Discover the groundbreaking 2024 Sanzhi 200kw Screw Air Compressor from Sanzhi (Henan) Compressor Co., Ltd., your premier supplier in China. Offering exceptional factory-direct pricing, our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor stands as a pinnacle of engineering innovation. Featuring advanced German centrifugal fan technology, it delivers remarkable energy savings and superior efficiency. Ideal for industrial applications, this stationary powerhouse is designed for unmatched performance and reliability, making it the ultimate solution for all your heavy-duty needs.
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: In the initial stage of the two-stage screw air compressor, a low-pressure screw group takes center stage. Gas enters the compression chamber via the suction valve and undergoes rigorous compression as the screw rotor spins at high speed. The compressed gas is then seamlessly transferred to the second stage for further enhancement.
Second Stage Compression: Upon entering the second stage, the gas navigates a more confined screw space, facing elevated pressures and temperatures. The exhaust valve then opens to expel the high-pressure gases, thus completing the sophisticated compression process.
Natural air initially enters through a high-efficiency air filter and blends with a small amount of lubricating oil within 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 air compression cycle is consummated as the compressed gas is expelled through the exhaust valve, ensuring optimal performance and efficiency.
| 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 broad 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
Experience the benefits of our competitive factory-direct pricing, meticulously designed to empower your business and give you a winning edge in the marketplace.
2. Direct Factory Transactions
Capitalize on our direct factory supply chain, ensuring you receive cost-effective solutions precisely tailored to your unique needs.
3. Extensive OEM & ODM Services
Tap into our exceptional production and management capabilities for top-tier OEM/ODM services, customized to meet your exact specifications.
4. Tailored Customization Service
We cater to non-standard and export orders, offering bespoke customizations in voltage, power, pressure, and beyond. Share your specific needs with us for a perfect fit.
5. Acceptance of Small Orders
Begin with a small trial order to witness firsthand the superior quality of our products.
6. Swift Delivery
Take advantage of our prompt and reliable delivery services, ensuring quick access to our high-quality products.
7. Complete Authorization
As a distributor, operate with confidence backed by our full authorization certificates, facilitating seamless sales of SANZHI brand products.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a premier manufacturer excelling in the production of screw air compressors and screw vacuum pumps, boasting over a decade of industry experience. Our diverse product portfolio features state-of-the-art screw air compressors and vacuum pumps including normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion models, two-stage compression units, screw air compressors for laser cutting, 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 facilitate the most efficient manufacturing processes. Thanks to our dedicated team of over 50 employees, we continuously optimize management systems such as ERP to minimize lead times and ensure the swift delivery of high-quality products.
In management, our factory proudly holds ISO9001 quality management system certification. We adhere to stringent quality standards, implementing rigorous quality 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 specific needs. Our high level of customization extends to both appearance and configuration, and we provide OEM services to meet 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, your order will be processed within a swift 15 working days after confirmation. For non-standard specifications, kindly reach out to our sales team for detailed timelines.
Q7. What's the payment term?
A: We require 30% T/T upfront, another 40% T/T before shipment, and the final 30% T/T upon receipt of the B/L copy. Payments can be made in both USD and RMB.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty for the entire machine and an extended two-year warranty specifically for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: The initial maintenance should be conducted after 500 hours of operation. Subsequent maintenance is required every 2000-3000 hours, adjusted according to the actual working 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 from -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Yes, we proudly offer OEM and ODM services, facilitated by our professional design team. Your 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.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we will provide spare parts for your machines.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online instructions for installation and commissioning. Additionally, our engineers are available for training and installation assistance.
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