Introducing the groundbreaking Low-Pressure Compressor, an extraordinary innovation exclusively from Sanzhi (Henan) Compressor Co., Ltd.! Embark on an unrivaled journey of industrial excellence with our spectacular Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor. This exceptional piece of engineering marvel is designed to offer an outstanding array of power options, ranging from 15KW to an impressive 250KW. Engineered with precision and versatility in mind, this powerhouse of reliability and efficiency is set to revolutionize your operations. Experience the transformative power of this state-of-the-art compressor, meticulously crafted to exceed the diverse and demanding requirements of today's industries. Immerse yourself in the pinnacle of air compression technology with this high-capacity machine, ideally suited for heavy-duty applications. With its sophisticated two-stage air cooling system, the compressor ensures unrivaled performance and unmatched longevity, establishing itself as the premier choice for businesses aiming to streamline operations and maximize productivity. Discover the pioneering brilliance of Sanzhi, where superior quality harmonizes seamlessly with exceptional performance to elevate industrial expectations to new heights. Unleash the full potential of your operations with Sanzhi's innovative solutions for a cutting-edge industrial future.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Within this expertly crafted air compression environment lies the secret to achieving top-tier energy efficiency. In single-stage systems, energy demands rival those of multi-stage counterparts. However, real-world phenomena like coupling power losses, bearing friction, and the cooling effects induced by fluid viscosity can lead to elevated energy use. Through skillful optimization of the compression ratio at each stage, these inefficiencies are significantly reduced. As a result, the total power consumption in multi-stage compression is substantially lowered compared to single-stage systems, ensuring a more sophisticated and cost-efficient operation.
Introducing our cutting-edge two-stage screw air compressor, featuring an intricately designed twin-stage rotary screw mechanism. This innovative system employs an active screw in each stage, which drives a passive screw via a robust external power transmission system. The first stage houses a low-pressure screw group, succeeded by a high-pressure screw group in the second stage. Each screw is encased in a protective sealing air film. During operation, the gas undergoes a meticulous three-phase cycle-suction, pressurization, and exhaust-achieving unmatched compression efficiency and stellar performance.
First Stage Compression: The journey begins with our two-stage screw air compressor adeptly compressing gas using the low-pressure screw group. The gas is initially drawn into the compression chamber through the suction valve, where the rapid rotation of the screw rotor compresses it. Following this initial compression, the gas is seamlessly passed to the second stage, paving the way for further advancements in compression.
Second Stage Compression: Progressing to the next stage, the gas undergoes intensified compression within a more compact screw space, reaching higher temperatures and pressures. This process reaches its pinnacle as the exhaust valve opens, permitting the high-pressure gases to exit the system, thus completing the entire compression cycle with unmatched precision and effectiveness.
The journey of air begins as it enters through the air filter into the first compression stage, blending with a precisely measured amount of lubricating oil. This mixture is compressed to an intermediate pressure. Subsequently, the gas proceeds into a cooling channel, where it engages with a substantial oil mist, greatly reducing the temperature. The cooled, compressed gas then advances to the second-stage rotor for its final compression to the ultimate exhaust pressure. Upon reaching this final phase, the fully compressed gas exits the system via the exhaust valve, completing the compression cycle with exceptional precision and efficiency.
1) High efficiency of PM motor:Delve into the remarkable energy efficiency of our cutting-edge permanent magnet motor. Elevate your expectations with a 20-30% boost over conventional models. Through its expansive constant torque range and pioneering weak magnetic dynamics, it retains exceptional efficiency beyond its rated frequency. Experience peak performance in every operation, consistently and reliably.
2) Two-stage compression unique air end:Discover our innovative two-stage compression screw system, crafted with a singularly unique air end. Seamlessly integrating dual compression rotors within a single casing, this system, driven at optimal linear speeds by direct gear-driven rotors, dramatically enhances compression efficiency. Trust in its unmatched reliability for superior performance.
3) Integrated frequency converter: Harness the power of China's leading frequency system with our compressor, offering an expansive range of speed regulation executed with precision. Effortlessly tailor the frequency to align with real-time gas demands, realizing substantial energy savings and bolstered performance.
4) Reduce internal leakage:Experience the prowess of our two-stage compression technology, which reduces the compression ratio per stage to significantly lessen internal leakage from high to low-pressure ends. This advancement results in enhanced volumetric efficiency and exceptional overall compressor performance.
5) Variable frequency start and the soft startBy leveraging variable frequency and soft start capabilities, our motor minimizes the impact on power grid systems. This protective feature shields electrical components from potential harm, extending their longevity and ensuring lasting performance.
6) Reduce energy consumption: Our state-of-the-art frequency conversion system operates impressively from 25% to 100%, surpassing the common 50% to 100% range. Enjoy over 30% energy savings compared to fixed-speed compressors, with an extra 5% efficiency gain over standard variable frequency systems, perfectly tailored for varying gas demands.
7) No transmission loss: Designed for peak efficiency, the direct connection between the permanent magnet motor and compressor eradicates the need for transmission components, delivering flawless 100% transmission efficiency. Experience optimal, uncompromised performance with every use.
