Unleash the Power 200KW 272HP Screw Compressor! As a leading China supplier, we present our state-of-the-art, Factory Priced, Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Designed with High-Quality Centrifugal Fans, this marvel promises Energy Saving, High Efficiency, and unmatched Industrial Use. Perfect for stationary applications, it redefines reliability and performance in the low-pressure air compressor category with an impressive 0.8-1.3 MPa Exhaust Pressure.
Internal Structure Frontside: The frontside internal structure showcases meticulously arranged components, ensuring seamless functionality and enhanced performance.
Internal Structure Backside: The backside internal structure, designed with precision, complements the frontal layout, providing a balanced and efficient airflow system.
Working Principle: Discover the advanced mechanism behind our compressor, where innovation meets efficiency to deliver top-notch performance consistently.
In an ideal air compression process, the power required for single-stage pressure transmission equates to the cumulative power needed for multi-stage compression. However, real-world scenarios introduce factors such as coupling transmission power loss, bearing friction coefficients, and the cooling effects of liquid viscosity, which increase actual working power. By decreasing the compression ratio at each stage, we effectively minimize useless power, ensuring that the total power required for multi-stage compression is less than that for single-stage compression, thereby enhancing overall efficiency.
The two-stage screw air compressor integrates a sophisticated two-stage rotary screw system. Each stage features an active and a passive screw. The active screw, powered externally, drives the passive screw. The first stage employs a low-pressure rate screw group, while the second stage utilizes a high-pressure rate screw group. Surrounding each screw is a sealing air film, which, during rotation, compresses the gas through suction, pressurization, and exhaust processes, ensuring comprehensive and efficient compression.
First Stage Compression: The initial phase uses a low-pressure rate screw group where the gas is drawn into the screw compression chamber via the suction valve. The high-speed rotating screw rotor gradually compresses the gas, which is then transferred to the second stage for further compression.
Second Stage Compression: In this phase, the gas enters a more confined screw space, undergoing compression at higher temperatures and pressures. The exhaust valve then opens, efficiently expelling the high-pressure gases from the system.
Natural air, filtered at the first stage, merges with a small amount of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure and subsequently cooled via a channel where it encounters oil mist, significantly lowering the temperature. The cooled gas then enters the second-stage rotor for additional compression, reaching the final exhaust pressure. The compressor then releases the fully compressed gas through the exhaust valve, completing the entire, efficient compression process.
| Sanzhi (Henan) Compressor Co,. Ltd. |
| Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor |
| Model |
Power |
Exhaust pressure |
Free air delivery* of unit at working pressure |
Voltage |
Frequency |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
V |
Hz |
Inch |
Kg |
L*W*H(mm) |
| SZ15VF-II |
15 |
0.5 |
4.00 |
380 |
50 |
G1½ |
660 |
1450*780*1180 |
| 0.8 |
3.00 |
| 1.3 |
2.00 |
| SZ19VF-II |
18.5 |
0.5 |
5.00 |
380 |
50 |
G1½ |
680 |
1450*780*1180 |
| 0.8 |
4.00 |
| 1.3 |
3.80 |
| 1.6 |
2.20 |
| SZ22VF-II |
22 |
0.5 |
6.60 |
380 |
50 |
G1½ |
730 |
1650*880*1280 |
| 0.8 |
4.20 |
| 1.3 |
3.00 |
| 1.6 |
2.50 |
| SZ30VF-II |
30 |
0.5 |
7.00 |
380 |
50 |
G1½ |
980 |
2000*1260*1560 |
| 0.8 |
6.40 |
| 1.3 |
4.00 |
| 1.6 |
3.00 |
| SZ37VF-II |
37 |
0.5 |
10.00 |
380 |
50 |
G1½ |
1080 |
2000*1260*1560 |
| 0.8 |
7.00 |
| 1.3 |
5.50 |
| 1.6 |
4.00 |
| SZ45VF-II |
45 |
0.5 |
13.00 |
380 |
50 |
G2 |
1980 |
2000*1260*1560 |
| 0.8 |
10.00 |
| 1.3 |
6.50 |
| 1.6 |
5.00 |
| SZ55VF-II |
55 |
0.5 |
17.00 |
380 |
50 |
G2 |
2180 |
2150*1300*1730 |
| 0.8 |
12.00 |
| 1.3 |
8.60 |
| 1.6 |
5.00 |
| SZ75VF-II |
75 |
0.5 |
20.00 |
380 |
50 |
G2 |
2280 |
2150*1300*1730 |
| 0.8 |
16.50 |
| 1.3 |
11.00 |
| 1.6 |
9.00 |
| SZ90VF-II |
90 |
0.5 |
24.00 |
380 |
50 |
DN65 |
3200 |
2700*1920*1820 |
| 0.8 |
20.00 |
| 1.3 |
14.00 |
| 1.6 |
11.00 |
| SZ110VF-II |
110 |
0.5 |
28.00 |
380 |
50 |
DN65 |
3360 |
2700*1920*1820 |
| 0.8 |
24.50 |
| 1.3 |
18.00 |
| 1.6 |
14.00 |
| Due to product updates, the above parameters are subject to deviation in kind. |
Our centrifugal fan employs a high-speed rotating impeller to swiftly accelerate and decelerate air. This allows air to enter the impeller axially, rapidly cooling the motor more efficiently than typical air-cooled fans. As a result, the compressor can run continuously, significantly extending its lifespan.
1) High efficiency of PM motor:Our PM motors boast a wider constant torque and weak magnetic range, enhancing efficiency by 20-30% compared to standard motors. Even when operating away from the rated frequency, they maintain consistently high efficiency.
