Sino Mould Co. Ltd - A Professional PET Mould Supplier in China

Pet perform mould is one kinds of the well sale mould in China, now more and more customer buy PET moulds from China, it led to a big growth of PET mould supplier. And we are one of the PET mould suppliers in China, but we not only offer our customer a PET perform mould, but a good PET molding solution.

With 20 years’ developing, now we are not a simple PET mould supplier, we have our own mould manufacture and injection molding machine manufacture, as well as our own hot runner brand. We have ability to help customer set a company for PET preform molding and bottle production.

As a professional PET mould supplier in China, all of our sales people have mastered a certain degree of technical, so do not worry about the communication problems, if you have any inquiry and questions, our sales engineers can reply you at first time.

Our sales engineer can offer you a solution for PET production line. Here we have simple example.

If a customer want to make PCO 28mm 37g preform, and he need to make 80000-90000 preform per day, then we can work out how many cavity he need for mould, and how big injection machine they need. If the customer work 20 hours in one day, 85000/20/60=70.8, it means he need to make at least 70. 8 pcs preform in one minute, and for 37g preform, the cycle time is around 20 seconds, it means we can make 3 shots in one minute, so 70.8/3=23.6. The result shows that the customer need to make 24 cavities for that 37.5 g preform. And for that PET mould, injection weight is important when we choose the injection machine, 37g x 24 =888g, because machine injection weight is according to PS material, so when we calculate PET weight, we need to multiply by 1.35 (PET density). So when we choose the injection machine, the injection capacity should be more than 1200g. And then, we choose auxiliary machines according to the injection and production capacity, such as, auto loader, dryer, chiller, crusher, mixer, cooling tower etc.

Above is an extremely simple example. If any customer has a big production capacity, he will need multi cavity PET mould and it will have multi option for production line. For example, if customer needs to make 96 cavities mould to reach his capacity, he also can choose 2 sets 48 cavity mould, and using 2 small machines.

About the design, we have a professional design team, we can offer you suggestion about the PET preform design, and make PET preform design according to the bottle. Besides we have ability to make bottle design, and make bottle design according to customers’ conception. We have different types of standard perform design for water bottle. Most PET mould supplier in China will not make complete mould design, but we will make all our mould design in details including hot runner system, every screw and even seal ring.

Usually, other PET mould supplier will not have service to go out for testing mould and machine, but Sino Mould Co. Ltd has a service team, their obligation is travel for help our customer set up whole equipment, of course, customer can send engineer or technical person here, we can training them.

Even our customer don’t know any technical about the PET production, just make us know the detail requirements, then we will work out the mould cavity, recommend the suitable injection machine model, and auxiliary equipment, and list out the option solution for choose. Lots of PET mould supplier just knows PET mould, but they don’t know which solution is better for customer, we have an absolute advantage on this point. So we are not only PET mould supplier, we are PET molding solution supplier.

SINOMOULD offers a qualified Plastic Molds Manufacturing Services in China

Plastic molds manufacturing usually including mold design, mold tooling, and mold testing.

Mold design is very important in molds manufacturing, because all following mold tooling will be strictly according to the mold design.

Usually plastic mold manufacture can make the product design for the customer; of course, they also can check the customers’ product design according to the molds manufacturing requirements. For some product, we could not make design the same as real sample, because we should consider shrinkage, deformation, and remolding after molding.

Injection Mold maker will make the mold design according suitable injection machine parameter. For example, Clamping force, ejector distance & force max. & min. mold size etc. Usually one mold has various options mold design, it mainly reflects in mold running system, ejection system, and mold structure. A professional mold maker not only offers you a workable mold, they will consider the production efficiency during the mold design and plastic molds manufacturing. For example, the will try to make the waste runner small to reduce waste material, they will make best cooling system to reduce the cycle time, in that way, customer can make more products in the same time.

In general, a good mold design should have reasonable runner system, optimized cooling system, simple structure, save and stable ejector system…Mold design embodies mold makers experience and specialization degree.

With a good mold design, we can start the mold tooling. Here are some common and major processing steps: CNC milling, wire cutting, EDM, boring, drilling, and surface treatment…But only with good tooling machine is not enough, experienced mold maker known what machine tooling way is best suitable for molds manufacturing. For example, some hole in mold, we can use wire cutting tooling, and also we can use drilling machine; for words on the mold surface, we can make it by chemical corrosion, as well as laser lettering; some small engraving can be replaced by EDM tooling and so on. Any way the accuracy of the tooling machine will directly affect the quality of the mold, so lots of precision tooling machine is used in mold finishing step.

Besides these tooling machines, inspection machine is very necessary, a good mold maker will control every tooling step in molds manufacturing, after precision tooling, we need to make inspection to check if the machine tooling is in place. After mold finished machine tooling, fitting is very important molds manufacturing procedure. Good tooling will make the mold size very close to the design, but the mold still need to fitting on the machine, it will make the product in good appearance, and make mold testing more smoothly.

After finished mold tooling and mold fitting, we will test the mold. We consider the testing as molds manufacturing because we hope to check the mold problem during the mold testing.

If we test the mold carefully, we could not find out all mold problems, and it may bring us risk in the future production. Customer will use different injection machine to run the mold, so we should make sure the mold can running in different condition. We can use high speed, high injection pressure to test plastic mold, most defects will appear out under that kind of testing; if we can find the mold problem in outside, it is easy for us to solve the problem.

In addition, before ship the mold to customer, SINO MOULD usually makes simulative operation for 2-4 hours according to different mold; it will make sure we can offer a qualified mold to our customer.

