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. Experience the future of air compression with Sanzhi's 2024 model, where advanced technology meets superior craftsmanship, making it the ideal choice for enterprises seeking sustainable and cost-effective solutions.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an optimal air compression environment, the energy required for single-stage pressure transmission is equivalent to the cumulative energy needed for multi-stage compression. However, real-world scenarios introduce higher energy demands due to factors like transmission power losses, bearing friction, and the cooling effects of liquid viscosity. By lowering the compression ratio at each stage, the overall energy required for multi-stage compression can be significantly reduced compared to single-stage compression, thereby maximizing efficiency and minimizing excess energy consumption.
The two-stage screw air compressor is engineered with a cutting-edge dual rotary screw system. Each compression stage includes an active and a passive screw, with the active screw propelling the passive screw through an external power transmission mechanism. The first stage comprises a low-pressure screw group, while the second stage involves a high-pressure screw group. Air sealing films around each screw facilitate the compression process across three critical phases: suction, pressurization, and exhaust.
First stage compression: The initial phase of the two-stage screw air compressor features a low-pressure screw group. Gas is drawn into the screw compression chamber via the suction valve and is compressed as the screw rotor spins at high velocity. The compressed gas is then routed to the second stage for further compression.
Second stage compression: During this phase, the gas enters a more confined screw space, subjected to higher pressures and temperatures. The exhaust valve subsequently opens to release the high-pressure gases from the system, thus completing the compression process.
Natural air is initially filtered and then mixed with a small amount of lubricating oil within the compression chamber. This mixture is compressed to interstage pressure and is significantly cooled through interaction with oil mist in the cooling channel. The cooled gas then moves to the second-stage rotor for further compression to the final exhaust pressure. The process concludes with the expulsion of the compressed gas through the exhaust valve, thereby 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. |
Our centrifugal fan, enriched with groundbreaking German technology, employs a high-speed rotating impeller to dynamically accelerate and decelerate air. This revolutionary design facilitates axial air entry into the impeller, dramatically enhancing motor cooling efficiency. Compared to traditional air-cooled fans, our advanced mechanism achieves faster temperature reduction, ensuring continuous and uninterrupted compressor operation while significantly extending its service life.
1) High efficiency of PM motor:Our permanent magnet (PM) motor boasts an expanded constant torque range and a wider weak magnetic range. Its efficiency surpasses that of regular motors by an impressive 20-30%, maintaining optimal performance even when operating away from the rated frequency. This ensures superior efficiency under varying conditions, setting a new benchmark for motor performance.
2) Motor maintenance-free:Built without internal bearings, our permanent magnet motor eliminates the costs associated with motor bearing maintenance and replacement. This design substantially reduces overall maintenance expenses, delivering significant long-term savings.
3) Integrated frequency converter: Equipped with China's leading 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 ensures your system runs at peak performance, tailored to your specific needs.
4) No transmission loss: Featuring a direct shaft connection structure with an embedded permanent magnet motor, our compressor 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 startOur motor's variable frequency start and soft start 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 offers approximately 5% more energy savings than typical variable frequency compressors, providing greater benefits for systems with fluctuating gas consumption.
7) Unique two-stage compression air end:Our two-stage compression screw machine features a unique design, integrating both 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, our 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. This enhances volumetric efficiency, resulting in a more efficient and reliable compression process.
10) Noise reduction:The reduced compression ratio in our 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, our 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 unparalleled benefits of our factory-direct pricing, meticulously crafted to keep your business at the forefront of the competitive marketplace.
2. Direct Factory Transactions
Benefit from our seamless direct factory supply chain, delivering cost-effective and customized solutions tailored precisely to your unique needs.
3. Extensive OEM & ODM Services
Leverage our superior production and management expertise to receive world-class OEM/ODM services, perfectly customized to meet your expectations.
4. Tailored Customization Service
We welcome 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 the premium quality and exceptional performance of our products firsthand.
