Discover the revolutionary 200KW 272HP Screw Air Compressor from Sanzhi (Henan) Compressor Co., Ltd., your premier partner in China. Our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor epitomizes engineering brilliance, offered at unbeatable factory prices. Featuring advanced German technology centrifugal fans, it ensures exceptional energy savings and superior efficiency. Designed for stationary industrial use, this powerhouse guarantees robust performance and unwavering reliability for all your heavy-duty applications.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression scenario, the power required for single-stage pressure transmission is equivalent to the sum of the power needed for multi-stage compression. Nevertheless, real-world conditions necessitate higher power due to factors like transmission power loss, bearing friction, and the cooling effects of liquid viscosity. By minimizing the compression ratio at each stage, multi-stage compression becomes significantly more efficient, requiring much less power than single-stage compression and thus reducing unnecessary energy consumption.
The two-stage screw air compressor showcases a refined dual rotary screw mechanism. Each stage includes an active and a passive screw, with the active screw driving the passive one via an external power transmission system. The first stage features a low-pressure screw group, while the second stage utilizes a high-pressure screw group. Sealing air films around each screw enhance the compression process through three essential phases: suction, pressurization, and exhaust.
First stage compression: In the two-stage screw air compressor, the initial stage involves a low-pressure screw group. Gas enters the screw compression chamber through the suction valve and is compressed as the screw rotor spins rapidly. The compressed gas is then forwarded to the second stage for further compression.
Second stage compression: During the second stage, the gas enters a more confined screw space and is exposed to higher pressures and temperatures. The exhaust valve then opens, expelling the high-pressure gases from the system and completing the compression cycle.
Natural air first enters through the air filter, mixing with a small amount of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure and then significantly cooled through contact with oil mist in the cooling channel. The cooled gas then enters the second-stage rotor for secondary compression to the final exhaust pressure. The entire air compression cycle concludes as the compressed gas is expelled through the exhaust valve.
| 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 dynamic power of a high-speed rotating impeller to accelerate and decelerate air efficiently. This revolutionary design allows axial air entry into the impeller, dramatically enhancing motor cooling efficiency. Compared to traditional air-cooled fans, this mechanism achieves rapid temperature reduction, ensuring continuous and uninterrupted compressor operation while significantly extending the compressor's service life.
1) Exceptional Efficiency of PM Motor:The permanent magnet (PM) motor boasts an expanded constant torque range and a broader weak magnetic range. Its efficiency surpasses conventional motors by 20-30%, maintaining superior efficiency even when operating below the rated frequency. This ensures optimal performance under varying conditions, setting a new benchmark for motor efficiency.
2) Maintenance-Free Motor:Designed without internal bearings, the permanent magnet motor eliminates the costs associated with motor bearing maintenance and replacement, significantly 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 requirements.
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 Start:The motor's variable frequency start and soft start mechanisms significantly reduce impact on power grid equipment, preventing damage to electrical systems. This extends 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:Featuring 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:Utilizing 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) Minimized 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 unparalleled factory-direct pricing that ensures your business remains highly competitive within the marketplace.
2. Direct Factory Transactions
Experience the cost-efficient benefits of direct transactions with our factory, tailored specifically to meet your business needs.
3. Extensive OEM & ODM Services
Utilize our exceptional production and management expertise to access premium OEM/ODM services, meticulously customized for your requirements.
4. Tailored Customization Service
We accommodate non-standard and export orders with customizations in voltage, power, pressure, and more. Share your specific needs and let us cater to them.
5. Acceptance of Small Orders
Initiate with a small trial order to directly experience the superior quality of our products.
6. Swift Delivery
Benefit from our prompt and reliable delivery service, ensuring you receive our high-quality products on time, every time.
7. Complete Authorization
As a trusted distributor, gain assurance with our comprehensive authorization certificates, enabling 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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