Rotary Piston Vacuum Pumps



HZPT professional manufacturing

HZPT is a renowned manufacturer and supplier specializing in designing, producing, and selling high-quality . With years of expertise in the vacuum technology industry, HZPT has established itself as a leader in providing innovative and efficient vacuum solutions. Our Pumps are engineered for superior performance, reliability, and durability, meeting the diverse needs of various industries, including manufacturing, pharmaceuticals, food processing, and electronics.

At HZPT, we are committed to excellence and innovation. Our Rotary Piston Vacuum Pumps are designed with precision, utilizing advanced engineering techniques and high-quality materials to ensure optimal performance and longevity. These pumps are known for their high vacuum levels, low noise operation, and minimal maintenance requirements, making them a preferred choice for businesses looking to enhance their operational efficiency and productivity.

Other vacuum pump products: Water ring vacuum pumpScrew Vacuum Pump、Reciprocating Vacuum Pump

Advantages of rotary piston vacuum pumps compared with screw vacuum pumps

Feature Rotary Piston Vacuum Pump Screw Vacuum Pump
Ultimate Vacuum Level Can achieve very high vacuum levels, often lower than 0.001 Torr. Typically achieves vacuum levels up to 0.01 Torr, which is sufficient for many applications but not as low as rotary piston pumps.
Durability Extremely durable with a robust design, capable of handling harsh operating conditions and contaminants. Less tolerant to particles and liquid ingress, requiring cleaner operating conditions to prevent damage.
Maintenance Requires more frequent maintenance due to more moving parts and oil changes. Lower maintenance requirements due to fewer moving parts and often being oil-free.
Operational Noise Tends to be noisier due to its design and operating mechanism. Generally operates more quietly, making it suitable for noise-sensitive environments.
Initial Cost Typically has a higher initial cost due to its complex design and manufacturing process. Usually less expensive upfront compared to rotary piston vacuum pumps.
Fluid Handling Better at handling process-induced vapors and contaminants without significant performance degradation. Less capable of dealing with large amounts of vapors or contaminants without pre-treatment.
Efficiency at Low Pressure More efficient at very low pressures, making it ideal for applications requiring deep vacuum. Efficiency decreases at lower pressures, making it less ideal for deep vacuum applications.
Size and Weight Generally larger and heavier, requiring more space for installation. Compact and lighter, allowing for easier integration into systems where space is limited.


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Features of rotary piston vacuum pump

1. High Vacuum Capability: These pumps are capable of achieving high vacuum levels, which are crucial in many industrial and scientific applications where a deep vacuum is required.

2. Durable Construction: The pumps are typically built with durable materials that can withstand the rigors of continuous operation, ensuring long-term reliability and stability.

3. Efficient Operation: The reciprocating motion of the piston allows for efficient pumping action, minimizing energy consumption and maximizing the output of vacuum pressure.

4. Easy Maintenance: Many rotary piston vacuum pumps have a modular design, which makes them easier to maintain and repair. Replacement parts are often available, further extending the lifespan of the pump.

5. Versatile Applications: These pumps can be used in a wide range of applications, including semiconductor manufacturing, scientific research, and industrial processes that require vacuum conditions.

6. Low Noise and Vibration: With proper design and manufacturing techniques, rotary piston vacuum pumps can operate with low noise and vibration levels, making them suitable for use in environments where noise pollution is a concern.

7. Adjustable Operation: Some models offer adjustable features such as variable speed control, which allows for precise adjustment of vacuum pressure to meet specific application requirements.

Rotary Piston Vacuum Pumps application fields

1. Semiconductor manufacturing industry:
In the semiconductor manufacturing process, Rotary Piston Vacuum Pumps are widely used in vacuum furnaces, vacuum packaging, thin film deposition and other links. They provide a highly stable vacuum environment, ensuring the quality and performance of semiconductor devices. For example, during film deposition, Rotary Piston Vacuum Pumps can quickly extract gases to ensure film uniformity and purity.