6. Swift Delivery
Experience the advantage of our prompt and reliable delivery service, ensuring timely arrival of all our high-quality products.
7. Complete Authorization
As a valued distributor, gain confidence and credibility with our comprehensive authorization certificates, allowing seamless sale of SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. is a distinguished manufacturer celebrated for its exceptional screw air compressors and screw vacuum pumps. With over a decade of unparalleled industry expertise, we offer an expansive product range encompassing normal pressure and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, efficient two-stage compression screw air compressors, specialized screw air compressors for laser cutting, versatile single-tank and double-tank mobile screw air compressors, both electric and diesel mobile screw air compressors, and advanced screw vacuum pumps.
Our cutting-edge production facility embodies the epitome of efficiency, thanks to our sophisticated, lean multi-air compressor assembly lines. Supported by a dedicated team of over 50 skilled employees, we continuously refine our management systems, including ERP, to ensure reduced lead times and prompt delivery of superior-quality products.
Dedicated to excellence, our factory proudly holds ISO9001 certification. We meticulously adhere to rigorous quality management standards, ensuring each machine undergoes comprehensive inspections, from material checks to production evaluations and pre-delivery assessments, guaranteeing unrivaled quality.
We excel in customer service, providing expert pre-sales and after-sales support. Before purchase, we offer professional guidance to help you select the perfect air equipment and provide extensive customization, including bespoke OEM products tailored to meet specific dealer needs. Our committed sales and service team is always on standby to promptly address any post-purchase concerns.
At Sanzhi (Henan) Compressor Co., Ltd., we pledge to deliver superior, dependable products while nurturing long-lasting customer relationships. Our dedication to swift delivery, exceptional quality, and competitive pricing makes us your reliable partner for premium compressed air solutions.
Situated in the bustling city of Xinzheng, Henan Province, China, our factory is conveniently located just 30 kilometers from Xinzheng International Airport. We provide complimentary transportation from the airport to our facility, making your visit seamless and enjoyable. We eagerly anticipate your visit!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer of screw air compressors, boasting over 10 years of industry expertise.
Q2. How do you control quality?
A: 1. We perform stringent inspections on all raw materials.
2. We strictly control our installation procedures.
3. Each machine undergoes a minimum of 5 hours of continuous testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. Desired air delivery capacity (Unit: CFM or m³/Min)
2. Required working pressure (Unit: PSI, Bar or Mpa)
3. Voltage and frequency in your country (V/Hz)
4. Additional accessories needed, such as air tanks, filters, or air dryers.
Provide us with this information, and we will customize the perfect solution for you!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: Sanzhi air compressors come in 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We also offer further customization options to suit your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage configurations, we ensure a rapid delivery time of just 15 working days following order confirmation. For those with unique or non-standard requirements, our dedicated and knowledgeable sales team is eager to provide tailored assistance.
Q7. What's the payment term?
A: We accept a payment structure of 30% T/T in advance, 40% T/T before shipment, and the final 30% T/T upon receipt of the B/L copy. Transactions can be seamlessly conducted in both USD and RMB.
Q8. How about your warranty?
A: We offer an all-encompassing one-year warranty for the entire machine and an extended two-year warranty specifically for the screw air compressor, excluding consumable spare parts to ensure continuous reliability.
Q9. What about the maintenance?
A: The initial maintenance is recommended after 500 hours of operation. Thereafter, routine maintenance should be scheduled every 2000-3000 hours, adjusted according to the specific working environment to maintain optimal performance.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are expertly engineered to perform efficiently in high-temperature settings, designed to operate within a temperature range from -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services. Thanks to our expert design team, we welcome and excel at fulfilling customized orders to meet your unique requirements.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously built for longevity and are designed to provide efficient service for over 10 years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we supply essential spare parts to ensure the smooth and uninterrupted operation of your machines.
Q14. How about your after-sales service?
A: We provide a comprehensive after-sales service, which includes online installation and commissioning instructions. Additionally, our skilled engineers are available for onsite training and installation support to ensure your complete satisfaction.
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