Introducing the groundbreaking Low-Pressure Compressor, a stellar innovation exclusively from Sanzhi (Henan) Compressor Co., Ltd.! Embark on a journey of industrial excellence with this unparalleled Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor, a true marvel of modern engineering. This remarkable machine offers an outstanding selection of power options: 15KW, 22KW, 30KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and up to an impressive 250KW. This versatile powerhouse is designed to deliver unmatched efficiency and unwavering reliability in every application. Transform your operations with this state-of-the-art marvel, meticulously engineered to surpass the diverse and demanding needs of today's industries. Immerse yourself in the zenith of air compression technology with this high-capacity powerhouse, perfectly suited for heavy-duty applications. Featuring an advanced two-stage air cooling system, the compressor guarantees optimal performance and durability, making it the premier choice for businesses intent on streamlining operations and boosting productivity. Discover Sanzhi's pioneering innovation, where superior quality blends seamlessly with exceptional performance to redefine industrial expectations.
Internal Structure Frontside: The frontside of our compressor reveals a meticulously crafted layout, engineered for optimal efficiency. Each component is strategically placed to facilitate smooth operation and ease of access for maintenance, embodying the pinnacle of industrial design.
Internal Structure Backside: The backside of our compressor showcases the sophisticated machinery that powers its advanced capabilities. This carefully arranged assembly ensures seamless integration of all mechanical elements, contributing to enhanced reliability and longevity.
Working Principle: At the heart of our compressor lies an advanced working principle, where intelligent design meets engineering excellence. By optimizing each stage of compression, we achieve a balance of power and performance that sets new standards in the industry.
In a sophisticated air compression environment, single-stage and multi-stage compressions initially share similar energy demands. Yet, practical applications reveal nuances - factors like coupling power losses, bearing friction, and fluid viscosity cooling effects heighten energy consumption. By reducing the compression ratio at each stage, these inefficiencies are notably diminished. Consequently, multi-stage compression's overall power consumption markedly outperforms single-stage, ensuring enhanced operation and cost-effectiveness.
Introducing our revolutionary two-stage screw air compressor, featuring a refined twin-stage rotary screw system. This innovative design incorporates an active screw at each phase, driven by an external power transmission. The inaugural stage hosts a low-pressure screw ensemble, while the following stage comprises high-pressure screws, each encased in a sealing air film. During its operation, gas enters a tri-phase cycle - suction, pressurization, and exhaust - achieving unparalleled compression efficiency and performance excellence.
First Stage Compression: Beginning with the first stage, our compressor adeptly draws gas into a low-pressure screw group through the suction valve. In this initial compression phase, the screw rotor's rapid rotation compresses the gas, setting a foundation for the next stage, and seamlessly transitions it onward.
Second Stage Compression: In this advanced stage, the gas is subjected to further compression within a narrower screw space, elevating its temperature and pressure. The process reaches its zenith as the exhaust valve releases the high-pressure gases, completing the compression cycle with unparalleled accuracy and efficacy.
Initially, natural air is drawn through an air filter into the first compression stage, mixing with a trace of lubricating oil. Compressed to an intermediate pressure, the mixture enters a cooling channel, interacting with abundant oil mist to drastically reduce its temperature. The cooled gas then advances to the second-stage rotor for a final compression to the ultimate exhaust pressure. With precision and efficiency, the fully compressed gas exits through the exhaust valve, concluding the cycle.
1) High efficiency of PM motor:Immerse yourself in unparalleled energy efficiency with our groundbreaking permanent magnet motor. This state-of-the-art motor enhances efficiency by an astounding 20-30% compared to conventional motors, courtesy of its expansive constant torque range and sophisticated magnetic dynamics. Even at frequencies beyond its rated capacity, it upholds supreme efficiency, ensuring optimal performance at every turn.
2) Two-stage compression unique air end:Experience innovation at its finest with our advanced two-stage compression screw system, featuring a uniquely designed air end. This integration of dual compression rotors within a singular casing, driven by precision gears at optimal linear speeds, substantially elevates compression efficiency and assures exceptional reliability.
3) Integrated frequency converter: Harness the power of China's premier frequency system, granting a vast and precise speed regulation range. Tailor the frequency effortlessly to meet real-time gas demands, yielding significant energy savings and exceptional performance for every application.
4) Reduce internal leakage:Our pioneering two-stage compression technology smartly reduces the compression ratio per stage, significantly minimizing internal leakage from high to low-pressure ends. This advancement bolsters volumetric efficiency and enhances the compressor's overall performance to new heights.
5) Variable frequency start and the soft startWith variable frequency and soft start features, our motor dramatically reduces the stress on power grid systems, safeguarding electrical components from potential damage and extending their operational life.
6) Reduce energy consumption: Our cutting-edge frequency conversion system operates efficiently across a wide 25% to 100% range, far exceeding the traditional 50% to 100%. It offers over 30% in energy savings compared to fixed-speed compressors and surpasses conventional variable frequency systems by an additional 5% in efficiency, ideal for fluctuating gas demands.
