China Hot selling Zjb-30 Model Roots Vacuum Pump/Air Pump vacuum pump distributors

Product Description

 

   Model Suction capacity         (L/S)

Limit vacuum

    (≤Pa) 

 Speed

  (rpm)

Motor Power

      (kw)

Inlet Dia.

   (mm)

Outlet Dia.

    (mm)

  Weight

    (Kg)

Recommended backing pump       model
   ZJ-70          70      6×10-2   2780         1.5     80       50     87  2X-8
  ZJB-70      5×10-2     100
  ZJ-150A          150      6×10-2   2900          3     100      100     198     2X-15
  ZJB-150      5×10-2     215
  ZJ-300          300      6×10-2   1450          4     150      150     490      2X-30A
  ZJB-300      5×10-2     480
  ZJ-600          600      6×10-2   2900         5.5     150      150     490       2X-70A
  ZJB-600      5×10-2     503
  ZJ-1200A         1200      6×10-2   1450          11     300      300    1550       2X-70A           (2sets)
  ZJB-1200      5×10-2     250      250    1580

JZB Roots vacuum pump

1. Construction features and working principle of the pump:
Model ZJ Mechanical Booster Pump, also known as a Roots pump, is a volumetric pump.
It employs a pair of rotors, identical and in 8-figure with certain clearance between them
in the pump housing, rotating at the same speed in opposite directions to perform
function of suction and discharge of gas. The 2 rotors are supported by rolling bearings
in the end covers of the pump, rotating at high speed and are kept at a
fixed relative position by a pair of timing gears. The end clearance between rotors and
end covers are fixed by adjustable metal shims between the bearing housings and the
end cover at the fixed end, which ensures one-direction expansion of the rotor when
temperature rises during its operation.
Four sets of inner seals (also known as piston ring) in the 2 end covers prevent lube oil
entering into the pump housing. The shaft seal at the front-end cover, also called as
framework oil seal or shaft seal, prevents leakage of air into the pump housing.
In order to reduce temperature of the pump, all models of pumps (expect the two
smallest models) are equipped with a gearbox cooler and front-end cover cooler.
Power is transmitted through a coupling or V-belt from the motor to the driving shaft of
the pump and then through synchronizing gears to the driven shaft

Product’s Application

 Product Display

Company Power

 

FAQ

1.Q:Are you a manufacturer or trading company?

   A: We are a professional vacuum pump manufacturer with over 32 year experience. We have 2 factories now which cover more than 33333 square meters,we have rich experience in CHINAMFG liquid industry , Welcome to visit our factory at your time.
2.Q:Do you have minimum order quantity request?

   A: for spare parts we have no MOQ,but for whole set equipment of course 1 set is the minimum.

3.Q:Do you have certificates?

    A: Yes, we have CE, ISO,SGS.etc. certificates.

5.Q:How to pay?

      A:T/T and Alibaba Payment is acceptable.

6.Q:How to pack the products?

   A: We use standard export package. If you have special package requirements, we will pack as you required, but the fees will be paid by customers.

7.Q: What about your delivery time?
   A: It depends on your pump quantity. Generally 15 days after we receive the prepayment. We will confirm you again when we start to produce.

8.Q:How to install after the equipment arriving destination?

   A: We will sent the operating instruction with goods to you.Please strictly follow the instructions for installation
9.Q: How long does your product quality warranty last?
   A: 12 months for all our products against any non-artificial quality problem since the product leave our factory.

10.Q: What will you do with quality complaint?

     A: We have a complete set of microcomputer controlled testing system(All products are subject to tested before delivery. No product that failed performance test leaves our factory.

 

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Warranty: 12 Months
Oil or Not: Oil
Structure: Singel Stage
Exhauster Method: Roots Vacuum Pump
Vacuum Degree: Low Vacuum
Work Function: Fore Pump
Customization:
Available

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roots vacuum pump

Can Roots Vacuum Pumps Be Used for Vacuum Impregnation in Manufacturing?

Yes, Roots vacuum pumps can be used for vacuum impregnation in manufacturing. Here’s a detailed explanation:

1. Vacuum Impregnation in Manufacturing: Vacuum impregnation is a process used in manufacturing to fill porous materials or components with a liquid or resin. It is commonly employed to enhance the properties of materials by improving their strength, sealing capability, or resistance to chemicals or corrosion. The process involves placing the porous material in a vacuum chamber and removing the air or gas trapped within its pores. Once a vacuum is established, a liquid or resin is introduced, and the vacuum is released, allowing the material to absorb the impregnating substance.

2. Role of Roots Vacuum Pumps: Roots vacuum pumps play a crucial role in the vacuum impregnation process by creating and maintaining the required vacuum conditions. Here’s how they contribute:

– Evacuation: Roots pumps are used to evacuate the impregnation chamber, removing the air and gas from within the pores of the porous material. By creating a vacuum, the trapped gases are extracted, creating a void space for the impregnating substance to penetrate.

– Pressure Control: Roots pumps help control the pressure within the impregnation chamber during different stages of the process. They can rapidly achieve and maintain the desired vacuum level, ensuring proper impregnation of the material and preventing the formation of air bubbles or voids.