A professional mold maker will control molds manufacturing strictly, to make sure they can offering customer a good mold solution.

SINOMOULD - Chinese Top Mold Making Company

As China had become the world factory, more and more overseas company and mold makers  are turning to China as an outsource for some of their injection molds. There are very real benefits to buying injection mold from China—competitive price, short delivery time and good after-sales service.

To choose a good mold making company is a very important thing for those companies outsourcing injection molds from China. A great mold making company has a very strict mold quality control system to ensure the mold quality. The molds are designed by talented mold designers who have decades experience in mold design. In a great mold making company, quality standards are strictly established and maintained.

Sino Mould Co., Ltd is located in China mold town Huangyan Taizhou Zhejiang province of China, where is enjoyed with convenient communication and transportation. It is near to Ningbo port and Shanghai. Sino Mould is a high-tech mold making company with experienced professional design work team, high precision mold tooling equipments, and experienced mold making team.

Chinese top mold making company Sino Mould is mainly engaged in the produce of precision mold, automobile part mold, pipe fitting mold, plastic package mold, etc. With a strong technology of mold making professional, it annually exports 1200 sets of injection molds widely used in home appliance, automobile parts, household products, bottle and jars, pipe fittings, etc.

A good mold making company should have strong design ability. Our strong design ability with advanced design software CAD/CATIA/CAE/PRO-E/SOLIDWORKS/UG provides our customer with service ranging from product design to mold structure design and a complete injection molding solution. We attach highly importance to the design processing, if we pay more attention to the design correction and accuracy can save a lot of cost and time for mold modification and improvement.

A great mold making company should have experienced engineers to follow up each projects, they play the role as a regulator in each project, and to offer solutions to perfect the mold structure and molding solution. We have a project follow-up team with 40 engineers to supervise 1200 sets of molds annually.

Mold making inspection department is the guarantee of mold dimension and molded product dimension. During the mold making process, we will measure the mold dimension and tolerance compared to the drawing to make sure the dimension is correct and will not affect molding. After the mold trial, we will send the sample to inspection department for dimension measuring.

Before shipment, Sino Mould Co. Ltd will do at least two hours production simulation to ensure the mold run fully automatically without problem in our customers’ factory. During the simulation production, we will record the injection parameters such as the mold temperature, injection temperature, cooling time, etc. Also we will take a video of simulation production and send it to our customer for reference when they get the mold into mass production.

After the mold trial samples approved by customer, we will do the mold shipment testing and inspection. Our QC department will test the mold hardness and cooling water testing, etc. Also we will send our customer the final report for shipment.

SINOMOULD – The Most Experienced IML Mould Manufacturer in China

IML is the abbreviation for IN MOULD LABELING. This is a technology to realize making label around the product inside of the mould. The advantage of IML Mould is the label can keep the color and remain on the product for a long time. As we know, normal label print on the product or stick on the product, the label will easy be crashed, and the color will be fade after sometime. So IML mould now is becoming more and more popular.

Sino Mould CO. Ltd is an IML mould manufacturer with more than 20 years experience. We have done various IML mould, for example IML mould for different kinds food containers, ice cream container, paint bucket, and hanger, mobile phone accessories, and storage containers.

Thin wall container mould is the most IML mould we have done. And it is also the most project customer inquired. In order to reach a higher quality for the thin wall container mould, we have done many adjustment and improvement to the mould structure

l  In order to realize the mould with longer mould life, the mould steel we are choosing is S136 imported from Sweden with HRC48-52. The inserts we are using is DIN1.2344 with HRC42-45. All the accessories will be DME standard; the mould base will be LKM standard. This mould structure improved the mould life.

l  In order to improve the efficiency of production, we make the mould with more cavities. We can realize the cavity to 8 cavities. The best mould cooling design and the copper brilliant used for the core part of the container making the cycle time lower. In this way, the production efficiency improved rapidly.

l  In order to reduce the cost of the raw material for customer, we can make the plastic design of wall thickness reduce less than 0.5mm.

l  In order to improve the quality of the plastic product, we have imported high precision CNC milling machines and examination machine from Italy and Japan. The precision can be controlled within 0.01mm by high precision CNC milling machines. And every part of the mould will take to the examination department for dimension examination. If the dimension is not reaching Sino standard, we will remake this part.

Except IML mould, we can also supply our customer one system for IML, including high speed injection machine, robot and different kind’s auxiliary machines.

For the high speed injection machine SINO-PM5H is manufactured by our machine research and development department. This machine consist five advantages

l  High precision

Using high precision aircraft grade Moog servo valve and advanced Kebab electric control, ensure precision injection screw position and product with high precision and good repeatability

l  High rigidity

Clamp system after FEA, mould clamp plate with low deformation, keep mould with high precision, and ensure high speed and stable clamp

l  High efficiency

Raw material charging, mould opening and ejector at the same time, it can short cycle time around 40%.

l  Energy saving

Raw materials charging adopt servo motor; it saves energy and controls the position precisely. It can save 30%-80% power.

l  High response

Accumulator as injection power source, with high precision Moog servo valve and low inertia ejector structure, the responsible time can reach 30ms.

l  Good plasticizing capacity

 Screw L/D=24~26, and screw with double thread + mixing, making the material mixing fully.

l  High security

 With fully closed machine door, mechanical, hydraulic, electrical triple protection

The robots for IML mould have the following characteristics:

l  High efficiency

l  High response

l  High steady

l  High accuracy

Sino Mould CO. Ltd offers you not only a high quality IML mould, but also one IML molding system and satisfied service.