7) No transmission loss: Our highly efficient design, with a direct link between the permanent magnet motor and compressor, eliminates transmission components. This ensures flawless transmission efficiency at 100%, guaranteeing peak, uncompromised performance.
8) Air cooling method: Our superior air cooling system delivers exceptional cooling efficiency, significantly lowering the temperature of compressed air. This method promotes nearly isothermal compression, reducing pressure loss, optimizing the compression ratio, and enhancing overall efficiency.
9)Smart Touch Controller: Our sophisticated smart controller, imbued with cutting-edge intelligence, minimizes manual interventions. Featuring a high-resolution color electronic display, it offers intuitive graphical interfaces, timely maintenance reminders, fault alerts, and safety shutdown notifications for uninterrupted operation.
10)Special Type Intake Valve:The automatic opening ensures smooth engine fuel injection and oil circulation, significantly enhancing system efficiency.
Our system boasts remarkably low oil circuit loss, resulting in an impressive boost in efficiency.
The normally open solenoid valve provides a secure seal during emergency stops, preventing oil injection and maximizing system safety.
11)Excellent Air Filter:Our top-of-the-line air filter provides exceptional air purification through a robust three-stage filtration process, ensuring superior air quality. It efficiently removes steam and dust, surpassing the highest emission standards for eco-friendly operation.
12)High-Quality Soundproof Cotton:Utilizing innovative noise reduction housing combined with premium soundproof cotton, our design dramatically reduces operational vibrations and noise, creating a quieter, more efficient work environment.
13) Motor maintenance-free:Our state-of-the-art maintenance-free permanent magnet motor design completely eliminates the need for internal bearings, thereby doing away with any bearing maintenance and replacement. This innovative breakthrough not only significantly reduces long-term maintenance costs but also boosts the reliability of our compressor systems. As a result, they maintain peak performance for extended periods, ensuring efficiency and longevity in your operations.
14) Noise Reduction:Embrace the tranquility offered by the cutting-edge two-stage compression technology, ingeniously developed by Sanzhi (Henan) Compressor Co., Ltd. This pioneering system is expertly engineered to optimize the compression ratio, significantly reducing operational noise levels, especially during unloading phases. Enjoy a more peaceful and efficient workspace that enhances productivity, thanks to the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Place your trust in Sanzhi's unmatched engineering excellence to elevate your industrial operations to new heights.
15) Effortless Maintenance and Unmatched Service:Introducing our groundbreaking two-stage compressor unit, meticulously crafted by Sanzhi (Henan) Compressor Co., Ltd., which retains the familiar architecture and systems of a single-stage compressor with the only difference in the screw air end. This innovative design ensures that maintenance and service remain as simple and user-friendly as ever. Experience hassle-free maintenance paired with consistent and superior performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Depend on Sanzhi for seamless maintenance and outstanding results.
| 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. |
1. Competitive Pricing
Unlock the gateway to exceptional value with Sanzhi (Henan) Compressor Co., Ltd. By partnering with us, you benefit from exclusive, factory-direct pricing that equips you with a powerful competitive advantage in your industry. Boost your market standing through our strategic pricing superiority, designed to enhance your profitability.
2. Direct Transactions
Streamline your purchasing experience with our cost-effective and reliable direct transaction model. Our precision-engineered logistics pipeline ensures that products are dispatched seamlessly from our factory to your doorstep, delivering substantial savings and a consistently reliable supply chain.
3. OEM & ODM Services
Leverage our cutting-edge production and management expertise to access top-tier OEM and ODM services. Every offering is meticulously tailored to align with your unique requirements, ensuring that all custom specifications are executed with unmatched precision and excellence.
4. Customized Solutions
Excel in managing non-standard and export orders with our bespoke solutions. We cater to varied voltage, power, and pressure requirements, expertly crafting tailored responses to meet your specific specifications. Share your unique needs, and we'll develop solutions that seamlessly align with your exact expectations.
5. Small Order Acceptance
Begin your partnership with us through a small trial order, experiencing firsthand the unmatched quality of our products. Secure your complete satisfaction before scaling up to larger orders, providing you with ultimate peace of mind and confidence in your choice.
6. Rapid Delivery
Experience peace of mind with our swift and reliable delivery services. We prioritize the timely arrival of our premium products, ensuring your operations remain uninterrupted and at peak efficiency.
7. Comprehensive Authorization
Amplify your distribution capabilities with our robust authorization certifications. Market and distribute SANZHI brand products with unwavering confidence, supported by our extensive and rigorous certification process that empowers your success.
Sanzhi (Henan) Compressor Co., Ltd stands as a venerated leader in the sphere of advanced screw air compressors and state-of-the-art vacuum pumps. With an impressive legacy spanning over ten years, we proudly introduce our revolutionary spectrum of products. Our comprehensive collection features both standard and low-pressure screw air compressors, ultra-efficient permanent magnet frequency conversion screw air compressors, and the advanced two-stage compression screw air compressors. We cater to specialized needs with our laser cutting screw air compressors, alongside versatile single-tank and double-tank mobile screw air compressors. Our meticulously engineered electric and diesel mobile screw air compressors promise exceptional performance. Moreover, our cutting-edge screw vacuum pumps are crafted to meet and exceed the most rigorous industrial standards.