– Gas Removal: Roots pumps effectively remove gases released from the impregnating substance during the impregnation process. As the liquid or resin fills the pores of the porous material, gases may be released due to the reaction or outgassing. The vacuum pump evacuates these gases, preventing their accumulation and ensuring complete impregnation.

3. Advantages of Roots Vacuum Pumps for Vacuum Impregnation:

– High Pumping Speed: Roots vacuum pumps have a high pumping speed, enabling rapid evacuation of the impregnation chamber. This reduces the overall impregnation cycle time, increasing manufacturing throughput and efficiency.

– Large Volume Handling: Roots pumps are capable of handling large volumes of gas, allowing them to evacuate chambers of different sizes effectively. This is advantageous when impregnating large or complex-shaped components that require a significant amount of impregnating substance.

– Continuous Operation: Roots pumps can operate continuously, maintaining the vacuum conditions required for impregnation throughout the process. This ensures consistent impregnation results and reduces the risk of incomplete impregnation or material defects.

– Compatibility with Impregnating Substances: Roots vacuum pumps are compatible with a wide range of impregnating substances, including resins, oils, solvents, and other liquids. They can handle different chemical compositions and provide a clean and efficient environment for the impregnation process.

4. Considerations for Vacuum Impregnation:

– Material Compatibility: It is essential to consider the compatibility of the porous material with the impregnating substance and the impregnation process itself. Some materials may require pre-treatment or surface preparation before impregnation. The choice of impregnating substance should also align with the material’s properties and intended application.

– Process Parameters: Vacuum impregnation involves controlling various process parameters, such as vacuum level, impregnation time, pressure release, and curing conditions. These parameters may vary depending on the material, impregnating substance, and desired impregnation results. Proper process optimization and control are crucial for achieving consistent and reliable impregnation outcomes.

– System Design: The design of the vacuum impregnation system should consider factors such as chamber size, gas flow rates, vacuum pump capacity, and pressure control mechanisms. Proper system design ensures efficient operation, reliable vacuum conditions, and effective impregnation of the porous material.

In summary, Roots vacuum pumps are well-suited for vacuum impregnation in manufacturing. Their high pumping speed, large volume handling capability, continuous operation, and compatibility with impregnating substances make them effective in creating and maintaining the required vacuum conditions for successful impregnation. By considering material compatibility, process parameters, and system design, Roots vacuum pumps contribute to the efficient and reliable impregnation of porous materials in various manufacturing applications.

roots vacuum pump

What Is a Roots Vacuum Pump, and How Does It Work?

A Roots vacuum pump, also known as a Roots blower or a rotary lobe pump, is a type of positive displacement vacuum pump that is widely used for various industrial applications. Here’s a detailed explanation of what a Roots vacuum pump is and how it works:

A Roots vacuum pump consists of two synchronized rotors, known as lobes or impellers, that rotate in opposite directions within a housing. The lobes have a unique helical shape with multiple lobes, which allows them to trap and move gas efficiently. The rotors are synchronized with the help of timing gears to maintain precise clearances between the lobes and the housing.

The operation of a Roots vacuum pump can be described in the following steps:

1. Inlet Stage: The process begins with the lobes rotating in opposite directions. As the lobes rotate, the volume between them and the housing gradually increases, creating a larger space at the inlet side of the pump. This expansion of the volume causes the gas to enter the pump through the inlet port. The gas is drawn in due to the pressure difference between the inlet and the pump’s internal chamber.

2. Compression Stage: As the gas enters the pump, it gets trapped in the spaces between the lobes and the housing. As the lobes continue to rotate, the trapped gas gets carried along the rotating lobes. The gas is essentially trapped in the pockets formed by the lobes and the housing. The rotating lobes then compress the gas as they move towards the outlet side of the pump.

3. Outlet Stage: As the lobes approach the outlet side of the pump, the volume between them and the housing decreases, resulting in the compression of the trapped gas. This compression raises the pressure of the gas, causing it to be expelled through the outlet port of the pump. The expelled gas is then discharged into the atmosphere or directed to a downstream process or another vacuum pump, depending on the application.

It’s important to note that a Roots vacuum pump operates as a non-contacting pump, meaning that there is no physical contact between the lobes or between the lobes and the housing. This characteristic eliminates the need for lubrication within the pump and reduces the risk of contamination or oil vapor backstreaming into the vacuum system.

Roots vacuum pumps are known for their high pumping speed and ability to handle large volumes of gas. However, they are not capable of achieving high vacuum levels on their own. To achieve higher vacuum levels, a Roots pump is often used in conjunction with other vacuum pumps, such as rotary vane pumps or diffusion pumps, in a hybrid or combination pumping system.

In summary, a Roots vacuum pump operates based on the principle of positive displacement. It utilizes synchronized rotating lobes to trap and compress gas, allowing it to be discharged at a higher pressure. The non-contacting design of the pump eliminates the need for lubrication and reduces the risk of contamination. Roots vacuum pumps are commonly employed in various industrial applications, especially when high pumping speed and large gas handling capacity are required.

China Hot selling Zjb-30 Model Roots Vacuum Pump/Air Pump   vacuum pump distributorsChina Hot selling Zjb-30 Model Roots Vacuum Pump/Air Pump   vacuum pump distributors
editor by CX 2024-04-09