Introducing an extraordinary leap in industrial innovation, exclusively from Sanzhi (Henan) Compressor Co., Ltd. - the groundbreaking Low-Pressure Compressor! Embrace an unparalleled journey of excellence with our phenomenal Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor. This engineering masterpiece offers a remarkable range of power options, from a solid 15KW to an impressive 250KW, designed with precision and versatile adaptability. This reliable and efficient powerhouse is crafted to transform your operations, setting new benchmarks in the industry. Experience the revolutionary capabilities of this state-of-the-art compressor, thoughtfully engineered to meet the varied and stringent demands of contemporary industries. Delve into the pinnacle of air compression technology with this high-capacity marvel, perfect for heavy-duty applications. Featuring a sophisticated two-stage air cooling system, it guarantees exceptional performance and longevity, making it the top choice for businesses striving to optimize operations and boost productivity. Discover the pioneering excellence of Sanzhi, where superior quality seamlessly aligns with exceptional performance, raising industrial expectations to extraordinary new heights.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Within this expertly engineered air compression realm, Sanzhi (Henan) Compressor Co., Ltd. unveils the key to unparalleled energy efficiency. Our single-stage compression demands energy usage akin to multi-stage systems. However, real-world dynamics such as coupling power losses, bearing friction, and the viscosity-induced cooling effects of the fluid elevate energy consumption. Through meticulous optimization of the compression ratio at each stage, these inefficiencies are markedly reduced. Consequently, the total power expenditure of our multi-stage compression system is significantly less than that of single-stage alternatives, ensuring a more refined and economically astute operation.
Behold the zenith of innovation by Sanzhi (Henan) Compressor Co., Ltd., the avant-garde Efficient Twin-Stage Two-Stage Air Cooling Screw Air Compressor. This marvel boasts a meticulously fine-tuned twin-stage rotary screw mechanism, featuring an active screw in each phase powered by a robust external power transmission system. The initial phase is decorated with a low-pressure screw ensemble, seamlessly succeeded by a high-pressure screw ensemble in the subsequent stage. Each screw is enveloped in a protective sealing air film. During operation, the gas undergoes an intricate three-phase cycle of suction, pressurization, and exhaust, offering unparalleled compression efficiency and extraordinary performance.
First Stage Compression: Embark on a revolutionary journey with our two-stage screw air compressor as it adeptly compresses gas using the low-pressure screw ensemble. Initially, the gas is drawn into the compression chamber via the suction valve, where the swift rotation of the screw rotor compresses the gas. Following this primary compression, the gas transitions smoothly to the second stage, paving the way for further compression enhancement.
Second Stage Compression: Progressing to the next echelon, the gas experiences intensified compression within a more compact screw space, attaining elevated temperatures and pressures. This culminates as the exhaust valve opens, allowing the high-pressure gases to exit the system, thus completing the entire compression cycle with unparalleled precision and effectiveness.
The air commences its sophisticated journey by passing through the air filter into the initial compression stage, merging with a precisely calculated amount of lubricating oil. This blend is compressed to an intermediate pressure. Subsequently, the gas advances into a cooling channel, interacting with a generous oil mist, significantly reducing the temperature. The cooled, compressed gas then advances to the second-stage rotor for ultimate compression to the desired exhaust pressure. Upon reaching this final phase, the fully compressed gas exits the system through the exhaust valve, concluding the compression cycle with remarkable precision and efficiency.
1) High efficiency of PM motor:Unleash the future of energy efficiency with our top-tier permanent magnet motor. It delivers a remarkable 20-30% efficiency enhancement compared to traditional models. With its expansive constant torque range and advanced weak magnetic dynamics, it ensures supreme efficiency, maintaining peak performance even beyond its rated frequency.
2) Two-stage compression unique air end:Witness the groundbreaking innovation of our two-stage compression system, featuring a uniquely engineered air end. This sophisticated system seamlessly integrates dual compression rotors within a single casing, operating at optimal linear speeds through direct gear-driven mechanisms, significantly boosting compression efficiency and ensuring outstanding reliability.
3) Integrated frequency converter: Featuring China's leading frequency system, our compressor boasts a broad speed regulation range with precise control capabilities. It empowers users to adjust the frequency to perfectly match real-time gas demands, resulting in exceptional energy savings and enhanced operational efficiency.
4) Reduce internal leakage:Our state-of-the-art two-stage compression technology optimizes compression ratios at each stage, significantly cutting down internal leakage from high to low-pressure zones. This advancement massively boosts volumetric efficiency and elevates overall compressor performance to new heights.
5) Variable frequency start and the soft startEquipped with both variable frequency and soft start capabilities, our motor minimizes the impact on power grid systems. This feature effectively safeguards electrical components against damage, considerably extending their lifespan and ensuring consistent performance.
6) Reduce energy consumption: Experience unparalleled energy savings with our advanced frequency conversion system, seamlessly operating between 25% and 100%-exceeding the conventional 50% to 100% range. It achieves over 30% energy savings compared to fixed-speed compressors, and delivers an extra 5% efficiency over standard variable frequency systems, making it ideal for fluctuating gas demands.
