Discover the cutting-edge 200KW 272HP Screw Air Compressor from Sanzhi (Henan) Compressor Co., Ltd., your leading supplier in China. Offering unbeatable factory prices, our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor is a powerhouse of engineering excellence. Equipped with state-of-the-art German technology centrifugal fans, it delivers unparalleled energy savings and high efficiency. This stationary design is perfect for industrial use, ensuring robust performance and reliability for all your heavy-duty applications.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression scenario, the power needed for single-stage pressure transmission equals the collective power required for multi-stage compression. However, in reality, higher power demands arise due to factors such as transmission power loss, bearing friction, and liquid viscosity cooling effects. By minimizing the compression ratio at each stage, the total power required for multi-stage compression can be significantly lower than that of single-stage compression, thereby enhancing efficiency and reducing unnecessary power consumption.
The two-stage screw air compressor boasts a sophisticated dual rotary screw system. Each stage features an active and a passive screw, with the active screw driving the passive screw via an external power transmission mechanism. The first stage employs a low-pressure screw group, while the second stage utilizes a high-pressure screw group. Sealing air films around each screw facilitate the compression process through three critical phases: suction, pressurization, and exhaust.
First stage compression: The initial stage in the two-stage screw air compressor involves a low-pressure screw group. Here, gas enters the screw compression chamber via the suction valve and undergoes compression as the screw rotor spins at high speed. The compressed gas is then transferred to the second stage for further compression.
Second stage compression: In the second stage, the gas enters a more confined screw space and is subjected to higher pressures and temperatures. The exhaust valve then opens to expel the high-pressure gases from the system, completing the compression process.
Natural air initially enters through the air filter and mixes with a small amount of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure and then cooled significantly through contact with oil mist in the cooling channel. The cooled gas then enters the second-stage rotor, undergoing secondary compression to the final exhaust pressure. The entire process culminates as the compressed gas is expelled through the exhaust valve, completing the air compression cycle.
| 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. |
The centrifugal fan, enriched with cutting-edge German technology, harnesses the power of a high-speed rotating impeller to dynamically accelerate and decelerate air. This revolutionary design enables axial air entry into the impeller, dramatically boosting motor cooling efficiency. Compared to traditional air-cooled fans, this mechanism achieves faster temperature reduction, guaranteeing continuous and uninterrupted compressor operation while significantly extending the compressor's service life.
1) High efficiency of PM motor:The permanent magnet (PM) motor features an expanded constant torque range and a wider weak magnetic range. Its efficiency surpasses regular motors by 20-30%, maintaining high efficiency even when operating away from the rated frequency. This ensures optimal performance under varying conditions, setting a new standard for motor efficiency.
2) Motor maintenance-free:Designed without internal bearings, the permanent magnet motor eliminates the costs associated with motor bearing maintenance and replacement, substantially reducing overall maintenance expenses and enhancing long-term savings.
3) Integrated frequency converter: Featuring China's premier frequency system, our compressor offers a wide speed regulation range with exceptional precision. The system intelligently adjusts to actual gas demand, delivering remarkable energy savings while optimizing operational efficiency. This integration ensures your system runs at peak performance, tailored to your specific needs.
4) No transmission loss: The compressor's direct shaft connection structure with the embedded permanent magnet motor ensures a compact and efficient design. By eliminating the need for couplings and other transmission components, it achieves 100% transmission efficiency, providing unparalleled performance.
5) Variable frequency start and soft startof the motor significantly reduce impact on power grid equipment, preventing damage to electrical systems. This enhances overall system longevity, ensuring a stable and reliable power supply.
6) Reduced energy consumption: With a frequency conversion range spanning from 25% to 100% (compared to the standard 50% to 100%), our system delivers over 30% energy savings compared to fixed-speed compressors. Additionally, it provides approximately 5% more energy savings than typical variable frequency compressors, offering greater benefits for systems with fluctuating gas consumption.
7) Unique two-stage compression air end:Boasting a distinctive design, the two-stage compression screw machine integrates both the first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven to achieve optimal linear speed, maximizing overall compression efficiency and delivering superior performance.
