Introducing a groundbreaking marvel in the world of industrial solutions-the Low-Pressure Compressor from Sanzhi (Henan) Compressor Co., Ltd.! Prepare to embark on a journey of unparalleled excellence with our cutting-edge Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor. This extraordinary engineering masterpiece is designed to deliver an impressive suite of power options, ranging from a formidable 15KW to a staggering 250KW. Crafted with meticulous precision and exceptional versatility, this reliable and efficient powerhouse is poised to transform your operational experience. Embrace the transformative essence of this state-of-the-art compressor, purposefully engineered to exceed the diverse and exacting demands of modern industries. Dive into the pinnacle of air compression technology with this high-capacity machine, perfectly tailored for the most robust heavy-duty applications. Featuring a sophisticated two-stage air cooling system, the compressor guarantees unmatched performance and durability, establishing itself as the ultimate choice for businesses striving to streamline operations and boost productivity. Discover the innovative brilliance of Sanzhi, where unparalleled quality seamlessly integrates with extraordinary performance to elevate industrial standards to unprecedented heights.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Dive into the intricately designed landscape of air compression, where exceptional energy efficiency reigns supreme. In single-stage compression, energy usage mirrors that of multi-stage systems. Yet, in reality, factors like coupling power losses, bearing friction, and fluid viscosity-induced cooling occasionally elevate energy consumption. By expertly tuning the compression ratio in each phase, these inefficiencies are significantly minimized. As a result, the overall power use in multi-stage compression is impressively lower than in single-stage, promising a refined, cost-effective operation that meets all your needs.
Behold the marvel of innovation with our cutting-edge two-stage screw air compressor, boasting a beautifully engineered twin-stage rotary screw system. This brilliant configuration features an active screw in each phase, driving a passive screw through a durable external power transmission system. The initial phase includes a low-pressure screw group, succeeded by a high-pressure screw group in the latter stage. Each screw is encased in a protective sealing air film. During its operation, the gas embarks on a sophisticated three-phase journey-suction, pressurization, and exhaust-ensuring extraordinary compression efficiency and remarkable performance that sets new standards.
First Stage Compression: The process initiates with our two-stage screw air compressor, expertly compressing gas using the low-pressure screw group. Gas is initially drawn into the compression chamber through the suction valve, where the rapid rotation of the screw rotor compresses it. After this primary compression, the gas transitions effortlessly to the second stage, setting the stage for further advancement in compression.
Second Stage Compression: Progressing to the next level, the gas undergoes intensified compression within a more compact screw space, achieving higher temperatures and pressures. This process reaches its pinnacle as the exhaust valve opens, allowing the high-pressure gases to exit the system, completing the entire compression cycle with unmatched precision and effectiveness.
The air embarks on its journey by moving through the air filter into the initial compression stage, merging with a precise quantity of lubricating oil. This mixture compresses to an intermediate pressure. Subsequently, the gas enters a cooling channel, interacting with a substantial oil mist, which significantly decreases the temperature. The cooled, compressed gas then continues to the second-stage rotor for its final compression to the ultimate exhaust pressure. At this final juncture, the fully compressed gas exits the system via the exhaust valve, concluding the compression cycle with exceptional precision and efficiency.
1) High efficiency of PM motor:Experience the pinnacle of energy efficiency with our cutting-edge permanent magnet motor, designed to surpass traditional models by an impressive 20-30%. This motor not only boasts a wide constant torque range but also features innovative weak magnetic dynamics, maintaining peak efficiency even beyond rated frequencies for consistently optimal performance.
2) Two-stage compression unique air end:Introducing our revolutionary two-stage compression screw system, which integrates uniquely designed air ends. This system seamlessly combines dual compression rotors within a single casing. Utilizing direct gear-driven rotors at optimal linear speeds, it delivers remarkable compression efficiency and unrivaled reliability.
3) Integrated frequency converter: Equipped with China's leading frequency system, our compressor provides a broad spectrum of precise speed regulation. Users can easily adjust the frequency to match real-time gas demands, resulting in significant energy savings and enhanced performance.
4) Reduce internal leakage:Our pioneering two-stage compression technology minimizes the compression ratio per stage, greatly reducing internal leakage from high to low-pressure ends. This innovation leads to improved volumetric efficiency and exceptional compressor performance.
5) Variable frequency start and the soft startWith variable frequency and soft start capabilities, our motor minimizes impact on power grid systems, protecting electrical components from damage and extending their lifespan.
6) Reduce energy consumption: Our advanced frequency conversion system operates effectively from 25% to 100%, far surpassing the typical 50% to 100% range. It achieves over 30% energy savings compared to fixed-speed compressors and offers an additional 5% efficiency improvement over standard variable frequency systems, ideal for fluctuating gas demands.
7) No transmission loss: Our innovative design, featuring a direct link between the permanent magnet motor and compressor, eliminates the need for transmission components. This guarantees impeccable 100% transmission efficiency, ensuring peak, uncompromised performance every time.