7) No transmission loss: Our design, featuring a direct connection between the permanent magnet motor and the compressor, eradicates transmission components. This ensures flawless 100% transmission efficiency, delivering peak, unblemished performance every single time.
8) Air cooling method: Discover the power of our elite air cooling system, providing extraordinary cooling efficiency, drastically lowering compressed air temperatures. This method supports near-isothermal compression, minimizes pressure loss, optimizes the compression ratio, and significantly enhances overall efficiency.
9)Smart Touch Controller: Our cutting-edge smart controller with embedded intelligence minimizes the need for manual interventions. With its high-resolution color display, it offers an intuitive graphical interface, maintenance alerts, fault notifications, and safety shutdowns to ensure uninterrupted, smooth operation.
10)Special Type Intake Valve:Its automatic opening ensures seamless engine fuel injection and oil circulation, significantly enhancing overall system efficiency.
Through drastically reduced oil circuit loss, our system achieves a significant efficiency boost.
The normally open solenoid valve guarantees a secure seal during emergency stops, preventing oil injection and ensuring maximum system safety.
11)Excellent Air Filter:Our superior air filter offers unmatched purification through a robust three-stage filtration system, ensuring exceptional air quality. It effectively filters out steam and dust, surpassing the strictest emission standards for eco-friendly operations.
12)High-Quality Soundproof Cotton:Incorporating cutting-edge noise reduction housing and premium soundproof cotton, our design dramatically reduces operational vibrations and noise, creating a quieter and more productive workspace.
13) Motor maintenance-free:Step into the future of compressor technology with the revolutionary maintenance-free permanent magnet motor design from Sanzhi. Expertly engineered to eliminate internal bearings, this innovation not only removes the ongoing hassle of bearing upkeep but also significantly lowers long-term maintenance expenses. Our compressor systems thus offer enhanced reliability, delivering consistent, high-performance operation over extended periods. Embrace this trailblazing solution for unrivaled cost efficiency and unsurpassed dependability.
14) Noise Reduction: Immerse yourself in the tranquility offered by Sanzhi (Henan) Compressor Co., Ltd.'s advanced two-stage compression technology. This remarkable system is meticulously crafted to optimize the compression ratio, leading to a substantial reduction in operational noise levels, particularly during unloading phases. Experience a quieter, more productive work environment that boosts efficiency, courtesy of the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Trust in Sanzhi's unrivaled engineering brilliance to elevate your industrial operations to new heights.
15) Effortless Maintenance and Unmatched Service: Step into a future of hassle-free maintenance with our groundbreaking two-stage compressor unit, carefully crafted by Sanzhi (Henan) Compressor Co., Ltd. This visionary design maintains the familiar structure and systems of a single-stage compressor, with a key innovation in the screw air end. This inventive approach ensures that maintenance and service are as straightforward and user-friendly as ever. Enjoy seamless upkeep paired with consistent, superior performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Trust Sanzhi for effortless 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 a world of unrivaled value with Sanzhi (Henan) Compressor Co., Ltd. Partner with us to experience factory-direct pricing that propels you to new heights in the competitive landscape. Elevate your market stature through our astute pricing strategy, designed meticulously to amplify your profitability and fortify your market dominance.
2. Direct Transactions
Revolutionize your purchasing journey with our cost-efficient direct transaction framework. Our streamlined logistics transport products directly from our factory to you, ensuring significant savings while maintaining a dependable supply chain that unfailingly meets your requirements with matchless efficiency.
3. OEM & ODM Services
Leverage our cutting-edge production and management proficiency to unlock superior OEM and ODM services. Every offering is customized to seamlessly integrate with your unique specifications, guaranteeing that all bespoke requirements are executed with unparalleled precision and excellence.
4. Customized Solutions
Master the art of managing non-standard and export orders with our bespoke solutions. We expertly address a diverse range of voltage, power, and pressure specifications, crafting responses that flawlessly meet your specific requirements. Share your unique needs, and we'll tailor solutions that perfectly align with your exact expectations.
5. Small Order Acceptance
Begin your journey with us through a small trial order and witness the extraordinary quality of our products firsthand. Secure your utmost satisfaction before scaling up to larger orders, providing you with ultimate peace of mind and unwavering confidence in your choice.
6. Rapid Delivery
Experience tranquility with our fast and dependable delivery services. We prioritize the swift arrival of our top-tier products, ensuring your operations remain uninterrupted and perform at optimal efficiency.
7. Comprehensive Authorization
Enhance your distribution potential with our all-encompassing authorization certifications. Confidently market and distribute SANZHI brand products, backed by our extensive and rigorous certification process that empowers your success and drives your business to new growth heights.
