Discover the unparalleled efficiency of Sanzhi (Henan) Compressor Co., Ltd.'s Permanent Magnet Variable Frequency Screw Type Air Compressor. Available in a versatile range of power options: 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw, this cutting-edge air compressor ensures optimal performance and energy savings for any industrial application.
| 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 adopts a pressure sensor to instantly sense the actual use pressure and air consumption in the system, and through the precise control of electric and frequency converter, it changes the motor speed without changing the torque of the air compressor motor, so as to regulate the system pressure in order to realize the output of compressed air according to the demand. When the system air consumption decreases, the amount of compressed air provided by the compressor is larger than the system air consumption, the inverter air compressor reduces the rotational speed, thus decreasing the amount of compressed air output; on the contrary, it raises the motor rotational speed to increase the amount of compressed air in order to maintain a stable system pressure.
Adopting vector control technology, the unit can operate at a wide range of speeds, and at the same time ensure that the motor temperature rise is minimized to get the appropriate and sufficient torque to drive the air compressor smoothly. The motor current consists of the torque component generated by the motor and other vector control technology distributes the current values of the motor to determine the values of the motor current component that generates torque and other current components. Vector control techniques can optimally compensate for this by responding to a voltage drop at the motor end, allowing the motor to output the maximum torque without increasing the current.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High efficiency and energy saving
Frequency conversion regulation can reduce the actual power consumption of frequency conversion compressor in the same proportion, and the energy can be effectively applied to air compression.
Cost Reducing
The energy cost of permanent magnet frequency conversion technology is reduced by more than 35%, and the life cycle cost of compressors can be reduced by an average of 22%. The extra cost of the compressor can be recovered within 1 to 2 years.
Steady Pressure
The PID(proportional, differential, integral) method is used to accurately adjust the exclusive compressor to maintain the stability of the system pressure.
Life Extension
Frequency conversion starts to reduce the impact of meta-collection on the power grid and machinery and prolong the service life.
Top quality
The use of Top-quality imported bearings and the latest research and development of rotor profile, large rotor, large displacement, low speed, low noise, improve efficiency and production quality.
1. Competitive Pricing
We offer factory-direct prices, ensuring our customers gain a competitive edge in their markets.
2. Direct Transactions
Our products are supplied directly from the factory, guaranteeing more cost-effective solutions for our clients.
3. Tailored OEM & ODM Services
With robust production and management capabilities, our factory is well-equipped to provide bespoke OEM/ODM services tailored to your needs.
4. Personalized Customization
We accommodate non-standard orders including export orders, voltage, power, and pressure customizations. Reach out if you have specific requirements.
5. Small Order Acceptance
Start with a small trial order to assess the exceptional quality of our products.
6. Expedited Delivery
Experience the blend of high-quality products and prompt delivery times.
7. Comprehensive Authorisation
For our distributors, we provide full authorization certificates, empowering you to market our prestigious SANZHI brand products.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd., with over a decade of esteemed expertise, stands as a premier manufacturer specializing in screw air compressors and screw vacuum pumps. Our extensive and versatile product range encompasses 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 and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and the robust screw vacuum pump, among others.
Our state-of-the-art production lines, tailored for multiple air compressor assemblies, ensure we achieve peak efficiency and modernity. With the dedicated efforts of our 50+ skilled employees, we continuously refine our management systems, including ERP, to minimize lead times and expedite delivery of high-quality products.
A testament to our commitment to excellence, our factory proudly holds the ISO9001 quality management system certification. We rigorously adhere to stringent quality control standards, ensuring that each machine undergoes thorough inspections at every stage-from material inspection to production, and finally, to pre-delivery examination.
Our customer service is unparalleled, offering comprehensive pre-sales guidance to help customers select the perfect air equipment tailored to their diverse needs. We excel in high customization, from appearance to allocation, and even offer bespoke OEM solutions to meet specific dealer demands. Our dedicated sales & service team ensures rapid, professional after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering superior, reliable, and stable products, fostering enduring relationships with our valued customers. With our promise of efficient delivery, top-tier machines, and competitive pricing, we provide a trustworthy and satisfactory compressed air solution.
Conveniently located in Xinzheng City, Henan Province, China, our factory is just a short journey from Xinzheng International Airport, approximately 30 kilometers away. We warmly welcome you to visit and experience our dedication to excellence firsthand.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer specializing in screw air compressors, boasting over a decade of experience.
Q2. How do you control quality?
A: 1. We meticulously inspect all raw materials.
2. We implement strict control over installation procedures.
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 specifications in your country (V/Hz)
4. Any additional accessories you might need, such as an air tank, filters, and/or air dryers.
Share this information with us, and we will craft a tailored 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's air compressors support voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized to your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage units, delivery takes 15 working days post-order confirmation. For non-standard units, 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. Payments can be made in USD or 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 is required after 500 hours of operation, followed by regular maintenance every 2000-3000 hours, depending on the actual operating environment.
Q10. Can machines be run in high-temperature environments?
A: Yes, our machines are designed to operate in high-temperature environments, with a working temperature range from -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Absolutely. Our professional design team welcomes both OEM and ODM orders.
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 definitely provide spare parts for our machines.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online instructions for installation and commissioning, as well as arranging for our engineers to assist with training and installation.
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