A: It is impossible to process PVC and PE in one machine setup because their composition are different. However, you can buy a machine for PVC application and buy other components to convert it into PE/PP application, including die heads and screws. For more machine setup suggestions, please contact our Sales Department.
A: P series machines are capable of high productivity, and they can be equipped with a single die head to eight die heads. As a result, they are suitable for producing containers with multiple layers. They also have an LCD touch screen and a line-up device, which enables smooth delivery of materials. For more details about our P series machines, please visit theproduct page.
A: H series machines have an LCD touch screen and a line-up device. This clear setup makes them easy to use and maintain. Moreover, the open and closed mold is controlled by three slide bars, enhancing the clamping force. For more technical details, please contact us.
A: Our machines can process various materials, such as PETG, PS, PA, TPR, PC, EVA, PBT, and so on. Please contact us for more details and information. We will promptly offer technical instructions.
A: Our machines are made to order. The standard production and delivery time is approximately 90 working days, depending on the machine’s size and specifications.
A: The machine comes with a 12-month (1-year) warranty, covering manufacturing defects not caused by misuse or damage from the buyer.
A: Yes, our machines are made to order and fully customizable. If you require a different die head configuration, please inform us during the discussion phase. The machine is designed to support interchangeable die head sets and blow pin units, allowing flexible conversion between single, double, or other die head options based on your production needs.
Blow molding machines are mainly divided into the following types:
- Fully automatic PP/PE blow molding machine: The entire process, from melting and feeding the raw plastic, heating, blow molding to finished product removal, is automated. Suitable for automated integrated production, it is highly efficient and has low labor costs.
- Semi-automatic PET blow molding machine: Requires manual feeding of the PET preform into the heating machine and manual removal after blow molding. Suitable for applications with small production volumes or frequent mold changes.
- Fully automatic PET blow molding machine: The entire process, from automatically loading the PET preform, heating, blow molding to finished product removal, is automated. Suitable for large-scale production, it is highly efficient and has low labor costs.
- Fully Automatic One-Stage Injection Molding (Stretch) Machine: From the initial melting and feeding of raw PE/PP/PS/PC plastic, heating, first injecting a preform and then continuing blow molding to the removal of the finished product, the entire process is automated, generating no excess waste. Suitable for integrated automated production, it offers high efficiency and low labor costs.
When choosing a blow molding machine, consider the following factors:
- Production Capacity: Select a semi-automatic or fully automatic machine based on your expected hourly or daily production capacity.
- Bottle Size & Shape: Confirm that the machine can handle the range of bottle sizes and complex shapes you require.
- Preform Specifications: Is the machine compatible with the preform specifications you use?
- Budget: Prices vary significantly depending on the type and function of the blow molding machine.
- Automation Level: Consider the need for manual operation.
- Energy Consumption: Energy-efficient machines can reduce long-term operating costs.
- After-sales Service & Technical Support: The quality of the supplier's service is also important.
Routine maintenance is crucial for ensuring stable operation and extending the lifespan of the blow molding machine:
- Regular Cleaning: Remove dust, plastic debris, and oil from inside the machine.
- Lubrication: Regularly lubricate moving parts and bearings.
- Check Air Supply & Water Lines: Ensure stable air pressure and unobstructed water supply without leaks.
- Inspect Heating Lamps: Regularly inspect and replace damaged heating lamps or heating elements.
- Examine Molds: Clean the molds and inspect for wear or damage.
- Fastener Check: Check that all screws and connections are tight.
- Electrical System Check: Ensure electrical connections are secure and wiring is free from aging.
Uneven Wall Thickness: Possible causes include uneven heating, improper stretcher position, incorrect pre-blowing pressure or time settings. Solutions include adjusting heating parameters, stretcher stroke, pre-blowing pressure, and time.
- Bottom Cracking or Puncturing: Possible causes include undercooling of the preform bottom, excessive stretcher length, or excessive pre-blowing pressure. Solutions include adjusting the bottom heating temperature, stretcher length, and reducing pre-blowing pressure.
- Neck or Mouth Deformation: Possible causes include overheating and loose clamping. Solutions include adjusting the heating temperature of the neck area and checking the clamping mechanism.
- Hazy or Poor Transparency: Possible causes include insufficient heating temperature and inadequate cooling. Solutions include increasing the heating temperature, increasing the cooling time, or decreasing the mold temperature.
- Low yield rate: This may be caused by a combination of problems, and each step, such as heating, air pressure, stretching, and mold, needs to be checked one by one.