Shandong Dacheng Machinery Technology Co., Ltd.
| Supply Ability | 200 sets per month. |
| Delivery Time | Generally, it will take 7 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 | Negative Pressure Blower |
| Air Capacity | 65.44 - 122.2 M3/Min |
| Vacuum | -9.8 to -49 Kpa |
| Application | Vacuum |
| Driving Method | Belt or Coupling Drive |
| Net Weight | 2118kg |
| Medium | Clear air |
| Conveying | Oil-Free |
| Noise | Under 80dB |
| Type | Postive Displacement |
| Brand Name | DICHENG |
| Model Number | DSR300V |
| Certification | ISO9001, CE, SGS |
| Place of Origin | SHANDONG |
View Detail Information
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Product Specification
| Supply Ability | 200 sets per month. | Delivery Time | Generally, it will take 7 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 | Negative Pressure Blower |
| Air Capacity | 65.44 - 122.2 M3/Min | Vacuum | -9.8 to -49 Kpa |
| Application | Vacuum | Driving Method | Belt or Coupling Drive |
| Net Weight | 2118kg | Medium | Clear air |
| Conveying | Oil-Free | Noise | Under 80dB |
| Type | Postive Displacement | Brand Name | DICHENG |
| Model Number | DSR300V | Certification | ISO9001, CE, SGS |
| Place of Origin | SHANDONG |
Product Introduce
DICHENG DSR300V Series Roots Vacuum Pump adopts the advanced technology of Japan,
| Type of technology | Positive displacement blowers |
| Design | Negative pressure |
| Air capacity | 65.44 to 122.2 m³/min |
| Negative Pressure | -9.8 to -49Kpa |
| Medium | Clear Air |
| Conveying | Oil-free |
| Weight | 2118kg |
| Discharge Diameter | 300mm(or customized) |
The main characteristic of our air blower is small volume, light weight, flow strong, noise small, steadily reliable operation.
Product Feature
1. Air flow and pressure can be customized
2. Stable air flow and less pressure variation
3. Clean air not with oil moist
4. Construction simple and easy maintenance
5. Long service life
Blower Structure Diagram
| No. | Name | Material | Q' ty | No. | Name | Material | Q' ty |
| 1 | Shell | HT200 | 1 | 14 | Z sealing ring | Nitrile rubber | 1 |
| 2 | Impeller | HT200 | 2 | 15 | Gear | 35CrM | 2 |
| 3 | Drive shaft | 45Cr | 1 | 16 | Gear lock washer | Q235 | 2 |
| 4 | Driven shaft | 45Cr | 1 | 17 | Gear lock nut | SS400 | 2 |
| 5 | Drive side siding | HT200 | 1 | 18 | Gearbox | HT200 | 1 |
| 6 | Gear side siding | HT200 | 1 | 19 | Sleeve | 45 | 1 |
| 7 | Drive bearing | NSK | 2 | 20 | End cover | Q235 | 2 |
| 8 | Driven bearing | NSK | 2 | 21 | Pin | 45 | 1 |
| 9 | Sealing ring | Nitrile rubber | 2 | 22 | Plug | 35 | 1 |
| 10 | Sealing ring | Nitrile rubber | 2 | 23 | Oil gauge | 1 | |
| 11 | Bearing sleeve | 45 | 4 | 24 | Vent | 1 | |
| 12 | Bearing cover | HT200 | 1 | 25 | Grease nipple | C3605 | 2 |
| 13 | Bearing cover | HT200 | 1 | 26 | Gearbox seals | Barley paper | 2 |
Blower Accessorie
Inlet filter silencer, Discharge silencer, Anchor bolts, Baseframe, Safety valve, Check valve, Discharge pressure gauge, Flexible connections, Lubricant oil.
Roots Vacuum Blower Application
| Vacuum packaging | Exhaust dust emissions | Vacuum dehydration |
| Vacuum packaging using vacuum suction | Remove dust or toxic gas from tunnels and small construction sites | Pulp dewatering, sludge dewatering, cloth dehydration and etc. |
| Industrial vacuum cleaner | Printing machine adsorption | Draw welding waste gas |
| Remove residual debris from the machine | Using the adsorption force fixed in printing operations | Remove fumes and dust from welding to ensure operator health |
Common malfunctions and Solution
| Malfunctions | Reason | Solution | ||
| Blower | Can not rotate | Can rotated by hand | The motor is damaged | Repair or replace the motor |
| Can rotated round by hand | The lobes are locked | Open to repair | ||
| The impurity in blower | Open to clean | |||
| Can rotate | Abnormal sound or vibration | Skid, v-belt is too tight or too loose | Adjust v-belt tension | |
| Pulley offset | Reset pulley | |||
| Pulley and belt cover friction | Adjust belt cover | |||
| Bearing oil lack or aging | To replace the oil | |||
| Gear oil lack or aging | To replace the oil | |||
| The safe valve leakage | Adjust the safe valve | |||
| Foundation insufficient strength | To strengthen the foundation strength | |||
| Piping resonance | Eliminate by the silencer and support | |||
| Exhaust pressure rises abruptly | See *annotated | |||
| Anchor bolt is too loose | Tighten | |||
| Rotor interference | Open to repair | |||
| The impurity in blower | Open to clean | |||
| Check valve bad | Replace | |||
| Overheating | Exhaust pressure rises abruptly | See *annotated | ||
| Temperature of working environment exceeds 40 ºC | Ventilated working environment | |||
| Inlet silencer obstruction | Cleaning/replace filter | |||
| Airflow insufficient | Pipeline leaks | Tighten the pipe connection | ||
| Inlet silencer obstruction | Cleaning/replace filter | |||
| The safe valve leakage | Adjust the safe valve | |||
| V-belt is too loose | Adjust v-belt tension | |||
| Exhaust pressure rises abruptly | See *annotated | |||
| Exhaust pressure rises abruptly | Shut off the valve | Fully open the valve | ||
| The water level rises | Adjust water level | |||
| Inlet/outlet pipe jams | Cleaning debris | |||
| Valve bad or twist reversed direction | Replace or reverse direction twist | |||
| Airflow overpowered | Reduce round speed or exhaust | |||
| Oil leak | Lubrication oil overmuch | Refuel to the center of oil standard | ||
Processing Workshop
Certificate
CE certificate, ISO9001 certificate and SGS certificate.
