PET Blowing Compressor2023-06-28T17:59:59+08:00
  • high pressure screw compressor
  • High pressure pet compressor

PET Air Compressor

30 ~40 bar Screw Air Compressor for PET Blowing

Not PISTON

No more high noise and vibration

SCREW TYPE

Patented Two-stage single-screw compression

Not BOOSTER

No more high maintenance costs

Contact us

More than 30 years experience

30~40bar high pressure two stage oil free screw type air compressor
30-40bar cooler
screw air compressor for PET INDUSTRY

Why Should We Choose Screw Type  Compressor

 

30~40bar Air Compressor:

Screw VS Piston

screw air compressor for PET INDUSTRY
PET AIR COMPRESSOR-PISTON
Comparison Oil free Screw Air Compressor Oil free Piston Air Compressor  
Air quality 100% Oil-free Air cylinder Oil-free, Crankcase has oil 
Compression Method 2 Stage Screw 3 Stage Piston
Lubricating Medium Pure Water None
Temperature Low: < 55℃, No need for cooling High: 125~200℃, After cooling about 60℃
Cooling Method Air Cooled or Water Cooled (Only one cooler for lubricating water) Water Cooled (Two interstage cooler and one aftercooler for compressed air)
Rotate Speed 3000 r/min Ideal Speed 600~900 r/min Low Speed
Vibration and Noise Balance and Simple structure, low vibration, and less noise The pistons rise and fall or move back and forth causing too much vibration and Noise
Costs – Purchasing More Less
Costs – Foundation No costs Require foundation and grouting due to high unbalanced forces & high vibration.
Costs – Maintenance Only Air filter elements and Water filter elements High wear & tear of moving parts like piston rings, valves, etc.
Costs – Energy (e.g. 40bar 10m3/min) Motor Power: 112kW (1st stage 75kW+2nd stage 37kW) Motor Power: 132kW
Capacity Loss There is no loss / very minor loss in Capacity over a period. There is De-ration in Capacity due to wear and tear in cylinder crank case, piston rings, pistons and valves.

Screw Air Compressor Parameters

High-pressure 30~40bar PET Screw Air Compressor

3040bar-series
Model Pressure Capacity Power Noise Dimension(mm) Weight
OGWBE60F(S) 30 bar 6 m³/min 37+22kW 70dB 3000×1400×1700 2900×1400×1700 2000kg
OGWBE90F(S) 30 bar 10m³/min 55+37kW 73dB 3600×1750×2000 3500×1500×1730 3000kg 2300kg
OGWBE120F(S) 30 bar 13m³/min 75+45kW 75dB 4000×1750×2000 3500×1500×1730 3500kg 2950kg
OGWBE155S 30 bar 16m³/min 90+65kW 77dB 4000×1700×1800 3500kg
OGWBE185S 30 bar 20m³/min 110+75kW 78dB 4000×1700×1800 4000kg

 

Model Pressure Capacity Power Noise Dimension(mm) Weight
OGWBE75F(S) 40 bar 6 m³/min 45+30kW 70dB 3000×1400×1700 2900×1400×1700 2100kg
OGWBE120F(S) 40 bar 10m³/min 75+45kW 73dB 4000×1750×2000 3500×1500×1730 3000kg 2400kg
OGWBE145S 40 bar 13m³/min 90+55kW 75dB 3500×1500×1730 3000kg
OGWBE185S 40 bar 16m³/min 110+75kW 77dB 4000×1700×1800 3500kg
OGWBE220S 40 bar 20m³/min 132+90kW 78dB 4000×1700×1800 4000kg

 

Send Us An Email

    Contact Us

    • bjbeneair@gmail.com

    • +86 188 1029 5419

    • +86 188 1029 5419

    • +86-10-68869432

    • 100043, Beijing, China

    Typical Applications for PET Air Compressor

     

    As we know, PET(polyethylene terephthalate) is a safe and recyclable packaging material. Compared with aluminum cans and glass bottles, PET containers are more environmentally friendly and cost-effective.

