Introducing our Permanent Magnet Variable Frequency Screw Type Air Compressor, available in an extensive range of power capacities: 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw. Designed by Sanzhi (Henan) Compressor Co., Ltd., this cutting-edge industrial compressor ensures optimal performance, energy efficiency, and unmatched reliability 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
A permanent magnet frequency conversion air compressor utilizes a sophisticated pressure sensor to instantly detect actual usage pressure and air consumption within your system. Through precise electric and frequency converter control, it adjusts motor speed without altering the torque, thereby regulating system pressure to meet demand-driven compressed air output. When system air consumption decreases, the compressor provides more compressed air than needed, prompting the inverter air compressor to reduce the rotational speed and decrease output. Conversely, when air consumption rises, the motor speeds up to supply more compressed air, maintaining a stable system pressure.
By adopting advanced vector control technology, our unit operates efficiently across a wide range of speeds while minimizing motor temperature rise. This ensures adequate and smooth torque to drive the air compressor seamlessly. The motor current, comprising torque and other vector control components, is precisely managed to optimize performance. Vector control techniques adeptly compensate for voltage drops at the motor end, allowing maximum torque output without increased current.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Saving
Frequency conversion regulation significantly reduces actual power consumption, ensuring energy is effectively utilized for air compression.
Cost Reduction
Permanent magnet frequency conversion technology reduces energy costs by over 35%, while average life cycle costs of compressors are cut by 22%. The additional compressor costs are recoverable within 1 to 2 years.
Steady Pressure
By employing the PID (proportional, differential, integral) method, our exclusive compressor precisely maintains system pressure stability.
Life Extension
Frequency conversion starts reduce the impact on power grids and machinery, extending service life.
Top Quality
Featuring top-quality imported bearings and the latest rotor profile research, our compressor boasts a large rotor, significant displacement, low speed, and noise, enhancing efficiency and production quality.
1. Unrivaled Price Advantage
We offer factory-direct prices, ensuring you stay ahead in competitiveness.
2. Seamless Direct Deal
Our products come straight from the factory, providing you with highly cost-effective solutions.
3. Premium OEM & ODM Services
With our robust production and management capabilities, we offer top-notch OEM/ODM services tailored to your needs.
4. Bespoke Customised Services
We accommodate non-standard, export, and customized orders for voltage, power, pressure, etc. Reach out with your specific demands!
5. Flexible Small Order Acceptance
Start with a small trial order to evaluate the premium quality of our products.
6. Swift and Reliable Delivery
Count on us for high-quality products delivered promptly and efficiently.
7. Comprehensive Authorisation
We provide full authorization certificates for distributors, empowering you to confidently market SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. is a premier manufacturer specializing in the production of screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our extensive product line includes a diverse array of high-performing solutions such as 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, single-tank and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and advanced screw vacuum pumps.
In our production process, 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 skilled employees, we continually refine our management systems, including ERP, to minimize lead times and ensure swift delivery of top-quality products.
Our factory is committed to maintaining the highest standards of quality management, proudly holding ISO9001 certification. We rigorously adhere to stringent quality control processes, ensuring each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection to guarantee exceptional quality.
Our customer service excellence begins with pre-sales, where we provide expert guidance on selecting air equipment for various applications, offering high levels of customization in appearance and configuration. We excel in creating unique OEM products tailored to meet the specific needs of our dealers. Post-sales, our professional sales and service team is dedicated to delivering rapid and effective responses to all customer inquiries.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering superior, reliable products and fostering long-term relationships with our customers. We pride ourselves on efficient delivery, high-quality machinery, and competitive pricing, making us your trusted partner for all compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary pick-up services from Xinzheng International Airport, located just 30 kilometers away, ensuring a seamless journey to our facility. We warmly invite you to visit us and experience our commitment to excellence firsthand.
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished 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 all raw materials.
2. Strict control over the installation procedures.
3. Comprehensive testing for a minimum of 5 hours on each machine before it leaves our facility.
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 country (V/Hz)
4. Any additional accessories needed such as an air tank, filters, and/or air dryers.
Share these details, and we will customize a solution just 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 voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p. Customization based on your requirements is also available.
Q6. How long is the delivery time?
A: For standard voltage, it is 15 working days post order confirmation. For non-standard requirements, please contact 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. Both USD and RMB are accepted.
Q8. How about your warranty?
A: One-year warranty for the entire machine and two years for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: The first maintenance is due after 500 hours, followed by regular maintenance every 2000-3000 hours, considering the actual operating environment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are designed to operate in high-temperature conditions, with a working range from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Yes, we offer OEM & ODM services with our professional design team, welcoming both types of orders.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a lifespan of more than 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, we certainly provide spare parts for our machines.
Q14. How about your after-sales service?
A: We offer online guidance for installation and commissioning, and our engineers are available to assist with training and installation.
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