FAQ
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. What is your warranty?
Our warranty is 12 months after received the roots blower. During the warranty period, replace the damaged parts for free of charge. Out warranty period, to provide timely, high-quality technical services and price concessions spare parts to ensure continuous safe and high-quality equipment operation.
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. What are your terms of payment?
1. TT 40% AS THE ADVANCE PAYMENT AND TT 60% AFTER INSPECTION BEFORE SHIPPING.
2. 100% IRREVOCABLE L/C AT STGHT.
Description of Performance parameters
The performance parameters table shows the model, outlet diameter, rotate speed, discharge pressure, air capacity and power of motor.
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.
| DSR300V Roots vacuum blower | |||||
| Rotate Speed (r/min) | Vacuum Pressure (kpa) | Air Capacity (m3/min) | Shaft Power (KW) | Motor | |
| Model | Power (KW) | ||||
| 900 | -13.3 | 78.00 | 35.84 | Y225M-4 | 45 |
| -20.0 | 74.50 | 46.02 | Y250M-4 | 55 | |
| -26.7 | 71.82 | 56.78 | Y280S-4 | 75 | |
| -33.3 | 68.75 | 67.01 | Y280S-4 | 75 | |
| -40.0 | 66.10 | 78.02 | Y280M-4 | 90 | |
| -44.0 | 65.44 | 84.38 | Y280M-4 | 90 | |
| 980 | -13.3 | 86.00 | 39.42 | Y225M-4 | 45 |
| -20.0 | 82.70 | 50.90 | Y250M-4 | 55 | |
| -26.7 | 79.95 | 62.46 | Y280S-4 | 75 | |
| -33.3 | 77.05 | 73.60 | Y280S-4 | 75 | |
| -40.0 | 76.23 | 84.71 | Y280M-4 | 90 | |
| -44.0 | 75.75 | 92.61 | Y315S-4 | 110 | |
| 1070 | -13.3 | 93.41 | 42.75 | Y250M-4 | 55 |
| -20.0 | 92.10 | 55.25 | Y280S-4 | 75 | |
| -26.7 | 88.95 | 67.73 | Y280S-4 | 75 | |
| -33.3 | 86.00 | 79.80 | Y280M-4 | 90 | |
| -40.0 | 84.45 | 92.90 | Y315S-4 | 110 | |
| -44.0 | 83.10 | 107.1 | Y315M-4 | 132 | |
| 1160 | -13.3 | 103.5 | 47.36 | Y250M-4 | 55 |
| -20.0 | 100.3 | 61.10 | Y280S-4 | 75 | |
| -26.7 | 98.10 | 75.03 | Y280M-4 | 90 | |
| -33.3 | 95.45 | 89.00 | Y315S-4 | 110 | |
| -40.0 | 92.82 | 103.1 | Y315M-4 | 132 | |
| -44.0 | 92.25 | 117.0 | Y315M-4 | 132 | |
| 1240 | -13.3 | 111.5 | 51.20 | Y280S-4 | 75 |
| -20.0 | 108.1 | 66.10 | Y280S-4 | 75 | |
| -26.7 | 105.6 | 81.00 | Y280M-4 | 90 | |
| -33.3 | 102.5 | 96.00 | Y315S-4 | 110 | |
| -40.0 | 100.2 | 111.4 | Y315M-4 | 132 | |
| -44.0 | 99.53 | 126.2 | Y315L1-4 | 160 | |
| 1350 | -13.3 | 122.2 | 54.01 | Y280S-4 | 75 |
| -20.0 | 119.4 | 69.80 | Y280S-4 | 75 | |
| -26.7 | 117.0 | 85.60 | Y280M-4 | 90 | |
| -33.3 | 114.8 | 101.6 | Y315M-4 | 132 | |
| -40.0 | 111.7 | 117.6 | Y315M-4 | 132 | |
| -44.0 | 110.5 | 133.0 | Y315L1-4 | 160 | |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2004
Total Annual:
2000000-2500000
Employee Number:
200~300
Ecer Certification：
Active Member
Shandong Dacheng Machinery Technology Co., Ltd. is a professional large-scale manufacturer of various blowers, integrating development and production together. Our main products include Roots Blower, Roots Vacuum Blower, Centrifugal Fan, Multistage Centrifugal Blower and Other Industrial Blower. Our... Shandong Dacheng Machinery Technology Co., Ltd. is a professional large-scale manufacturer of various blowers, integrating development and production together. Our main products include Roots Blower, Roots Vacuum Blower, Centrifugal Fan, Multistage Centrifugal Blower and Other Industrial Blower. Our...
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