China best Hight Speed Oil Less Combination Rotary Vane Vacuum Pump vacuum pump ac system

Product Description


Product Description



WZB Series Oil Free Vacuum Sealer Rotary Vane Vacuum Pump

Introducing the WZB Series Oil Free Vacuum Sealer Rotary Vane Vacuum Pump, a reliable and efficient solution for all your vacuum sealing needs. This dry rotary vane vacuum pressure compound pump air pump offers a pure exhaust, ensuring a clean and hygienic environment. With its low noise operation, you can enjoy a peaceful and serene atmosphere while using this pump.

Designed with the latest cooling technology, the pump features a unique cooling device that effectively reduces compressed air humidity. This ensures an ideal working condition for your vacuum sealing tasks.

The WZB Series Vacuum Pump is equipped with a high-speed design, guaranteeing optimal performance. However, please note that it is not suitable for use in the 60HZ area. If you plan to use it in this area, we recommend contacting our agent or the manufacturer for further assistance.

When it comes to the environment in which the pump operates, it can handle temperatures ranging from 0 to 40ºC. The humidity level should ideally be within the range of 65±20%. Additionally, the power supply voltage should not fluctuate beyond ±10% of the rated voltage. To ensure safety, we advise setting up an overload protector, such as a thermal relay.

Rest assured that the WZB Series Vacuum Pump is built to last. Its motor label indicates the rated current value, which is standard at 110% for 50HZ and 120% for 60HZ (equivalent performance to 50HZ). This pump is a reliable and efficient choice for various applications.

Experience the benefits of the WZB Series Oil Free Vacuum Sealer Rotary Vane Vacuum Pump. Order yours today and enjoy the convenience and peace of mind it brings to your vacuum sealing tasks.

Features At A Glance


Dry Running Rotary Vane Vacuum Pump

Introducing the WZB Series Oil Free Vacuum Sealer Rotary Vane Vacuum Pump, a reliable and efficient solution for all your vacuum needs. This pump is designed to provide a calm and soothing experience, ensuring a pollution-free environment for your working space or products.

Unlike traditional oil vacuum pumps, our WZB Series pump does not require any fuel or regular maintenance, saving you time and effort. With its low running sound and long service life, you can enjoy a peaceful and uninterrupted workflow.

Equipped with a vacuum pressure gauge and pressure regulator, this pump allows you to easily monitor and adjust the vacuum level according to your specific requirements. Its special self-lubricating carbon slide ensures strong wear resistance, guaranteeing durability and reliability.

Thanks to its high-speed operation, the WZB Series pump can be directly connected to the motor, allowing for a compact and space-saving design. The multiple sliding plates enable stable suction and exhaust, minimizing pulsation and ensuring a smooth operation.

Experience the benefits of the WZB Series Oil Free Vacuum Sealer Rotary Vane Vacuum Pump, brought to you by HangZhou Mingkai Electromechanical Co., Ltd. Perfect for various fields, including CNC machines and print machines, this pump offers oil-free operation, a rotary vacuum pump structure, and excellent vacuum performance.


Product Parameters

Model Power(kw) Voltage(V) Speed(rmp) Air flow(L/min) Vacuum(KPa) In/Outlet size Weight(kg)
WZB15-P – –
V-01 0.4 200-240 1450 235 60 G3/4 24
V-03 0.4 220/380 1450 235 60 G3/4 21
B-01 0.4 200-240 1450 235 G3/4 24
B-03 0.4 220/380 1450 235 G3/4 21
VB-01 0.4 200-240 1450 235 V(suction)+B(exhaust)<60KPa G3/4 24
VB-03 0.4 220/380 1450 235 V(suction)+B(exhaust)<60KPa G3/4 21
WZB25-P – –
V-01 0.75 200-240 1450 405 60 G3/4 24
V-03 0.75 220/380 1450 405 60 G3/4 33
B-01 0.75 200-240 1450 405 G3/4 24
B-03 0.75 220/380 1450 405 G3/4 33
VB-01 0.75 200-240 1450 405 V(suction)+B(exhaust)<60KPa G3/4 24
VB-03 0.75 220/380 1450 405 V(suction)+B(exhaust)<60KPa G3/4 33
WZB40-P – –
V-01 1.5 200-240 1450 575 60 G3/4 55
V-03 1.5 220/380 1450 575 60 G3/4 50
B-01 1.5 200-240 1450 575 G3/4 55
B-03 1.5 220/380 1450 575 G3/4 50
VB-01 1.5 200-240 1450 575 V(suction)+B(exhaust)<60KPa G3/4 55
VB-03 1.5 220/380 1450 575 V(suction)+B(exhaust)<60KPa G3/4 50
WZB60-P – –
V-03 2.2 220/380 1450 1190 60 G1 79
B-03 2.2 220/380 1450 1190 G1 79
VB-03 2.2 220/380 1450 1190 V(suction)+B(exhaust)<60KPa G1 79

