Unveil the magnificent power of the 200KW 272HP Screw-Compressor, brought to you by Sanzhi (Henan) Compressor Co., Ltd., a premier supplier hailing from China. Immerse yourself in the allure of factory prices on our state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This engineering marvel integrates superior Centrifugal Fan technology, ensuring an extraordinary blend of energy conservation and exceptional efficiency. Tailored for industrial applications, this stationary compressor embodies the pinnacle of performance and innovation.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of air compression, the ideal process suggests that the power for single-stage pressure is equivalent to the combined power for multi-stage compression. Yet, reality introduces additional power demands due to factors like transmission power loss, bearing friction, and the cooling effects of liquid viscosity. By strategically minimizing the compression ratio at each stage, this advanced technology enables a significantly reduced total power requirement for multi-stage compression compared to its single-stage counterpart, thereby elevating efficiency and cutting down on superfluous power usage.
The sophisticated two-stage screw air compressor is designed with a dual rotary screw system. In each stage, there exists an active screw coupled with a passive screw, where the active screw drives the passive one through an adept external power transmission mechanism. The first stage implements a low-pressure screw group, while the second stage harnesses a high-pressure screw group. Ingenious sealing air films envelop each screw, facilitating the compression journey through three pivotal phases: suction, pressurization, and exhaust.
First Stage Compression: The journey begins with the initial stage of the two-stage screw air compressor, leveraging a low-pressure screw group. In this phase, gas smoothly enters the screw compression chamber via the strategically engineered suction valve and undergoes compression as the screw rotor whirls at a stellar speed. This newly compressed gas is then seamlessly transferred to the second stage for further refinement.
Second Stage Compression: As the narrative continues, in the second stage, the gas finds itself in a more compact screw space, where it faces elevated pressures and temperatures. The carefully timed opening of the exhaust valve allows the high-pressure gases to be expelled from the system, thus concluding the sophisticated compression process.
The air compression saga begins as natural air journeys through the air filter, blending with a precise amount of lubricating oil in the compression chamber. This meticulous mixture is compressed to interstage pressure and dramatically cooled as it engages with oil mist in the cooling channel. Subsequently, the cooled gas enters the second-stage rotor, undergoing a secondary compression to reach the ultimate exhaust pressure. This comprehensive process reaches its zenith as the compressed gas is expelled through the exhaust valve, completing the entire air compression cycle with precision 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, a marvel of advanced German engineering, utilizes a high-speed impeller to dynamically transform airflows, enhancing the cooling prowess of the motor. This breakthrough design welcomes air axially into the impeller, vastly boosting motor cooling capabilities. Compared to traditional air-cooled fans, it excels in rapid temperature reduction, ensuring the compressor operates smoothly and prolonging its service life.
1) Unmatched efficiency with PM motor:Our permanent magnet (PM) motor showcases an impressive range of constant torque and an expansive weak magnetic range. Delivering 20-30% more efficiency than conventional motors, the PM motor remains highly efficient across various frequencies, ensuring peak performance in diverse operational conditions.
2) Maintenance-free motor design:Ingeniously crafted without internal bearings, the permanent magnet motor eliminates the costs of bearing upkeep and replacement, paving the way for reduced overall maintenance expenses.
3) Seamless integrated frequency converter: Employing China's leading frequency system, our compressor offers a substantial speed regulation range with unparalleled precision. This system intelligently adapts to fluctuating gas demands, delivering extraordinary energy savings and optimizing operational efficiency.
4) Achieving flawless transmission efficiency: Our compressor's direct shaft connection with the embedded PM motor guarantees a compact and efficient design. By eliminating couplings and other transmission elements, it achieves a remarkable 100% transmission efficiency.
5) Enhanced motor longevity with variable frequency start:The motor's variable frequency start and soft start mechanisms significantly mitigate impacts on electrical grid systems, preventing wear and enhancing the longevity of the entire system.
6) Superior energy efficiency: With a frequency conversion range from 25% to 100%, our system achieves over 30% energy savings compared to fixed-speed compressors, surpassing typical variable frequency models by approximately 5%, especially beneficial in systems with varying gas demands.
7) Innovative two-stage compression system:Our uniquely designed two-stage compression screw machine features integrated first and second-stage rotors within a single casing, each driven by individual gears for optimal speed, maximizing compression efficiency.
8) Cutting-edge internal spray curtain cooling: This high-efficiency internal spray curtain cooling system delivers superior cooling, lowering compressed air temperatures to achieve nearly isothermal compression. It reduces pressure loss between stages, lowers compression ratios, and significantly boosts overall efficiency.
9) Minimized internal leakage:The two-stage compression system reduces the compression ratio for each stage, curtailing internal leakage between pressure ends, thereby enhancing volumetric efficiency.
10) Quieter operations with noise reduction:A lower compression ratio within the two-stage system notably reduces noise levels, especially during unloading, ensuring a more serene work environment.
11) Simplified maintenance and servicing:Despite the sophisticated two-stage compression design, the system maintains structural similarities with single-stage compressors, ensuring straightforward maintenance and user-friendly serviceability.
12) Door Panels are Removable:The unit's casing, crafted from noise-reducing metal plates and lined with high-density sound-absorbing material, complies with international noise standards. The door panel can be opened and detached, providing a 270-degree comprehensive access, facilitating maintenance personnel's entry into the unit, thereby enhancing service efficiency.