8) Internal spray curtain cooling method: Employing a high-efficiency internal spray curtain cooling technique, this method provides superior cooling effects, significantly reducing compressed air temperatures. This process achieves near-isothermal compression, minimizes pressure loss between stages, lowers the compression ratio, and enhances overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system reduces the compression ratio for each stage, effectively minimizing internal leakage between high and low-pressure ends and improving volumetric efficiency. This results in a more efficient and reliable compression process.
10) Noise reduction:The reduced compression ratio in the two-stage system notably diminishes noise levels, particularly during unloading operations. This ensures a quieter working environment, enhancing workplace comfort and productivity.
11) Easy maintenance and service:Despite its advanced two-stage compression design, the system's other components and structures remain fundamentally similar to those of single-stage compressors. This ensures ease of maintenance and user convenience, providing a hassle-free experience for operators.
1. Unbeatable Pricing Advantage
Enjoy the benefits of our factory-direct pricing, designed to keep your business highly competitive in the marketplace.
2. Direct Factory Transactions
Benefit from our direct factory supply chain, ensuring cost-effective solutions tailored to your needs.
3. Extensive OEM & ODM Services
Leverage our exceptional production and management capabilities to receive top-quality OEM/ODM services customized for you.
4. Tailored Customization Service
We accept non-standard and export orders, offering customizations in voltage, power, pressure, and more. Share your specific needs with us.
5. Acceptance of Small Orders
Start with a small trial order to experience the premium quality of our products firsthand.
6. Swift Delivery
Enjoy the advantage of our prompt and reliable delivery service for all our high-quality products.
7. Complete Authorization
As a distributor, gain confidence with our full authorization certificates to sell SANZHI brand products seamlessly.
Sanzhi (Henan) Compressor Co., Ltd is a premier manufacturer, excelling in the production of screw air compressors and vacuum pumps, with over a decade of industry experience. Our extensive product lineup features state-of-the-art equipment, including normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion models, two-stage compression units, laser cutting screw air compressors, single-tank and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and advanced screw vacuum pumps.
In production, our cutting-edge assembly lines enable the most efficient manufacturing processes. With a dedicated team of over 50 employees, we continuously optimize management systems like ERP to minimize lead times and ensure the prompt delivery of high-quality products.
In management, our factory is ISO9001 certified, adhering to stringent quality standards and rigorous control processes. Every machine undergoes comprehensive inspections, including material checks, production assessments, and pre-delivery evaluations, ensuring only the finest products leave our facility.
In customer service, we excel in pre-sales consultation, offering professional guidance to help customers select the ideal air equipment tailored to their needs. Our high level of customization extends to both appearance and configuration, and we provide OEM services for unique dealer demands. For after-sales support, our professional sales and service team ensures prompt and efficient customer responses.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior, stable products and fostering long-term customer relationships. With efficient delivery, top-quality machines, and competitive pricing, we are your reliable partner for comprehensive compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary pick-up services from Xinzheng International Airport, located just 30 kilometers away-about an hour's drive. We warmly welcome your visit to our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, backed by over 10 years of expertise.
Q2. How do you control quality?
A: 1. We rigorously inspect all raw materials.
2. Installation procedures are meticulously controlled.
3. Each machine undergoes a minimum of 5 hours of continuous testing before leaving our factory to ensure optimal performance.
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 for your country (V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will design a tailored 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 air compressors are available in various voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage orders, you can expect a swift processing time of just 15 working days post-confirmation. For those with non-standard specifications, we invite you to connect with our sales team for detailed timeline arrangements.
Q7. What's the payment term?
A: Our payment terms are structured as follows: an initial 30% T/T deposit, a subsequent 40% T/T before shipment, and the remaining 30% T/T upon receipt of the B/L copy. We accept payments in both USD and RMB.
Q8. How about your warranty?
A: Our warranty policy includes a comprehensive one-year coverage for the entire machine, coupled with an additional two-year warranty specifically for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: Initial maintenance should be performed after the first 500 hours of operation. Subsequent maintenance intervals are set at every 2000-3000 hours, adjusted based on the actual working conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are meticulously engineered to perform efficiently even in high-temperature environments, with an operational temperature range from -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, thanks to our dedicated professional design team. Your custom orders are highly welcome.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast a remarkable lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we ensure the provision of spare parts for your machines.
Q14. How about your after-sales service?
A: Our after-sales service is top-notch, offering comprehensive support including online installation and commissioning instructions. Moreover, our expert engineers are available for both training and installation assistance.
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