PET Bottle Blow Molder

If you have any questions or inquiries about our Fully Automatic PET Bottle Blow Molder with 8 Cavities 11000BPH, we are here to help and advise.

fully automatic PET bottle blow molder witah 6 cavities 6000BPH

PET Bottle Blow Molding Machine


Up to 15,000 bottles per hour


Up to 8 cavities


Reliable performance ability

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Satisfaction Guaranteed

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2 Years Quality Warranty

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On Time Delivery Guaranteed

Overview of Two-Stage Blow Molding Machine

Steplead’s BMA series blow molding machines produce high-quality PET containers for a wide range of applications, sizes, and production demands. Our blow molders surpass previous standards in blowing capacity, cost-efficiency, and bottle quality. Steplead’s industrial blow molding equipment manufactures PET bottles and containers with precision engineering. Advanced temperature controls and adjustable blowing pressure ensure consistent, high-quality results. Trust Steplead for customizable stretch blow molding systems optimized for your PET bottle production needs. Contact our experts today to learn more about our high-performance blow molders for various industries.


UP TO 50%

Steplead certified parts with additional warranty

UP TO 25%

Less maintenance

UP TO 20%

Less energy consumption using lower engine speed and a larger hydraulic pump

inner structure of bottle blow molding machine

Save Cost

The stretch blow molding machine stretches the container in both the axial and hoop directions (biaxial stretching), greatly improving the container’s top load, clarity, drop impact tolerance, barrier abilities, and tensile strength. This process can reduce raw material costs by about 10-15% by decreasing container weight.

Wide Application

The stretch blow molding process for making PET bottles is widely used in the beverage industry for products such as juice, water, soda, and more. Since the 1970s, this blow molding technique has been applied to package chemical detergents and soda bottles.

bottle molding of bottle blow molding machine
heating oven of bottle blow molding machine (2)

High Efficiency

This blow molder can achieve high production output, reliability, and efficiency. It is suitable for non-carbonated water, carbonated soft drinks (CSD), and hotfill products, with a maximum of 8 cavities producing up to 11,000 containers per hour.


2,000 ~15,000 Bottles 500ml / Per Hour
  • Max Container Volume: 2L
  • Max Cavities: 8
  • Clamping Force: 320KN
  • Power: 120Kw
  • Dimension: 3,600 x 2,000 x 2,210MM


Integrated Beverage Packaging Solutions

Technology of bottled water filling equipment

Water Bottling Machine

Water bottling machines are specialized equipment designed to efficiently integrate bottle rinsing, filling, and capping processes. These machines are ideal for packaging various types of water, such as mineral, purified, and spring water. With automated bottle rinsing to ensure cleanliness, precise filling mechanisms to maintain product quality, and reliable capping systems for secure sealing, water bottling machines offer a comprehensive solution for high-speed production.

bottle labelling machine

Bottle Sleeve Shrink Labeling Machine

Bottle sleeve shrink labeling machines are pivotal in the packaging process, as they efficiently apply shrink sleeve labels to various containers. The process involves wrapping a pre-printed sleeve film around the bottle and applying heat, causing the label to shrink and conform tightly to the container's surface.

bottle bundle wrapping machine

Bottle Bundle Wrapping Machine

Bottle bundle wrapping machines play a vital role in packaging by securely wrapping groups of bottles using shrink film. These systems are reliable and cost-effective, creating secure multipacks that protect bottles during transportation and storage.

RO water treatment

RO Water Treatment System

Reverse osmosis (RO) water treatment systems are essential in the beverage and bottled water industries. This advanced filtration technology effectively removes impurities and contaminants from water, ensuring a supply of high-quality, purified water for various applications, including beverage production and bottled liquid filling.


Here is a list of all the types of technical questions concerning bottle blowing molding machine that you can find.

What Safety Precautions Are Needed For Blow Molding Machine Operation?

