Experience unparalleled efficiency with the Permanent Magnet Variable Frequency Screw Type Air Compressor. Available in a wide range of power options including 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw, this versatile compressor is engineered to meet all your industrial needs with precision 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 actual use pressure and air consumption within the system. Through the precise manipulation of the electric and frequency converter, it adjusts the motor speed without altering the motor's torque. This ensures the system pressure is regulated, producing compressed air precisely according to demand. When system air consumption drops, if the compressor output surpasses the demand, the inverter air compressor lowers the rotational speed, thus decreasing the compressed air output. Conversely, it increases the motor speed to boost compressed air production, ensuring a stable system pressure.
By adopting advanced vector control technology, this unit can function across a broad range of speeds while minimizing motor temperature rise, ensuring optimal torque to drive the air compressor seamlessly. The motor current is composed of the torque component and other vector control components. This technology distributes the motor current values to determine the torque-generating component and other current components. Vector control techniques provide optimal compensation for voltage drops at the motor end, enabling the motor to deliver maximum torque 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 frequency conversion compressor, ensuring energy is efficiently used for air compression.
Cost Reduction
The permanent magnet frequency conversion technology can reduce energy costs by over 35%, while the life cycle costs of compressors can be cut by an average of 22%. The initial extra cost of the compressor is typically recovered within 1 to 2 years.
Steady Pressure
The application of the PID (Proportional, Integral, Differential) method ensures precise adjustments to maintain system pressure stability.
Extended Service Life
Frequency conversion starts diminish the impact on the power grid and machinery, significantly extending the compressor's service life.
Top-Quality Construction
Incorporating top-quality imported bearings and the latest rotor profile research, featuring large rotors, substantial displacement, low speed, and reduced noise, enhances both efficiency and production quality.
1. Unbeatable Price Advantage
We deliver products at ex-factory prices directly to our customers, ensuring they stay ahead in the competitive market.
2. Direct Factory Dealings
Our entire product range is supplied directly from our factory, offering exceptional cost-effectiveness.
3. Comprehensive OEM & ODM Services
With our robust production and management capabilities, we provide top-tier OEM/ODM services tailored to your needs.
4. Bespoke Customization Services
We cater to non-standard orders including export, voltage, power, and pressure specifications. Contact us for your unique requirements.
5. Small Order Acceptance
Start with a small trial order to assess the superior quality of our products.
6. Swift Delivery
Experience high-quality products coupled with prompt delivery times.
7. Full Authorization Support
For our distributors, we provide comprehensive authorization certificates to promote and sell our SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd is a distinguished manufacturer specializing in the production of top-tier screw air compressors and screw vacuum pumps. With a rich legacy spanning over 10 years, we take pride in our diverse product portfolio that includes normal pressure and 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 and double-tank mobile screw air compressors, along with electric and diesel mobile screw air compressors, and highly efficient screw vacuum pumps.
In production, our cutting-edge facilities enable us to achieve unparalleled efficiency through state-of-the-art multi-air compressor assembly lines that are both lean and modern. Our team of over 50 dedicated employees continuously enhances management systems such as ERP, ensuring reduced lead times and swift delivery of top-quality products.
In management, our factory has proudly achieved ISO9001 quality management system certification. We are committed to adhering to a rigorous quality management system, meticulously implementing standard quality control processes. Each machine undergoes a comprehensive inspection process, including material inspection, production inspection, and pre-delivery inspection, ensuring the highest standards of quality.
In customer service, we excel both in pre-sales and after-sales support. Pre-sales, we provide expert guidance to help customers select the ideal air equipment for various facilities, offering high customization options, including appearance and configuration. We even cater to unique OEM demands of dealers. For after-sales, our professional sales and service team is always ready for a prompt response, ensuring customer satisfaction is our priority.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior and stable products, fostering long-term relationships with our customers. With efficient delivery, top-notch machines, and competitive pricing, we are your reliable partner for a satisfactory compressed air solution.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer a complimentary pickup service from Xinzheng International Airport to our factory, a short 30-kilometer journey that takes about one hour. We warmly invite 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 expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials.
2. Our installation procedures are meticulously controlled.
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 of your country (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, and/or air dryers.
Provide us with these details, and we'll tailor a solution for you!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage air compressor?
A: Sanzhi offers voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with customization options available.
Q6. How long is the delivery time?
A: For standard voltage units, delivery is within 15 working days post-confirmation of order. For non-standard voltages, please contact our sales team.
Q7. What's the payment term?
A: Payment terms are 30% T/T upfront, 40% T/T before shipment, and 30% T/T upon B/L copy. Payments in USD or 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 the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: Initial maintenance is required after 500 hours, followed by regular maintenance every 2000-3000 hours, depending on the operating environment.
Q10. Can machines be run in high-temperature environment?
A: Yes, our machines are designed to operate in high-temperature environments, with working temperatures ranging from -20° to 45°C (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Absolutely! With our professional design team, both OEM & ODM orders are warmly welcomed.
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: Certainly, we will provide all necessary spare parts.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online installation and commissioning guidance, as well as on-site assistance and training from our engineers.
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