Discover the exceptional performance of our Permanent Magnet Variable Frequency Screw Type Air Compressor, available in a wide range of power options: 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw. Engineered for efficiency and reliability, this compressor is perfect 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
The permanent magnet frequency conversion air compressor is a marvel of engineering, utilizing a pressure sensor to instantly detect actual use pressure and air consumption. Through the precise control of electric and frequency converters, it adjusts the motor speed without altering the torque, regulating system pressure and ensuring that compressed air output matches demand. When system air consumption decreases, the inverter air compressor reduces rotational speed, minimizing compressed air output. Conversely, it increases motor speed to boost compressed air output, thereby maintaining stable system pressure.
By adopting advanced vector control technology, our unit operates seamlessly across a wide range of speeds. This technology ensures minimized motor temperature rise, delivering the necessary torque to smoothly drive the air compressor. The motor current, divided into a torque component and other vector components, is finely tuned. Vector control techniques optimally compensate for voltage drops at the motor end, allowing maximum torque output without increasing current, thus significantly enhancing efficiency and reliability.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Savings
Frequency conversion regulation reduces actual power consumption proportionately, ensuring that energy is effectively utilized in air compression, leading to significant energy savings.
Cost Reduction
With permanent magnet frequency conversion technology, energy costs are slashed by over 35%, and the life cycle cost of compressors is reduced by an average of 22%. The initial investment is typically recovered within 1 to 2 years, offering a cost-effective solution.
Stable Pressure
Utilizing the PID (Proportional, Integral, Differential) method, our exclusive compressor accurately adjusts to maintain stable system pressure, ensuring consistent and reliable performance.
Extended Lifespan
Frequency conversion starts reduce the impact on the power grid and mechanical components, thereby extending the service life of the compressor and ensuring long-term reliability.
Top Quality
Incorporating top-quality imported bearings and the latest rotor profile technology. Featuring a large rotor, substantial displacement, low speed, and reduced noise, our compressors significantly enhance efficiency and production quality.
1. Unmatched Price Advantage
We offer customers direct ex-factory prices, enhancing their market competitiveness.
2. Straightforward Transactions
Our products are supplied directly from the factory, ensuring more cost-effective solutions.
3. Comprehensive OEM & ODM Services
With robust production and management capabilities, our factory offers exceptional OEM/ODM services tailored to your needs.
4. Personalized Customisation Services
Accepting non-standard and export orders, we customize voltage, power, pressure, etc., to meet your specific requirements. Contact us for more details.
5. Flexibility with Small Orders
Initiate a small trial order to experience the superior quality of our products firsthand.
6. Swift and Reliable Delivery
We ensure high-quality products are delivered promptly, meeting your timeline.
7. Comprehensive Authorization for Distributors
We provide full authorization certificates, empowering distributors to sell our prestigious SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd. is a renowned manufacturer specializing in the production of high-quality screw air compressors and screw vacuum pumps, boasting over a decade of expertise. Our extensive product range encompasses normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, screw air compressors for laser cutting, single-tank mobile screw air compressors, double-tank mobile screw air compressors, electric mobile screw air compressors, diesel mobile screw air compressors, screw vacuum pumps, and more.
In production, we achieve unparalleled efficiency through our state-of-the-art, multi-air compressor assembly lines, which are both lean and modern. With the dedication of over 50 experienced employees, we continually enhance our management systems, such as ERP, to reduce lead times and deliver top-quality products promptly.
In management, our factory has earned ISO9001 quality management system certification. We steadfastly adhere to a rigorous quality management system, meticulously implementing standard quality control processes. Each machine undergoes thorough material inspections, production inspections, and pre-delivery inspections, ensuring impeccable quality.
In customer service, our pre-sales team provides expert guidance to help customers select air equipment tailored for diverse applications. We offer highly customizable options, including unique appearances and configurations. We also excel in creating bespoke OEM products to meet dealer demands. Our after-sales team, comprising professional sales and service experts, ensures rapid responses to customer inquiries.
At Sanzhi (Henan) Compressor Co., Ltd., our commitment is to deliver superior and reliable products, fostering long-term relationships with our customers. With efficient delivery, high-quality machines, and competitive pricing, we are your trusted partner for comprehensive compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We can arrange for your transportation from Xinzheng International Airport to our factory, a journey of approximately 30 kilometers that takes about one hour. We warmly welcome you to visit our company!
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, boasting over a decade of industry expertise.
Q2. How do you control quality?
A: 1. We implement rigorous inspections on all raw materials.
2. Adherence to strict installation procedures is maintained.
3. Each unit undergoes a minimum of 5 hours of continuous testing before dispatch.
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 specifications for your location (V/Hz)
4. Indicate if additional accessories are needed, such as an air tank, filters, or air dryers.
Provide us 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: The available voltages from Sanzhi include 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with customization options to meet your specific needs.
Q6. How long is the delivery time?
A: For standard voltages, delivery is within 15 working days post-order confirmation. For non-standard requirements, please reach out to our sales team.
Q7. What's the payment term?
A: Payment terms are 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. We accept both USD and RMB.
Q8. How about your warranty?
A: We provide a one-year warranty for the entire machine, and a two-year warranty 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 regular maintenance every 2000-3000 hours, adjusted based on actual operating conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely. Our machines are designed to operate in environments with temperatures ranging from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Yes, we welcome both OEM & ODM orders, supported by 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 will supply spare parts as needed.
Q14. How about your after-sales service?
A: We provide online guidance for installation and commissioning, and can arrange for our engineers to offer training and installation support.
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