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Three Phase Screw Air Compressor
The MZB-XXA Series was designed to serve from basic to very demanding air supply needs through a multitude of available configurations.
Industrial Use Screw Air Compressor
The MZB-XXA Series was designed to serve from basic to very demanding air supply needs through a multitude of available configurations.
The MZB-XXA Series was designed to serve from basic to very demanding air supply needs through a multitude of available configurations.
The MZB-XXA Series was designed to serve from basic to very demanding air supply needs through a multitude of available configurations.
What Is Rotary Screw Air Compressor?
A rotary screw compressor is a type of air compressor that uses two rotating screws (also known as rotors) to produce compressed air. Rotary screw air compressors are clean, quiet and more efficient than other compressor types. They are also supremely reliable, even when used continuously.
Functions under extreme conditions: Whether you work indoors or out, rotary screw compressors provide the functions you need. They work in high and low temperatures, pressurizing air regardless of many extreme environmental conditions.
Has high efficiency: Rotary screw air compressors are more efficient than other systems. They conserve more energy by producing less heat and having an efficient design. Rotary screw compressors also use less oil than other compressors. You then save money on power and oil costs with this machinery.
Provides more power: A rotary screw air compressor is efficient, but it also puts out more power for your operations. High airflow rates allow this machinery to run equipment and tools with high horsepower.
Provides a safe power option: Some industries and work environments have strict requirements for powering equipment. Whether temperature or safety is a concern, rotary screw air compressors can operate under those requirements.
Comes in various options: As you'll see, there are many types of rotary screw compressors. That makes this machinery useful for countless industries and facilities, large or small. It'll be easy to find the specs you need for your particular operations.
Is simple to maintain: Rotary screw air compressors can have up to 70% fewer parts. You'll keep your maintenance costs low because there won't be excessive small parts to maintain or replace.
The Main Components Of Industrial Screw Air Compressors
Inlet Valve – The suction valve that introduces dry air into the combustion chamber.
Outlet Valve – The valve that supplies compressed air to a system or process.
Compression Chamber – Where air compression occurs; also called an "air-end."
Air Filter – Present in oil-injected compressors, air filters separate moisture and oil residue from the compressed air to produce dry air at the outlet valve.
Oil Filter – Oil filters purify oil in the system to prevent contaminants and unwanted build-up of residue. They also provide lubrication to machine parts for smooth operation.
Oil Separator – Oil separators help to remove residual oil/grease from compressed air.
Rotors/Rollers – The main compression mechanism consists of mating screws with multiple lobes.
Bearings – Bearings help to minimize the force of friction between the meshing screws, ensuring more durable operation and greater efficiency.
Applications of Rotary Screw Compressors
Oil & Gas
In the oil and gas industry, screw-type air compressors are used for gas lift (secondary oil recovery), where high-pressure gas is injected into the surrounding formation to ramp up the production of hydrocarbons. Other applications include pipeline maintenance services, equipment purging, and gas pipeline pigging.
Manufacturing
In manufacturing facilities such as automobile assembly, pharmaceutical, and chemical plants, operators use screw air compressors to operate compression-powered tools such as pneumatic drills and hydraulic tools. Other applications include equipment cleaning and general maintenance.
Food Packaging
In food manufacturing plants, screw-type compressors provide compressed air to operate blow molding machines for food packaging. They are also used in gas flushing food packaging, product sorting, and shaping. Oil-free screw air compressors are preferable for food-grade applications.
Construction
In the construction industry, rotary screw compressors provide high-pressure air for operating heavy-duty tools such as jack-hammers, pneumatic tools, and sandblasters. Compressed air is also required in slurry blowing, blowing of mud/wash holes, and building piling operations.
Agriculture
Heavy agricultural equipment like tractors, pumps, sprayers, and crop conveyors can all be powered by rotary air compressors. In addition to traditional farms, they are also used on dairy farms and greenhouses.
Energy
Oil drilling in oil rigs has found rotary air compressors particularly useful. In order to keep the crew safe and protected, dependable equipment is necessary for these operations. Their spark-free delivery and stable outputs are very desirable in processes as delicate and isolated as oil rigs.
Rotary Screw Air Compressor Components
Airend: This part is the heart of the air compressor and the site of compression. This component has an inlet valve to combine air with oil throughout the compression process.
Air filter: It is essential to filter the air before it reaches the inlet valve. Air compressors must mount to the compressor or connect with a hose. Look for the area with the cleanest, coolest air and place the filter there for the best results.
Primary separation tank: Compressed air mixes with compressor oil as it travels from the airend. The primary separation tank allows the first round of filtration to occur. Mechanical separation and centrifugal force work to form oil droplets, which then fall to the bottom, allowing the tank to become an oil reservoir.
Secondary separation filter: Compressed air needs additional filtration to become completely clean. The remaining oil and air mixtures go through the secondary separation filter. Here, filters catch the oil and direct it back to the central oil system. Air leaving this filter will be free of oil.
Oil filter: This component's job is to gather loose particles from the oil collection. You can place an oil filter at one of the various intervals on the compressor loop.
Oil cooler: The air compression process produces a significant amount of heat, which can cause oil to get very hot. The fluid must go through a cooler to shed some of that heat before cycling into the compressor again. Some rotary compressors use an air-to-liquid cooler, while others use a liquid-to-liquid cooler.
Hoses: Hoses must meet the chemical, heat and pressure specifications of the oil you use to avoid causing excess wear and tear or hose failure. These failures can be incredibly dangerous and could result in repairing or replacing the unit.
Airend: Airend damage can occur due to air contamination or excessive heat and lubricants. Pay close attention to any unusual sounds or vibrations to catch damage early. Manufacturers often suggest rebuilding airends around the 50,000- or 60,000-hour mark of run time to prevent sudden breakdowns.
