Preform Mould

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32-cavity air-sealed preform mold preform mold hot runner


Product features: short injection cycle, high efficiency, long life, low cost

1. Adopt advanced level special runner design

2. Mold cooling adopts circulating water to effectively improve the efficiency of product ejection

3. Mould fasteners use 12.9 grade high-strength bolts

4. The slider adopts a special tie rod structure, and the production efficiency of the product can be increased by 50%.

5. The mold body is made of imported P20/718 high-quality die steel or imported alloy steel, and the hardness of the steel is HRC28-HRC60

6. Mid-term modulation treatment, after tempering and nitriding treatment, the tool parts have good comprehensive mechanical properties, large rigidity, small deformation, later internal and external chromium plating treatment, good mirror polishing flatness, and high surface hardness (greater than HV850 ) And wear resistance, no deformation, greatly increase the life of the mold (at least more than 500,000 molds)

7. Main processing equipment: CNC milling processing center, precision carving processing center, deep hole drilling processing center

8. The product is suitable for injection molding, blow molding, bottle blowing, and production of various plastic products. Impact resistance, abrasion resistance, acid and alkali resistance, low temperature resistance

9. Mold specifications: customized according to product, appearance size, specifications and customer requirements

10. Our services: provide quotations and mold design plans on the phone or online, conduct technical exchanges, send mold design drawings, and regularly feedback mold production progress..

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  • Detailed introduction

A 32-38mm preform mold is specially designed for mineral water bottles. The needle valve type balanced hot runner system is used to ensure that the gate is beautiful and free of wire drawing. The design of the preform ejection convex shaft reduces the maintenance time of the mold.

Technical parameters of PET preform mould
Mold nameA thirty-two 38mm preform mold
Number of cavities32 cavities
caliberCaliber 38mm
Preform weight55 graCH
Insert2316 stainless steel imported from Germany
template#50 steel
Molding cycleIt takes 45 seconds to produce with a general PET screw injection molding machine
Dual injection molding system and out-of-mold cooling system (PET Master line)It takes 24 seconds for the injection molding machine of the dual injection molding system with the 3-station external cooling system
Hot runner designBalanced hot runner with needle valve unit
Which injection molding machines are suitable forHusky, Netstal PET line, PET Master and other general PET injection molding machines

The weight of the PET preform is 55 grams, and the mold is matched with CH injection molding system. The production cycle of a general PET screw injection molding machine is 45 seconds. The production cycle of the injection molding machine with the dual injection molding system with the 3-station out-of-mold cooling system is 24 seconds

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Features

 

 

Needle valve preform mould

Each cavity of the preform mold structure is independent and self-locking, and the concentricity is ≤0.08MM. The mold cavity and core are made of German 2316 mirror-surface corrosion-resistant plastic molds. The hardness can reach HRC50 and the service life is long. The threaded mouth is manufactured according to international standards, and imported nitriding mold steel is selected, the hardness reaches HRC55, the service life is long, the hot runner design is advanced, the nozzle temperature is controlled at a single point, the heating temperature is uniform, and the quality of plastic products is improved. The length of the gate without shearing gate is 0.5mm, which ensures the automatic production of the mold and reduces the labor force. Mold life is above 4.5-5 million mold times

 

 

Double self-locking preform mould

Each cavity of the preform mold structure is independent and self-locking, and the concentricity is ≤0.08MM. The mold cavity and core are made of German 2316 mirror-surface corrosion-resistant plastic molds. The hardness can reach HRC50 and the service life is long. The threaded mouth is manufactured in accordance with international standards, and imported nitriding mold steel is selected, with a hardness of HRC55, long service life, advanced hot runner design, single-point temperature control of the nozzle, and uniform heating temperature, which improves the quality of plastic products. The length of the gate without shearing gate is 1.5mm, which ensures the automatic production of the mold and reduces the labor force. The mold life is more than 4 million mold times.

 

 

Ordinary long sprue preform mould

 

Each cavity of the preform mold structure is not independent and self-locking. The mold cavity and core are made of German 2316 mirror-surface corrosion-resistant plastic molds. The hardness can reach HRC50 and the service life is long. The threaded port is manufactured in accordance with international standards, and imported nitriding mold steel is selected, the hardness reaches HRC55, and the service life is long. The hot runner design is advanced, the heating temperature is uniform, and the quality of plastic products is improved. The length of the gate of the preform is 12mm and the gate needs to be cut manually, but the mold is fully automated, and the mold life is more than 2 million molds.

 

 

Ordinary short gate preform mould

 

Each cavity of the preform mold structure is not independent and self-locking. The mold cavity and core are made of German 2316 mirror-surface corrosion-resistant plastic molds. The hardness can reach HRC50 and the service life is long. The threaded port is manufactured in accordance with international standards, and imported nitriding mold steel is selected, the hardness reaches HRC55, and the service life is long. The hot runner design is advanced, the heating temperature is uniform, and the quality of plastic products is improved. The length of the preform gate is 1.5mm, but the mold is fully automated, which reduces the labor force of the workers. The mold life is more than 2 million mold times.


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Material of preform mold

(1) The main parts of the mould are made of imported DIN 2316 materials.

(2) The mold base material is made of P20 material or No. 50 steel plating treatment, which improves the corrosion resistance of the mold and prolongs the service life of the mold.

(3) The heat treatment of the parts is processed by an imported vacuum furnace, and the hardness of the parts is guaranteed to be HRC45°-52°.

Advanced processing equipment

The company has imported processing equipment from the United States and Japan, such as machining centers, CNC lathes, EDM, etc., to ensure the machining accuracy of the parts and make the parts have good interchangeability. The product eccentricity value is ≤0.10mm (the length of the preform is within 100), The weight error is less than 0.3g. The cycle time of the 30/25 preform with 24 cavities and 16g is 18 seconds per mold, and the life span can reach 3 million molds.

Advanced detection methods

In order to ensure the quality of Chuanghong's preform mold, the company is equipped with a projector to check the size of the preform, a hardness tester for mold parts, and professional inspections for the stress detector, eccentricity detector, and high-precision electronic scale after the injection molding of the preform. equipment. The use of the above measuring equipment can ensure that our PCO1810, PCO1881, 30/25 and other standard preform calibers can reach the ISB standard.

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