8) Air cooling method: Our state-of-the-art air cooling system delivers extraordinary cooling power, drastically reducing the temperature of compressed air. This approach promotes near-isothermal compression, minimizes pressure loss, optimizes the compression ratio, and enhances overall efficiency.
9)Smart Touch Controller: Our cutting-edge smart controller is engineered with built-in intelligence to minimize manual interventions. Featuring a high-resolution color electronic display, it offers user-friendly graphical interfaces, maintenance alerts, fault warnings, and safety shutdown notifications for seamless, uninterrupted operation.
10)Special Type Intake Valve:The automatic opening supports seamless engine fuel injection and oil circulation, enhancing the system's overall efficiency.
With exceptionally low oil circuit loss, our system significantly boosts efficiency.
The normally open solenoid valve ensures a secure seal during emergency stops, preventing oil injection and ensuring maximum system safety.
11)Excellent Air Filter:Our premium air filter offers unparalleled air purification with a robust three-stage filtration system, ensuring the highest air quality. It effectively removes steam and dust, exceeding the highest emission standards for eco-friendly operations.
12)High-Quality Soundproof Cotton:Featuring an innovative noise reduction housing and high-quality soundproof cotton, our design substantially reduces operational vibrations and noise, cultivating a quieter, more efficient work environment.
13) Motor maintenance-free:Unlock the gateway to the next generation of compressor innovation with our pioneering maintenance-free permanent magnet motor design. This ingenious advancement skillfully eradicates the need for internal bearings, thereby eliminating the hassle of bearing maintenance and replacements. Witness a significant decrease in long-term upkeep costs with our cutting-edge compressor systems, which not only promise enhanced reliability but also ensure sustained peak performance over prolonged periods. Embrace our innovation for exceptional cost-effectiveness and unparalleled dependability.
14) Noise Reduction: Immerse yourself in the serene world crafted by Sanzhi (Henan) Compressor Co., Ltd.'s groundbreaking two-stage compression technology. This exceptional system is expertly designed to optimize the compression ratio, resulting in a substantial decrease in operational noise, especially during unloading phases. Experience a more tranquil and productive work environment, thanks to the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Rely on Sanzhi's unmatched engineering prowess to elevate your industrial operations to new heights of excellence.
15) Effortless Maintenance and Unmatched Service: Step into the future of maintenance simplicity with our revolutionary two-stage compressor unit, meticulously crafted by Sanzhi (Henan) Compressor Co., Ltd. This state-of-the-art design maintains the familiar structure and systems of a single-stage compressor, with the sole enhancement being the screw air end. This innovative approach ensures that maintenance and service are as straightforward and user-friendly as ever. Enjoy hassle-free maintenance combined with consistent, top-tier performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Trust Sanzhi for effortless maintenance and extraordinary 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 unparalleled value with Sanzhi (Henan) Compressor Co., Ltd. Experience the transformative power of exclusive, factory-direct pricing that offers a commanding edge in the competitive landscape. Our strategic price structuring is meticulously crafted to not only boost your profitability but to also elevate your market stature, setting you apart from the competition and ensuring robust growth.
2. Direct Transactions
Enhance your purchasing experience with our efficient and cost-effective direct transaction model. Our expertly streamlined logistics pipeline facilitates direct factory-to-you delivery, ensuring remarkable savings and steadfast reliability. This seamless approach guarantees a supply chain that is both responsive and tailored to your specific needs, ensuring consistent efficiency and satisfaction.
3. OEM & ODM Services
Harness our cutting-edge production and management expertise to benefit from our outstanding OEM and ODM services. Every product is meticulously tailored to fit your specific requirements, ensuring all custom needs are met with exceptional precision and dedication, providing you with top-tier quality and innovation.
4. Customized Solutions
Exceed in handling non-standard and export orders with our tailored solutions. We adapt to a wide array of voltage, power, and pressure specifications, delivering expertly crafted solutions that meet your unique requirements with unrivaled precision. Share your detailed needs with us, and we will develop seamless solutions that perfectly align with your exacting standards.
5. Small Order Acceptance
Embark on your journey with us through an initial small trial order to experience the unmatched quality of our products firsthand. This ensures your complete satisfaction before scaling up to larger orders, providing you with absolute peace of mind and unwavering confidence in your decision to partner with us.
6. Rapid Delivery
Enjoy tranquility with our rapid and reliable delivery services. We prioritize the quick and efficient arrival of our premium products, ensuring your operations remain seamless and running at peak performance, without any interruptions, enhancing your operational efficiency and effectiveness.
7. Comprehensive Authorization
Maximize your distribution capabilities with our extensive authorization certifications. Distribute SANZHI brand products with complete confidence, backed by our thorough and rigorous certification process. This empowers your business, secures your growth, and ensures your success in the marketplace, providing you with a solid foundation for expansion.
