at least you should measure the biggest length,width and height of product. If this have no big change, this means your injection parameter should be correct probably.

Give more importance on the first 100 shots once you start the production. Once the mold running a few hours, the parameter should be not the same, you should check the tolerance, this is the reason why we suggest to check large size and accurate dimensions each hour. Please noted the mold trial is different as the production. Even if you got a good shot on mold trail, it is not the case you can get a good shot on long time production. Please check and record, you will learn lots of information.

Also you should measure the accurate dimension at least per hour to make sure it is correct. You can measure it more frequent based on your production quality control.

You should also check the following things during injection molding

• Plastic injection molding parts color


• Plastic injection molding parts surface finishing


• Plastic injection molding parts small feature including ultrasonic welding line, small bosses, small posts and small ribs etc.

Turnkey solution to control plastic injection molding tolerance 1

Custom plastic mold maker

Custom plastic mold maker

• Seasky Tooling is professional China custom plastic mold maker working for custom plastic mold making and custom plastic molding. We are making molds for plastic molding enclosure, plastic bracket, plastic cover and the other various plastic parts for medical device, automotive, medical, telecommunications, electronics, computer, industrial, biomedical, construction and consumer industries etc.


• All of the custom plastic mold making and custom plastic injection molding inquiries, we will reply within 12 hours.

Plastic prototype making by Custom plastic mold maker Seasky

• Plastic casting, 3D printing, SLA and CNC machining for custom plastic product prototype manufacturing. We will choose the most valuable prototyping solution for custom plastic product prototype manufacturing based on customer demand.

Plastic mold making by Custom plastic mold maker Seasky

• Seasky offer custom plastic mold making service. We have easier communication working flow chart and form to inquiry your custom plastic mold making demand to short our communication time to offer the custom service.


• Most of engineer in Seasky have more ten years mold experience, also most of engineers work in Seaksky more then 8 years.


• We build customer plastic mould specification archives, this means we can transform idea of your plastic mould specification very fast.


• Weekly report with picture for custom plastic mold to let you to understand the mold manufacturing progress.


• DFM analysis before plastic mold design to evaluate plastic product design and exchange ideas of mold concept. This will short our communication during the plastic mould design as we already have the same agreement for the mold concept during the DFM analysis.


• Seasky Custom plastic mold maker is willing to join into your plastic product development as well, we can offer the DFM analysis during your custom plastic product design.

Custom plastic molding manufacturing by Custom plastic mold maker Seasky

• Offer plastic molding production, we have no MOQ for molding production.


• We are Specializing in thermoplastic molding with all type of thermoplastic including, ABS(with glass fill), Polystyrene, Polypropylene(with glass fill), Polyethylene(with glass fill), Polystyrene, Acrylic,, Acetal, Nylon(with glass fill), PBT(wih glass fill), ASA, PVC, CPVC, UPVC, PC(with glass fill), PC/ABS, PPS, PPA, Elastomers, PPO, POM etc


• Bulk package or custom package for custom plastic molding parts are welcome.

Trade term

• EXW, FCA ShenZhen, FOB ShenZhen, FOB HongKong, CIF, DDU.

Shipping

• We can handle the custom plastic molds shipping and custom plastic molding parts shipping from China to global. Sure you can also use your forward to handle the shipping.

Custom plastic mold maker

Plastic injection mold steel

Plastic injection mold steel

What is plastic injection mold steel?

Plastic injection mold steel is the plastic mould steel used for plastic mold core and cavity and plastic injection mold base.

How to choose plastic injection mold steel for plastic mold base?

Plastic injection mold base

In China the default steel used for injection mold base is S5OC, it is similar steel as 1050 and 1055 steel in US and 1.1730 steel in Europe.  Normally for the small quantities plastic injection mold is okay to use this steel. But for the long term production and the mold life more than 1,000,000 shots, we suggest to use P20 steel for the plastic injection mold base. For the long term production mold, you can also choose the 420SS for the mold base as well. We will have more details article to talk more about plastic injection mold base steel in future on our this blog.

How to choose plastic injection mold steel for plastic injection mold core and cavity?

To understand this, we have to understand what will affect the steel selection for plastic mold, this is as following:

• Plastic resin used for plastic injection molding  

For the corrosive plastic resin, we should choose the 420SS stainless steel for core and cavity. For the plastic resin with fiber glass, we should choose the through hardness steel for injection mold core and cavity to improve the injection mold life and rub attrition, normally we can also choose the rub attrition through hardness steel for the long term production mold and plastic resin with fiber glass mold.  We should understand different plastic resin performance and plastic mould steel performance to define the plastic injection mold steel for core and cavity.

• Plastic injection mold life

For the injection mold life less than 300,000 shots and plastic resin is not special, we can choose the preharden plastic mold steel for core and cavity. For the mold life more than  300,000 shots and less than 1,000,000 shots, we have to choose the through hardness steel for core and cavity.  For more information for this topic, you can review our post injection mold base and plastic injection mold life. We will also have the SPI injection mold standard to talk more about this in future on our this blog.

• Plastic injection molding parts surface finishing

Regarding the high polishing or mirror polishing plastic molding parts,we should choose the 420SS etc. stainless plastic mould steel for core and cavity. For the texture surface, there is not so much limiting factor on plastic mold core and cavity steel. You can also understand this more to read plastic mold steel specification as below.

