Experience unmatched efficiency and exceptional power with the Permanent Magnet Variable Frequency Screw Type Air Compressor from Sanzhi (Henan) Compressor Co., Ltd. Our range includes power options from 7.5kw to 250kw, ensuring a perfect fit for any industrial requirement: 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, and 250kw. Engineered for reliability and peak performance, this heavy-duty solution is built to boost your productivity. Elevate your operations with our cutting-edge compressors, designed for optimal efficiency and durability.
| 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 utilizes a sophisticated pressure sensor to immediately detect the precise system pressure and air consumption requirements. Through the advanced control of the electric and frequency converter, it adjusts the motor speed without altering the motor torque, thereby regulating system pressure to deliver compressed air as needed. When air consumption decreases and the compressor's output surpasses system demand, the inverter reduces the rotational speed to align production with consumption, maintaining system stability. Conversely, when demand increases, the motor speed is elevated to ensure a consistent and stable supply of compressed air.
Employing state-of-the-art vector control technology, our unit can operate efficiently across a broad range of speeds while minimizing motor temperature rise. This ensures optimal torque delivery for smooth compressor operation. The motor current is divided into torque-generating components and other current values by vector control technology. This sophisticated system compensates for voltage drops at the motor end, allowing maximum torque output without increasing the current, thereby enhancing operational efficiency.
Advantages of Permanent Magnet Variable Frequency Screw Air Compressor
High Efficiency and Energy Savings
Frequency conversion regulation significantly reduces the actual power consumption of the compressor, ensuring that energy is effectively utilized for air compression.
Cost Reduction
Permanent magnet frequency conversion technology reduces energy costs by over 35%, while the overall lifecycle cost of the compressor is lowered by an average of 22%. The additional investment in the compressor is typically recouped within 1 to 2 years.
Stable Pressure
Using the PID (Proportional, Integral, Differential) method, our compressor precisely adjusts to maintain stable system pressure, ensuring consistent performance.
Extended Lifespan
The frequency conversion startup reduces the impact on the power grid and machinery, significantly extending the service life of the compressor.
Top Quality
Top-quality imported bearings and the newest rotor profile development, featuring large rotors, significant displacement, low speed, and minimal noise, enhance both efficiency and production quality.
1. Price Advantage
We provide customers with unbeatable ex-factory prices, ensuring our clients remain highly competitive in their markets.
2. Direct Deal
All products are supplied directly from our factory, ensuring you receive the most cost-effective solutions.
3. OEM & ODM Services
Our factory boasts strong production and management capabilities, ready to offer tailored OEM/ODM services to meet your specific needs.
4. Customized Service
We welcome non-standard, export, and customized orders for voltage, power, pressure, and more. Reach out to discuss your unique requirements.
5. Small Order Acceptance
Start with a small trial order to experience firsthand the superior quality of our products.
6. Fast Delivery
Expect high-quality products delivered to you in a timely manner.
7. Complete Authorization
For distributors, we provide full authorization certificates, empowering you to sell our prestigious SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. is a renowned manufacturer with over a decade of expertise in crafting top-tier screw air compressors and screw vacuum pumps. Our diverse product range includes 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, as well as electric and diesel mobile screw air compressors, and highly efficient screw vacuum pumps.
Our cutting-edge production facilities are meticulously designed to maximize efficiency, featuring advanced multi-air compressor assembly lines that are both streamlined and contemporary. With the dedicated efforts of over 50 skilled employees, we continually refine our management systems, including ERP, ensuring minimized lead times and the swift delivery of superior products.
Our commitment to excellence is validated by our ISO9001 certification, reflecting our strict adherence to rigorous quality management standards. We maintain stringent quality control processes at every stage-from material inspection through production to pre-delivery checks-guaranteeing that each machine exiting our facility meets the highest quality benchmarks.
In terms of customer service, we provide comprehensive pre-sales support, assisting clients in selecting the optimal air equipment for their specific needs. Our extensive customization options cover both appearance and specifications, allowing us to produce unique, OEM products tailored to the precise requirements of our dealers. Additionally, our professional sales and service team is always ready to offer prompt after-sales support, ensuring complete customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd., we are dedicated to delivering exceptional and dependable products, nurturing long-term partnerships with our clients. With our efficient delivery schedules, premium-quality machines, and competitive pricing, we are your trusted partner for all-encompassing compressed air solutions.
Situated in Xinzheng City, Henan Province, China, our factory is conveniently located and easily accessible. We offer a hassle-free pick-up service from Xinzheng International Airport, which is approximately 30 kilometers away, translating to about an hour's drive. We warmly invite you to visit our company and experience our commitment to excellence firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a premier manufacturer of screw air compressors, proudly showcasing over a decade of industry expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections of all raw materials.
2. Stringent controls are maintained over installation procedures.
3. Each machine undergoes a mandatory 5-hour 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 specific to your country (V/Hz)
4. Any additional accessories needed such as air tanks, filters, or air dryers.
Provide this information, 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 a wide range of voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Customization is also available to cater to specific requirements.
Q6. How long is the delivery time?
A: For standard voltage models, we ensure delivery within 15 working days post order confirmation. For non-standard models, please consult our sales team.
Q7. What's the payment term?
A: Our payment terms include 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 comprehensive one-year warranty for the entire machine and a two-year warranty specifically for screw air compressors, excluding consumable spare parts.
Q9. What about the maintenance?
A: Initial maintenance should occur after 500 hours of operation, with subsequent maintenance every 2000-3000 hours, considering the actual operating environment.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines are engineered to perform in high-temperature conditions, with an operational temperature range of -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Certainly, we warmly welcome both OEM and ODM orders, supported by our professional design team.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, we will provide necessary spare parts.
Q14. How about your after-sales service?
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