Introducing the Permanent Magnet Variable Frequency Screw Type Air Compressor by Sanzhi (Henan) Compressor Co., Ltd., engineered to deliver unparalleled efficiency and performance. Available in a range of power capacities including 7.5kW, 11kW, 15kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, and 250kW, this innovative compressor is designed to meet your industrial needs with precision and reliability. Discover the ultimate in energy-saving technology, ensuring optimal performance across all operational conditions.
| 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. |
Advanced Working Principle
A permanent magnet frequency conversion air compressor masterfully integrates a pressure sensor to instantaneously gauge the system's actual use pressure and air consumption. Utilizing sophisticated electric and frequency converter control, it dynamically adjusts the motor speed without altering the air compressor's motor torque. This ensures that system pressure is precisely regulated to match the compressed air output with demand. When air consumption decreases, the compressor's output surpasses system requirements, prompting the inverter air compressor to reduce rotational speed, thereby lowering compressed air output. Conversely, if air demand increases, the motor's rotational speed escalates to boost the compressed air output, maintaining a stable system pressure efficiently.
Leveraging cutting-edge vector control technology, this unit operates seamlessly across a broad speed range while minimizing motor temperature rise. This ensures optimal and sufficient torque for smooth air compressor operation. The motor current, comprising torque and other vector control technology components, is expertly managed to determine the motor current values generating torque and other currents. Vector control techniques skillfully compensate for voltage drops at the motor end, allowing maximum torque output without increasing current.
Unmatched Advantages of the Permanent Magnet Variable Frequency Screw Air Compressor
Unparalleled Efficiency and Energy Conservation
Frequency conversion regulation significantly reduces the actual power consumption of the frequency conversion compressor proportionally, ensuring energy is effectively utilized for air compression.
Significant Cost Reduction
Thanks to 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 initial investment in the compressor can be recouped within just 1 to 2 years.
Consistent Pressure Maintenance
With the application of the PID (proportional, differential, integral) method, the compressor is meticulously adjusted to ensure the stability of system pressure.
Extended Service Life
Frequency conversion starting minimizes the impact on the power grid and machinery, substantially prolonging the service life of the compressor.
Premium Quality Assurance
By incorporating top-quality imported bearings and the latest rotor profile research, featuring large rotors, large displacement, low speed, and low noise, efficiency and production quality are significantly enhanced.
1. Unmatched Price Advantage
We offer direct ex-factory pricing, empowering our customers to stay highly competitive in their markets.
2. Direct Transactions
All our products are factory-direct, ensuring you receive the most cost-effective solutions available.
3. Comprehensive OEM & ODM Services
Leverage our robust production and management capabilities to benefit from tailored OEM/ODM services.
4. Bespoke Customisation
We cater to non-standard, export, and specific voltage/power/pressure orders, all customized to your unique needs. Contact us with your requirements.
5. Small Order Acceptance
Start with a small trial order to evaluate the superior quality of our products.
6. Prompt Delivery
Expect high-quality products delivered with unwavering timeliness.
7. Full Distributor Authorization
We provide distributors with complete authorization certificates, enabling you to confidently sell SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. stands as an industry titan in the realm of screw air compressors and screw vacuum pumps, boasting over a decade of unparalleled expertise. Our expansive and diverse product portfolio includes normal pressure and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, advanced two-stage compression screw air compressors, specialized screw air compressors for laser cutting, versatile single-tank and double-tank mobile screw air compressors, robust electric mobile screw air compressors, powerful diesel mobile screw air compressors, and efficient screw vacuum pumps, among others.
In our state-of-the-art production facilities, we achieve peak efficiency through the utilization of multi-air compressor assembly lines that are both lean and modern. Our dedicated team of over 50 skilled employees is committed to continuously refining our management systems, including ERP, to ensure reduced lead times and the swift delivery of top-quality products.
Our management philosophy is rooted in excellence, as evidenced by our ISO9001 quality management system certification. We rigorously adhere to stringent quality management protocols and meticulously follow standard quality control processes. Each machine undergoes comprehensive material inspection, rigorous production inspection, and thorough pre-delivery inspection to guarantee superior quality.
In terms of customer service, our pre-sales team offers expert guidance on selecting the perfect air equipment for various facilities, complete with high-level customization options in appearance and configuration, even extending to unique OEM products tailored to meet dealer-specific demands. Our after-sales service is equally robust, featuring a professional sales and service team ready to respond promptly to customer needs.
At Sanzhi (Henan) Compressor Co., Ltd., our unwavering commitment is to provide superior and stable products, fostering long-term relationships with our valued customers. With our promise of efficient delivery, top-notch machinery, and competitive pricing, we stand as a reliable partner in delivering comprehensive compressed air solutions that exceed expectations.
Our factory is strategically located in Xinzheng City, Henan Province, China. We offer convenient pick-up services from Xinzheng International Airport, located just 30 kilometers away, ensuring a seamless visit to our facility. We warmly welcome you to visit our company and witness our commitment to excellence firsthand!
Successful Cases
Frequently Asked Questions (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 industry experience.
Q2. How do you control quality?
A: 1. We rigorously inspect all raw materials to ensure premium quality.
2. Our installation procedures are meticulously controlled for precision.
3. Each machine undergoes a minimum of 5 hours of continuous testing before it leaves the 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 of your location (V/Hz)
4. Any additional accessories needed, such as an air tank, filters, and/or air dryers.
Share these details with us, and we'll craft the perfect 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 a range of voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with customization options available to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage configurations, delivery is within 15 working days after 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 upon receipt of 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 whole 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, followed by regular maintenance every 2000-3000 hours, depending on the operational environment.
Q10. Can machines be run in high-temperature environments?
A: Yes, our machines are designed to operate efficiently in high-temperature environments, with a working temperature range of -20° to 45° (-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely! With our professional design team, we welcome both OEM & ODM orders.
Q12. How long could your air compressor be used?
A: Generally, our air compressors have a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, certainly.
Q14. How about your after-sales service?
A: We provide comprehensive after-sales support, including online installation and commissioning instructions, with our engineers available to assist with training and installation.
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