Discover unparalleled efficiency with the Permanent Magnet Variable Frequency Screw Type Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. Available in an extensive range of power options, including 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw, this compressor guarantees superior performance and energy savings for all your industrial needs.
| Model |
Power |
Pressure |
Free air delivery* of unit at working pressure |
Cooling System |
Working Temperature |
Voltage |
Frequency |
Noise Level |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
ºC |
V |
Hz |
dB(A) |
Inch |
Kg |
L*W*H(mm) |
| SZ08VF |
7.5 |
0.8 |
1.15 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
65 |
G3/4 |
320 |
900*700*920 |
| 1.0 |
1.00 |
| SZ11VF |
11 |
0.8 |
1.00-1.60 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
65 |
G3/4 |
330 |
900*700*920 |
| 1.0 |
0.90-1.50 |
| 1.3 |
0.82-1.20 |
| SZ15VF |
15 |
0.8 |
2.30 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
65 |
G1 |
450 |
1040*800*990 |
| 1.0 |
2.20 |
| 1.3 |
1.70 |
| SZ22VF |
22 |
0.8 |
1.00-3.60 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
65 |
G1 |
550 |
1040*800*990 |
| 1.0 |
0.90-3.00 |
| 1.3 |
0.82-2.80 |
| SZ37VF |
37 |
0.8 |
6.60 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
68 |
G1½ |
750 |
1430*1000*1300 |
| 1.0 |
6.00 |
| 1.3 |
4.80 |
| SZ45VF |
45 |
0.8 |
2.10-8.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
68 |
G1½ |
1050 |
1430*1000*1300 |
| 1.0 |
1.90-6.50 |
| 1.3 |
1.80-5.60 |
| SZ55VF |
55 |
0.8 |
10.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
72 |
G2 |
1450 |
1800*1200*1500 |
| 1.0 |
8.80 |
| 1.3 |
7.80 |
| SZ75VF |
75 |
0.8 |
3.30-13.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
72 |
G2 |
1750 |
1800*1200*1500 |
| 1.0 |
3.10-11.20 |
| 1.3 |
2.70-10.5 |
| SZ90VF |
90 |
0.8 |
16.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
72 |
G2 |
2000 |
2000*1200*1500 |
| 1.0 |
11.20 |
| 1.3 |
10.50 |
| SZ110VF |
110 |
0.8 |
5.20-20.50 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
2550 |
2500*1500*1700 |
| 1.0 |
4.90-19.00 |
| 1.3 |
4.40-16.50 |
| SZ132VF |
132 |
0.8 |
24.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
2950 |
2500*1500*1700 |
| 1.0 |
22.00 |
| 1.3 |
19.00 |
| SZ160VF |
160 |
0.8 |
7.30-29.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
3150 |
2650*1650*1800 |
| 1.0 |
6.50-26.20 |
| 1.3 |
5.30-24.50 |
| SZ185VF |
185 |
0.8 |
32.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
3500 |
2650*1650*1800 |
| 1.0 |
29.00 |
| 1.3 |
26.00 |
| SZ200VF |
200 |
0.8 |
36.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
3860 |
2650*1650*1800 |
| 1.0 |
33.00 |
| 1.3 |
29.00 |
| SZ250VF |
250 |
0.8 |
40.00 |
Air Cooling |
<Ambient temperature+15ºC |
380 |
50 |
75 |
DN80 |
3860 |
2650*1650*1800 |
| 1.0 |
36.00 |
| 1.3 |
32.00 |
| Due to product updates, the above parameters are subject to deviation in kind. |
Working Principle
A permanent magnet frequency conversion air compressor employs a sophisticated pressure sensor that instantly detects the actual operating pressure and air consumption within the system. Utilizing precise electric and frequency converter controls, it adjusts the motor speed while maintaining constant motor torque. This regulation ensures that system pressure is managed effectively, delivering compressed air precisely according to demand. When system air consumption declines, the compressor's output exceeds the system's needs, prompting the inverter to decrease motor speed and reduce compressed air output. Conversely, if air consumption rises, the motor speed increases, boosting compressed air output to maintain stable system pressure.
By leveraging advanced vector control technology, our unit operates across a wide speed range while minimizing motor temperature rise. This ensures optimal and sufficient torque to drive the air compressor seamlessly. The motor current splits into a torque component and other vector control technologies, distributing motor current values to determine the torque-generating component and other current components. Vector control techniques adeptly compensate for voltage drops at the motor end, maximizing torque output without increasing current.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High efficiency and energy saving
Frequency conversion regulation significantly reduces the actual power consumption of the compressor by matching energy use with air compression needs, resulting in effective energy application.