  • Safety Precautions:
    • Operators must wear safety helmets, slip-proof shoes, and working clothes during installation, inspection, and maintenance.
    • Ensure the machine is installed in a dry, bright, and clean location. The ground should be solid and slip-proof.
    • Never place tools or other items on the machine or moving parts.
    • Do not climb onto the machine while it is running, and do not touch moving parts.
    • Turn off power and gas sources before inspection and maintenance, and ensure air pressure is at atmospheric levels.
  • Safety Guards and Doors:
    • Limit switches on safety doors stop the machine if the door is opened. Check these switches before operation.
    • Do not dismantle safety doors or covers unless necessary for maintenance. Reinstall them properly afterward.
    • Emergency stop buttons are on the operation panel and the back of the machine. These stop the machine immediately when pressed.
    • Overpressure protection includes safety valves on high and low-pressure air collectors. They open automatically if pressure is too high.
    • Ground the machine properly before use, following local standards.

What Are Other Precautions Needed For Blow Molding Machine Operation?

  • Emergency Stop:
    • There are two emergency stop buttons. Gas supply stops and pistons return when pressed.
    • A safety lever prevents bottles or preforms from advancing if obstructed, stopping the machine until the obstruction is removed.
  • Adjustment of Position and Speed:
    • Do not change positions or adjust speed valves. These settings are optimized before the machine leaves the factory.
  • Inspections for Automatic Operation:
    • Confirm operator safety and check the surrounding area.
    • Ensure all safety devices function normally and limit switches are in position.
    • Check air pressure for operation and blowing.
    • Verify the adjustment of speed settings and cooling water circulation.
  • Safety During Bottle Blowing:
    • Never open guarding gates or touch moving parts during bottle blowing.
    • Monitor the machine’s working status. Stop immediately if abnormal situations or noises occur. Troubleshoot before resuming operation.

By following these guidelines, you can ensure the safe and efficient operation of your blow molding machine. For more detailed information and specific queries, please refer to the operation manual or contact our support team.

  • Power Safety:

    • Always switch off the power and hang a warning sign “Repairing, Switch on Prohibited” at the power switches before repairing the machine.
    • Use an electroscope to ensure the power is completely switched off.
  • Pneumatic Units:

    • Replace pneumatic units such as gas pipes, valves, and connectors only after reducing air pressure to atmospheric levels and receiving approval from professional engineers.
  • Electrical Components:

    • Ensure the capacity matches regulations when replacing fuses or other electrical units. Obtain approval from professional engineers or technicians.
  • Electrical Safety:

    • Never touch any electrical devices with wet hands.
  • Mold Repair:

    • When repairing the mold on the machine, insert a cushion (rectangle wood block of 15×20 cm, with a length equal to the maximum mold opening) into the opened mold clamp device.
  • Lubrication:

    • Lubricate the machine only after it has stopped.
  • Tool Use:

    • Use proper tools for maintenance and repair. Apply the correct torque when tightening bolts and nuts.
  • Post-Maintenance Check:

    • Carefully inspect the repaired area to ensure no tools are left in the machine.

Precautions of Gas Circuit System of Blow Molding Machine

Precautions of Gas Circuit System of Blow Molding Machine

Important Note: High-pressure air has a high density and any leakage can lead to serious consequences.

  1. Safety Valve Position:

    • Do not change the position of the safety valve on the air collector.
  2. Impact Prohibition:

    • Avoid impacting the compressed air collector.
  3. Pressure Relief:

    • Slightly open the gas outlet valve to discharge gas slowly when relieving pressure.
  4. Gas Source Shutdown:

    • Turn off the gas source and open the outlet valve, ensuring the pressure meter reads zero before removing parts from the gas circuit.
  5. Long-Term Shutdown:

    • Discharge all gas thoroughly if the machine will not be used for a long period.
  6. Pneumatic Unit Replacement:

    • Check replacements under low pressure to ensure safety, then gradually increase air pressure.
  7. Regular Gas Circuit Checks:

    • Daily Checks:
      • Verify the pressure values on the air collector’s pressure meter.
      • Monitor the gas circuit system (air collector, pipes, valves, and air cylinder) for leaks.
      • Ensure hoses are not bent or damaged and that all parts are securely tightened.
    • Weekly Checks:
      • Drain accumulated water from high and low-pressure air collectors and filters.
      • Check for loose magnetic coils and bolts.
      • Clean the air muffler.
    • Six-Monthly Checks:
      • Verify the accuracy of all pressure meters on the air collector and gas circuit.