2. Scientific research fields:
In scientific research fields such as physics, chemistry and biology, Rotary Piston Vacuum Pumps are often used in laboratory equipment, such as mass spectrometers, molecular beam epitaxy equipment, etc. These equipment require a high-precision vacuum environment to conduct various experiments and research. Rotary Piston Vacuum Pumps can provide stable and reliable vacuum conditions to meet the needs of scientific research work.

3. Pharmaceutical industry:
In the pharmaceutical industry, Rotary Piston Vacuum Pumps are used in pharmaceutical drying, pharmaceutical synthesis and aseptic production processes. By creating a vacuum environment, these pumps remove moisture, oxygen and other impurities, ensuring the quality and stability of pharmaceutical products. At the same time, its reliability and low noise characteristics also make it suitable for places such as pharmaceutical workshops that require high cleanliness and low noise environments.

4. Vacuum metallurgy and vacuum heat treatment:
In the fields of vacuum metallurgy and vacuum heat treatment, Rotary Piston Vacuum Pumps are used to extract gases from furnaces and create a vacuum environment to promote material smelting, purification or heat treatment processes. By controlling the degree of vacuum, material properties can be optimized, such as improving alloy uniformity and reducing oxide formation.

5. Packaging industry:
Rotary Piston Vacuum Pumps are commonly used in vacuum packaging machinery during the packaging process of food, pharmaceutical and chemical products. By quickly extracting the air in the packaging bag, the product can be stored without oxygen or with low oxygen, thereby extending the shelf life of the product and improving product quality and appearance.


Rotary Piston Vacuum Pumps Innovation in Design and Construction

Design innovation:

1. Modular design: Rotary Piston Vacuum Pumps adopt a modular design, so that each component can be replaced or upgraded independently, improving the repairability and maintainability of the pump.

2. Intelligent control system: Modern Rotary Piston Vacuum Pumps integrate an intelligent control system, which can monitor the operating status of the pump in real time, adjust working parameters, and achieve remote control and fault diagnosis, improving the intelligence level of the pump.

3. Efficient cooling system: In order to cope with work in high temperature environments, some Rotary Piston Vacuum Pumps adopt efficient cooling systems, such as liquid cooling or forced air cooling, to ensure that the pump can operate stably even at high temperatures.

Structural innovation:

1. Optimize piston and cylinder design: Pistons and cylinders are the core components of Rotary Piston Vacuum Pumps. By optimizing their geometry, material selection and surface treatment, the pump's pumping efficiency can be improved, wear and leakage reduced, and the service life of the pump extended. .

2. High-precision sealing structure: Rotary Piston Vacuum Pumps adopt high-precision sealing structures, such as metal sealing rings, O-rings, etc., to ensure that the pump can maintain good sealing performance under high pressure difference and high vacuum degree.

Material Selection for Rotary Piston Vacuum Pumps

1. Wear-resistant materials: Key components such as the piston and cylinder are made of wear-resistant materials, such as special alloy steel, ceramics, etc., to improve the wear resistance and corrosion resistance of the pump.

2. High-strength materials: The pump body, connectors and other structural components are made of high-strength materials, such as stainless steel, aluminum alloy, etc., to ensure that the pump can still maintain stability and reliability under high pressure and high temperature.

3. Sealing materials: The seals are made of high-temperature-resistant and corrosion-resistant elastic materials, such as fluorine rubber, silicone rubber, etc., to ensure the sealing performance of the pump in harsh environments.


Routine maintenance and common troubleshooting of plug vacuum pumps

Routine maintenance and upkeep measures:

1. Regularly replace the lubricating oil: According to the manufacturer's recommendations, regularly replace the lubricating oil in the pump to ensure the lubrication and cooling effects.

2. Clean and inspect seals: Regularly inspect and clean the pump seals to make sure they are not worn or aged. If necessary, replace seals promptly to prevent leaks.

3. Check and tighten the connecting parts: Regularly check the pump connecting parts, such as pipes, flanges, etc., to ensure that they are fastened reliably to prevent gas leakage.

4. Clean the filter regularly: Clean the filter at the pump inlet to prevent dust, particles and other impurities from entering the pump and affecting the performance of the pump.

5. Record operating data: Regularly record the operating data of the pump, such as vacuum degree, temperature, pressure, etc., in order to detect abnormal situations in time.