Motor bearings: Proper lubrication will allow the motor bearing to provide a long, efficient service life. Still, you must replace the bearings more often than other components to ensure longevity. Ensure the motor doesn't experience overloading by checking the amperage draw regularly.
Drive train systems: Misalignment can cause unnecessary damage to your unit, which is a significant concern in drive train systems. Therefore, you must inspect V-belts and potentially adjust them after roughly 500 hours. You must also replace any belt that shows signs of wear, including fraying.
Lubricants: Lubricants provide the cooling, sealing and protectant your compressor needs. Follow the manufacturer's instructions for specific lubrication applications and when to change the oil. Only use specified lubricants for your model, and always drain old fluid from the system before refilling the unit.
Filters: Implementing adequate filtration is much more cost-effective than paying for repairs when equipment suffers damage due to contaminated air. Inspect the inlet filters often and replace them when needed, generally around every 2,000 hours.
Types of Rotary Screw Air Compressors
Base-mounted: Base-mounted rotary screw compressors are standalone units. They provide a constant flow of compressed air and work well in locations with minimal space.
Tank-mounted: Tank-mounted rotary screw compressors mount to the air receiver tank, which stores compressed air.
Total air systems: Total air systems save space and purify air. These qualities combine the features of base- and tank-mounted air compressors.
Variable speed: Variable speed rotary screw compressors have motor control drives. Those drives regulate the speed of the system, and you can change it based on your needs to improve energy efficiency.
The oil injected rotary screw air compressor is a versatile industrial machinery that efficiently converts power into compressed air through a continuous rotary motion. Commonly known as a twin-screw compressor , this type of compressor consists of two rotors, each featuring a set of helical lobes attached to a shaft. One rotor is called the male rotor and the other rotor is the female rotor. The number of lobes on the male rotor, and the number of flutes on the female, will vary from one compressor manufacturer to another. However, the female rotor will always have numerically more valleys (flutes) than the male rotor lobes for better efficiency. Male lobe acts like a continuous piston rolling down the female flute which acts like a cylinder trapping air and reducing space continuously.
Less Moving Parts
A rotary air compressor is not comprised of many moving parts. This is due to the advanced technologies used for producing compressed air. The reduced number of parts call for more efficiency and productivity of the compressor.
Easy Maintenance and Durability
When we talk about rotary air compressors, we always talk of durability. Having said this, this kind of air compressor requires very little maintenance and the lifespan on these air compressors is more. The most important feature of a rotary air compressor is that it can easily stay five to six years more than its other counterparts. Most of the parts of the rotary air compressor comes with a lifespan of ten years and that is an added advantage to this machine.
Low Level of Noise
Industries where already a lot of noises are prevailing, an air compressor which produces low level of noise is always welcome. As compared to other air compressors, rotary air compressor produces less noise and thus, the workers are spared of bearing heavy noises all around.
Minimum Oil Carryover
There is oiled and non-oiled air compressor but when you pick up the oiled rotary air compressor, the oil carryover is minimum. Less oil means less of mess and it is easy to maintain.
Lighter and Portable
Rotary air compressors are ideal for the industries where it needs to be transferred from one place to another. Rotary air compressors are light in weight and they are easily portable.
Our Factory
Wenling Daxi Xinfeng Electric Appliance Factory founded in 1995, underwent three innovations including the establishment of Taizhou Meizhoubao Air Compressor Manufacturing Co., Ltd. in 2003, and its name change to Zhejiang Meizhoubao Industrial & Commercial Co., Ltd. in 2005. In October 2021, it took equity as the Link separated its subsidiaries from production and sales, and established Zhejiang Meizhoubao Holding Group, which opened a new course of development.
FAQ
Q: How long will a rotary screw compressor last?
Q: How often should a screw compressor be serviced?
Regular air compressor servicing is the key to maintaining reliability, performance and longevity – but how regularly does it need to be performed? Following best practices set by most manufacturers, air compressors should be serviced annually or every 2,000 hours – whichever one comes first.
Q: Are rotary screw air compressors better?
Q: Why use rotary screw air compressor?
Q: How do you size a rotary screw air compressor?
Q: Who uses rotary screw air compressors?
These can be found in manufacturing or food packaging plants. Smaller rotary screw air compressors are often turned into mobile units. They are a great fit for construction sites or mining operations in remote locations.
Q: What is the advantage of a screw air compressor?
Q: Are rotary screw air compressors quiet?
Q: Why is it called screw compressor?
Q: What type of air compressor is a rotary screw?
Q: What is the duty cycle of a rotary screw air compressor?
Q: What is the life expectancy of a rotary screw compressor?
Oil-flooded rotary screw compressors: These compressors can last for up to 100,000 hours with proper care and maintenance, or up to ~20 years. With proper preventive maintenance, including regular oil changes, filter replacement, and inspections, they can last even longer.
Q: What is the pressure range of a rotary screw compressor?
Q: How do you size a rotary screw air compressor?
Q: How do I choose a screw compressor?
First of all, you need to check how much compressed air you need at the point of use. If you have several connections that use compressed air, it is important whether these are in operation at different times or all need to be able to run simultaneously.
Q: What is the duty cycle of a rotary screw air compressor?
Q: What type of air compressor is a rotary screw?
Q: What is the pressure range for a screw compressor?
Q: How do you calculate the efficiency of a rotary screw compressor?
The calculation is (total package KW x 100)/ CFM. The lower the specific power, the more efficient the package. Using specific power for comparison works perfectly if the compressors have the same full load pressure rating.
Q: What is the maximum rpm of a screw compressor?
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