Preparation Before Installation for PET Bottle Blow Molding Machine

  • Location and Layout:

    • Determine the machine’s location considering the dimensions of the charging device (Refer to Figure 1: Machine Layout). Ensure the surrounding area is clean for operation, repair, and maintenance (Refer to Figure 2: Machine External View).
  • Foundation:

    • The ground should be level, smooth, and have at least 150mm thick concrete to withstand the machine’s weight and vibration over time.
  • Utilities Setup:

    • Complete the layout of the power supply, gas, and water systems based on safety and practicality before installation. Ensure the cable specifications meet the machine’s total power requirements. Cables should be routed through electric pipes and laid underground.

Hoisting and Transportation of the PET Bottle Blow Molding Machine

Hoisting and Transportation of the PET Bottle Blow Molding Machine

Hoisting and Transportation Guidelines

Refer to the Main Technical Parameters and Specifications for the weight of the machine. Due to the machine’s heavy weight, professional personnel should be enlisted for loading and unloading. Follow these precautions to ensure safe hoisting and transportation:

  1. Equipment Strength:

    • Ensure the forklift, hoisting machine, crane, and hanging ropes have sufficient strength to safely handle the machine’s weight.
  2. Protection Against Damage:

    • Use soft fabric or wood blocks between the steel wire rope and the machine to prevent damage to the machine’s surface during loading and unloading.
  3. Balanced Hoisting:

    • Verify that the machine is in a balanced position before hoisting to prevent tipping or instability.

Additional Tips for Safe Handling

  • Professional Assistance: Always hire trained professionals to manage the hoisting and transportation process to ensure safety and avoid equipment damage.
  • Pre-Inspection: Conduct a thorough inspection of all lifting equipment and accessories to ensure they are in good working condition and appropriate for the task.
  • Clear Communication: Maintain clear communication among all team members involved in the loading and unloading process to coordinate movements and ensure smooth operation.
  • Environmental Considerations: Be mindful of the surroundings and ensure the loading/unloading area is clear of obstacles and hazards.

Benefits of Professional Handling

  • Safety Assurance: Using professional services minimizes the risk of accidents and injuries during the hoisting and transportation process.
  • Equipment Integrity: Proper handling ensures the machine remains in optimal condition, preventing costly repairs and downtime.
  • Efficiency: Experienced professionals can complete the loading and unloading process more quickly and efficiently, reducing operational disruptions.

For more detailed information and specific queries, please refer to the operation manual or contact our support team.

Steps of Installation for PET Bottle Blow Molding Machine

    1. First of all, install the anti-vibration bolt. Insert the bolt for level adjustment into the hole on the machine, then put the washer on the bolt and tighten the nut.
    2. Lower the machine on the anti-vibration bolt, turn the bolt for level adjustment until it touches the accessory.
    3. After equipping the anti-vibration base into all foundation bolts. Put a level gauge on the top of mold matching device to check the levelness of the machine. Adjust the bolt until the machine is in level position.
    4. Tighten the nut.

Steps of Installation for PET Bottle Blow Molding Machine

Power Connection of PET Bottle Blow Molding Machine

This machine uses three-phase power inlet wire. Its power is AC 220V/60Hz

(1) Fuses of proper capacity should be used in three-phase power.

(2) Connect the power to the large terminal board in the electric cabinet. The cable should accord with insulation standard and should have enough capacity.

(3) If the motor turns in a wrong direction, then switch off the power, change the position of any two-phase wire to correct the motor direction. For details, please refer to Chapter Four Commissioning and Operation.

