Introducing our cutting-edge 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. Designed to deliver exceptional energy efficiency and robust performance, this versatile compressor meets various industrial needs with unparalleled 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 leverages an advanced pressure sensor to instantly detect the actual pressure and air consumption in the system. Through the precise control facilitated by the electric and frequency converter, it adjusts the motor speed without altering the torque of the air compressor motor. This regulation ensures the output of compressed air is aligned with demand. When system air consumption drops, the compressor's output surpasses the need, prompting the inverter air compressor to slow down the motor, thereby decreasing compressed air output. Conversely, when air consumption increases, the motor speed accelerates, augmenting the compressed air output to sustain stable system pressure.
Utilizing cutting-edge vector control technology, this compressor unit is capable of operating across a wide range of speeds while ensuring minimal motor temperature rise. This technology guarantees the motor delivers the necessary torque to drive the air compressor seamlessly. The motor current, consisting of the torque component generated by the motor, is efficiently distributed by vector control technology. This allows optimal compensation for voltage drops at the motor end, enabling maximum torque output without increasing current usage.
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, ensuring energy is effectively utilized for air compression. This results in impressive energy efficiency and notable cost savings.
Cost Reducing
The innovative permanent magnet frequency conversion technology slashes energy costs by over 35%, while reducing the compressor's life cycle cost by an average of 22%. The additional investment in this advanced compressor can be recouped within 1 to 2 years, making it a smart, economical choice.
Steady Pressure
Employing the PID (proportional, differential, integral) method, this advanced compressor ensures precise adjustment to maintain stable system pressure, enhancing overall operational reliability.
Life Extension
Frequency conversion starts dramatically reduce the impact on power grids and machinery, significantly prolonging the service life of the equipment. This results in less downtime and lower maintenance costs.
Top Quality
Crafted with the finest imported bearings and the latest rotor profile research, this compressor features a large rotor, substantial displacement, low speed, and low noise. These attributes collectively enhance efficiency and elevate production quality, delivering superior performance every time.
1. Competitive Pricing
Enjoy ex-factory pricing directly from us, ensuring you remain highly competitive in your market.
2. Direct Transactions
Our products come straight from the factory, offering you more cost-effective solutions.
3. Comprehensive OEM & ODM Services
With robust production and management capabilities, we can provide exceptional OEM and ODM services tailored to your needs.
4. Personalized Customization
We accept non-standard, export orders, and can customize voltage, power, pressure, and more. Reach out to us for your specific requirements.
5. Small Order Friendly
Place a small trial order to experience the superior quality of our products firsthand.
6. Swift Delivery
Receive top-tier products with prompt delivery times, ensuring your business runs smoothly.
7. Full Authorization for Distributors
Distributors will receive a full authorization certificate to market and sell SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd stands as a premier manufacturer specializing in screw air compressors and screw vacuum pumps, boasting over a decade of expertise. Our extensive product range encompasses normal pressure and 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, and advanced screw vacuum pumps.
Our production capabilities are second to none, utilizing state-of-the-art, multi-air compressor assembly lines that ensure the highest efficiency. Supported by a dedicated team of over 50 employees, we continually refine our management systems, including ERP, to minimize lead times and swiftly deliver top-quality products.
Our stringent commitment to quality is demonstrated by our ISO9001 quality management system certification. We rigorously adhere to standard quality control processes, ensuring that each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection before it reaches our customers.
In terms of customer service, our pre-sales team provides expert guidance in selecting the optimal air equipment for a variety of facilities, offering extensive customization options in appearance and configurations. We excel in creating bespoke products to meet the unique demands of our dealers through OEM services. Furthermore, our professional sales and service team ensures quick, reliable after-sales support for our customers.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering outstanding and dependable products, fostering long-term relationships with our clients. With our emphasis on efficient delivery, high-quality machinery, and competitive pricing, we are your trusted partner for comprehensive compressed air solutions.
Conveniently located in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary pick-up services from Xinzheng International Airport to our facility, just 30 kilometers away, a journey of about one hour. We warmly welcome you to visit us!
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors with over a decade of expertise.
Q2. How do you control quality?
A: 1. We meticulously inspect all raw materials.
2. Installation procedures are strictly regulated.
3. Every machine undergoes at least 5 hours of continuous testing before it leaves the factory.
Q3. What information must I provide to get the suitable machine?
1. Desired air delivery capacity (Unit: CFM or m³/Min)
2. Required working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency specifics for your location (V/Hz)
4. Need for additional accessories such as an air tank, filters, and/or air dryers.
Provide us with these details, and we will recommend the best solution for you!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for your air compressors?
A: Sanzhi offers voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can customize according to your requirements.
Q6. How long is the delivery time?
A: For standard voltage, delivery is within 15 working days after the order is confirmed. For non-standard voltages, please contact our sales team.
Q7. What are the payment terms?
A: 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 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: The first maintenance should be done after 500 hours, and subsequent maintenance every 2000-3000 hours, depending on the operating environment.
Q10. Can your machines run in high-temperature environments?
A: Yes, our machines can operate in high-temperature environments, with a working temperature range of -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely! With our professional design team, both OEM & ODM orders are highly welcomed.
Q12. How long can your air compressors be used?
A: Typically, our air compressors have a lifespan of more than 10 years.
Q13. Will you provide spare parts for the machines?
A: Yes, definitely.
Q14. How about your after-sales service?
A: We provide online instructions for installation and commissioning, and can arrange for our engineers to assist with training and setup.
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