Sanzhi (Henan) Compressor Co., Ltd. stands proudly as a premier innovator in the realm of screw air compressors and vacuum pumps. With over a decade of excellence, we present a sophisticated range of pioneering products. Our extensive collection includes both standard and low-pressure screw air compressors, alongside the groundbreaking permanent magnet frequency conversion screw air compressors and the state-of-the-art two-stage compression screw air compressors. Our laser cutting screw air compressors are tailored for precision, catering to specialized industrial needs. Additionally, we offer versatile single-tank and double-tank mobile screw air compressors, engineered to provide unparalleled performance, whether electric or diesel-powered. Our advanced screw vacuum pumps are crafted to meet the most exacting industrial criteria.
Our cutting-edge production facility boasts advanced multi-air compressor assembly lines, ensuring unmatched efficiency and precision in every product. With a dedicated team of over 50 highly skilled professionals, we are committed to refining our management systems, including ERP, to drastically reduce lead times, ensuring the swift delivery of superior products. Our relentless innovation propels us to lead the industry, setting new standards of excellence.
Our meticulously developed management systems are designed to uphold the highest quality standards. Accredited with the prestigious ISO9001 quality management system certification, we enforce rigorous quality control protocols. Each unit undergoes comprehensive inspections at every stage, from material selection to production checks and pre-delivery evaluations, ensuring unmatched reliability and excellence. Our steadfast commitment to quality instills absolute confidence in superior performance.
Experience our outstanding customer service, beginning with our pre-sales team who provide expert guidance to choose the perfect air equipment for diverse facilities. We offer extensive customization options, including design and configuration changes, delivering bespoke solutions to meet specific dealer needs through our OEM services. Our dedicated sales and support team is always available to provide swift and effective post-sales assistance, ensuring that your requirements are met promptly and accurately. Discover unparalleled customer care with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering products that epitomize superiority, reliability, and stability. We strive to build enduring partnerships with our clients, ensuring timely delivery, world-class machinery, and competitive pricing. Our mission is to provide the ideal compressed air solution tailored to your needs, offering unparalleled value, performance, and satisfaction.
Nestled in the picturesque Xinzheng City, Henan Province, China, our factory is conveniently situated just 30 kilometers from Xinzheng International Airport, affording easy access - only about an hour's drive away. We warmly invite you to visit our facility and witness our exceptional offerings firsthand! Come and immerse yourself in the unique Sanzhi experience.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer, specializing in screw air compressors, with over a decade of profound industry expertise that distinctly sets us apart in the market, showcasing our exceptional capabilities.
Q2. How do you control quality?
A: 1. We conduct comprehensive inspections of our raw materials to ensure outstanding quality before production begins.
2. Our installation process is meticulously overseen at every phase to ensure precision and accuracy.
3. Each machine undergoes a minimum of five 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.
Provide us with this information, and we will meticulously craft a flawlessly tailored solution uniquely for you! Our expertise guarantees that we meet your exact needs with precision and excellence.
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32 cfm. This precise conversion highlights the extraordinary capabilities of our compressors, enabling them to effortlessly satisfy the high demands of industrial applications with unmatched performance and exceptional efficiency.
1KW = 1.34 HP. This power conversion illustrates the impressive strength of our compressors, delivering substantial power to guarantee stable and reliable operation, even under the most challenging conditions.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. provides a wide array of voltage solutions, expertly tailored to meet global demands. Select from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our focus is on delivering precisely customized solutions to fulfill your unique electrical requirements, ensuring superior compatibility and top-notch performance.
Q6. How long is the delivery time?
A: For standard voltage units, our efficient processes ensure shipment within an impressive 15 working days after order confirmation. For non-standard voltage requirements, contact our dedicated sales team for a delivery schedule meticulously customized to your specifications.
Q7. What's the payment term?
A: Our payment terms are designed for your convenience: 30% T/T in advance, 40% T/T before shipment, and the final 30% T/T upon receiving the B/L copy. We accept payments in USD and RMB, providing flexibility and ease for smooth transactions.
Q8. How about your warranty?
A: Sanzhi provides an extensive warranty, offering peace of mind: one year for the entire machine and two years for the screw air compressor, with consumable spare parts as exceptions. This commitment underscores our dedication to quality and durability.
Q9. What about the maintenance?
A: Initial maintenance is vital and should be conducted after 500 operating hours. Subsequent maintenance is recommended at intervals of 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 meticulously engineered to deliver outstanding performance even in extreme temperatures. They consistently maintain efficient operation across a wide range of -20° to 45° (-4ºF to 113ºF), ensuring durability and dependability in the harshest conditions.
Q11. Do you offer OEM service?
A: Yes, we specialize in providing both OEM and ODM services. Our skilled design team is proficient in realizing your custom orders, crafting tailor-made solutions that perfectly align with your specifications, enhancing brand identity and product differentiation.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously engineered for extraordinary longevity, offering an impressive 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 offer a comprehensive selection of high-quality spare parts, ensuring your machines continue to operate seamlessly and maintain peak performance, maximizing uptime and operational efficiency over the long term.
Q14. How about your after-sales service?
A: We provide exemplary after-sales support, offering detailed online guidance for installation and commissioning. If needed, we can arrange for expert engineers to offer hands-on training and thorough installation assistance, ensuring seamless integration and optimal operation.
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