Cost Reducing
With permanent magnet frequency conversion technology, energy costs are slashed by over 35%, and the life cycle cost of compressors is lowered by an average of 22%. The additional investment in the compressor can be recouped within 1 to 2 years.
Steady Pressure
The PID (proportional, differential, integral) method is employed for precise adjustment, ensuring the compressor maintains stable system pressure with high accuracy.
Life Extension
Frequency conversion start-up significantly reduces the impact on the power grid and machinery, notably extending the service life of the compressor.
Top quality
Our use of top-quality imported bearings, along with the latest rotor profile developments, ensures larger rotors, greater displacement, lower speeds, and reduced noise. This combination enhances efficiency and overall production quality.
1. Unbeatable Price Advantage
We offer competitive ex-factory prices directly to our customers, ensuring you remain ahead in the market.
2. Direct Transactions
All products are supplied directly from our factory, guaranteeing you receive the most cost-effective options.
3. Comprehensive OEM & ODM Services
Our robust production and management capabilities allow us to offer tailored OEM and ODM services to meet your specific needs.
4. Personalized Customization
We cater to non-standard orders and export requirements. Customize voltage, power, pressure, and more. Contact us with your specifications.
5. Small Orders Welcomed
Place a small trial order to evaluate the superior quality of our products.
6. Swift Delivery
Enjoy top-tier products delivered promptly to meet your timelines.
7. Full Authorization for Distributors
We provide complete authorization certificates, empowering distributors to sell SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd. stands as a prestigious manufacturer specializing in the production of advanced screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our comprehensive product portfolio includes normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, specialized screw air compressors for laser cutting, single-tank and double-tank mobile screw air compressors, as well as electric and diesel mobile screw air compressors and screw vacuum pumps. Each category is meticulously engineered to meet diverse industrial needs.
In our state-of-the-art production facilities, we achieve unparalleled efficiency through meticulously organized multi-air compressor assembly lines, which are both lean and modern. Our dedicated team of over 50 employees continuously strives to enhance our management systems, such as ERP, thereby significantly reducing lead times and ensuring rapid delivery of premium-quality products.
Our commitment to excellence is underscored by our adherence to the ISO9001 quality management system certification. We rigorously implement stringent quality control processes, ensuring that every machine undergoes comprehensive inspections, including material inspection, production inspection, and pre-delivery inspection, guaranteeing superior quality and performance.
In terms of customer service, we excel in both pre-sales and after-sales support. Our expert team provides professional guidance for selecting the right air equipment for various applications, offering high levels of customization in appearance and configuration to meet specific customer requirements, including OEM solutions. Additionally, our dedicated sales and service teams are always ready to offer swift and responsive support to our customers, ensuring complete satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering exceptional and reliable products, fostering long-term relationships with our clientele. With efficient delivery, superior quality machines, and competitive pricing, we stand as your trustworthy partner in providing the ideal compressed air solutions.
Our factory is strategically located in Xinzheng City, Henan Province, China. We offer convenient pick-up services from Xinzheng International Airport to our factory, a brief 30-kilometer journey that takes approximately one hour. We warmly welcome you to visit our company and experience our hospitality firsthand!
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished and experienced manufacturer specializing in screw air compressors, boasting over a decade of expertise in the industry.
Q2. How do you control quality?
A: 1. A meticulous inspection of raw materials is conducted to ensure top-notch quality.
2. Our installation procedures are tightly regulated to maintain superior standards.
3. Every machine undergoes a rigorous testing phase of at least 5 hours of continuous operation before it leaves our factory.
Q3. What information must I provide to get the suitable machine?
1. Specify the required air delivery capacity (Unit: CFM or m³/Min).
2. Indicate the necessary working pressure (Unit: PSI, Bar, or Mpa).
3. Provide the voltage and frequency specifics of your country of residence (V/Hz).
4. Inform us if additional accessories such as an air tank, filters, and/or air dryers are needed.
Provide these details, and we will tailor a perfect solution for you!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What is the available voltage air compressor?
A: Sanzhi offers various voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with customization available to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage, expect delivery in 15 working days post order confirmation. For non-standard voltages, please consult our sales team.
Q7. What's the payment term?
A: Payment terms are as follows: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. Payments can be made in USD or RMB.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty for the entire machine and a two-year warranty specifically for the screw air compressor, excluding consumable parts.
Q9. What about the maintenance?
A: Initial maintenance is required after 500 hours of operation, followed by routine maintenance every 2000-3000 hours, considering the actual working environment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are designed to operate efficiently in high-temperature environments, with working temperatures ranging from -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Yes, we pride ourselves on our professional design team and are delighted to accommodate both OEM & ODM orders.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we provide spare parts to ensure continuous and optimal operation of your machines.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online installation and commissioning guidance, as well as the arrangement of our engineers for training and on-site installation assistance.
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