Our cutting-edge production facility is equipped with sophisticated multi-air compressor assembly lines, ensuring outstanding efficiency and precision in every unit produced. With a dedicated team of over 50 highly skilled professionals, we are steadfast in optimizing our management systems, including ERP, to dramatically reduce lead times and guarantee the rapid delivery of top-tier products. Our relentless pursuit of innovation places us at the forefront of the industry, setting new benchmarks for excellence.
Our meticulously crafted management systems are designed to uphold the highest standards of quality. With the prestigious ISO9001 quality management system certification, we enforce rigorous quality control procedures. Each machine is subjected to comprehensive inspections throughout various phases, including material selection, production checks, and pre-delivery evaluations, ensuring unparalleled product reliability and excellence. Our unwavering commitment to quality provides you with complete confidence in superior performance.
Experience our outstanding customer service, beginning with our pre-sales team offering expert guidance to select the ideal air equipment for diverse facilities. We provide extensive customization options, including design and configuration adjustments, and deliver tailor-made solutions to meet specific dealer needs through our OEM services. Our experienced sales and support team is always on standby to offer prompt and effective post-sales assistance, ensuring your requirements are met swiftly and accurately. Enjoy unmatched customer care with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering products that reflect superiority, reliability, and stability. Committed to fostering lasting partnerships with our clients, we guarantee timely delivery, top-tier machinery, and competitive pricing. Our mission is to provide the optimal compressed air solution tailored to your needs, delivering unparalleled value, performance, and satisfaction.
Nestled in the scenic Xinzheng City, Henan Province, China, our factory enjoys a convenient location just 30 kilometers from Xinzheng International Airport, making it easily accessible-approximately an hour's drive away. We warmly invite you to visit our facility and experience our exceptional offerings firsthand! Come and discover the unique Sanzhi experience in person.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a highly esteemed manufacturer specializing in screw air compressors, with over a decade of profound industry expertise. Our extensive experience uniquely distinguishes us in the market, showcasing our remarkable capabilities.
Q2. How do you control quality?
A: 1. We perform thorough inspections of our raw materials to ensure superior quality before starting production.
2. Our installation process is meticulously supervised at every stage to guarantee precision.
3. Each machine undergoes a minimum of 5 continuous hours of rigorous testing prior to dispatch, ensuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Your required air delivery capacity (Unit: CFM or m³/Min).
2. The desired working pressure (Unit: PSI, Bar or Mpa).
3. The voltage and frequency specifications of your country of residence (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, or air dryers.
Share this vital information with us, and we will meticulously craft a flawlessly tailored solution just for you! Our unrivaled expertise ensures that we meet your specific needs with unmatched precision and excellence, providing you with the ultimate satisfaction.
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm. This precise conversion highlights the impressive capacity of our compressors, guaranteeing they meet diverse industrial application demands with unparalleled performance and efficiency.
1 KW = 1.34 HP. This power conversion highlights the formidable capability of our compressors, delivering substantial power for consistent and reliable operation even in the most demanding conditions.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. provides a comprehensive range of voltage options, expertly designed to meet global needs. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We excel in offering meticulously customized solutions tailored to your unique electrical specifications, ensuring seamless compatibility and superior performance.
Q6. How long is the delivery time?
A: For standard voltage units, our streamlined processes ensure dispatch within an impressive 15 working days post order confirmation. For non-standard voltage requirements, consult our dedicated sales team to receive a precise delivery schedule, expertly customized to your specific needs.
Q7. What's the payment term?
A: Our payment terms offer maximum convenience: 30% T/T in advance, 40% T/T before shipment, and the final 30% T/T upon receiving the B/L copy. We accommodate payments in both USD and RMB, providing flexibility and ease for seamless transactions.
Q8. How about your warranty?
A: Sanzhi confidently provides a robust warranty, offering peace of mind: one year for the entire machine and two years for the screw air compressor. Consumable spare parts are the only exception, highlighting our commitment to quality and durability.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be conducted after 500 operating hours. Thereafter, maintenance intervals are recommended between 2000-3000 hours, tailored to your specific working environment, ensuring optimal performance and longevity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are engineered for exceptional performance, even under extreme temperatures. They maintain efficient operation within a broad range of -20° to 45° (-4ºF to 113ºF), ensuring reliability and endurance in the most challenging conditions.
Q11. Do you offer OEM service?
A: Yes, we specialize in offering both OEM and ODM services. Our expert design team excels at bringing your custom orders to life, crafting tailor-made solutions that align seamlessly with your specifications, enhancing brand identity and product differentiation.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously designed for exceptional longevity, boasting a remarkable lifespan that typically exceeds 10 years of reliable and efficient service, ensuring sustained productivity and value.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we provide a comprehensive range of premium spare parts, designed to ensure your machines operate seamlessly and maintain peak performance, maximizing uptime and operational efficiency over the long term.
Q14. How about your after-sales service?
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