Discover the unparalleled efficiency and versatility of our Permanent Magnet Variable Frequency Screw Type Air Compressors. Available in a comprehensive range of power outputs including 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw, these state-of-the-art compressors are engineered to meet the rigorous demands of various industries. Experience unmatched performance and reliability with Sanzhi (Henan) Compressor Co., Ltd.'s premier solutions.
| 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 a sophisticated pressure sensor to immediately detect the actual pressure and air consumption within the system. Through the precise orchestration of an electric and frequency converter, it adjusts motor speed while maintaining constant torque, thereby regulating system pressure to meet demand. When system air consumption drops and the compressor's output exceeds demand, the inverter reduces rotational speed, decreasing compressed air output. Conversely, it accelerates the motor to increase compressed air supply, ensuring stable system pressure.
Utilizing advanced vector control technology, the unit operates across a broad speed range while minimizing motor temperature rise, ensuring optimal and sufficient torque to drive the air compressor seamlessly. The motor current comprises torque-generated components and other vector control technology balances these current values to determine the requisite torque and additional current components. This technology adeptly compensates for voltage drops at the motor end, maximizing torque output without increasing current.
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 harnessed for air compression.
Cost Reduction
With permanent magnet frequency conversion technology, energy costs are slashed by over 35%, and the compressor's life cycle cost is reduced by an average of 22%. The additional investment in the compressor can be recouped within 1 to 2 years.
Steady Pressure
The PID (Proportional, Differential, Integral) control method precisely adjusts the compressor to maintain stable system pressure.
Extended Service Life
Frequency conversion starting minimizes the impact on the power grid and machinery, thereby extending the service life.
Top Quality
Featuring top-quality imported bearings and the latest rotor profile research, our large rotor, high-displacement, low-speed, and low-noise design enhances efficiency and production quality.
1. Unbeatable Pricing
We offer direct-from-factory pricing, ensuring our customers always stay ahead in the competitive landscape.
2. Direct Transactions
Our products come straight from the factory, allowing us to provide more cost-efficient solutions.
3. OEM & ODM Solutions
Leveraging our strong production and management capabilities, we offer customized OEM/ODM services tailored to meet your needs.
4. Bespoke Services
We accommodate non-standard orders, export specifications, and customized voltage/power/pressure. Reach out to us with your specific requirements.
5. Small Order Friendly
We welcome small trial orders, allowing you to verify the superior quality of our products.
6. Swift Delivery
Expect prompt delivery of high-quality products, every time.
7. Full Authorization
As a distributor, receive comprehensive authorization certificates to market our esteemed SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. boasts over a decade of unparalleled expertise in manufacturing top-of-the-line screw air compressors and screw vacuum pumps. Our extensive portfolio features an array of high-performance products, including normal pressure and 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 mobile screw air compressors, diesel mobile screw air compressors, and superior screw vacuum pumps.
Our state-of-the-art production facility operates on highly efficient, lean, and modern multi-air compressor assembly lines. With the dedication of our skilled workforce of over 50 employees, we continuously enhance our management systems, such as ERP, to significantly reduce lead times and ensure fast delivery of premium-quality products.
Our commitment to excellence is demonstrated through our ISO9001 quality management system certification. We rigorously adhere to stringent quality control protocols, ensuring that each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection, guaranteeing consistently superior quality.
Customer satisfaction is at the heart of our service ethos. In pre-sales, we provide expert guidance to help customers choose the optimal air equipment for their specific needs, offering extensive customization options in terms of appearance and configuration. We also specialize in OEM solutions to meet unique dealer requirements. Our after-sales support is equally robust, with a dedicated team ready to provide rapid responses and exceptional service.
At Sanzhi (Henan) Compressor Co., Ltd., our mission is to deliver superior, stable products and foster long-term relationships with our clients. We pride ourselves on efficient delivery, high-quality machinery, and competitive pricing, offering you dependable and satisfactory compressed air solutions.
Conveniently situated in Xinzheng City, Henan Province, China, our factory is just 30 kilometers from Xinzheng International Airport - about an hour's drive. We warmly welcome you to visit us and experience our facilities firsthand!
Successful Cases
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, boasting over a decade of industry experience.
Q2. How do you control quality?
A: 1. We maintain rigorous inspection of all raw materials.
2. Our installation procedures are meticulously monitored.
3. Each machine undergoes a minimum of 5 hours of continuous testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min)
2. Necessary working pressure (Unit: PSI, Bar or Mpa)
3. Voltage and frequency specifications of your country (V/Hz)
4. Need for additional accessories such as air tanks, filters, and/or air dryers.
Provide us these details, and we will tailor a solution 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 of 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Customization is also available to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage units, delivery is within 15 working days post order confirmation. For non-standard requests, please consult 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. We accept payments in USD and RMB.
Q8. How about your warranty?
A: We provide 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: Initial maintenance is required after 500 hours of operation, followed by regular maintenance every 2000-3000 hours, adjusted based on the operating environment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are designed to operate in high-temperature environments, with a working temperature range from -20° to 45° (-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Yes, we welcome both OEM and ODM orders, backed by our professional design team.
Q12. How long could your air compressor be used?
A: Our air compressors typically have a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we will supply spare parts as needed.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online installation and commissioning guidance, and can arrange for our engineers to assist with training and installation.
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