Roots Vacuum Pump



HZPT professional manufacturing

HZPT is an esteemed manufacturer and distributor specializing in the production and sale of high-quality Roots vacuum pumps. As a cornerstone in the vacuum technology market, HZPT prides itself on delivering state-of-the-art Roots vacuum pumps tailored for a wide array of industrial applications, including but not limited to, semiconductor manufacturing, pharmaceutical processes, environmental engineering, and chemical processing.

Our company is committed to innovation and excellence. Each Roots we produce embodies decades of engineering expertise, incorporating advanced design features that ensure reliability, efficiency, and superior performance under the most demanding conditions. At HZPT, we understand that our clients rely on our vacuum technology to maintain critical processes and operations. Thus, we dedicate ourselves to providing not just products but solutions that enhance productivity, minimize downtime, and offer significant operational savings.

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

Roots Vacuum Pump For Sale

ep-roots-vacuum-pump-10 (2)

Roots vacuum pump

The advantages of Roots vacuum pump compared with other vacuum pumps

Feature Roots Vacuum Pump Rotary Vane Vacuum Pump Liquid Ring Vacuum Pump Diaphragm Vacuum Pump
Operating Principle Operates by two rotors rotating in opposite directions without contacting each other or the pump casing. Utilizes a rotating vane inside a chamber to create vacuum. Uses a rotating impeller within a ring of liquid to create vacuum. Relies on the flexing of a diaphragm to create vacuum.
Vacuum Level Capable of achieving high vacuum levels, especially when used in series with other pumps. Can achieve moderate to high vacuum levels. Typically limited to lower vacuum levels due to the vapor pressure of the sealing liquid. Generally achieves lower vacuum levels compared to other types.
Pumping Speed High pumping speeds over a wide range of pressures. Variable pumping speed, depending on the specific design and application. Moderate pumping speeds, limited by liquid dynamics. Lower pumping speeds, suitable for smaller or more precise applications.
Oil-Free Operation Oil-free in the pumping chamber, which reduces contamination risk. Often requires oil lubrication, which can lead to contamination. Can handle wet or humid processes but may introduce water vapor into the system. Oil-free operation, minimizing contamination risk.
Maintenance Relatively low maintenance due to the lack of internal friction and wear parts. Requires regular maintenance for oil changes and vane replacement. Needs maintenance to manage the liquid seal and potential erosion. Typically low maintenance but diaphragms may need periodic replacement.
Noise Level Generally quieter operation due to the absence of metal-to-metal contact. Can be noisy due to mechanical action and oil mist exhaust. Noise level varies but is generally moderate, with liquid handling noise. Usually quiet operation, suitable for laboratory environments.
Applications Ideal for applications requiring fast pump-down times or handling large volumes of gas. Widely used in various applications but may introduce oil contamination. Suited for environments where liquid handling is not an issue, such as wet processes. Preferred in applications requiring clean, oil-free vacuum.


Roots vacuum pump features

1. High Pumping Speeds
Efficient at Low and Medium Vacuum Ranges: Root vacuum pumps can achieve high pumping speeds over a wide pressure range, making them highly efficient, especially in the low and medium vacuum regions.

2. Dry Pumping Mechanism
Oil-Free Operation: Unlike other vacuum pump types, Roots pumps operate without oil in the pumping chamber, eliminating the risk of oil contamination in the processed gases or the environment.

3. Versatility
Broad Application Range: These pumps are used in various applications, including industrial, chemical processing, semiconductor manufacturing, and more, due to their ability to handle different gases, including those that are corrosive or contain particulate matter.

4. Low Maintenance
Minimal Wear: Since the rotors do not come into contact with the pump casing or each other, wear is significantly reduced, leading to lower maintenance requirements and longer service life.

5. Operational Advantages
Consistent Performance: Roots pumps' design allows for a consistent vacuum and flow rate, providing stable performance across their operational range.

6. Boosting Capability: This type of vacuum pump is often used in combination with other types (e.g., rotary vane or liquid ring pumps) to enhance performance, increase vacuum levels, and improve pumping speeds.

7. Reliability
Robust Construction: Roots vacuum pumps are known for their durability and reliability. They are capable of continuous operation under demanding conditions.

8. Environmental Benefits
Eco-Friendly: Roots pumps' oil-free operation makes them an environmentally friendly choice, reducing the need for oil disposal and preventing potential contamination.

9. Noise and Vibration
Quieter Operation: Roots pumps generate less noise and vibration than other high-speed vacuum pumps, contributing to a more pleasant working environment.


