Product Description

Wholesale price Permanent magnet VSD variable speed silent rotary screw comparable air compressor

PM VSD Screw Air Compressor
Permanent magnet use high-strength NdFeB (neodymium iron boron) magnetic steel, high magnetic energy product and connectivity of NdFeB magnetic steel, make rare-earth permanent magnet motor have small size , lightweight , high efficient, good character etc

Advantages:
The permanent magnet motor remains high efficiency at low speeds, ensuring obvious energy-saving advantages in small air volume
-Frequency range from 0%-100%(common conversion from 60%-100%)D
-Compared with the fixed speed compressor, energy saving 22%-40%
-Compared with the common inverter compressor, energy saving 5%-15%
System volume fluctuations larger, the energy-saving effect more obvious.

Product Specification

Wholesale price Permanent magnet VSD variable speed silent rotary screw comparable air compressor

Two-Stage Two Drive Series Technical Parameters(VSD)

Model Number	MQ-90DA
Capacity	18.5-23.5m3/min
Motor Power	90kw
Dimensions(mm)	2900*1650*1850
Weight	2680kg
Air Outlet Pipe Diamater	DN80

 

Product Details

Unique air end

Two IPM motors,two-stage screw,gearless
More stable,more energy saving,more efficiency
SK bearing
It has the advantages of withstanding higher loads, having lower noise, greatly reducing operating costs, and increasing machine reliability

 

No transmission trouble
TRSLPM running under the top efficiency all time
High efficiencylPM motor + “0”transmission loss
Low running noise

Microcomputer intelligent control air compressor dischargepressure,exhaust gas temperature, engine speed, oil pressure,water temperature and fuel tank level operating parameterswith automatic alarm and shutdown protection.

Multi-language display
Personalized Control System
Easy to operate,can work for you 24 hours without anyone on duty

 

Product Parameters

Permanent magnet screw air compressor
Single-Stage Series Technical Parameters(VSD)
 

Model	Power(Kw)	Free air delivery(m3/min)				Weight(kg)	size(mm)			Pipe Diamater
		0.6Mpa	0.7MPa	0.8MPa	1.0MPa		length	width	height
MQ7.5A	7.5	1.31	1.13	1.11	0.92	195	900	620	1080	G3/4
MQ11A	11	2.17	1.74	1.7	1.45	375	1000	800	1250	G1
MQ15A	15	2.89	2.29	2.21	1.96	385	1000	800	1250	G1
MQ22A	22	4.08	3.76	3.69	3.09	460	1110	860	1310	G1 1/4
MQ30A	30	6.18	5.72	5.39	4.68	600	1300	960	1500	G1 1/2
MQ37A	37	7.45	6.87	6.65	5.67	690	1300	960	1500	G1 1/2
MQ45A	45	9.27	8.78	8.46	7.39	830	1430	1000	1560	G1 1/2
MQ55A	55	11.65	10	9.9	8.54	995	1450	1100	1600	G2
MQ75A	75	14.37	13.35	13.25	11.77	1330	2000	1280	1630	DN50
MQ90A	90	19.11	17.72	16.31	14.08	1810	2300	1630	1950	DN65
MQ110A	110	21.92	20.12	20.05	16.65	1850	2300	1630	1950	DN65
MQ132A	132	27.01	23.73	23.54	20.85	2090	2300	1630	1950	DN65

 

Applications

 

 

Company Profile

Established in 2012,Muqi Air Compressor Co.,Ltd is a manufacturer which specialized in  R&D, design,produce,sale and after-sales service of air compressor.We are located in HangZhou city, ZheJiang province. With the convenient transportation , you are welcomed to visit us at anytime.
 

As 1 of compressor experts in north of China,Muqi has a complete production line,that is we have nearly all kinds of air compressor,such as screw compressor,portable air compressor,industrial air compressor,rotary compressor,oil-less air compressor,two stage air compressor,permanent magnet variable speed/frequency air compressor,energy save air compressor,variable flow air compressor,permanent magnet synchronous compressor,etc.They are widely used in machinery, light industry, textile, food, petroleum, chemical industry, metallurgy, mining, electric power, urban construction, medical research and national defense research and other industries.
About our team,we have R&D department with 15 engineers and technicians,we can offer the solutions for your specific requirements,not only for different voltage(V) and frequency(Hz),besides,there are sales department,production department,QC department,logistic department.All departments cooperate together to make sure to delivery on time and qualified.

Certifications

 

Air compressor service

 

1. After-sale Service
   • Any questions or requests before, during or after sales, we would like to help you any time and will find you the best solution in 24 hours.
   • Warranty: One year for the whole machine 2 year for air end , and spare parts will be provided with best price.
2. Special Customized Service
     1) Full OEM
   • Quantity: at least 5 pcs
   • In this plan, we will do all the changes (Color, name plate and logo) as your need, and will not charge extra fee.
     2) Half OEM
   • Quantity: no limit
   • Under this program, we can make the necessary alteration (name plate and logo) but we will charge some extra fee for the name plate, as the name plate factory has the MOQ.
    3) Logo OEM
     • Quantity: no limit
   • Only the logo will be changed to yours, and no extra fee will be charged

FAQ

1. Q:Our voltage is different from China,can we use your air compressor?

          A:Sure,voltage and color are customizable,380V/3Ph/50HZ/60HZ, 220V/3Ph/50HZ/60HZ,  440V/3Ph/50HZ/60HZ, 415V/3Ph/50HZ/60HZ or as your required.
 

