Experience the next generation of efficiency with our Permanent Magnet Variable Frequency Screw Type Air Compressor range. Available in a versatile selection of power ratings, including 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw, these compressors are engineered to meet the diverse and demanding needs of your operation. Whether you're scaling up or optimizing current processes, Sanzhi (Henan) Compressor Co., Ltd. offers the precision and reliability you require for maximum productivity.
| 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 modern engineering. It utilizes a pressure sensor to instantly detect real-time system pressure and air consumption. Through precise control of the electric and frequency converter, it adjusts the motor speed without altering the motor's torque. This allows for seamless regulation of system pressure, producing compressed air exactly as needed. When air consumption decreases, the compressor reduces its rotational speed, thereby decreasing air output. Conversely, when air consumption increases, it raises the motor speed to provide more compressed air, maintaining consistent system pressure.
By employing advanced vector control technology, our unit can operate across a wide range of speeds while minimizing motor temperature rise. This ensures adequate and efficient torque for smooth compressor operation. The motor current comprises a torque component and other vector control technology distributes these currents to optimize motor performance. This technology can also compensate for voltage drops at the motor end, allowing the motor to deliver maximum torque without increasing current, ensuring robust and efficient operation.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Saving
With frequency conversion regulation, our compressors significantly reduce actual power consumption. This optimizes the energy application towards air compression, making the entire process more efficient and sustainable.
Cost Reducing
Harnessing permanent magnet frequency conversion technology, we achieve an energy cost reduction of over 35%. This translates to a 22% decrease in the life cycle cost of compressors. Remarkably, the additional investment in this technology is typically recouped within 1 to 2 years.
Steady Pressure
Utilizing the PID (Proportional, Differential, Integral) method, our exclusive compressors are finely tuned to maintain stable system pressure, ensuring consistent performance and reliability.
Life Extension
Frequency conversion starting reduces the impact on the power grid and mechanical components, thereby extending the service life of the compressor.
Top Quality
Our compressors incorporate top-quality imported bearings and the latest rotor profile research. The large rotor with high displacement and low speed not only minimizes noise but also enhances efficiency and production quality, making it a top-tier choice.
1. Price Advantage
By offering ex-factory prices directly to our customers, we ensure that you gain a competitive edge in the market.
2. Direct Deal
Our products come straight from the factory, allowing us to provide you with highly cost-effective solutions.
3. OEM & ODM Services
Leveraging our robust production and management capabilities, we offer comprehensive OEM and ODM services tailored to your needs.
4. Customised Service
We welcome non-standard orders, including export orders and specific requirements for voltage, power, pressure, etc. Contact us to discuss your customization needs.
5. Accept Small Orders
You can start with a small trial order to evaluate the exceptional quality of our products.
6. Fast Delivery
We guarantee high-quality products delivered punctually, meeting your timelines efficiently.
7. Complete Authorisation
For our distributors, we provide complete authorization certificates, empowering you to confidently sell our SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd is a leading-edge manufacturer specializing in the production of screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our extensive 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, and mobile screw compressors ranging from single-tank and double-tank designs to electric and diesel variants. Our offerings also feature advanced screw vacuum pumps, ensuring a versatile selection for diverse industrial applications.
Our state-of-the-art production capabilities enable us to deliver unparalleled efficiency through lean and modern multi-air compressor assembly lines. Supported by a dedicated team of over 50 employees, we continually refine our management systems, such as ERP, to minimize lead times and ensure rapid delivery of top-quality products.
Our commitment to excellence is demonstrated through our ISO9001 quality management system certification. We rigorously adhere to stringent quality control protocols, ensuring each machine undergoes meticulous inspection processes, including material inspection, production inspection, and pre-delivery inspection, to guarantee superior performance and reliability.
In customer service, we excel both pre- and post-sales. Before purchase, we provide expert guidance in selecting the optimal air equipment tailored to specific facility needs and offer extensive customization options, including OEM solutions to meet unique dealer demands. Post-purchase, our professional sales and service team is poised to deliver prompt and efficient support, ensuring customer satisfaction at every stage.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering superior, stable, and reliable products designed to foster long-term customer relationships. With our focus on efficient delivery, high-quality machinery, and competitive pricing, we guarantee a satisfactory compressed air solution tailored to your needs.
Located in the heart of Xinzheng City, Henan Province, China, our factory is easily accessible. We offer convenient pick-up services from Xinzheng International Airport, situated just 30 kilometers away, approximately a one-hour drive. We warmly welcome you to visit our company and experience our commitment to excellence firsthand.
Successful Cases
Frequently Asked Questions (FAQ)
Q1. Are you a trading company or manufacturer?
A: We are a dedicated manufacturer of screw air compressors, boasting over 10 years of industry expertise.
Q2. How do you ensure quality control?
A: 1. Rigorous inspection of all raw materials.
2. Strict control over installation procedures.
3. Every machine undergoes a minimum of 5 hours of continuous testing prior to dispatch.
Q3. What information is required to get the right 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. Additional accessories needed, such as an air tank, filters, or air dryers.
Provide us with these details, and we will tailor a solution for you!
Q4. What are the general unit conversions?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for the air compressor?
A: Sanzhi offers voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can customize based on your specifications.
Q6. What is the delivery timeline?
A: For standard voltages, delivery is within 15 working days after order confirmation. For non-standard voltages, please contact our sales team.
Q7. What are your payment terms?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. Payments accepted in USD or RMB.
Q8. What is your warranty policy?
A: One year for the entire machine and two years for the screw air compressor, excluding consumable spare parts.
Q9. What about maintenance requirements?
A: Initial maintenance is required after 500 hours, followed by regular maintenance every 2000-3000 hours, depending on environmental conditions.
Q10. Can your machines operate in high-temperature environments?
A: Yes, our machines are designed to operate in high-temperature conditions, with an operational range from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM services?
A: Absolutely, our professional design team welcomes both OEM & ODM orders.
Q12. What is the lifespan of your air compressors?
A: Typically, our air compressors have a lifespan of over 10 years.
Q13. Will you provide spare parts for the machines?
A: Yes, we certainly will provide spare parts.
Q14. How is your after-sales service structured?
A: We offer online installation and commissioning instructions and can arrange for our engineers to assist with training and installation.
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