Discover the pinnacle of industrial efficiency with our Permanent Magnet Variable Frequency Screw Type Air Compressors. Available in a broad range of power ratings-7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw-these compressors are engineered to meet the rigorous demands of the modern food industry. Elevate your operations with superior performance and unmatched 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 uses a pressure sensor to instantly detect the actual pressure and air consumption within the system. Through precise control of the electric motor and frequency converter, it adjusts the motor speed without altering the torque. This regulation maintains system pressure by providing compressed air on-demand. When system air consumption diminishes, the compressor output surpasses the requirement, prompting the inverter air compressor to reduce rotational speed and thus air output. Conversely, when air consumption increases, it elevates motor speed to boost compressed air output, ensuring stable system pressure.
By employing advanced vector control technology, the unit operates efficiently across a wide speed range, ensuring minimal motor temperature rise while delivering adequate torque to drive the air compressor seamlessly. The motor's current is composed of torque-generating components and other vector control elements, which optimally allocate current values for maximum efficiency. This technology compensates for voltage drops at the motor end, allowing it to output maximum torque without increasing current, thereby enhancing performance.
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 efficiently utilized in air compression.
Cost Reducing
Permanent magnet frequency conversion technology slashes energy costs by over 35%, while reducing the compressor's life cycle cost by an average of 22%. The added investment in the compressor is recouped within 1 to 2 years.
Steady Pressure
Using PID (Proportional, Integral, Differential) methods, the exclusive compressor adjusts accurately to maintain system pressure stability.
Life Extension
Frequency conversion start-ups minimize the impact on the power grid and machinery, extending service life.
Top Quality
Incorporating top-quality imported bearings and the latest rotor profile, featuring a large rotor, significant displacement, low speed, and reduced noise, this design enhances efficiency and production quality.
1. Price Advantage
We offer our customers direct ex-factory prices to ensure you remain highly competitive in the marketplace.
2. Direct Deal
All our products are supplied straight from the factory, enabling us to offer you more cost-effective solutions.
3. OEM & ODM Services
With robust production and management capabilities, our factory is well-equipped to provide comprehensive OEM and ODM services tailored to your needs.
4. Customised Service
We welcome non-standard and export orders with specific requirements for voltage, power, pressure, etc. Contact us to customize your order.
5. Accept Small Order
We invite you to place a small trial order to evaluate the exceptional quality of our products.
6. Fast Delivery
We ensure prompt delivery of high-quality products to meet your timelines.
7. Complete Authorization
For our distributors, we provide full authorization certificates to empower you to sell our SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd. is a seasoned manufacturer specializing in the production of screw air compressors and screw vacuum pumps, boasting over a decade of expertise. Our extensive product range spans 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, screw vacuum pumps, and more.
Our production facility leverages cutting-edge multi-air compressor assembly lines to achieve peak efficiency. With the dedication of over 50 skilled employees, we continuously refine our management systems, including ERP, to accelerate lead times and ensure swift delivery of top-quality products.
In our management practices, we have earned ISO9001 quality management system certification. We steadfastly adhere to rigorous quality management protocols, executing standard quality control processes with precision. Each machine undergoes comprehensive inspections, including material checks, production assessments, and pre-delivery evaluations.
Our customer service is unparalleled. In pre-sales, we provide professional guidance for selecting air equipment tailored to a variety of facilities and offer extensive customization options in appearance and configuration. We also excel in OEM, crafting unique products to meet the specific demands of our dealers. For after-sales support, our proficient sales and service team ensures rapid responses to all customer inquiries.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering high-quality, reliable products, fostering long-term relationships with our clients. With our promise of efficient delivery, superior machines, and competitive pricing, we are the trusted choice for your compressed air solutions.
Our factory is strategically located in Xinzheng City, Henan Province, China. We offer convenient pick-up services from Xinzheng International Airport to our factory, just 30 kilometers away, reachable in 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 high-quality screw air compressors with over a decade of industry experience.
Q2. How do you control quality?
A: 1. We rigorously inspect all raw materials to ensure top quality.
2. Our installation procedures are meticulously monitored and controlled.
3. Each machine undergoes a minimum of 5 hours of continuous testing before leaving our factory.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/Min).
2. The working pressure needed (Unit: PSI, Bar, or Mpa).
3. The voltage and frequency specific to your country (V/Hz).
4. Whether additional accessories such as an air tank, filters, and air dryers are needed.
Provide us with these details, and we will tailor 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, with customization available to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage units, delivery takes 15 working days after 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. Both USD and RMB are accepted.
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: Initial maintenance is required after 500 hours of operation, followed by regular maintenance every 2000-3000 hours, considering 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 working temperatures ranging from -20° to 45° (-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely! With our professional design team, both OEM and ODM orders are highly welcome.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a lifespan of over 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 comprehensive after-sales support, including online installation and commissioning instructions, and can arrange for our engineers to assist with training and installation.
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