(4) The machine should be grounded. The resistance should be lower than 4 Ω. Its function is to protect the security of people on spot due to electric leakage caused by overheat or aging of wire.

Freezing water in Freezing Machine

Cool the base of mold, mold chamber for bottle blowing and channel of cooling water in heating cabinet with 10°C~12°C degree freezing water of 0.3~0.5Mpa. The freezing water needed is about 40L/min. Additives of anti-corruption and deoxidize shall be added to the freezing water to improver water quality. The water pipe should be washed clean before installation.

Cooling Water in Water Tower

Cooling water in water tower is supplied directly to the freezing machine. The flow is about 100L/min. The water of cooling tower shall be intenerated.

Connection of Gas Circuit of PET Bottle Blow Molding Machine

(1) The machine uses compressed air. Pipes or hoses connected with the machine should bear regulated pressure.
(2) The machine uses two gas sources of pressure: 3.5Mpa and 0.8Mpa. Professional engineers or technicians are required to guide the installation.
a. Air pressure for operation: Gas inlet 0.8Mpa, Gas outlet 0.6~0.8Mpa
(Air cylinder for mold base, mold clamp, Stretching, seal, perform feed and bottle picker)
b. Air pressure for bottle blowing: This is the gas source provided for blowing molding. It must be clean and dry. Its pressure for air supply is 3.5Mpa.
c. See Figure 6 for the connection position.

Connection of Gas Circuit of PET Bottle Blow Molding Machine

(1) Accessories without painting have already been coated with anti-rust oil, which should be washed with gasoline or diesel oil and cleaned with soft fabric.
(2) Clean the dust and dirt on the chrome-plated lever, leader and piston rod carefully to avoid damages to sliding sleeve and seal ring, etc.
(3) Lubricate the surface of all movement parts after cleaning.

(1) Oiling point with oil gun is recommended to use No.00 lithium based grease lubricant oil.
(2) Chain, chain wheel and rolling bearing can use universal lithium based grease.
(3) All easily-wear bearing or sleeves should be coated with lubricant oil or grease.

(1) Check whether fixed screws on the machine and electric devices are loose.
(2) Take a trial run of the freezing machine to confirm no leakage in connection pipes and hoses.
(3) Take a trial run of the air compressor to confirm no leakage in connection pipes and hoses.
(4) Check again to confirm that the voltage and frequency of the power supply can meet the requirement of operation and the wire connection is correct.

Mold clamping ForceKN3 0 0
Mold clamping strokemm1 4 0
Mold thicknessmm2 0 0
Stretching strokemm3 3 0
Bottom mold strokemm6 0
Cavity pitchmm1 1 5
Number of cavities 8
Max. capacity 15000BPH x 500ml
Exterior diameter of preform neck*mm1 8 ~ 3 8
Max. diameter of bottlemm1 0 5
Max. height of bottlemm3 3 5
Max. heating PowerKW6 0
Total installed PowerKW6 3
Operation pressureMPa0.7
Blowing pressureMPa3.5
Temperature of chilled waterC1 0 ~ 1 2
Flow of chilled waterL/min3 0
Pressure of chilled waterMPa0.3 ~ 0.5
Flow of cooling waterL/min1 0 0
Pressure of cooling waterMPa0.2 ~ 0.3
Dimension (L x W x H)m3.12×2.27×2.03

What Are Functions Of Panel Buttons Of Bottle Blow Molding Machine

F1 Start(with LED)
F2 Stop(with LED)
F3 Power
F4 Manual/Auto Mode SelectionSwitch
F5 Selection Switch for Preform Supply
F6  SelectionSwitch for Heating
F7  EmergencyStop Switch(Please refer to Operation Instruction for Reset)
F8 Reset(with LED)
F9 DisplayScreen  


What Are The Positions Of Limit Switch, Magnetic Switch And Photo Switch In The PET Bottle Blow Molding Machine

What Are The Positions Of Limit Switch, Magnetic Switch And Photo Switch In The PET Bottle Blow Molding Machine1

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