Sanzhi (Henan) Compressor Co., Ltd stands as a distinguished leader in the innovative landscape of screw air compressors and vacuum pumps. With over ten years of unrivaled industry prowess, we proudly offer a groundbreaking suite of products. Our comprehensive selection features both standard and low-pressure screw air compressors, highly efficient permanent magnet frequency conversion screw air compressors, and advanced two-stage compression screw air compressors. For specialized applications, we provide laser cutting screw air compressors, along with versatile single-tank and double-tank mobile screw air compressors. Crafted with meticulous attention to detail, our electric and diesel mobile screw air compressors assure superior performance. Furthermore, our cutting-edge screw vacuum pumps are engineered to exceed the most stringent industrial benchmarks.
Our state-of-the-art production facility, furnished with sophisticated multi-air compressor assembly lines, ensures unmatched efficiency and precision in every creation. Our team, composed of over 50 highly skilled experts, is fervently dedicated to refining our management systems, such as ERP, to significantly reduce lead times and guarantee the rapid delivery of premier products. Our relentless drive for innovation places us at the forefront of the industry, setting new benchmarks of excellence.
Our carefully crafted management systems are designed to uphold the highest standards of quality. With the prestigious ISO9001 quality management system certification, we implement rigorous quality control procedures. Each machine is subjected to comprehensive inspections throughout every phase, from material selection to production checks and pre-delivery evaluations, ensuring unparalleled product reliability and excellence. Our unwavering dedication to quality assures you of superior performance.
Experience unmatched customer service, starting with our pre-sales team offering expert assistance to choose the ideal air equipment for diverse facilities. We provide extensive customization options, including design and configuration modifications, delivering bespoke solutions to meet specific dealer needs through our OEM services. Our professional sales and support team is always prepared to offer prompt and efficient post-sales aid, ensuring your needs are addressed swiftly and accurately. Enjoy extraordinary customer care with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, we pledge to deliver products that epitomize excellence, reliability, and stability. Committed to cultivating lasting partnerships with our clients, we promise timely delivery, top-tier machinery, and competitive pricing. Our goal is to supply the ideal compressed air solution tailored to your needs, offering unmatched value, performance, and satisfaction.
Nestled in the scenic Xinzheng City, Henan Province, China, our factory is conveniently situated just 30 kilometers from Xinzheng International Airport, making it easily accessible-approximate an hour's drive away. We heartily invite you to visit our facility and experience our exceptional offerings firsthand! Discover the unique Sanzhi experience in person.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, with more than a decade of profound industry expertise. Our extensive experience sets us apart in the marketplace, reflecting our remarkable capabilities.
Q2. How do you control quality?
A: 1. We perform comprehensive inspections of our raw materials to guarantee exceptional quality prior to initiating production.
2. Our installation process is closely monitored at every stage to ensure precision.
3. Each machine undergoes at least 5 continuous hours of rigorous testing before 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 information with us, and we will craft a flawlessly tailored solution just 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 underscores the remarkable prowess of our compressors, ensuring they meet the vast requirements of industrial applications with unparalleled efficiency and performance.
1KW = 1.34 HP. This power conversion underscores the formidable capability of our compressors to deliver substantial power, guaranteeing stable and reliable operation even in the most demanding scenarios.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. offers a versatile selection of voltage options to adeptly meet global demands. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We excel in delivering bespoke solutions tailored to your specific electrical needs, ensuring optimal compatibility and superior performance.
Q6. How long is the delivery time?
A: For standard voltage units, our streamlined processes ensure delivery within an impressive 15 working days from order confirmation. For non-standard voltage requirements, consult our dedicated sales team for a detailed, custom-tailored delivery schedule.
Q7. What's the payment term?
A: Our payment terms are crafted for utmost convenience: 30% T/T in advance, 40% T/T prior to shipment, and the remaining 30% T/T upon receiving the B/L copy. Payments can be made in both USD and RMB, offering flexibility and ease for smooth transactions.
Q8. How about your warranty?
A: Sanzhi confidently provides a comprehensive warranty, ensuring peace of mind: one year for the entire machine and two years for the screw air compressor, with consumable spare parts as the only exception, which highlights our commitment to quality and longevity.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be conducted after 500 operating hours. Subsequent maintenance is recommended every 2000-3000 hours, tailored to your specific working environment to ensure optimal performance and extended lifespan.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are engineered for outstanding performance, even in extreme temperatures. They maintain efficient operation within a vast range of -20° to 45° (-4ºF to 113ºF), ensuring reliability and durability in the harshest conditions.
Q11. Do you offer OEM service?
A: Yes, we specialize in providing both OEM and ODM services. Our adept design team excels in bringing your custom orders to life, delivering 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 precision-engineered for exceptional longevity, offering an impressive lifespan that typically exceeds 10 years of dependable and efficient service, ensuring ongoing productivity and value.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we provide an all-encompassing range of premium spare parts, meticulously designed to ensure your machines continue to perform flawlessly and maintain peak performance, maximizing uptime and operational efficiency over the long haul.
Q14. How about your after-sales service?
A: We offer exemplary after-sales support, providing detailed online installation and commissioning guidance. If necessary, we can arrange for expert engineers to deliver hands-on training and comprehensive installation assistance, ensuring seamless integration and optimal operation.
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