combination pump

Model Power(kw) Voltage(V) Speed(rmp) Air flow(L/min) Vacuum(KPa) Pressure(KPa) In/Outlet size Weight(kg)
30-P-VB-03 0.75 220/380 1730 280 60 60 G3/4 41
50-P-VB-03 1.5 220/380 1730 480 60 60 G3/4 53
80-P-VB-03 2.2 220/380 1730 685 60 60 G3/4 69
120-P-VB-03 4 220/380 1730 1115 60 60 G1 110
30-P-VBVB-03 vacuum 0.75 220/380 1730 280 55 20 G3/4 41
blower 35 50
50-P-VBVB-03 vacuum 1.5 220/380 1730 480 55 20 G3/4 53
blower 35 50
80-P-VBVB-03 vacuum 2.2 220/380 1730 685 55 20 G3/4 69
blower 35 50

Our History:

Manvac, a company founded in 2012, has established itself as a trusted name in the industry. With our head office located in Hong Kong and our factory and export sales office situated in HangZhou city, China mainland, we have been able to cater to the needs of customers worldwide.

Our Factory:

Situated in HangZhou, our factory spans an impressive 6000m² area. Comprising 3 buildings dedicated to production, half-finished product storage, and a finished product warehouse, our facility is equipped to meet the demands of our customers efficiently and effectively.

Product Description:

Introducing the WZB25 Oil-Free Electric Vacuum Pump for Print Machines by HangZhou Mingkai Electromechanical Co., Ltd. This innovative pump is designed to provide exceptional performance and reliability, making it an ideal choice for CNC machines and print machines.

With its oil-free operation, this vacuum pump ensures a clean and efficient working environment. The rotary vacuum pump structure guarantees optimal performance, while the impressive vacuum level ensures superior results.

Key Features:
– Oil-Free: This pump eliminates the need for oil, ensuring a clean and hassle-free operation.
– Rotary Vacuum Pump: The innovative design of this pump ensures efficient and reliable performance.
– Impressive Vacuum Level: With its exceptional vacuum level, this pump delivers outstanding results.

Whether you need a pump for your CNC machine or print machine, the WZB25 Oil-Free Electric Vacuum Pump is the perfect choice. Experience the benefits of a clean and efficient working environment, enhanced performance, and superior results. Trust in HangZhou Mingkai Electromechanical Co., Ltd. for all your vacuum pump needs.

Our Product:

WZB25 Oil Free Electric Vacuum Pump for Print Machine

Introducing the WZB25 Oil Free Electric Vacuum Pump, a cutting-edge solution designed by HangZhou Mingkai Electromechanical Co., Ltd. to meet the specific needs of print machines. This high-performance pump is perfect for CNC machines and offers a range of exceptional features.

  • Oil Free: With its advanced technology, this vacuum pump operates without the need for oil, ensuring a clean and efficient printing process.
  • Rotary Vacuum Pump: The WZB25 utilizes a rotary vacuum pump structure, providing reliable and consistent performance for your print machine.
  • Vacuum: Achieve the desired vacuum level effortlessly with the WZB25. Its powerful suction capabilities ensure optimal printing results.

Experience the benefits of this exceptional electric vacuum pump. Say goodbye to messy oil and hello to a seamless printing experience. Trust in the expertise of HangZhou Mingkai Electromechanical Co., Ltd. to deliver top-quality solutions for your print machine needs.

Product Application:

Application: Our oil-free electric vacuum pump, the WZB25, is designed to provide efficient and reliable performance in a variety of applications. Whether you need wastewater aeration treatment, air knives drying system, fish farming, or industrial vacuum and pressure system, our vacuum pump is the perfect solution.

Certifications: Rest assured, our vacuum pump meets the highest standards of quality and safety. It is CE, CCC, ROHS, NEMKO, SGS, TUV, and UL certified, ensuring its reliability and compliance with industry regulations.

Product Description:

WZB25 Oil-Free Electric Vacuum Pump for Print Machine

Introducing our WZB25 oil-free electric vacuum pump, specifically designed for print machines. With its advanced features and exceptional performance, this pump is a game-changer in the industry.

  • Oil-Free: Say goodbye to messy oil changes and maintenance. Our vacuum pump operates without oil, ensuring a clean and hassle-free experience.
  • Rotary Vacuum Pump: The innovative rotary design of our pump ensures efficient and reliable operation, providing consistent vacuum performance.
  • Vacuum: With its impressive vacuum capabilities, our pump creates the ideal conditions for your print machine, ensuring optimal performance and productivity.