8) Air cooling method: Witness the power of our exceptionally efficient air cooling system, which delivers significant cooling prowess. This technology dramatically decreases compressed air temperature, facilitating near-isothermal compression, reducing pressure loss, optimizing the compression ratio, and vastly improving overall efficiency.
9)Smart Touch Controller: Our cutting-edge smart controller is equipped with built-in intelligence to minimize manual operations. The high-resolution color electronic display presents user-friendly graphical interfaces, maintenance reminders, fault alerts, and safety shutdown notifications, ensuring continuous, seamless operation.
10)Special Type Intake Valve:The automatic opening of this valve facilitates smooth engine fuel injection and oil circulation, significantly enhancing the system's overall efficiency.
With remarkably minimal oil circuit loss, our system achieves a substantial enhancement in efficiency.
The normally open solenoid valve ensures a secure seal during emergency stops, effectively preventing oil injection for maximum system safety.
11)Excellent Air Filter:Our exceptional air filter guarantees superior air purification with its robust three-stage filtration system, ensuring premium air quality. It effectively removes steam and dust, exceeding the highest emission standards for an eco-friendly operation.
12)High-Quality Soundproof Cotton:Our advanced design, featuring innovative noise reduction housing paired with high-quality soundproof cotton, significantly diminishes operational vibrations and noise, fostering a quieter, more productive work environment.
13) Motor maintenance-free:Embrace the future of compressor technology with Sanzhi's groundbreaking maintenance-free permanent magnet motor design. By ingeniously eliminating internal bearings, this revolutionary advancement eradicates the need for bearing upkeep and replacements. It significantly reduces long-term maintenance costs, ensuring that our compressor systems deliver exceptional reliability and consistently operate at peak performance for extended durations. Choose our innovation for unparalleled cost-effectiveness and unmatched dependability.
14) Noise Reduction: Experience the tranquility brought to you by Sanzhi (Henan) Compressor Co., Ltd.'s cutting-edge two-stage compression technology. This remarkable system is meticulously designed to optimize the compression ratio, resulting in a significant reduction in operational noise levels, particularly during unloading phases. Enjoy a quieter, more efficient work environment that enhances productivity, thanks to the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Trust in Sanzhi's unparalleled engineering expertise to elevate the standards of your industrial operations.
15) Effortless Maintenance and Unmatched Service: Discover the future of hassle-free maintenance with Sanzhi's innovative two-stage compressor unit, meticulously engineered by Sanzhi (Henan) Compressor Co., Ltd. This state-of-the-art design maintains the familiar architecture and systems of a single-stage compressor, with the only distinction being the screw air end. This inventive design ensures maintenance and service remain as straightforward and user-friendly as ever. Enjoy seamless maintenance paired with consistent, superior performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Rely on Sanzhi for effortless maintenance and exceptional 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 gain access to exclusive, factory-direct pricing, providing you with a formidable competitive edge in your industry. Propel your market presence through our strategic pricing excellence, meticulously crafted to enhance your profitability and solidify your market position.
2. Direct Transactions
Enhance your purchasing experience with our cost-effective and seamless direct transaction model. Our streamlined logistics pipeline ensures that products reach you directly from our factory, promising significant savings and a consistently reliable supply chain, tailored to meet your needs efficiently.
3. OEM & ODM Services
Leverage our advanced production and management capabilities to access exemplary OEM and ODM services. Each offering is designed to align precisely with your bespoke needs, ensuring that all custom requirements are executed with impeccable attention to detail and excellence.
4. Customized Solutions
Excel in managing non-standard and export orders with our bespoke solutions. We expertly cater to diverse voltage, power, and pressure specifications, crafting responses to fulfill your unique specifications. Share your distinct requirements, and we'll develop solutions that seamlessly align with your precise expectations to perfection.
5. Small Order Acceptance
Embark on a journey with us by starting with a small trial order to experience the unparalleled quality of our products firsthand. Ensure your complete satisfaction before moving on to larger orders, providing you with ultimate peace of mind and unwavering confidence in your choice.
6. Rapid Delivery
Enjoy peace of mind with our fast and dependable delivery services. We prioritize the swift arrival of our superior products, ensuring your operations remain uninterrupted and function at maximum efficiency.
7. Comprehensive Authorization
Enhance your distribution potential with our comprehensive authorization certifications. Market and distribute SANZHI brand products with absolute assurance, backed by our extensive and rigorous certification process that empowers your success and fortifies your business growth.
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the realm of advanced screw air compressors and vacuum pumps. With an impressive legacy spanning over a decade of unparalleled expertise, we proudly unveil an innovative spectrum of groundbreaking products. Our expansive collection includes both standard and low-pressure screw air compressors, highly efficient permanent magnet frequency conversion screw air compressors, and the advanced two-stage compression screw air compressors. We cater to specialized demands with our laser cutting screw air compressors, alongside versatile single-tank and double-tank mobile screw air compressors. Our electric and diesel mobile screw air compressors are masterfully engineered for exceptional performance. Furthermore, our cutting-edge screw vacuum pumps are crafted to meet the most rigorous industrial standards.