2) Motor maintenance-free:With no internal bearings, our permanent magnet motors eliminate the need for costly bearing maintenance and replacement.
3) Integrated frequency converter:Utilizing China's premier frequency system, our compressors offer extensive speed regulation and high precision. The frequency modulation is finely tuned to actual gas demand, resulting in remarkable energy savings.
4) No transmission loss:The integrated shaft design directly connects the permanent magnet motor and the compressor, creating a compact structure without couplings or other transmission parts, ensuring 100% transmission efficiency.
5) Variable frequency start and soft startof the motor minimize the impact on power grid equipment, preventing damage to electrical systems.
6) Reduce energy consumption:Our variable frequency system ranges from 25% to 100% (compared to the usual 50% to 100%), yielding over 30% energy savings compared to fixed-speed compressors, and approximately 5% more than ordinary variable frequency compressors. The greater the fluctuation in system gas consumption, the more pronounced the energy savings.
7) Two-stage compression unique air end:The two-stage compression design incorporates both the first-stage and second-stage rotors in a single casing, driven by gears to achieve optimal linear speed and higher compression efficiency.
8) Internal spray curtain cooling method:Our advanced internal spray curtain cooling method offers superior cooling, significantly lowering the temperature of compressed air. This approach achieves near-isothermal compression, reduces pressure loss between stages, lowers the compression ratio, and enhances efficiency.
9) Reduce internal leakage:The two-stage compression reduces the compression ratio for each stage, minimizing internal leakage from high to low-pressure ends, thereby improving volumetric efficiency.
10) Noise reduction:Two-stage compression significantly lowers the compression ratio, reducing noise levels, particularly during unloading.
11) Easy maintenance and service:Aside from the screw air end, our two-stage compressor units share similar systems and structures with single-stage units, simplifying maintenance and user operations.
1. Unbeatable Price Advantage
We offer factory-direct pricing to our customers, ensuring you remain highly competitive in the marketplace.
2. Seamless Direct Deal
Our entire product range is supplied directly from the factory, giving you access to more cost-effective solutions.
3. Comprehensive OEM & ODM Services
Our robust production and management capabilities enable us to offer exceptional OEM and ODM services tailored to your needs.
4. Tailored Customisation Services
We accept non-standard, export, and custom orders for voltage, power, pressure, etc. Contact us with your unique requirements.
5. Flexibility with Small Orders
Initiate a small trial order to evaluate the superior quality of our products firsthand.
6. Swift and Reliable Delivery
Experience high-quality products delivered in a timely manner, ensuring your supply chain remains efficient.
7. Comprehensive Authorization
For our distributors, we provide complete authorization certificates, empowering you to sell SANZHI brand products 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, boasting over a decade of expertise. Our extensive product portfolio includes a diverse range of solutions such as normal pressure/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, electric and diesel mobile screw air compressors, and screw vacuum pumps.
In production, we achieve unparalleled efficiency through our lean and modern multi-air compressor assembly lines. With the dedication of over 50 skilled employees, we continuously enhance our management systems, such as ERP, to minimize lead times and ensure the rapid delivery of superior products.
In management, our factory proudly upholds the ISO9001 quality management system certification. We steadfastly adhere to rigorous quality management protocols, meticulously implementing standard quality control processes. Every machine undergoes thorough material inspection, production inspection, and pre-delivery inspection to guarantee exceptional quality.
In customer service, we excel in pre-sales support by offering expert guidance for selecting air equipment tailored to various facilities. We provide high levels of customization, including unique designs and configurations to meet specific dealer demands, including OEM services. For after-sales, our professional sales and service team is dedicated to delivering prompt and reliable support to our customers.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering top-tier and reliable products to foster long-term relationships with our clients. With our promise of efficient delivery, superior quality machines, and competitive pricing, you can count on us for a comprehensive and satisfying compressed air solution.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary pick-up from Xinzheng International Airport, which is approximately a 30-kilometer, one-hour drive to our facility. We warmly welcome you to visit our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a reputable manufacturer of screw air compressors with over 10 years of industry experience.
Q2. How do you control quality?
A: 1. We conduct stringent inspections of all raw materials.
2. Our installation procedures are meticulously controlled.
3. Every machine undergoes a minimum of 5 hours of continuous testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/Min)
2. The necessary working pressure (Unit: PSI, Bar, or Mpa)
3. The voltage and frequency of your country of residence (V/Hz)
4. Whether additional accessories are needed, such as an air tank, filters, and/or air dryers.
Provide us with this information, and we will offer you the best solution tailored to your needs!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage air compressor?
A: Sanzhi offers air compressors with voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We can also customize according to your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage, your order will be ready within 15 working days after confirmation. For non-standard options, please reach out to our sales team for precise details and timelines.
Q7. What's the payment term?
A: A flexible payment structure is in place: 30% T/T in advance, 40% T/T before shipment, and the remaining 30% T/T upon presentation of the B/L copy. Payments in both USD and RMB are accepted.
Q8. How about your warranty?
A: We offer a comprehensive warranty: one year for the entire machine and two years for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: The initial maintenance should be carried out after 500 hours of operation. Subsequent maintenance is recommended every 2000-3000 hours, taking into account the actual operating environment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, 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: Yes, we provide both OEM & ODM services, supported by our professional design team. Custom orders are highly welcome.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a lifespan exceeding 10 years with proper maintenance.
Q13. Will you provide some spare parts for the machines?
A: Yes, we definitely provide spare parts for our machines to ensure smooth and continuous operation.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online guidance for installation and commissioning. Additionally, our engineers are available to assist with on-site training and installation.
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