PET preform mould, preform mould design and price

We have served customers by developing  PET preform mould in China for the past ten years. We have provided molds of the highest quality and exceptional service to customers worldwide.

Topworks plastic mold company specializes in producing custom preform mould using the most advanced technology available to provide the best quality in the custom preform moulds industry.

Topworks Topworks plastic mold company has accumulated significant experience in the plastic injection molding industry over the last ten years in China. As a result, we have developed substantial knowledge and expertise that allow our company to offer the customers the highest level of skills, knowledge, and dedication in the preform mould market.

No doubt about it, Topworks can manufacture a complete set of PET preform moulds on time and with accuracy, at the best possible PET preform moulds prices.

It is also possible to customize the assembly of the PET preform mould to meet the specific needs of the customer, as well as custom manufacturing each PET preform to suit their needs.

The skilled workforce working for Topworks is specialized in more than one division, ensuring the creation of moulds with unique features when it comes to different types of plastic PET preform. Among our many capabilities is our ability to manufacture a comprehensive array of plastic preform molds.

In addition, the PET preform mould can be created right here in our facility, or the products can be made right here as well. With this service, everything you need can be made at one location.

preform mould

Topworks PET  preform mould features:

• The cavity number of PET molds ranges between 1 and 96;
• Developed on the premise of the latest technological developments, state-of-the-art preform mould construction has been designed in consultation with European mould style.
• Over 2.5 million injections of the same quality preforms held over the course of his lifetime.
• Moldflow analysis diminishes the amount of NG you can see.
• The global criterion screw neck was developed with premium nitride steel to increase its durability and hardness at the same time.
• ASSAB s136 or DIN 1.2316 steel is used for mould impression and insert and for the slide insert because the steel is the best available quality and precision. Its excellent hardness, superior polish, anti-rust and accuracy make it an excellent choice for PET preform moulds making.
• Patented correcting technique allows for better control of thickness and reduces possible the preform thickness disorder that might occur during preform injection molding.
• Innovative water hoses have been developed to reduce the leaking and reduce water spots on the preforms.
• The nozzle pin is connected to the hydraulic cylinder (Japanese or European Origin) and designed to be synchronized with the PET preform mould plates movement.
• 26MM,PCO28MM,25/30MM,32MM,38MM,48MM,52MM,62MM, Standard PCO neck finish

PET Mould Price Classifications:

• High price: Pneumatically-driven valve, shut off nozzle.
• Low price: Long relics
• Medium price: Short relics

PET preform Mould design:

Typically, to fulfill the requirements for designing a PET preform Mould for production, a preform mold must have functional strength, possess sales appeal, be competitively priced, and fulfill practical characteristics.

It is important to design a preform mould so that the most appropriate steel and processes will be utilized to make it economically feasible for the manufacturer to manufacture the PET preforms.

Our Preform mould features as follows:

• Cooling Channel set-up

An especially designed set-up of water cooling channels combined with special finishing reduced the overall cycle time. Each particular water channel was specially processed to minimize the chance of jamming.

• Correction Technique for Core Off-Centered

It is possible to make a difference in preform’s wall thickness of less than 0.006 mm by utilizing the Off-Center Correction Technique. The application of this system does not affect the longevity of the PET mould throughout its useful life;

• Pin-valve System

Using a Pin-valve type of Hot Runner System for the PET preform mold, this type of Hot Runner System is effective in reducing processing times, reducing part wear & tear and lowering gate trim costs, and at the same time cutting electricity consumption.

• Coil Heating

The Dual Heating and Cooling system can ensure that the result of heating and cooling is excellent and quality control is reliable. Heat coils keep the nozzles at a constant temperature through the full cycle time. Moreover, the Heater System is utilized to increase the hot-runner plate’s heating capacity with long life and effectiveness. We imported the heating band for the preform mould from Germany.

• Technique of self-locking

Our PET preform mould incorporates world state-of-the-art bi-axis insert alignment and self-lock system in line with global best practices.

Preform mold spare parts and after-sale services:

we are a devoted PET mould, preform mould, PET bottle mould manufacturer and maker in Huangyan, China.

Each set of PET preform mould undergoes strict mould trials, and preform mould trial video will be sent to the customer for confirmation before shipping from the factory and attaches a full set of the recorded parameter depending on their own and sole serial number.

Together with the PET preform mould, a full set of spare parts will be supplied for free to keep mold normal operation.

In the use of the PET preform mold, Topworks provides adequate spare parts to any request.

Topworks service department is very willing to provide technical support immediately for any possible request at any time. Also, we could send our engineers overseas for mold installing and adjusting.

PET preform mould video

PET preform mould with 8 cavities 发布人 stevencheng

PET preform molding troubleshooting

PET preform neck finish categories

PET injection moulding processing introduction

PET preform mould

PET, also called polyethylene terephthalate, is also known as polyester. At present, the most used kind is PET-GF; it is mainly for bottle PET preform manufacturing.

The rheological property of PET is better in the molten state, and the pressure effect on the viscosity is greater than that of temperature.

Therefore, it is mainly to change the fluidity of the melt by changing the pressure.

1.  Plastic processing .due to pet macromolecules containing grease, it is hydrophilic. Pellets in high-temperature water are more sensitive. The moisture will decrease the molecular weight of the pet, which would lead to poor color and brittle parts.
2.  Dry; the drying temperature is 150 degrees, time more than 4 hours. And generally, it is 170 degrees, about 3-4 hours. Whether the material is completely dry can be tested by a shot to air. The recycled material ratio is generally not more than 25%, and also the reground material should be completely dry.
3.  Injection moulding machine .due to the shorter stable time after melting and high melting point, it is necessary to use the injection machine with more multi-step temperature control and less plasticizing friction heat system .and all weight(products and runner) is not less than 2 / 3 of machine injection volume.
4.  PET preform mould and its gate design. Generally, PET bottle preform mould is installed with a hot runner system. There should have insulation plates (about 12 mm thickness) between the PET preform mould and injection moulding machine, and the heat insulation plate can withstand high pressure. Air venting must be sufficient to avoid local overheating or fragmentation, but the depth of the slot is generally not more than 0.03 mm. Otherwise, it is easy to invite flash.
5.  Melt temperature .it is 270-295 degrees Celsius by a shot to air, PET-GF can be set to 290-315.
6.  Injection speed. The fast shot can prevent premature injection solidification. But too fast will lead to a high shear rate and brittle products. The shot is usually completed within 4 seconds.
7.  Backpressure. The possible low back pressure is a better way to avoid wear. Generally, the backpressure is not more than 100 bar.
8.  Stay time and temperature. Stay time shouldn’t be long to prevent the decline of molecular weight, and the temperature should possibly avoid more than 300 degrees Celsius.

If the downtime is less than 15 minutes, shot to air is OK; But if it is over 15 minutes, it should use PE to clean the barrel, and the barrel temperature decreases to PE temperature.

Note: recycled materials cannot be added much. Otherwise, it easy to produce poor quality products.

If the mould temperature or material temperature is not proper, it is easy to produce “opaque” pet preform.

The low mould temperature and the fast cooling rate would achieve POOR transparent PET preform.

plastic preform moulding troubleshooting

Summary

Author Rating

Aggregate Rating

2.5 based on 3 votes

Brand Name

Topworks plastic mold

Product Name

PET preform mold

Price

USD 8000

Product Availability

Pre-Order Only