Experience the difference with our WZB25 oil-free electric vacuum pump. Its exceptional features and certifications make it the perfect choice for your print machine needs. Trust in the quality and reliability of HangZhou Mingkai Electromechanical Co., Ltd.

HangZhou Mingkai Electromechanical Co., Ltd.

Product Name: WZB25 Oil Free Electric Vacuum Pump for Print Machine

Keywords: CNC Machine Pump, Oil Free Vacuum Pump, Electric Vacuum Pump

Attributes: Oil Free, Rotary Vacuum Pump, Vacuum

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Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Vacuum Degree: Vacuum
US$ 685/Piece
1 Piece(Min.Order)


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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

vacuum pump

What Are the Advantages of Using Oil-Sealed Vacuum Pumps?

Oil-sealed vacuum pumps offer several advantages in various applications. Here’s a detailed explanation:

1. High Vacuum Performance: Oil-sealed vacuum pumps are known for their ability to achieve high levels of vacuum. They can create and maintain deep vacuum levels, making them suitable for applications that require a low-pressure environment. The use of oil as a sealing and lubricating medium helps in achieving efficient vacuum performance.

2. Wide Operating Range: Oil-sealed vacuum pumps have a wide operating range, allowing them to handle a broad spectrum of vacuum levels. They can operate effectively in both low-pressure and high-vacuum conditions, making them versatile for different applications across various industries.

3. Efficient and Reliable Operation: These pumps are known for their reliability and consistent performance. The oil-sealed design provides effective sealing, preventing air leakage and maintaining a stable vacuum level. They are designed to operate continuously for extended periods without significant performance degradation, making them suitable for continuous industrial processes.

4. Contamination Handling: Oil-sealed vacuum pumps are effective in handling certain types of contaminants that may be present in the process gases or air being evacuated. The oil acts as a barrier, trapping and absorbing certain particulates, moisture, and chemical vapors, preventing them from reaching the pump mechanism. This helps protect the pump internals from potential damage and contributes to the longevity of the pump.

5. Thermal Stability: The presence of oil in these pumps helps in dissipating heat generated during operation, contributing to their thermal stability. The oil absorbs and carries away heat, preventing excessive temperature rise within the pump. This thermal stability allows for consistent performance even during prolonged operation and helps protect the pump from overheating.

6. Noise Reduction: Oil-sealed vacuum pumps generally operate at lower noise levels compared to other types of vacuum pumps. The oil acts as a noise-damping medium, reducing the noise generated by the moving parts and the interaction of gases within the pump. This makes them suitable for applications where noise reduction is desired, such as laboratory environments or noise-sensitive industrial settings.

7. Versatility: Oil-sealed vacuum pumps are versatile and can handle a wide range of gases and vapors. They can effectively handle both condensable and non-condensable gases, making them suitable for diverse applications in industries such as chemical processing, pharmaceuticals, food processing, and research laboratories.

8. Cost-Effective: Oil-sealed vacuum pumps are often considered cost-effective options for many applications. They generally have a lower initial cost compared to some other types of high-vacuum pumps. Additionally, the maintenance and operating costs are relatively lower, making them an economical choice for industries that require reliable vacuum performance.

9. Simplicity and Ease of Maintenance: Oil-sealed vacuum pumps are relatively simple in design and easy to maintain. Routine maintenance typically involves monitoring oil levels, changing the oil periodically, and inspecting and replacing worn-out parts as necessary. The simplicity of maintenance procedures contributes to the overall cost-effectiveness and ease of operation.

10. Compatibility with Other Equipment: Oil-sealed vacuum pumps are compatible with various process equipment and systems. They can be easily integrated into existing setups or used in conjunction with other vacuum-related equipment, such as vacuum chambers, distillation systems, or industrial process equipment.

These advantages make oil-sealed vacuum pumps a popular choice in many industries where reliable, high-performance vacuum systems are required. However, it’s important to consider specific application requirements and consult with experts to determine the most suitable type of vacuum pump for a particular use case.

vacuum pump

Can Vacuum Pumps Be Used for Leak Detection?

Yes, vacuum pumps can be used for leak detection purposes. Here’s a detailed explanation:

Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.

Here are some ways in which vacuum pumps can be used for leak detection:

1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.

2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.

3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.

4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.

5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.

In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.

vacuum pump

What Is the Purpose of a Vacuum Pump in an HVAC System?

In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here’s a detailed explanation:

The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.

Here are the key reasons why a vacuum pump is used in an HVAC system:

1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.

2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.

3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.

4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.

In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.

China best Hight Speed Oil Less Combination Rotary Vane Vacuum Pump   vacuum pump ac system	China best Hight Speed Oil Less Combination Rotary Vane Vacuum Pump   vacuum pump ac system
editor by CX 2023-12-27

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