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Construction Simple Roots Rotary Blower With Three Lobe 980 ~ 1310rpm

Categories Roots Rotary Blower
Brand Name: DICHENG
Model Number: DSR300A
Certification: ISO9001, CE, SGS
Place of Origin: SHANDONG
MOQ: 1 set
Price: Negotiation
Supply Ability: 200 sets per month.
Delivery Time: Generally, it will take 5-20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Packaging Details: Immunized Fumigation-Free Wood Case, Iron Pallet.
Name: Air Supply Roots Type Air Blower
Air Capacity: 101.9 - 157.4 M3/Min
Pressure: 9.8 - 58.8 Kpa
Application: for Aeration
Driving Method: Belt or Coupling Drive
Net Weight: 2118kg
Medium: Air, Neutral Gases
Conveying: Oil-Free
Noise: Under 80dB
Type: Postive Displacement
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    Construction Simple Roots Rotary Blower With Three Lobe 980 ~ 1310rpm

    DSR300A 101.9-157.4m3/min Air Supply Roots Type Air Blower

    Product Introduce

    DICHENG DSR300A Air Supply Roots Type Air Blower adopts the advanced technology of Japan,

    Type of technologyPositive displacement blowers
    DesignPositive pressure
    Air capacity101.9 to 157.4 m³/min
    Discharge Pressure9.8 to 58.8Kpa
    MediumAir, Neutral gases
    Rotating Speed980 ~ 1310rpm
    Discharge Diameter300mm(or customized)

    The main characteristic of our Air Supply Roots Type Air Blower is small volume, light weight, flow strong, noise small, steadily reliable operation. This Water Treatment Three Lobe Roots Blower is mainly applied to such trades as water treatment, air transport, mine, vacuum packaging, aquaculture and etc. Our products export to Southeast Asia, Europe, North and South America and etc.

    Product Feature

    1. Air flow and pressure can be customized
    2. Stable air flow and less pressure variation
    3. Construction simple and easy maintenance
    4. Bearing are all lubricated by oil moist
    5. Long service life

    Air Supply Roots Type Air Blower Structure Diagram

    No.NameMaterialQ' tyNo.NameMaterialQ' ty
    1ShellHT200114Z sealing ringNitrile rubber1
    3Drive shaft45Cr116Gear lock washerQ2352
    4Driven shaft45Cr117Gear lock nutSS4002
    5Drive side sidingHT200118GearboxHT2001
    6Gear side sidingHT200119Sleeve451
    7Drive bearingNSK220End coverQ2352
    8Driven bearingNSK221Pin451
    9Sealing ringNitrile rubber222Plug351
    10Sealing ringNitrile rubber223Oil gauge1
    11Bearing sleeve45424Vent1
    12Bearing coverHT200125Grease nippleC36052
    13Bearing coverHT200126Gearbox sealsBarley paper2

    Air Supply Roots Type Air Blower Accessorie
    Inlet filter silencer, Discharge silencer, Anchor bolts, Baseframe, Safety valve, Check valve, Discharge pressure gauge, Flexible connections, Lubricant oil.

    Air Supply Roots Type Air Blower Application

    Water TreatmentAquaculturePowder and granules
    Be used in water treatment plant for water purification and sediment mixingBe used in a variety of fish pond for oxygen supply and mixing, and also for aquariums and live fish tankPowder or granules
    (such as plastic materials, etc.) can be transported by pressure or vacuum
    BoosterCompost fermentationCereals Transportation
    Used for high-pressure exhaust to make the gas into tiny moleculesHigh-pressure air take into the livestock manure tank to increase contact area of livestock manure and air , also apply to sewage treatmentCereals such as wheat are transported from the rotary pilot valve with air
    Pipe clearingSaunaPlating Bath
    Used to remove dirt and iron dust during pipeline replacement or overhaulUsed for the sauna to provide air bubbles, mainly used for hospitals, hotels and etc.Use air to stir the electrolyte to keep the electrolyte circulation, and disperse the attached blister to make plating quickly, spread evenly
    Produce line dryingCar wash drySmoke exhaust
    Quickly remove the water or oil on the cleaned itemsDry the car after washingExhaust smoke quickly to reduce pollution
    Stripping from moldAir cushion of
    Cut off machine
    Dry air knife
    Easy to remove the finished product after stampingIncrease buoyancy, easy to moveUse the blower to blow off the tiny dust and water droplets on the circuit board
    Feed paper/clothWashing machine
    blow dry
    Gas /heavy fuel injection
    Collect plastic, cloth, paper and other scrap generated after trimmingDried bottles after washing, suitable for food industryProvide high pressure (2000 mmAq) and sufficient air volume

