Demark Full-Automatic Carbonated Beverage Pet Bottle Blow Molding Machine



Blow molding machine is a highly efficient and advanced machine that is widely used for producing bottles, jars, and other plastic containers. This machine is designed to create hollow plastic parts by melting plastic resin and blowing it into a mold to create the desired shape. It is an ideal solution for large-scale production of plastic products with high precision and quality.
Our blow molding machine is equipped with advanced technology that ensures consistent and reliable production processes. It has a touch screen control panel that allows easy operation and monitoring of the machine. The machine also features a heating system that ensures even and consistent heating of plastic resin for consistent results.
Full-auotomatic roatray blow molding machine consists of main machine, oven, elevator, electrical control system.
Put performs into hopper → Elevator send performs to arraying system → Array the preforms → Perform loading → Preform heating → Robot put the heated performs into moulds Lock the moulds and start blowing → Finish blowing→ Robot takeout the bottles → Bottle outlet
The electric control system can make control of automation,carrying out strict control in the process of elevating, arraying, loading, heating and blowing. Human interface achieves central control.
Working principle of blow molding machine:
Main wheel of equipment rotates in high speed. The encoder at the top of equipment and sensors installed on the main wheel test the angle of rotation and give computer feedback. Then in accordance with the operator of the procedures it set (angle) issued directives to executing agency(electromagnetic valve). The implementation process of blowing on a specific time, resulting to complete the process of a two step blowing and produce qualified products in rotating equipment.
ITEM | UNIT | DMK - R12 |
Productivity | bottle/h | 28000 |
Volume | L | 0.2-2.5 |
Material | PET | |
Max .diameter | mm | 116 |
Max . height of preform | mm | 145 |
Max . height of bottle | mm | 320 |
Power | 380V50Hz | |
Installation power | KW | 5.5 |
Oven installation power | KW | 216 |
Elevator power | KW | 1.5 |
Actual total power | KW | 70/103 |
Cavity | 12 | |
Dimension of main machine | mm | 4.02 ×3.0 ×3.42 |
Dimension of oven | mm | 4.4 × 1.82 ×2.4 |
Weight | T | 15 |


Preform will be feeded and listed automatically.The device can adjust the preform quantity according to productivity, start and stop feeding automatically. To maintain uninterrupted feeding and not aggregate.It can adjust its output speed according to different preform type, so that preform feeding quantity coincide with production.


There are specially designed ventilation cooling devices and protective plate cooling water cooling in heating machine.Protecting the protection board and external when the temperature is too high. Thermal wind is controlled by frequency adjustable fan. Make sure the preform neck will not distorted by heating and increase the penetration, extend the life of infrared lamp at the same time.
Specially designed mould plate system make ensure that the replacement of the mould can be do quickly, accurately and good interoperability. Mould plate has pressure balance device. When blowing the bottle, it can make minimum of spew line, ensure the quality and performance of bottle. Special designed seal make low pressure when preform mouth connected with sealing mouth, and will not damage preform mouth.


Unlike the old mechanical gripper, the new one does not have a long spring. The use of double groove blank bottle pick-up and delivery cams, optimised robot structure, increased process angle, good synchronisation and coordination, good repeatability of movements, more flexible bottle blowing and lower losses.
1. Air compressor without oil: supply needed working pressure in the normal working(0.8Mpa) and high pressure for completing high pressure blowing.
2. Water chiller: The cooling system consist of cooling tower supplies cooling effect for air compressor without oil, blowing machine, hot water chiller and temperature control(oil).If the bottle is for water or carbonated, the cooling tower supply cooling water for buttom bottle mould and bottle mould; It needs hot water machine and temperature control(oil) if it is hot-filling bottle.


3. Hot water machine: the function is supplying steady hot water for buttom of mould, make the buttom of mould have steady temperature, ensure the blowing temperature.
4. Temperature control: the function is mainly provide a stable temperature for bottle body mould, make crystal of bottle material, meet the hot-filling requirements for bottle distortion. Heating media used in temperature control is industrial heat conductivity oil.


5. Durability: Blow molding machine is constructed using high-quality materials that make it durable and long-lasting. It has a sturdy frame that is designed to handle high pressures and temperatures. The machine also features safety measures that ensure the safety of operators during the production process.
6. Variability:It can produce a wide range of customized products, using a variety of plastic resins. This feature ensures that our machine can meet the diverse needs of our customers, whether they require high-quality products with unique shapes or designs.


In summary, our blow molding machine is an excellent investment for businesses looking to produce high-quality plastic products cost-effectively. The machine's advanced technology, durability, and versatility make it a top choice for large-scale production of plastic containers and bottles.