Our state-of-the-art production facility is equipped with sophisticated multi-air compressor assembly lines, ensuring unparalleled efficiency and precision in every product we create. Driven by an elite team of over 50 highly skilled experts, we are devoted to optimizing our management systems, such as ERP, to dramatically reduce lead times and guarantee the rapid delivery of superior products. Our relentless pursuit of innovation propels us to the forefront of the industry, setting new benchmarks of excellence.
Our meticulously crafted management systems are designed to uphold the highest quality benchmarks. With the prestigious ISO9001 quality management system certification, we enforce rigorous quality control procedures. Each machine undergoes thorough inspections at various stages, including material selection, production checks, and pre-delivery assessments, ensuring unparalleled product reliability and excellence. Our unwavering commitment to quality provides you with absolute assurance of superior performance.
Embark on an unparalleled customer service journey with us, starting with our pre-sales team delivering expert guidance for selecting the ideal air equipment for diverse facilities. We offer comprehensive customization options, including design and configuration modifications, delivering bespoke solutions to meet specific dealer requirements through our OEM services. Our professional sales and support team is always ready to provide swift and effective post-sales assistance, ensuring your needs are met with precision and care. Experience extraordinary customer attention with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, we are unwavering in our dedication to delivering products that exemplify superiority, reliability, and stability. Committed to nurturing lasting partnerships with our clients, we guarantee timely delivery of world-class machinery at competitive pricing. Our mission is to provide the ultimate compressed air solution tailored to your needs, delivering unparalleled value, performance, and satisfaction.
Situated in the picturesque Xinzheng City, Henan Province, China, our factory boasts a convenient location just 30 kilometers from Xinzheng International Airport, making access seamless-approximately an hour's journey. We warmly invite you to visit our facility and witness our exceptional offerings firsthand! Come and experience the unique Sanzhi difference 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 deeply ingrained industry expertise. Our extensive experience defines our market distinction, showcasing our remarkable capabilities.
Q2. How do you control quality?
A: 1. We meticulously inspect our raw materials to ensure exceptional quality before production begins.
2. Our installation process is precisely monitored at every phase to ensure excellence.
3. Each machine undergoes a rigorous minimum of 5 continuous hours of testing before dispatch, assuring 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 craft a flawlessly tailored solution exclusively for you! Our expertise ensures that we meet your exact requirements with precision and excellence.
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32 cfm. This precise conversion showcases the unparalleled prowess of our compressors, enabling them to meet the vast demands of industrial applications with extraordinary performance and efficiency.
1KW = 1.34 HP. This conversion underscores the formidable power capacity of our compressors, ensuring steadfast and dependable operation, even amidst the most demanding scenarios.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. offers an adaptable selection of voltage options, expertly catering to international requirements. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We excel in delivering customized solutions tailored to your specific electrical needs, ensuring seamless compatibility and superior performance.
Q6. How long is the delivery time?
A: For standard voltage units, our streamlined procedures guarantee shipment within an impressive 15 working days after order confirmation. For non-standard voltage requirements, consult our committed sales team to obtain a detailed delivery timeline, meticulously customized to your unique specifications.
Q7. What's the payment term?
A: Our payment terms are crafted for utmost ease: 30% T/T in advance, 40% T/T before shipment, and the last 30% T/T upon receiving the B/L copy. We accept payments in both USD and RMB, offering flexibility and convenience for seamless transactions.
Q8. How about your warranty?
A: Sanzhi confidently provides a comprehensive warranty for peace of mind: one year covering the entire machine and two years for the screw air compressor, with consumable spare parts as the sole exception. This underscores our unwavering commitment to quality and endurance.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be conducted after 500 operating hours. Subsequent maintenance is suggested at intervals of 2000-3000 hours, tailored to your specific working environment, ensuring peak performance and extended lifespan.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are engineered for superior performance, even under extreme temperatures. They sustain efficient operation ranging from -20° to 45° (-4ºF to 113ºF), guaranteeing reliability and durability in the harshest conditions.
Q11. Do you offer OEM service?
A: Indeed, we specialize in both OEM and ODM services. Our proficient design team excels in bringing your custom orders to life, crafting bespoke solutions that perfectly align with your specifications, bolstering brand identity and product distinction.
Q12. How long could your air compressor be used?
A: Our air compressors are expertly engineered for exceptional durability, boasting a remarkable lifespan that typically surpasses 10 years of reliable and efficient service, ensuring ongoing productivity and value.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we supply an extensive array of high-quality spare parts, designed to ensure your machines continue to operate effortlessly and maintain peak performance, maximizing uptime and operational efficiency over the long haul.
Q14. How about your after-sales service?
A: We provide exemplary after-sales support, offering comprehensive online installation and commissioning guidance. If necessary, we can arrange for expert engineers to deliver hands-on training and in-depth installation assistance, ensuring seamless integration and optimal operation.
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