    Common malfunctions and Solution

    BlowerCan not rotateCan rotated by handThe motor is damagedRepair or replace the motor
    Can rotated round by handThe lobes are lockedOpen to repair
    The impurity in blowerOpen to clean
    Can rotateAbnormal sound or vibrationSkid, v-belt is too tight or too looseAdjust v-belt tension
    Pulley offsetReset pulley
    Pulley and belt cover frictionAdjust belt cover
    Bearing oil lack or agingTo replace the oil
    Gear oil lack or agingTo replace the oil
    The safe valve leakageAdjust the safe valve
    Foundation insufficient strengthTo strengthen the foundation strength
    Piping resonanceEliminate by the silencer and support
    Exhaust pressure rises abruptlySee *annotated
    Anchor bolt is too looseTighten
    Rotor interferenceOpen to repair
    The impurity in blowerOpen to clean
    Check valve badReplace
    OverheatingExhaust pressure rises abruptlySee *annotated
    Temperature of working environment exceeds 40 ºCVentilated working environment
    Inlet silencer obstructionCleaning/replace filter
    Airflow insufficientPipeline leaksTighten the pipe connection
    Inlet silencer obstructionCleaning/replace filter
    The safe valve leakageAdjust the safe valve
    V-belt is too looseAdjust v-belt tension
    Exhaust pressure rises abruptlySee *annotated
    Exhaust pressure rises abruptlyShut off the valveFully open the valve
    The water level risesAdjust water level
    Inlet/outlet pipe jamsCleaning debris
    Valve bad or twist reversed directionReplace or reverse direction twist
    Airflow overpoweredReduce round speed or exhaust
    Oil leakLubrication oil overmuchRefuel to the center of oil standard

    Processing Workshop


    CE certificate, ISO9001 certificate and SGS certificate.


    1. What's the information should I provide when inquiry?
    A: Air capacity
    B: Pressure
    C: Application
    D: Use environment(Temperature, atmospheric pressure)
    E: Do you need motor?
    Or other specials you give us will be more appreciated.

    2. How long is the service life of Air Supply Roots Type Air Blower?

    In normal use environment

    A- Service life of blower is more than 10 years.
    B- Service life of Impeller is more than 60,000 hours.
    C- Service life of bearing is more than 50,000 hours.

    D- Service life of gear is more than 60,000 hours.

    3. What is your terms of packing?
    A: Generally, we pack our small blowers in Immunized Fumigation-Free Wood Case, the large blowers are packed on iron pallet. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

    4. How does your factory control product quality?
    We have quality inspection department. All blowers are running more than 3 hour before delivery to test the quality. If there is quality problem, we will produce new one.

    5.What are your terms of payment?

    Description of Performance parameters

    The performance parameters table shows the model, outlet diameter, rotate speed, discharge pressure, air capacity and power of motor.

    1. The air capacity and pressure in the tables is in standard suction state. The standard suction state is 20ºC temperature, 1.033 kgf/cm2(101.3Kpa) Standard atmospheric pressure and 65% relative humidity.

    2. The air capacity and pressure range of some blower models is repeated, to ensure the service life and low noise, should use the larger model.

    DSR300A Roots blower

    Rotate Speed




    Air Capacity








    Quality Construction Simple Roots Rotary Blower With Three Lobe 980 ~ 1310rpm for sale
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