Discover the unparalleled efficiency and power of our Permanent Magnet Variable Frequency Screw Type Air Compressor. Available in a comprehensive range of power options-7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw-this industrial-grade solution is engineered to meet the diverse demands of your operations. Elevate your productivity with our state-of-the-art compressors, designed for superior performance and reliability.
| 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 utilizes a sophisticated pressure sensor to immediately detect the precise system pressure and air consumption requirements. Through the advanced control of the electric and frequency converter, it adjusts the motor speed without altering the motor torque, thereby regulating system pressure to deliver compressed air as needed. When air consumption decreases and the compressor's output surpasses system demand, the inverter reduces the rotational speed to align production with consumption, maintaining system stability. Conversely, when demand increases, the motor speed is elevated to ensure a consistent and stable supply of compressed air.
Employing state-of-the-art vector control technology, our unit can operate efficiently across a broad range of speeds while minimizing motor temperature rise. This ensures optimal torque delivery for smooth compressor operation. The motor current is divided into torque-generating components and other current values by vector control technology. This sophisticated system compensates for voltage drops at the motor end, allowing maximum torque output without increasing the current, thereby enhancing operational efficiency.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Savings
Frequency conversion regulation significantly reduces the actual power consumption of the compressor, ensuring that energy is effectively utilized for air compression.
Cost Reduction
Permanent magnet frequency conversion technology reduces energy costs by over 35%, while the overall lifecycle cost of the compressor is lowered by an average of 22%. The additional investment in the compressor is typically recouped within 1 to 2 years.
Stable Pressure
Using the PID (Proportional, Integral, Differential) method, our compressor precisely adjusts to maintain stable system pressure, ensuring consistent performance.
Extended Lifespan
The frequency conversion startup reduces the impact on the power grid and machinery, significantly extending the service life of the compressor.
Top Quality
Top-quality imported bearings and the newest rotor profile development, featuring large rotors, significant displacement, low speed, and minimal noise, enhance both efficiency and production quality.
1. Price Advantage
We provide customers with unbeatable ex-factory prices, ensuring our clients remain highly competitive in their markets.
2. Direct Deal
All products are supplied directly from our factory, ensuring you receive the most cost-effective solutions.
3. OEM & ODM Services
Our factory boasts strong production and management capabilities, ready to offer tailored OEM/ODM services to meet your specific needs.
4. Customized Service
We welcome non-standard, export, and customized orders for voltage, power, pressure, and more. Reach out to discuss your unique requirements.
5. Small Order Acceptance
Start with a small trial order to experience firsthand the superior quality of our products.
6. Fast Delivery
Expect high-quality products delivered to you in a timely manner.
7. Complete Authorization
For distributors, we provide full authorization certificates, empowering you to sell our prestigious SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. stands as a distinguished manufacturer specializing in the production of high-quality screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our extensive product lineup encompasses normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, screw air compressors tailored for laser cutting, single-tank mobile screw air compressors, double-tank mobile screw air compressors, as well as electric and diesel mobile screw air compressors, and high-efficiency screw vacuum pumps.
Our state-of-the-art production facilities are designed to ensure maximum efficiency through sophisticated multi-air compressor assembly lines that are both lean and modern. Supported by the dedicated efforts of over 50 skilled employees, we continuously optimize our management systems, including ERP, to minimize lead times and ensure the rapid delivery of high-quality products.
Our commitment to quality is reflected in our ISO9001 certification, which underscores our adherence to rigorous quality management standards. We implement stringent quality control processes at every stage, from material inspection to production and pre-delivery checks, ensuring that each machine that leaves our facility is of the highest standard.
In terms of customer service, we offer comprehensive pre-sales support, guiding our clients in selecting the most suitable air equipment for various facilities. Our high degree of customization covers both appearance and specifications, enabling us to create unique, OEM products tailored to meet specific dealer requirements. Additionally, our professional sales and service team is always on standby to provide prompt after-sales support, ensuring customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering exceptional and reliable products, fostering long-term partnerships with our clients. With efficient delivery schedules, top-notch machines, and competitive pricing, we are your trusted source for comprehensive compressed air solutions.
Located in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer a convenient pick-up service from Xinzheng International Airport, which is approximately 30 kilometers away, translating to about an hour's drive. We warmly welcome you to visit our company!
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, boasting over a decade of expertise in the industry.
Q2. How do you control quality?
A: 1. Rigorous inspection of raw materials.
2. Strict control over installation procedures.
3. Mandatory 5-hour continuous testing for every machine before it leaves the factory.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min)
2. Desired working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency specific to your country (V/Hz)
4. Any additional accessories needed such as air tanks, filters, or air dryers.
Provide this information, and we will tailor a 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 voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Customization is also available to meet specific requirements.
Q6. How long is the delivery time?
A: For standard voltage models, delivery is within 15 working days after order confirmation. For non-standard models, please consult our sales team.
Q7. What's the payment term?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. Payments in both USD and RMB are accepted.
Q8. How about your warranty?
A: We offer a one-year warranty for the entire machine and a two-year warranty for screw air compressors, excluding consumable spare parts.
Q9. What about the maintenance?
A: Initial maintenance should be performed after 500 hours, with subsequent maintenance every 2000-3000 hours, taking the actual operating environment into account.
Q10. Can machines be run in high-temperature environments?
A: Yes, our machines are designed to operate in high-temperature conditions, with a working temperature range of -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Absolutely, we welcome both OEM and ODM orders thanks to our professional design team.
Q12. How long could your air compressor be used?
A: Generally, our air compressors have a lifespan of over 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, we certainly will.
Q14. How about your after-sales service?
A: We offer online guidance for installation and commissioning, and can arrange for our engineers to assist with training and installation.
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