    2.Q:What’s the warranty terms of your screw air compressor?

       A: 1 year
 

   3.Q: What service will u provide if there is problem during the warranty?

      A:We have after-sales service team.During the warranty period, we will provide free parts replacement and technical guidance no matter what model of air compressor.
 

  4.Q:Can you accept OEM orders?

     A: Yes, with a professional design team, OEM orders are very welcome.
 

  5.Q:What’s your delivery time?

     A: Usually,380V 50HZ we can ship within 7-15 days. Other electric or other colors we will ship within 25-30 days
 

  6.Q: what’s your payment term?
     A: Generally,it’s T/T. Also we could accept USD, RMB, Euro and other currency
 

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How Do You Select the Right Size Screw Compressor for Your Needs?

Choosing the right size screw compressor is crucial to ensure optimal performance, energy efficiency, and cost-effectiveness for your specific compressed air or gas requirements. Here’s a detailed explanation of the selection process:

Selecting the right size screw compressor involves considering several key factors:

• 1. Air or Gas Demand: Determine your compressed air or gas demand by assessing the total required flow rate (measured in cubic feet per minute or liters per second) and the operating pressure (measured in pounds per square inch or bar). This information helps establish the compressor’s capacity requirements.
• 2. Duty Cycle: Evaluate your operation’s duty cycle, which refers to the percentage of time the compressor will be running. Duty cycles can vary from continuous operation to intermittent or seasonal usage. The duty cycle affects the compressor’s sizing, as it determines the required compressor output and influences the compressor’s cooling and maintenance needs.
• 3. Ambient Conditions: Consider the environmental conditions in which the compressor will operate. Factors such as temperature, humidity, and altitude can impact the compressor’s performance and cooling requirements. Ensure that the selected compressor is suitable for the specific ambient conditions of your facility.
• 4. System Pressure Requirements: Determine the minimum and maximum operating pressure requirements for your application. This information is essential in selecting a compressor that can consistently deliver the required pressure range throughout its operating range.
• 5. Efficiency Considerations: Evaluate the energy efficiency of different compressor models. Look for compressors with high energy efficiency ratings, such as those certified by organizations like the Air Compressor and Gas Association (CAGI) or ENERGY STAR. Energy-efficient compressors can significantly reduce operating costs over the equipment’s lifespan.
• 6. Future Expansion: Consider any anticipated growth or changes in your compressed air or gas demand. If you expect increased demand in the future, it’s advisable to select a compressor with some extra capacity to accommodate future expansion without requiring immediate replacement.
• 7. Maintenance and Serviceability: Assess the maintenance requirements and serviceability of different compressor models. Look for features that make routine maintenance tasks, such as filter changes or oil checks, easily accessible and convenient. Consider the availability of service technicians and spare parts for the chosen compressor brand or model.
• 8. Manufacturer and Supplier Support: Research the reputation and track record of compressor manufacturers and suppliers. Choose established brands known for producing reliable, high-quality equipment. Consider factors such as warranty coverage, technical support availability, and the proximity of service centers.

Once you have gathered the necessary information and considered the factors mentioned above, you can consult with compressor manufacturers or suppliers who can provide expert advice and assist in selecting the right size screw compressor for your specific needs. They can perform detailed calculations, taking into account the factors discussed, to recommend a compressor that matches your requirements and provides optimal performance.

It’s important to note that selecting the right size screw compressor is a critical decision, and professional guidance is highly recommended to ensure an accurate assessment and proper matching of the compressor to your specific needs.

In summary, selecting the right size screw compressor involves assessing your compressed air or gas demand, duty cycle, ambient conditions, pressure requirements, efficiency considerations, future expansion plans, maintenance requirements, and manufacturer support. By considering these factors and seeking expert advice, you can choose a screw compressor that meets your needs and delivers reliable, efficient performance.

What Is the Impact of Ambient Temperature on Screw Compressor Performance?

Ambient temperature has a significant impact on the performance of screw compressors. Here’s a detailed explanation:

Screw compressors, like other types of compressors, rely on the surrounding environment to dissipate heat and maintain optimal operating conditions. The ambient temperature directly affects the compressor’s efficiency, capacity, power consumption, and overall performance.

Here are the key ways in which ambient temperature influences screw compressor performance:

1. Cooling Efficiency:

The cooling efficiency of a screw compressor is affected by the temperature difference between the compressed gas and the ambient air. As the ambient temperature increases, the temperature difference decreases, making it more challenging to transfer heat effectively. This can lead to higher discharge temperatures and reduced cooling efficiency, potentially impacting the compressor’s overall capacity and performance.

