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A Leading PET Stretch Blow Molding Machine Manufacturer and Supplier

Whether semi or fully automatic, stretch blow moulding machines are moulding equipment that manufactures bottles, jars, and containers. The machine
uses polyethylene terephthalate (PET) as the raw material. Semi-automatic pet bottle stretch blow moulding machine is for small-scale PET bottle production.
On the other hand, the fully automatic pet bottle stretch blow moulding machines are for medium and high-speed production. PET blow molding machines
make plastic containers etc.widely used in the industries of beverage, edible oil, wine.  They can also package beer, liquor, food, cosmetics,
household products, personal care products, chemical, pharmaceutical, biomedical and so on. PET blow molding machines are applicable
in a number of industries, especially those dealing with consumable goods. Due to their nature and recyclability, most industry
uses them for packaging. Here are the major industries that uses PET for packaging:

Beverage bottles and cans making

Beverage bottles and cans making

PET blow moulding machine produces all kind of pet bottles and jars for beverage packaging. Good examples are water bottles, carbonated soft drink bottles, and cans, hot filling juice bottles, ice tea, energy drink, alcoholic and non-alcoholic drinks.
Food cans and jars making

Food cans and jars making

PET cans and jars produced by PET bottle blow moulding machine are excellent in packaging liquid, powdered products, and sold products. The perfect cases are biscuits, candy, cashew, seed, honey, edible oil, pistachio, nuts, soy sauce, and candy.
Personal care, household, and cosmetics

Personal care, household, and cosmetics

PET bottles produced by PET stretch blow moulding machine are great for packaging personal care, household and cosmetics products. Good examples include the hand wash, mouth fresh, liquid detergents or soap, shampoo, lotion, bleach and so on.
Pharmaceutical bottles

Pharmaceutical bottles

Most of the packaging done in the pharmaceutical products use PET bottles. That is because they are cheap, portable and recyclable. The PET bottles can package oral liquid, cough syrup, liquid spray, eye drop, tablets, capsule and so on.

The application of the latest preeminent expertise when designing and making our machines has outrightly made us to be the ideal solution for you when you want to acquire the perfect PET bottle blowing machine and service. Our PET bottle making machines are trusted globally in light of first-class results that they exhibit in terms of quality, quantity, and timeframe.

We manufacture a wide variety of semi and fully automatic pet bottle blowing machine for small, medium and high production. For semi-automatic PET bottle blowing machine, we have 2 cavity, 3 cavity and 4 cavity with an output capacity of 900, 1200 and 1600 bottles per hour and 20-liter water jar making machine with an output of 75 jars per hour. However, for fully automatic pet bottle blowing machine, we have 3 cavity, 4 cavity, 6 cavity and 8 cavity which can produce bottles 2500, 4300, 7200 and 9000 bottles per hour.

What is PET Stretch Blow Molding Machine?

Stretch blow molding machine is a machine that manufactures bottles, jars and containers. The machine uses polyethylene terephthalate as raw material. We also call it PET bottle stretch blow moulding machine or PET bottle blowing machine. Comprehensively, the stretch blow molding machine works by stretching, blowing and molding preforms with an objective of getting a bottle, jar or container. For better understanding, we need to become acquainted with some of the keywords in the machine’s name.

PET– This is an abbreviation for polyethylene terephthalate which is the raw material for making the bottles, jars, and containers.

Stretch – Cylindrical stretch rod is introduced to heated preform and moves downwards to stretch the preforms longitudinally. However, setting the distance between the stretch rod and blow mold bottom is crucial.

Blow – During the step of blow or blowing, two-level pressure of air is fed into the blow mold, low pressure air for preblow blows the preform off stretch rod. The high-pressure air for the final blow to blow the preform circumferentially to form the bottle.

Molding – Molding or moulding means a hollow form or matrix for giving a particular shape to something in molten or plastic state. That means the formation of the bottle occurs in the mold or mould.

Therefore the PET stretch blow molding machine mostly centers on the three: stretching, blowing and molding. The design offers the best parts and features to effectively accomplish the three errands.

How PET Stretch Blow Molding Machine Works

As expressed before, Polyethylene terephthalate (PET) is the crude raw material that bow moulding machine utilizes. It is the raw material that makes preforms which are then molded to make the bottles, jars and containers by this remarkable PET bottle making machine. This how our blow moulding machines Work:

Semi-Automatic PET blow molding machines

The bottle making process by semi-automatic PET stretch blow molding machine starts from loading preforms into preform holders in the oven manually. The heating of the preforms happens inside the heating tunnel by infrared heating lamps. In the tunnel, the temperature controller controls each heating zone for adequate heating. Also, one blower (controlled by a detector and mounted in the machine) controls the temperature in the heating tunnel. That maintains the temperature within the set limits. Preforms on the preform holder rotate at a controlled speed for heating to be even, move one trip inside the heating tunnel driven by variable speed motor.

Heated preforms loads into the blow molder manually, operator press the two “start” switches. The mold closes and the stretching and blowing starts programmed in the microprocessor. After getting the shape bottles or jars in the blowing cycle, the mould opens automatically. The formed bottles are removed by hand or ejected automatically. But that depends on the PET stretch blow moulding machine you choose.

Fully automatic PET blow molding machines

The bottle manufacturing process by fully automatic PET stretch blow molding machine starts from loading preforms into the hopper. An elevator moves the preforms up to a gravity-based sorter which aligns and suspended onto a chute. Then, the preforms are oriented and loaded onto the preform holders for heating in the heating tunnel. In the tunnel, the temperature controller controls each heating zone. Also, a blower detected by a sensor monitors the temperature in the heating tunnel controls the temperature in the tunnel to avoid over or less. The preforms holder rotates so that the preforms can heat evenly, and made a trip in the heating tunnel driven a variable speed gear motor.

After heating preforms to the required temperature, an automated Robert arm directs them to blow moulder. The mould closes and stretching, and blowing process starts as programmed in the PLC. After bottles are formed, the ready bottles are ejected automatically on the takeaway conveyor or directed other machines which can be connected with PET blowing machine.