1. Exceptional Competitive Pricing
By offering direct ex-factory prices, we empower our customers to maintain a strong competitive edge in the marketplace.
2. Seamless Direct Transactions
Our direct-from-factory supply chain ensures cost-effective solutions without intermediaries, enhancing your bottom line.
3. Extensive OEM & ODM Capabilities
With our robust production and management prowess, we provide exceptional OEM/ODM services precisely crafted to meet your unique needs.
4. Tailored Customization Services
We embrace non-standard and export orders, offering customizations in voltage, power, pressure, and more. Contact us with your distinct specifications.
5. Flexibility in Small Order Acceptance
Initiate a small trial order and witness the outstanding quality of our offerings firsthand.
6. Swift and Reliable Delivery
Benefit from timely delivery of our superior quality products, ensuring your operations run smoothly.
7. Comprehensive Full Authorization
We provide distributors with complete authorization certificates, empowering you to confidently market our prestigious SANZHI brand products.
Successful Cases
At Sanzhi (Henan) Compressor Co., Ltd, we proudly stand as a leading manufacturer with a wealth of over ten years in producing top-tier screw air compressors and vacuum pumps. Our extensive and innovative product range includes cutting-edge normal pressure and low-pressure screw air compressors, energy-efficient permanent magnet frequency conversion models, advanced two-stage compression units, and specialized compressors for laser cutting. Our versatile offerings also cover single-tank and double-tank mobile screw air compressors, both electric and diesel variants, along with sophisticated screw vacuum pumps designed to meet the highest industry standards.
Our efficient production is anchored by state-of-the-art assembly lines that drive the most streamlined and effective manufacturing processes. With a dedicated workforce exceeding 50 skilled employees, we continually refine management systems like ERP, ensuring minimal lead times and the prompt delivery of premium quality products, making us a trusted choice in the industry.
Our management excellence is reflected in our ISO9001 quality management system certification. We uphold rigorous quality standards, implementing meticulous quality control measures. Each machine is subjected to exhaustive inspections, including thorough material checks, detailed production assessments, and comprehensive pre-delivery evaluations, to ensure that only the highest quality products are dispatched to our clients.
Our customer service is distinguished by excellence in pre-sales consultation, providing expert guidance to assist customers in selecting the perfect air equipment tailored to their precise requirements. We offer a high degree of customization in both appearance and configuration, complemented by our OEM services to accommodate unique dealer needs. For after-sales, our proficient sales and service team guarantees rapid and effective customer support, solidifying our commitment to exceptional service.
At Sanzhi (Henan) Compressor Co., Ltd, our dedication to delivering superior and reliable products is unwavering. We prioritize fast delivery of top-quality machines at competitive prices, cultivating long-term relationships with our customers. As your dependable partner, we offer comprehensive compressed air solutions designed to exceed your expectations.
Conveniently located in Xinzheng City, Henan Province, China, our factory is just a short drive from Xinzheng International Airport, approximately 30 kilometers away. We offer complimentary pick-up services to ensure your visit is seamless and warmly welcome you to explore our company.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an experienced manufacturer specializing in screw air compressors, proudly leveraging over a decade of expertise.
Q2. How do you control quality?
A: 1. We conduct thorough inspections of all raw materials to ensure quality from the start.
2. Our installation procedures are strictly monitored for precision and accuracy.
3. Each machine undergoes a minimum of 5 hours of continuous performance testing before it leaves our factory to guarantee optimal efficiency and reliability.
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 craft a customized solution tailored precisely 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 versatile and available in a variety of voltages, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p. We also offer customization to meet your specific voltage needs.
Q6. How long is the delivery time?
A: For standard voltage, your order will be processed and ready for dispatch within a remarkably swift 15 working days from confirmation. For non-standard specifications, please connect with our dedicated sales team to receive a detailed timeline tailored to your specific needs.
Q7. What's the payment term?
A: Our payment terms are structured for your convenience, requiring an initial 30% T/T deposit, followed by another 40% T/T prior to shipment, with the remaining 30% T/T due upon receipt of the B/L copy. We accept payments in both USD and RMB, offering flexibility to suit your financial preferences.
Q8. How about your warranty?
A: Enjoy peace of mind with our robust warranty offerings: a comprehensive one-year warranty covers the entire machine, while an extended two-year warranty is dedicated specifically to the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: For optimal performance, the initial maintenance should be performed after 500 hours of operation. Thereafter, regular maintenance is recommended every 2000-3000 hours, depending on the specific conditions of your working environment to ensure longevity and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are expertly engineered to function optimally even in high-temperature environments, with an impressive working temperature range from -20°C to 45°C (-4°F to 113°F), ensuring reliable performance in diverse climates.
Q11. Do you offer OEM service?
A: Yes, we proudly provide both OEM and ODM services, supported by our expert design team. We warmly welcome custom orders and are dedicated to bringing your unique visions to life with professionalism.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast a durable lifespan that exceeds an impressive 10 years, ensuring long-term reliability and performance for your operations.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we ensure that your machines are well-supported by providing essential spare parts, maintaining peak operation and reducing downtime.
Q14. How about your after-sales service?
A: We are committed to comprehensive after-sales support, featuring online guidance for seamless installation and commissioning. Our skilled engineers are also available for training and on-site installation assistance, ensuring your journey with us is smooth and successful.
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