    Air compressors are the main utility for plastic processing plants, A large amount of compressed air is needed to blow PET or PP preforms into bottles.

    pet-preforms

    Applications

    Details

    PET Bottle blowing High-pressure compressed air is used for blowing bottles. 

    The pressure depends on the container’s design, wall thickness, blow speed, and so on. The bottles with thick walls, sharp edges, and special shapes need higher pressure. Generally, the stretch blow molding requires about 10~25bar for pre-blowing and about 40bar for the bottle-blowing process. The trend for PET bottle-blowing machines is to reduce the blow pressure as much as possible for energy saving.

    Cleaning The bottles should be cleaned with compressed air before filling the water, beverage, cooking oil and so on.

    If the air is contaminated, it will influence the flavor and odor, causing health problems.

    Filling Oil-free compressed air should be used in filling machines for liquid preparations.
    Packing and labeling Low-pressure compressed air is also used for automated lines for packaging, labeling, and more.
    Instrumentation For pneumatic conveying during the manufacturing process.

    For the control valves, sorting, polishing, and more.

    Development for PET Air Compressor

    High-Pressure Compressor solutions for PET bottle-blowing machines are as follows:

    Comparison Small Oil-lubricated Piston Oil-free Piston Booster Oil-free SCREW
    Photo
    Lubricate method Oil-lubricated Oil-free (Class 1) Oil-free (Class 1) 100% Oil-free (Class 0)
    Cooling method Air-cooled Water-cooled Water-cooled Air-cooled or Water-cooled
    Compression stages Two-stage/Three-stage piston Three-stage piston 1st screw 2nd piston Two-stage SCREW
    Space for 40bar 6m3/min 3800*1000*1700mm 2800kg 3100*1750*2150mm 3400kg 2790*1500*1470mm 3200kg 2900*1400*1700mm 2100kg
    Comparison Piston type Screw type
    Working principle For piston compressors, the air is compressed in different cylinders and cooled. For example, the atmospheric air is compressed to 4~5bar in the first cylinder, then cooled before pushing to the second cylinder, achieving 15~17bar then, the air is cooled again and reaches 40bar finally. For screw type, the air is compressed to 7~8bar at the first screw compression stage, there is no need to cool and the air goes into the second stage screw air end, finally achieving 30~40bar air discharge directly without cooling. 
    Efficiency Low-speed 600-1500r/min, more friction pairs, lower efficiency
    High temperature:Energy lost due to hot air discharge
    Shorter lifetime of the component
    Rotation speed 3000r/min, zero loads
    About 50℃, no heat waste
    Ideal isothermal compression
    Maintenance Complex structure needs special technical support for installation
    High maintenance costs if routine checks are not done at 4000~6000 hours
    Simple and balanced structure
    50000h lifetime, Less than $500/year

     

    Send Us An Email

      Contact Us

      • bjbeneair@gmail.com

      • +86 188 1029 5419

      • +86 188 1029 5419

      • +86-10-68869432

      • 100043, Beijing, China

      Quality Requirements for PET Air Compressor

      Generally, the compressed air should be purified of contaminants before use. General contaminants are solid particulates,  water vapor, and moisture, oil vapors. Which are in the atmospheric air, the lubricating oil for oil-injected type air compressors, the pipes, storage air tank, and distribution.

      When the PET compressed air has a direct connection with drinking water or beverage, cooking oil, we must ensure purity and cleanliness to prevent contamination. For the details what we should do are as follows:

      Remove the moisture

      As we know, moisture is good for microorganisms and fungus growth. If there is moisture inside the pipes of the compressed air, it is easy to be blown to the products or the packaging or containers. So we need to use dryers to ensure the required dew point. Generally, for the direct contact compressed air, the dew point should be -40℃ and use a desiccant air dryer, and for low-risk non-contact compressed air, the dew point can be 3℃ and use a refrigeration air dryer.

      Remove the oil

      The oil exists in the atmospheric air, so even you choose a 100% oil-free type air compressor, there is still oil vapor in the compressed air, so the filters should be used.

      Generally, for direct contact compressed air, use an oil-free type air compressor is a must. Ensures Class 0 100% oil-free compressed air with high purity, eliminates the health risk of rejection risk associated with oil contamination. For low-risk non-contact compressed air, we can use an oil-lubricated type air compressor which is more economical, but it’s better to use filters to ensure the oil content 0.003ppm.