Common faults and their solutions:

1. The pumping rate of the pump decreases:
Reasons: The seals are aging or worn, the lubricating oil is contaminated or insufficient, the filter is clogged, etc.
Solution: Replace seals, replace or replenish lubricating oil, clean or replace filters.
Pump body heat is too high:
Reasons: Insufficient or contaminated lubricating oil, cooling system failure, excessive friction of internal parts of the pump, etc.
Solution: replenish or replace lubricating oil, check and repair the cooling system, check and adjust the internal components of the pump.

2. Insufficient vacuum:
Reasons: leakage of seals, loose pipe connections, damage to internal parts of the pump, etc.
Solution: Replace seals, check and tighten pipe connections, check and replace damaged parts.

3. Abnormal noise:
Reason: Loose, worn or damaged parts inside the pump, insufficient lubricating oil, etc.
Solution: Check and tighten loose parts, replace worn or damaged parts, and add lubricating oil.

4. Electrical failure:
Cause: Motor failure, control circuit failure, etc.
Solution: Contact a professional electrician to check and repair the motor or control wiring.

Installation of Rotary Piston Vacuum Pumps

1. Preparation:
Before installation, carefully read and understand the product manual and operating guide to ensure you understand all installation steps and precautions.
Check that all parts of the pump are complete and not damaged or missing.
Prepare necessary installation tools and equipment, such as screwdrivers, wrenches, levels, etc.
Ensure that the installation environment is clean, free of debris, and meets the pump installation requirements (such as temperature, humidity, etc.).

2. Installation location selection:
Choose a stable and solid ground as the installation location to ensure that the pump can operate stably.
Consider the pump's inlet and outlet piping connections and choose a location that is convenient for piping connections.
Avoid installing the pump in environments with high temperatures, high humidity, or exposure to direct sunlight.

3. Fix the pump body:
Use suitable brackets or mounting plates to secure the pump body in the intended position.
Make sure the pump body is installed smoothly and use a spirit level to check its levelness.
Tighten all fixing screws to ensure the pump body is firm and stable.

4. Connect the pipes:
Prepare corresponding pipes and joints according to the size of the inlet and outlet of the pump.
Use appropriate sealing materials and seals to ensure leak-free pipe connections.
Tighten pipe connections to ensure a secure and secure connection.

5. Electrical connection:
Prepare the appropriate cables and terminal blocks according to the electrical requirements of the pump.
Connect the cable to the pump's power terminals, making sure the connection is correct and secure.
Check that electrical connections meet safety regulations and make sure there are no exposed wires or connectors.

6. Lubrication and debugging:
Add the appropriate amount of lubricant to the pump according to the instructions in the product manual.
Start the pump, conduct preliminary debugging, and check whether the pump's operating status and vacuum degree are normal.
If there is any abnormality or failure, stop the machine immediately to check and eliminate the problem.

7. Complete the installation:
After confirming that the pump is operating normally, clean the installation site and store tools and excess parts properly.
Fill in the installation record, including installation time, personnel, materials used and other information.

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Why choose HZPT?

1. QUALITY PRODUCTS: HZPT is committed to providing the highest quality rotary piston vacuum pumps. Our products are precision engineered and manufactured from advanced materials to ensure durability, reliability and consistent performance.

2. Comprehensive Service: We pride ourselves on providing exceptional service to our customers. Our dedicated team of professionals is ready to answer your questions, provide technical support, and provide solutions tailored to your specific needs.

3. Competitive Prices: HZPT offers competitive prices without compromising on quality. We believe in creating value for our customers and work hard to ensure that our products are competitively priced, making them suitable for every budget.

4. Excellent After-Sales Support: We know that a product is only as good as the support you receive after purchase. HZPT provides comprehensive after-sales service, including timely repairs, replacements and maintenance, ensuring your vacuum pump remains in top condition longer.

5. Wide product range: HZPT offers a wide range of vacuum pumps to meet different applications and requirements. From water ring vacuum pumps, screw vacuum pumps to slide valve vacuum pumps, we can provide you with the right products.


Edited by Czh