LKM plastic injection mould steel    SCHMOLZ+BICKENBACH injection mould making steel

• Plastic injection mold size

For the large size plastic injection mold to produce large transport plastic frame, automotive large parts, large plastic basket, large plastic barre and  large plastic garbage can etc. , normally it is to use preharden injection mold steel such as P20, P20+Ni and P20HH.

• Plastic injection mold concept or structure

Normally the core and cavity use the different hardness or use different steel to reduce the friction force, this also apply to the sliders and angle lifters. We may talk this more once we are talking about plastic injection mold design.

• Plastic injection molding parts tolerance

For the precise plastic injection mold, normally we suggest to use the through hardness steel for the core and cavity, also for the mold base A, B plate as well as ejection plate, we suggest to use P20 or harder steel than S50C. Also we talk about that we prefer to choose single cavity or less than or just it is 4 cavity mold for the accurate plastic molding parts mold.

Plastic injection mold steel

Plastic injection mold textures

Plastic injection mold textures

What is plastic injection mold textures?

Plastic injection mold texture is a kind of plastic injection mold surface finishing to landscape plastic product surface. In English, we also call plastic injection mold texture as mould texture, mold texture, mould texturing and mold texturing.

Application of plastic injection mold texture

• Promote plastic parts appearance and texture


• Decorative plastic injection products, make the products more beautiful and elegant;


• To overcome the defect of the printing and painting is easy to wear off


• To meet the visual requirements: as smooth as mirror product surface scratch easily, easily stained with dust and fingerprints, but also the defect of blemish, flow mark and surface ripples on the smooth surface in the injection molding process expose easily.While some leather grain, orange peel, wood grain and matt finishing etc.  decorative pattern can be hidden plastic injection products defect as above said, make the product appearance to meet the needs of vision.


• Production pattern (plastic injection mold texture) can make the product surface and cavity surface area accommodated a little air without forming a vacuum adsorption, this will make the demoulding easier.


• Anti-skid, anti rotation, has a good feel


• Made of pitting or sub surface, prevent light reflection, eliminate eye fatigue and so on

We can see lots of plastic products with texture such as office document equipment, recorder, video machines, cameras, car anti-collision frame, mirror, flower pot, tableware.

Plastic injection mold texture solution in China and how to communication for plastic injection mold texture during mold manufacturing

In China, there are lots of plastic injection mold texture company such as Yick-Sang， M-Tex Group and Yuan Su etc.  

US customers would like to use the Mold Tech texture. In China the texture company can make plastic mold texture as per the Mold Tech texture and your samples. Also Seasky Tooling Group China mold make can also offer the China plastic mold texture plate for your reference.

In Europe, as per our experience there are lots of customers have Mold Tech and VDI as texture reference. Seasky Tooling China mold supplier also understand this, you just need to offer the reference number, then we can have the texture.

Plastic injection mold texture in China is very mature industry. Some of the plastic injection mold texture have more than 20 years experience for plastic injection mold texture for automotive, electronic, medical device etc. various plastic mold.

If you need to point the plastic injection mold texture company such as Mold Tech and Nihon etc.  for us to make the plastic mold texture. It is also not problem for us. There are lots of oversea texture company in China have the factory to offer the plastic mold texturing service.

Seasky Tooling China mold supplier just choose the qualified texture company and what we choose we will let you know.

Send us China mold supplier Seasky Tooling plastic mold inquiry now 

Email: 

make@plastics-mold.com

 

Plastic injection mold textures

Plastic injection mold quotation

Plastic injection mold quotation

Domestic mold and export mold

Domestic mold: The mold leave in China for production, we call them as domestic mold.

Export mold: The mold should be exported to your plant for production, we call them as export mold

What kind of information you should offer for domestic mold quotation?

2D and 3D part drawing

• Plastic resin (we need this to specify the steel for mold manufacturing, if you do not know please let us know the function and use of the plastic product)


• Demand of the plastic product quantities  (we need this to calculate the mold layout )

What kind of information you need to offer for the export mold quotation?

If you are not very professional, plastic kindly offer following information

• 2D and 3D part drawing, sometimes 2d part drawing is enough for export plastic mold quotation. 


• Plastic resin (we need this to specify the steel for mold manufacturing, if you do not know please let us know the function and use of the plastic product)


• Demand of the plastic product quantities  (we need this to calculate the mold layout )


• Where the mold will be put into production, we need this to carry out what kind of mold stand you need.


• Injection molding machine layout(prefer)


• More information will be welcome

If you are very professional, please kindly  offer following information

• 2D and 3D part drawing , sometimes 2d part drawing is enough for export plastic mold quotation.


• Mold life


• Cavity layout


• Steel for core and cavity


• LKM standard, DME standard or HASCO standard mold base, if you need P20 for A,B plate of plastic mold base.


• More information will be welcome such as hot runner information, specify mold components etc.

If you have plastic product drawing but have the samples, please kindly offer following information

• We can design the product refer to your sample


• During the quotation, you can offer the part picture, part weight and resin type(if you do not know the resin type, you can let us know what the product used for)


• Before the mold manufacturing, we will have the samples to design the product


• Before the mold manufacturing, we will have the samples to carry out what exact resin you are going to use

What kind of 3d drawing format Seasky Tooling can read for plastic mold quotation?

• X_T, IGES, STEP, UG, Solidworks,Pro/E, CATIA

Plastic injection mold quotation