Introducing the Industrial Permanent Magnet Variable Frequency Screw Type Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. Available in a comprehensive range of power capacities including 7.5kW, 11kW, 15kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, and 250kW. This advanced compressor is designed to meet the highest standards of efficiency and performance 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 employs advanced pressure sensors to instantly detect the actual pressure and air consumption within the system. Utilizing precise electric and frequency converter controls, it adjusts motor speed without altering the motor's torque, allowing the system pressure to be regulated according to demand. As air consumption decreases, the compressor reduces its speed, decreasing compressed air output; conversely, it increases speed to up the air output, thereby maintaining stable system pressure.
By leveraging vector control technology, the unit operates effectively across a wide range of speeds, ensuring minimized motor temperature rise while delivering appropriate and sufficient torque for smooth operation. The motor current comprises torque-generating components and other vector-controlled components that determine overall current values. These techniques optimally compensate for voltage drops at the motor end, enabling maximum torque output without increasing current.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Saving
Frequency conversion regulation enables significant power consumption reductions, ensuring energy is effectively utilized for air compression, thus optimizing efficiency.
Cost Reducing
Permanent magnet frequency conversion technology cuts energy costs by over 35% and reduces compressor lifecycle costs by an average of 22%. The additional compressor costs are recoverable within 1 to 2 years.
Steady Pressure
The PID (Proportional, Integral, Differential) method ensures precise adjustments, maintaining stable system pressure for optimal performance.
Life Extension
Frequency conversion start-up minimizes impacts on the power grid and machinery, significantly prolonging service life.
Top Quality
Featuring top-quality imported bearings and the latest rotor profile research, our compressor boasts a large rotor, high displacement, low speed, and reduced noise, enhancing efficiency and production quality.
1. Price Advantage
We offer customers direct ex-factory prices, ensuring they remain highly competitive in their markets.
2. Direct Deal
All our products are supplied directly from the factory, enabling us to provide more cost-effective solutions.
3. OEM & ODM Services
Our factory's robust production and management capabilities allow us to offer comprehensive OEM and ODM services tailored to your needs.
4. Customised Service
We welcome non-standard, export, and custom orders. Whether you need specific voltage, power, or pressure settings, we've got you covered. Contact us for your unique requirements.
5. Small Order Acceptance
Start with a small trial order to evaluate the superior quality of our products.
6. Fast Delivery
We ensure timely delivery of high-quality products, meeting your urgent needs efficiently.
7. Complete Authorization
As a distributor, you can obtain a full authorization certificate to market and sell our esteemed SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd is a premier manufacturer specializing in the production of state-of-the-art screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our extensive product line features 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 mobile screw air compressors, double-tank mobile screw air compressors, electric mobile screw air compressors, diesel mobile screw air compressors, and screw vacuum pumps, among others.
Our production process is characterized by exceptional efficiency achieved through the use of modern, lean multi-air compressor assembly lines. With the dedication of our team of over 50 skilled employees, we continually enhance our management systems, including ERP, to minimize lead times and ensure the rapid delivery of top-quality products.
In our management practices, we have earned ISO9001 quality management system certification. We consistently adhere to rigorous quality management protocols, meticulously implementing standard quality control processes. Each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection to guarantee excellence.
Our commitment to customer service is evident in our comprehensive pre-sales and after-sales support. Prior to purchase, we provide expert guidance to help customers select the ideal air equipment for diverse applications, offering high customization options including design and configuration. We also specialize in creating bespoke products to meet specific dealer requirements through OEM services. Post-purchase, our professional sales and service team is dedicated to providing prompt and effective support.
At Sanzhi (Henan) Compressor Co., Ltd, our mission is to deliver superior and reliable products, fostering long-term relationships with our customers. With our promise of swift delivery, high-quality machines, and competitive pricing, we are your dependable partner for all your compressed air solution needs.
Located in Xinzheng City, Henan Province, China, our factory is conveniently accessible. We offer complimentary pickup from Xinzheng International Airport, just 30 kilometers away, a journey of approximately 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 professional manufacturer of screw air compressors, boasting over a decade of industry experience.
Q2. How do you control quality?
A: 1. We conduct stringent inspections on all raw materials.
2. Our installation procedures are meticulously monitored and controlled.
3. Each machine undergoes a minimum of 5 hours of continuous testing before it leaves our factory.
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 specific to your country of residence (V/Hz)
4. Additional accessories needed such as an air tank, filters, and/or air dryers.
Share these details with us, and we will tailor-make the perfect 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 are the available voltages for the air compressor?
A: Sanzhi offers a variety of voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can customize as per your requirements.
Q6. How long is the delivery time?
A: For standard voltages, it's 15 working days post order confirmation. For non-standard requirements, please contact our sales team.
Q7. What's the payment term?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. USD and RMB are both accepted.
Q8. How about your warranty?
A: One year 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 should be performed after 500 hours. Subsequently, every 2000-3000 hours, considering the actual operating environment.
Q10. Can the machines operate in high-temperature environments?
A: Yes, our machines can operate in high-temperature environments, with working temperatures ranging from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely, with our expert design team, both OEM & ODM orders are warmly welcomed.
Q12. How long can your air compressors typically be used?
A: Generally, our air compressors have a lifespan of over 10 years.
Q13. Will you provide spare parts for the machines?
A: Yes, we will definitely provide spare parts.
Q14. How about your after-sales service?
A: We offer online instructions for installation and commissioning, and can arrange for our engineers to assist with training and installation.
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