How Roots vacuum pump works

Roots vacuum pump, its working principle is based on two relatively rotating figure 8 rotors making synchronous rotation in the pump chamber. During the rotation process, the two rotors maintain a certain gap between each other and between them and the inner wall of the pump casing, thereby forming one or more working chambers.

As the rotor rotates, the volumes of these working chambers change periodically. When the working chamber communicates with the air inlet, the gas is sucked in and carried by the rotor to rotate to the exhaust port. During this process, due to the continuous rotation of the rotor, the gas is compressed and discharged from the exhaust port, thereby achieving the purpose of vacuum extraction.

Roots vacuum pumps have certain requirements on the composition of the pumped gas. For gases containing a large amount of condensable vapor, dust or particles, the Roots vacuum pump may not work effectively and may even cause equipment damage. Therefore, when selecting and using a Roots vacuum pump, the composition and characteristics of the gas need to be fully considered.

Roots vacuum pump main application areas

1. Semiconductor and electronic equipment manufacturing: In the semiconductor production process, a highly clean and vacuum environment is required to prevent impurities from affecting product quality. Roots vacuum pumps can provide a stable vacuum environment to meet the needs of precision manufacturing.

2. Scientific research and laboratory applications: In scientific laboratories, Roots vacuum pumps are often used for experiments and research that require a high vacuum environment, such as research in the fields of materials science, physics, and chemistry.

3. Vacuum metallurgy and vacuum heat treatment: During metallurgy and heat treatment, Roots vacuum pumps can create the required vacuum conditions to remove gases and impurities and improve product quality.

4. Vacuum coating and coating technology: During the manufacturing process, Roots vacuum pumps are used to provide a vacuum environment to support the application of coating and coating technology, such as optical films, metal coatings, etc.

5. Medicine and biotechnology: In the fields of medicine and biotechnology, Roots vacuum pumps are used in manufacturing and research and development processes that require a vacuum environment, such as drug drying, vacuum sterilization, etc.

6. Food processing and packaging: Roots vacuum pumps can be used for vacuum dehydration and vacuum packaging in food processing to extend the shelf life of food and improve product quality.

ep-roots-vacuum-pump-11 (2)

Proper operation of Roots vacuum pump

1. Preparation

Make sure the working environment of the pump is clean and tidy, away from dust and debris.
Check the pump oil level to make sure it is within the recommended range.
Check whether the power connection is secure and whether the voltage meets the requirements of the pump.
Check whether the pump inlet and outlet valves are in the correct position.

2. Start

Open the pump inlet and outlet valves.
Turn on the power and start the pump.
Observe the operating status of the pump to ensure there are no abnormal sounds or vibrations.

3. Operation monitoring

Regularly check the pump oil level and oil temperature to ensure they are within the normal range.
Monitor the pumping speed and vacuum degree to ensure that process requirements are met.
Pay attention to the exhaust port of the pump to make sure there is no abnormal smoke or odor.

4. Shutdown

When shutdown is required, first close the pump inlet valve.
Let the pump continue to run for a while to remove any residual gas from the pump.
Turn off the power and stop the pump.
Close the pump outlet valve.

5. Precautions

Avoid dismantling or servicing the pump while it is operating.
Do not use the pump in operating conditions beyond its design capabilities.
If the pump is running abnormally, stop it immediately for inspection and contact professionals for repair.


Technical development trends of Roots vacuum pump

1. High efficiency and low power consumption: With the increasing awareness of energy conservation and environmental protection, improving the pumping efficiency of Roots vacuum pumps and reducing energy consumption have become important development directions. By optimizing the pump's structural design, using new materials and advanced manufacturing processes, and applying intelligent control technology, the pump's performance can be effectively improved, and energy consumption reduced.

2. High vacuum and wide range: Roots vacuum pumps continue to improve their ultimate vacuum while maintaining high pumping speed to meet the demand for high vacuum and wide range vacuum in more fields. At the same time, they can achieve a wider range of vacuum extraction by combining with other types of vacuum pumps (such as molecular pumps, diffusion pumps, etc.).

3. Intelligence and automation: With the development of technologies such as the Internet of Things, big data, and artificial intelligence, the level of intelligence and automation of Roots vacuum pumps continues to improve. By integrating sensors, control systems, and communication modules, functions such as remote monitoring, fault diagnosis, and automatic adjustment can be realized to improve the reliability and ease of use of the equipment.

