Experience unparalleled performance with our Permanent Magnet Variable Frequency Screw Type Air Compressor. Available in an extensive range of power ratings-including 7.5kW, 11kW, 15kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, and 250kW-this compressor is engineered to meet all your industrial needs with exceptional efficiency and 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 an advanced pressure sensor to instantly detect the actual system pressure and air consumption. Through precise control by the electric and frequency converter, it adjusts the motor speed without altering the torque of the air compressor motor. This regulation of system pressure ensures that compressed air is delivered precisely according to demand. If system air consumption decreases and the compressor's air supply exceeds this, the inverter air compressor reduces its rotational speed, thereby lowering compressed air output. Conversely, it increases the motor speed to boost compressed air output, maintaining stable system pressure.
Adopting state-of-the-art vector control technology, this unit operates efficiently across a wide range of speeds while minimizing motor temperature rise. This technology ensures sufficient torque to drive the air compressor smoothly. The motor current, composed of torque and other vector components, is optimally distributed. Vector control techniques effectively compensate for voltage drops at the motor end, enabling maximum torque output without increasing current, thus enhancing overall 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 effectively utilized for air compression. This results in substantial energy savings.
Cost Reducing
The permanent magnet frequency conversion technology reduces energy costs by over 35%, and the life cycle cost of compressors can drop by an average of 22%. Typically, the additional cost of the compressor is recoverable within 1 to 2 years.
Steady Pressure
Using the precise PID (Proportional, Integral, Differential) method, the compressor is finely adjusted to maintain consistent system pressure.
Life Extension
Frequency conversion starts reduce the impact on the power grid and machinery, significantly extending the service life of the compressor.
Top Quality
Engineered with top-quality imported bearings and cutting-edge rotor profiles, featuring large rotors, significant displacement, low speed, and low noise. These enhancements lead to improved efficiency and superior production quality.
1. Price advantage
Customers benefit from direct ex-factory prices, ensuring they remain highly competitive.
2. Direct deal
Our products are supplied straight from the factory, offering unmatched cost-effectiveness.
3. OEM & ODM services
Leverage our factory's robust production and management capacities for tailored OEM/ODM solutions.
4. Customised service
We accommodate non-standard, export, and custom voltage/power/pressure orders. Contact us for any specific needs.
5. Accept small order
Initiate a small trial order to evaluate the superior quality of our products.
6. Fast delivery
Experience timely delivery of our high-quality products.
7. Complete authorisation
Distributors receive full authorization certificates, empowering them to sell our SANZHI brand with confidence.
Sanzhi (Henan) Compressor Co., Ltd. is a distinguished manufacturer specializing in the production of high-quality screw air compressors and screw vacuum pumps. With over a decade of industry expertise, our extensive 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, electric and diesel mobile screw air compressors, and efficient screw vacuum pumps.
Our production capabilities are unparalleled, utilizing lean and modern multi-air compressor assembly lines to achieve unprecedented efficiency. Supported by a dedicated team of over 50 employees, we continually enhance management systems such as ERP, ensuring reduced lead times and rapid delivery of top-notch products.
In terms of management, our factory proudly holds the ISO9001 quality management system certification. We are unwavering in our commitment to maintaining a rigorous quality management system, strictly adhering to standard quality control processes. Each machine undergoes meticulous material inspection, production inspection, and pre-delivery inspection, ensuring only the finest products reach our customers.
Our customer service is exemplary. In the pre-sales phase, we provide expert guidance to help customers select the ideal air equipment for their facilities, offering extensive customization options, including appearance and configuration. We also excel in OEM solutions, creating unique products tailored to meet the specific demands of our dealers. Our professional sales and service team is always ready to respond promptly to any customer inquiries or needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering superior, stable, and reliable products, fostering long-term relationships with our valued customers. With our promise of efficient delivery, high-quality machines, and competitive pricing, we are your trusted partner for all your compressed air solution needs.
Our state-of-the-art factory is strategically located in Xinzheng City, Henan Province, China. We provide convenient transportation from Xinzheng International Airport to our facility, a quick 30-kilometer journey of about one hour. We warmly welcome you to visit our company and witness our excellence firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, boasting over a decade of unrivaled expertise.
Q2. How do you control quality?
A: 1. We implement rigorous inspections on all raw materials.
2. Our installation processes are meticulously supervised.
3. Each unit undergoes a minimum of 5 hours of continuous operation testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. Desired air delivery capacity (Units: CFM or m³/Min)
2. Required working pressure (Units: PSI, Bar or Mpa)
3. Voltage and frequency specifications of your region (V/Hz)
4. Need for any additional accessories such as air tanks, filters, or air dryers.
Share these details with us, and we'll propose 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 voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and custom options tailored to your needs.
Q6. How long is the delivery time?
A: For standard voltage models, delivery is 15 working days post-order confirmation. For non-standard models, please consult our sales team.
Q7. What's the payment term?
A: Payment terms are 30% T/T upfront, 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 on the entire machine and a two-year warranty specifically for the screw air compressor, excluding consumable parts.
Q9. What about the maintenance?
A: Initial maintenance is required after 500 hours of operation, followed by regular maintenance every 2000-3000 hours, depending on actual working conditions.
Q10. Can machines be run in high-temperature environment?
A: Yes, our machines are designed to operate efficiently in high-temperature environments, with a working temperature range of -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Absolutely, our expert design team welcomes both OEM and ODM orders.
Q12. How long could your air compressor be used?
A: Typically, our compressors have a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, we definitely provide spare parts.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online installation and commissioning guidance, and can arrange for engineering assistance for training and installation.
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