2. Capacity and Power Consumption:

Higher ambient temperatures can decrease the capacity of a screw compressor. Compressors are typically designed and rated based on specific operating conditions, including a defined ambient temperature range. When the ambient temperature exceeds the design limits, the compressor may experience reduced volumetric efficiency, resulting in a decrease in its overall capacity. Additionally, the compressor may require more power to maintain the desired pressure levels, leading to increased power consumption.

3. Heat Recovery:

In some applications, screw compressors are equipped with heat recovery systems to utilize the waste heat generated during compression. The effectiveness of heat recovery is influenced by the ambient temperature. Higher ambient temperatures can reduce the temperature differential available for heat exchange, limiting the potential for heat recovery and decreasing the overall system efficiency.

4. Lubrication and Cooling:

Screw compressors rely on lubrication systems to reduce friction and prevent wear between moving parts. The ambient temperature affects the performance of the lubricant. In high ambient temperatures, the lubricant may experience decreased viscosity, potentially leading to inadequate lubrication and increased wear on compressor components. Similarly, the cooling system of the compressor, including fans and heat exchangers, may be less effective in higher ambient temperatures, impacting the compressor’s ability to dissipate heat.

5. Operating Envelope:

Screw compressors have specified operating envelopes, which define the acceptable range of operating conditions, including ambient temperature. Operating the compressor outside its designed ambient temperature range can result in reduced reliability, increased maintenance requirements, and potential system failures. It is crucial to adhere to the manufacturer’s guidelines and ensure that the compressor operates within the recommended ambient temperature limits.

6. Control and Protection:

Modern screw compressors often feature advanced control and protection systems that monitor various parameters, including ambient temperature. These systems may adjust compressor operation, such as modulation of capacity or cooling strategies, to optimize performance and protect the compressor from operating outside safe limits. Understanding the impact of ambient temperature allows for appropriate adjustments and settings to maintain reliable and efficient compressor operation.

It’s important to note that different compressor models and manufacturers may have specific performance characteristics and operating limits. Therefore, consulting the manufacturer’s documentation and guidelines for the particular screw compressor in use is essential.

In summary, ambient temperature significantly affects the performance of screw compressors. Higher ambient temperatures can reduce cooling efficiency, decrease compressor capacity, increase power consumption, and impact lubrication and cooling systems. Adhering to recommended operating conditions and considering ambient temperature limitations are crucial for ensuring optimal performance, reliability, and longevity of screw compressors.

What Are the Advantages of Using a Screw Compressor?

Using a screw compressor offers several advantages in various applications. Here’s a detailed explanation:

High Efficiency:

Screw compressors are known for their high efficiency in converting electrical power into compressed air or gas. The rotary positive displacement design of screw compressors allows them to deliver a large volume of compressed air or gas with minimal energy loss. This high efficiency results in cost savings and reduced energy consumption compared to other types of compressors.

Continuous Operation:

One of the key advantages of screw compressors is their ability to provide a continuous flow of compressed air or gas. The interlocking helical rotors ensure a smooth and continuous compression process without pulsations. This feature is particularly beneficial in applications that require a steady and reliable source of compressed air, such as in manufacturing plants and industrial processes.

Compact Design:

Screw compressors are known for their compact design, which allows for space-saving installation. They have a relatively small footprint compared to other types of compressors, making them suitable for applications where space is limited. The compact design also facilitates ease of installation and integration into existing systems.

Low Vibration and Noise Levels:

Screw compressors are designed to operate with low vibration levels, resulting in smooth and quiet operation. The interlocking rotors and balanced design help in minimizing vibrations, reducing the need for additional vibration isolation measures. The low noise levels make screw compressors suitable for applications where noise reduction is important, such as in office environments or noise-sensitive industrial settings.

Wide Range of Capacities:

Screw compressors are available in a wide range of capacities, allowing for flexibility in meeting different compressed air or gas requirements. Whether it’s a small-scale application or a large industrial process, there are screw compressors available to match the specific capacity needs. This versatility makes screw compressors suitable for a variety of industries and applications.

Oil-Injected and Oil-Free Options:

Screw compressors are offered in both oil-injected and oil-free variants, providing options to meet different application requirements. Oil-injected screw compressors use lubricating oil for cooling, sealing, and reducing friction between the rotors. They are commonly used in industrial applications where a small amount of oil in the compressed air is acceptable. Oil-free screw compressors, on the other hand, eliminate the need for oil and provide contaminant-free compressed air. They are preferred in industries such as food and beverage, pharmaceuticals, and electronics, where oil-free air is critical.

Overall, using a screw compressor offers advantages such as high efficiency, continuous operation, compact design, low vibration and noise levels, capacity flexibility, and options for oil-injected or oil-free operation. These benefits make screw compressors a popular choice in various industries for a wide range of applications.

editor by lmc 2024-11-19