4. Modularization and standardization: Roots vacuum pumps have become a trend in modular design to meet the customized needs of different users and improve production efficiency. By modularly splitting different pump parts, pumps with different specifications and performance can be easily combined. At the same time, promoting the standardization process of pumps will also help reduce manufacturing costs and promote industry development.

5. Environmental protection and green manufacturing: As environmental regulations become increasingly stringent, the ecological performance of Roots vacuum pumps has also received more and more attention. Using environmentally friendly materials and processes, reducing the emission of waste gas, wastewater, and solid waste, and realizing pump recycling and reuse are all essential directions for the future development of Roots vacuum pumps.


The main components and functions of Roots vacuum pump

1. Rotor (Roots lobes): The core component of Roots vacuum pump, usually composed of two figure-8 or similar shaped rotors. The two rotors rotate synchronously and in opposite directions in the pump chamber. As the rotors rotate, the space between them continues to change, completing the processes of suction, compression, and exhaust.

2. Pump chamber: The space that accommodates the rotor, forming a working area where gas is sucked, compressed and discharged. The design of the pump chamber optimizes the flow path of gas and improves pumping efficiency.

3. Air inlet and exhaust port: The air inlet allows gas to enter the pump chamber, while the exhaust port is used to discharge the compressed gas. The location and size of these two ports are carefully designed to ensure smooth flow of gas in and out.

4. and bearings: Gears are used to drive the rotor to rotate, while bearings support the rotor and provide a stable rotation environment. The accuracy and durability of these components are critical to pump performance and service life.

5. Seals: ensure that the gas in the pump chamber will not leak to the outside and prevent external gas from entering the pump chamber. The quality and performance of seals are critical to maintaining high vacuum levels in the pump.

6. Cooling system: used to control the heat generated by the pump during operation to ensure stable operation of the pump. Cooling systems may include heat sinks, fans, or liquid cooling devices.

7. Control system: Modern Roots vacuum pumps are usually equipped with a control system for monitoring the operating status of the pump, adjusting operating parameters and achieving automated control.

ep-roots-vacuum-pump-12 (2)

Roots vacuum pump installation and maintenance


1. Site selection and preparation: Choose a dry, well-ventilated place away from vibration sources as the installation location of the pump. Make sure the pump is installed on a solid and stable foundation to reduce vibration and noise during operation.

2. Install the pump body: Place the pump body smoothly on the foundation, and use a level to adjust the level of the pump body. Ensure that the contact surface between the pump body and the foundation is evenly stressed to avoid local stress.

3. Connecting pipelines: According to the size and location of the inlet and outlet of the pump, reasonably arrange and connect the intake pipe, exhaust pipe and other related pipelines. Make sure the pipeline connections are firm and well sealed to avoid gas leakage.

4. Electrical connection: Make the electrical connection according to the electrical wiring diagram of the pump, and ensure that the power cord and control wire are connected correctly and firmly. Pay attention to check whether the power supply voltage meets the requirements of the pump to avoid damage to the pump due to too high or too low voltage.

5. Trial operation: After installation is completed, perform a trial operation on the pump. Check whether the pump is running smoothly and without abnormal noise or vibration. Observe whether the pumping speed and vacuum degree of the pump meet the requirements. If there are any abnormalities, stop the pump for inspection in time.


1. Regular cleaning: Clean the outside and inside of the pump regularly to remove accumulated dust, oil and other debris. Use a clean cloth or vacuum cleaner for cleaning, and avoid using water or other liquids to clean the pump body directly.

2. Check the seals: Regularly check whether the pump seals (such as O-rings, gaskets, etc.) are intact and not damaged. If the seal is found to be worn or aged, it should be replaced in time to ensure the sealing performance of the pump.

3. Replace the lubricating oil: Change the lubricating oil of the pump regularly according to the usage of the pump. Make sure to use lubricating oil that meets the requirements of the pump and fill it with the specified amount of oil. When replacing lubricating oil, the oil pool and filter should be cleaned at the same time to ensure smooth oil passage.

4. Check bearings and gears: Regularly check the pump's bearings and gears for wear or looseness. If there is any problem, it should be repaired or replaced in time to ensure the normal operation of the pump.

5. Record maintenance information: After each maintenance, the date, content, replaced parts and other information of the maintenance should be recorded for future review and reference.


Why choose HZPT?

1. QUALITY PRODUCTS: HZPT is committed to providing the highest quality Roots vacuum pump. 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 pumpsscrew vacuum pumps to slide valve vacuum pumps, we can provide you with the right products.