Shandong, China
Business Type:
Manufacturer/Factory & Trading Company
Registered Capital:
3.13 Million USD
Plant Area:
11500 square meters
Management System Certification:
ISO 9001
OEM/ODM Availability:
OEM/ODM Service
MEI Awards

Roots Vacuum Blower, Vacuum Packing Blower, Vacuum Impregnation manufacturer / supplier in China, offering Dsr50V China Vacuum Pump for Vacuum Packaging, Dsr Shandong Manufacturer Roots Blower for Water Treatment, Dfsr-Wn Series Mvr Roots Steam Compressor Blower for Mechanical Vapor Recompression and so on.

Gold Member Since 2018
Audited Supplier

Dsr50V China Vacuum Pump for Vacuum Packaging

Get Latest Price
Min. Order / Reference FOB Price
1 Set US $550-10,000/ Set
Port: Qingdao, China
Production Capacity: 1000 Set/Sets Per Month
Payment Terms: L/C, T/T
Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: -9.8 to -49 Kpa
Work Function: Vacuum Pump
Working Conditions: Dry

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Basic Info

Model NO.
Air Capacity
0.86 - 2.46 M3/Min
Rotating Speed
1100 - 2120 Rpm
Motor Power
0.75 - 4 Kw
Driving Method
Belt and Coupling Drive
Net Weight
70 Kg
Type of Technology
Positive Displacement Pumps
Air, Neutral Gases
ISO9001 and Ce Certificate
Under 80dB
Transport Package
Fumigation Free Plywood Case
HS Code
DSR50V china vacuum pump for vacuum packaging

Product Introduce
Dsr50V China Vacuum Pump for Vacuum Packaging
DICHENG DSR50V Series Roots Vacuum Pump adopts the advanced technology of Japan,
its air capacity is 0.86m3/min - 2.46m3/min,
the negative pressure is from -9.8Kpa to -49Kpa. 

The main characteristic of our air blower is small volume, light weight, flow strong, noise small, steadily reliable operation.

Product Feature

Dsr50V China Vacuum Pump for Vacuum Packaging
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. Bearing are all lubricated by oil moist
6. Long service life

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.
Type of technologyPositive displacement blowers
DesignNegative pressure
Air capacity0.86 to 2.46 m³/min
Negative Pressure-9.8 to -49Kpa
MediumAir, Neutral gases
Discharge Diameter50mm(or customized)

Blower Structure Diagram
Dsr50V China Vacuum Pump for Vacuum Packaging
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 gauge 1
11Bearing sleeve45424Vent 1
12Bearing coverHT200125Grease nippleC36052
13Bearing coverHT200126Gearbox sealsBarley paper2

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

Dsr50V China Vacuum Pump for Vacuum Packaging

Roots Vacuum Blower Application
Vacuum packagingExhaust dust emissionsVacuum dehydration
Vacuum packaging using vacuum suctionRemove dust or toxic gas from tunnels and small construction sites Pulp dewatering, sludge dewatering, cloth dehydration and etc.
Industrial vacuum cleanerPowder and granules
Draw welding waste gas
Remove residual debris from the machinePowder or granules
 (such as plastic materials, etc.) can be transported by pressure or vacuum
Remove fumes and dust from welding to ensure operator health
Printing machine adsorption  
Using the adsorption force fixed in printing operations  

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

Dsr50V China Vacuum Pump for Vacuum Packaging

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. How long is the service life of roots 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 30,000 hours.
D- Service life of gear is more than 60,000 hours.
4. What is your terms of packing?
A: Generally, we pack our goods in Fumigation Free Plywood Case. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
5. How does your factory control product quality? 
We have quality inspection department. Before sending out product, we check each product. If there is quality problem, we will produce new one.
6.What are your terms of payment?

Contact Us
Shandong Dacheng Machinery Technology Co., LTD
Zhangqiu Mingshui, Jinan City, Shandong province, China 250200.
Tel: +86 0531-83216898
Fax: +86 0531-83216898
Cellphone: +86 013188890202

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