      Remove the particles

      The atmospheric air includes solid particulates or dust that may cause contamination if contact with the products. Other contaminants may come from internal mechanisms of the air compressor system. We also need to use filters to ensure the particle content is no more than 0.01μm.

      Common Equipment for the Pharmaceutical/Medical Applications

      • For the direct contact compressed air for production line, we suggest using 100% Oil-free type air compressor with the desiccant air dryer and filters, the materials should be used is food-grade stainless steel.
      • For the non-contact low-risk compressed air for production line, if with a limited budget, the oil-lubricated type air compressor with refrigeration air dryer and filters can be chosen, but for long term consideration, an oil-free type air compressor can not only produce high-quality oil-free and clean air but also costs lower for maintenance and energy.
      Air tank

      Air Tank

      Air dryer

      Air Dryer

      Air filters

      Air Filters

      Related Products

      small food and medical oil free screw air compressor

      2~40bar Oil free Screw air compressor

      3hp oil free scroll air compressor

      8~12bar Oil-free Scroll air compressor

      BENEAIR COMPRESSOR

      2~16bar oil lubricated screw air compressor

      Send Us An Email

        Contact Us

        • bjbeneair@gmail.com

        • +86 188 1029 5419

        • +86 188 1029 5419

        • +86-10-68869432

        • 100043, Beijing, China

        Class 0 Oil-free food-grade air compressor

        MORE DETAILS
        TUV certificate for air compressor

        100% OIL-FREE

        More than 20 years experiences in Water-lubricated Oil-free technology

        Germany Rhineland TUV Class 0 Oil-free Certification

        single screw air host for air compressor

        RELIABLE

        More than 30 years Single Screw Technology

        Most balance and reliable structure

        Low temperature(< 55℃) reduces the stress on components

        filters for air compressor

        LOWER MAINTENANCE

        Without Oil Air Separation Unit

        Consumable parts are only air and water filter elements

        $100~$300/year

        air compressor system

        ENERGY SAVING>30%

        Ideal isothermal compression and no heat waste(<55℃)

        Most Advanced VSD and Two-stage compression technology

        balance structure for single screw air compressor

        SUPER QUIET

        Super dynamic balanced system

        The motor and screw are directly connected

        Sound absorbing materials are also used in the shell

        Oil-lubricated Compressed air

        two-stage screw air end for air compressor

        AIR END

        Optimal profile

        Double stage energy saving more than 10% than single stage.

        PM motor for air compressor

        PM MOTOR

        Direct Drive

        Class 1 PM motor, Power factor: >95%, Oil-cooled type can be customized

        control panel for air compressor

        VSD CONTROL

        Automatic operation

        Dynamic display all operation parameters, prevent accidents by  the alarm.

        pipeline system design for air compressor

        EASY-MAINTENANCE

        Patent technologies

        Filters can be easy replaced in half an hour. Oil can be completely replaced.

        pipeline system design for air compressor

        OIL SYSTEM

        Minimum pressure drop

        Patent oil storage device can guarantee the oil supply of the air end after a long shutdown.

        How to choose the right air compressor?

        We replaced 21 piston type compressors with one 40bar 10cubic Screw type compressor.
        No more noise, no more spare parts and high maintenance fee.

        Production Manager, PET Bottle Blowing industry
        We began to use their oil free type products since 1998, the products are very reliable.

        Their Water-lubricated Screw Air Compressor can ensure the 100% oil free and clean compressed air for our processing, and ensure the high quality of our products.

        The oil free type screw air compressor energy saving 38.6% compared with our used air compressor, and saving  25.8% compared with the new oil lubricated type screw air compressors.

        “Class 0 oil-free air compressor guarantee the best quality of our end products”
        “Electrical costs and maintenance fee is significantly reduced.”

        Mr.Wang, “Lenovo” screen production line, Electronic Industry
        JOIN US!

        OUR CUSTOMERS

        Solutions

        FIND OUT MORE

        Product FAQ

        Go to Top