Experience unparalleled efficiency with the Permanent Magnet Variable Frequency Screw Type Air Compressor, available in an extensive range of power options: 7.5kW, 11kW, 15kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, and 250kW. Sanzhi (Henan) Compressor Co., Ltd. presents this innovative solution designed to meet the diverse needs of modern industries 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 pressure sensor to instantly detect the actual system pressure and air consumption. Through precise control of the electric system and frequency converter, it adjusts the motor speed while maintaining the torque of the air compressor motor. This regulation ensures that the system pressure is stable and that compressed air is delivered according to demand. When air consumption decreases, the compressor reduces its speed, thereby decreasing compressed air output. Conversely, it increases the motor speed to boost compressed air output, ensuring a steady system pressure.
By adopting vector control technology, the unit can operate over a wide range of speeds while minimizing motor temperature rise. This ensures optimal and sufficient torque to drive the air compressor smoothly. The motor current comprises torque-generated components and others. Vector control technology distributes these current values to determine both the torque and other current components. This technology can effectively compensate for voltage drops at the motor end, allowing the motor to deliver maximum torque without increasing the current.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Saving
Frequency conversion regulation allows the actual power consumption of the compressor to reduce proportionally, ensuring that energy is effectively applied to air compression.
Cost Reduction
Permanent magnet frequency conversion technology reduces energy costs by more than 35%, and the life cycle cost of compressors by an average of 22%. The additional cost of the compressor can be recouped within 1 to 2 years.
Steady Pressure
Using the PID (Proportional, Integral, Differential) method, the exclusive compressor can be finely adjusted to maintain system pressure stability.
Life Extension
Frequency conversion start-up decreases the impact on the power grid and machinery, thereby extending service life.
Top Quality
Equipped with top-quality imported bearings and the latest rotor profile developments, the large rotor and low-speed operation result in increased efficiency, low noise, and enhanced production quality.
1. Unbeatable Price Advantage
Directly providing customers with ex-factory prices ensures our clients remain highly competitive in the market.
2. Direct Deal Advantage
All products are shipped directly from our factory, enabling us to offer you more cost-effective solutions.
3. Comprehensive OEM & ODM Services
Our robust production and management capabilities allow us to offer extensive OEM/ODM services tailored to your needs.
4. Bespoke Customisation Services
We cater to non-standard orders, export requirements, and specific voltage/power/pressure customisations. Contact us for your unique demands.
5. Small Order Acceptance
You are welcome to place a small trial order to evaluate the superior quality of our products.
6. Rapid and Reliable Delivery
We guarantee timely delivery of our high-quality products, ensuring your operations run smoothly.
7. Complete Authorization for Distributors
We provide full authorization certificates for distributors, empowering you to sell our prestigious SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd. is a renowned manufacturer specializing in the production of advanced screw air compressors and screw vacuum pumps, boasting over a decade of industry expertise. Our extensive product portfolio includes a wide range of solutions such as normal pressure/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 highly efficient screw vacuum pumps.
In our state-of-the-art production facilities, we utilize multiple lean and modern air compressor assembly lines to ensure maximum efficiency. Supported by a dedicated team of over 50 employees, we continuously enhance our management systems, including ERP, to minimize lead times and deliver high-quality products swiftly.
Our commitment to excellence in management is reflected in our ISO9001 quality management system certification. We rigorously adhere to stringent quality control processes, ensuring every machine undergoes thorough material inspection, production inspection, and pre-delivery inspection before shipment.
In customer service, we excel in both pre-sales and after-sales support. During pre-sales, we provide expert guidance to help customers select the ideal air equipment for diverse applications, offering high levels of customization in appearance and configuration. We also cater to OEM demands, creating bespoke products to meet specific requirements. Our professional sales and service team ensures a prompt response to any after-sales inquiries, guaranteeing customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd., we are dedicated to delivering superior, reliable products and fostering long-term relationships with our clients. With efficient delivery, top-quality machines, and competitive pricing, we are your trusted partner for all your compressed air solution needs.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer a complimentary pick-up service from Xinzheng International Airport to our factory, which is approximately 30 kilometers away and about an hour's drive. 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 expertise.
Q2. How do you control quality?
A: 1. Stringent inspection of all raw materials.
2. Rigorous control of the installation procedures.
3. Each machine undergoes no less than 5 hours of continuous testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/min)
2. The necessary working pressure (Unit: PSI, Bar, or Mpa)
3. The voltage and frequency specifics of your location (V/Hz)
4. Any additional accessories needed, such as air tanks, filters, or air dryers.
Provide us these details, and we will tailor a scheme 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, with customization available upon request.
Q6. How long is the delivery time?
A: For standard voltage units, delivery is within 15 working days post-order confirmation. For non-standard voltages, please consult 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. Payments can be made in USD or RMB.
Q8. How about your warranty?
A: Our warranty covers one year for the entire machine and two years for the screw air compressor, excluding consumable parts.
Q9. What about the maintenance?
A: Initial maintenance is required after 500 hours of operation, followed by regular maintenance every 2000-3000 hours, adjusted based on actual usage conditions.
Q10. Can machines be run in high-temperature environments?
A: Yes, our machines are designed to operate in high-temperature environments, with a working range from -20° to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Absolutely, we have a professional design team, and both OEM & ODM orders are highly welcomed.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a lifespan exceeding 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 can dispatch engineers for training and installation support.
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