Introducing our state-of-the-art Permanent Magnet Variable Frequency Drive Screw Compressor, a marvel of modern engineering brought to you by Sanzhi (Henan) Compressor Co., Ltd. Available in an extensive array of power options: 7.5kW, 11kW, 15kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, and 250kW, this compressor is a testament to exceptional energy efficiency and unwavering durability. Engineered to cater to diverse industrial demands with supreme precision and dependability, our 2024 Hot Variable Frequency Drive Screw Compressor is the ultimate solution for all your air compression needs.
| 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 leverages an advanced pressure sensor to instantly detect the actual pressure and air consumption in the system. Through the precise control facilitated by the electric and frequency converter, it adjusts the motor speed without altering the torque of the air compressor motor. This regulation ensures the output of compressed air is aligned with demand. When system air consumption drops, the compressor's output surpasses the need, prompting the inverter air compressor to slow down the motor, thereby decreasing compressed air output. Conversely, when air consumption increases, the motor speed accelerates, augmenting the compressed air output to sustain stable system pressure.
Utilizing cutting-edge vector control technology, this compressor unit is capable of operating across a wide range of speeds while ensuring minimal motor temperature rise. This technology guarantees the motor delivers the necessary torque to drive the air compressor seamlessly. The motor current, consisting of the torque component generated by the motor, is efficiently distributed by vector control technology. This allows optimal compensation for voltage drops at the motor end, enabling maximum torque output without increasing current usage.
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 utilized for air compression. This results in impressive energy efficiency and notable cost savings.
Cost Reducing
The innovative 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 additional investment in this advanced compressor can be recouped within 1 to 2 years, making it a smart, economical choice.
Steady Pressure
Employing the PID (proportional, differential, integral) method, this advanced compressor ensures precise adjustment to maintain stable system pressure, enhancing overall operational reliability.
Life Extension
Frequency conversion starts dramatically reduce the impact on power grids and machinery, significantly prolonging the service life of the equipment. This results in less downtime and lower maintenance costs.
Top Quality
Crafted with the finest imported bearings and the latest rotor profile research, this compressor features a large rotor, substantial displacement, low speed, and low noise. These attributes collectively enhance efficiency and elevate production quality, delivering superior performance every time.
1. Unbeatable Pricing
Benefit from our ex-factory pricing, ensuring your market position remains highly competitive and profitable.
2. Direct, Hassle-Free Transactions
Enjoy direct-from-factory products, providing you with more cost-efficient solutions.
3. All-Inclusive OEM & ODM Services
Leveraging our robust production and management capabilities, we offer unparalleled OEM and ODM services customized to your unique needs.
4. Tailored Customization Options
We welcome non-standard export orders and can customize voltage, power, pressure, and more. Contact us for your specific requirements.
5. Small Order Flexibility
Initiate a small trial order to witness the premium quality of our products firsthand.
6. Rapid Delivery
Receive our top-tier products with swift delivery times, ensuring the seamless operation of your business.
7. Full Distributor Authorization
Distributors will be granted a full authorization certificate, empowering them to market and sell SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd proudly stands as a leading manufacturer, specializing in screw air compressors and screw vacuum pumps, with over a decade of unparalleled expertise. Our extensive and versatile product range includes normal pressure and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, efficient two-stage compression screw air compressors, specialized screw air compressors for laser cutting, single-tank and double-tank mobile screw air compressors, as well as electric and diesel mobile screw air compressors and advanced screw vacuum pumps.
Our manufacturing capabilities are exceptional, utilizing state-of-the-art, multi-air compressor assembly lines that ensure peak efficiency. Backed by a devoted team of over 50 skilled employees, we constantly refine our management systems, including ERP, to significantly reduce lead times and promptly deliver top-quality products.
Our unwavering commitment to quality is evidenced by our ISO9001 quality management system certification. We meticulously adhere to stringent quality control protocols, ensuring every machine undergoes rigorous material inspection, production inspection, and thorough pre-delivery inspection before reaching our valued customers.
In terms of customer service, our pre-sales team offers expert guidance in choosing the optimal air equipment for diverse facilities, providing extensive customization options in both appearance and configurations. We excel in crafting bespoke products to meet the unique needs of our dealers through comprehensive OEM services. Additionally, our professional sales and service team ensures rapid, reliable after-sales support for our esteemed customers.
At Sanzhi (Henan) Compressor Co., Ltd, our dedication to delivering superior, reliable products is unwavering. We prioritize building long-term relationships with our clients by emphasizing efficient delivery, exceptional machinery quality, and competitive pricing, making us your trusted partner for comprehensive compressed air solutions.
Strategically located in Xinzheng City, Henan Province, China, our factory is highly accessible. We offer complimentary pick-up services from Xinzheng International Airport to our facility, which is a convenient 30-kilometer journey, taking approximately one hour. We warmly invite you to visit us and experience our hospitality!
Frequently Asked Questions
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, with over a decade of industry excellence.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials.
2. Our installation procedures adhere to stringent standards.
3. Each machine is subjected to a continuous 5-hour performance test before dispatch.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (CFM or m³/Min)
2. Necessary working pressure (PSI, Bar, or Mpa)
3. Voltage and frequency details for your location (V/Hz)
4. Need for additional accessories like air tanks, filters, or air dryers.
Provide us with these details, and we'll propose the most optimal solution for you!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for your air compressors?
A: Sanzhi offers standard voltages of 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can tailor to your specific needs.
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 are the payment terms?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. We accept payments in both 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: First maintenance is required after 500 hours, with subsequent maintenance every 2000-3000 hours, contingent on the operating environment.
Q10. Can your machines run in high-temperature environments?
A: Yes, our machines are engineered to function in high-temperature conditions, with a working range of -20° to 45°C (-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely! With our expert design team, we warmly welcome both OEM & ODM orders.
Q12. How long can your air compressors be used?
A: Typically, our air compressors boast a lifespan exceeding 10 years.
Q13. Will you provide spare parts for the machines?
A: Yes, undoubtedly.
Q14. How about your after-sales service?
A: We offer online guidance for installation and commissioning, and can arrange for our engineers to assist with training and installation.
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