Introducing the groundbreaking Low-Pressure Compressor, an extraordinary innovation brought to you exclusively by 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 engineering marvel is designed to offer an outstanding array of power options, ranging from a robust 15KW to an impressive 250KW. Engineered with precision and versatility in mind, this powerhouse of reliability and efficiency is truly 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 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, elevating industrial expectations to unprecedented new heights.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of elite air compression technology, Sanzhi (Henan) Compressor Co., Ltd. has unveiled a remarkable solution for optimal energy efficiency. Our expertly engineered single-stage compression mirrors the energy demands of complex multi-stage systems. Typically, factors like coupling power losses, bearing friction, and the fluid's viscosity-induced cooling effects can increase energy consumption. By fine-tuning the compression ratio at each stage with precision, these inefficiencies are significantly reduced. Consequently, the total power usage of our multi-stage compression system is distinctly lower compared to single-stage alternatives, ensuring operations that are not only more polished but also economically astute.
Behold the epitome of cutting-edge innovation from Sanzhi (Henan) Compressor Co., Ltd. with our revolutionary Efficient Twin-Stage Two-Stage Air Cooling Screw Air Compressor. This cutting-edge marvel hosts a meticulously crafted twin-stage rotary screw mechanism, with each stage powered by a robust external transmission system. The first stage features a low-pressure screw group, seamlessly succeeded by a high-pressure screw group in the second stage. Each screw is enveloped by a protective sealing air film, and during operation, the gas is subjected to a refined three-phase cycle of suction, pressurization, and exhaust. This process ensures unparalleled compression efficiency and supreme performance.
First Stage Compression: Embark upon a revolutionary journey with our two-stage screw air compressor. This ingeniously designed machine begins by compressing gas within the low-pressure screw group. The gas is initially drawn into the compression chamber via the suction valve, where the swift rotation of the screw rotor compresses it. After completing this primary compression, the gas seamlessly transitions to the second stage, paving the way for further compression advancements.
Second Stage Compression: Ascending to the pinnacle of compression, the gas is subjected to intensified compression within a more constrained screw space, achieving elevated temperatures and pressures. This phase culminates with the opening of the exhaust valve, allowing the high-pressure gases to exit, thus concluding the entire compression cycle with unparalleled precision and efficacy.
The air embarks on its sophisticated voyage by entering through the air filter into the initial compression stage, blending with a precisely calculated dose of lubricating oil. This fusion is compressed to an intermediate pressure. The gas then transitions into a cooling channel, interacting with a generous oil mist that significantly lowers its temperature. The cooled, compressed gas advances to the second-stage rotor for its ultimate compression to the desired exhaust pressure. Upon reaching this pinnacle, the fully compressed gas exits the system via the exhaust valve, thereby completing the compression cycle with extraordinary precision and efficiency.
1) High efficiency of PM motor:Unleash unparalleled energy savings with our elite permanent magnet motor. Witness a groundbreaking 20-30% efficiency leap over conventional motors. With a vast constant torque range and revolutionary weak magnetic dynamics, it outperforms even its rated frequency, securing unmatched efficiency and optimal performance on every occasion.
2) Two-stage compression unique air end:Prepare to be amazed by our groundbreaking two-stage compression system, featuring a meticulously designed air end. This ingenious system merges dual compression rotors within a single housing. The direct gear-driven rotors function at optimal linear speeds, remarkably boosting compression efficiency while ensuring outstanding reliability.
3) Integrated frequency converter: Harnessing China's premier frequency system, our compressor boasts an expansive speed regulation range with pinpoint precision. Adjust the frequency effortlessly to meet real-time gas demands, delivering outstanding energy savings and enhanced operational performance.
4) Reduce internal leakage:Our cutting-edge two-stage compression technology refines the compression ratio per stage, dramatically curtailing internal leakage from high to low-pressure areas. This breakthrough fosters enhanced volumetric efficiency and elevates the overall performance of the compressor.
5) Variable frequency start and the soft start:Equipped with variable frequency and soft start capabilities, our motor significantly mitigates the impact on power grid systems. This feature safeguards electrical components from potential harm, greatly extending their lifespan.
6) Reduce energy consumption: Our advanced frequency conversion system operates fluidly from 25% to 100%, surpassing the common 50% to 100% range. It delivers over 30% energy savings compared to fixed-speed compressors, with an additional 5% efficiency gain over standard variable frequency systems, perfectly catering to fluctuating gas demands.
7) No transmission loss: Our design, showcasing a direct connection between the permanent magnet motor and compressor, eradicates transmission components. This ensures flawless 100% transmission efficiency, delivering peak, unblemished performance consistently.
8) Air cooling method: Our superior air cooling system offers exceptional cooling power, significantly lowering compressed air temperature. This approach supports near-isothermal compression, minimizes pressure loss, optimizes the compression ratio, and elevates overall efficiency.
9)Smart Touch Controller: Equipped with cutting-edge intelligence, our next-gen smart controller minimizes manual interventions. It features a vibrant color display with intuitive graphical interfaces, maintenance alerts, fault notifications, and safety shutdowns, ensuring seamless, continuous operation.
10)Special Type Intake Valve:Automatic opening facilitates smooth engine fuel injection and oil circulation, enhancing system efficiency.
With significantly reduced oil circuit loss, the system achieves a notable efficiency boost.
The normally open solenoid valve provides a secure seal during emergency stops, preventing oil injection and ensuring maximum system safety.
11)Excellent Air Filter:Our top-tier air filter offers exceptional purification with a robust three-stage filtration system, ensuring superior air quality. It effectively removes steam and dust, surpassing the strictest emission standards for environmentally responsible operations.
12)High-Quality Soundproof Cotton:Featuring state-of-the-art noise reduction housing and premium soundproof cotton, our design dramatically decreases operational vibrations and noise, creating a quieter, more productive work environment.
13) Motor maintenance-free:Explore the future of compressor technology with Sanzhi's groundbreaking innovation: a revolutionary maintenance-free permanent magnet motor design. Our expertly crafted solution eliminates the need for internal bearings, thus removing the inconvenience of bearing maintenance and replacements. This trailblazing advancement significantly reduces long-term upkeep costs, offering you a compressor system with enhanced reliability. Enjoy consistently peak performance over extended durations. Embark on a journey with our cutting-edge solution, delivering unparalleled cost-effectiveness and exceptional dependability.
14) Noise Reduction: Step into tranquility with Sanzhi (Henan) Compressor Co., Ltd.'s avant-garde two-stage compression technology. Meticulously crafted, this superior system optimizes the compression ratio, leading to a notable reduction in noise levels, especially during unloading phases. Enjoy a quieter and more efficient work environment that boosts productivity, all thanks to the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Trust in Sanzhi's unparalleled engineering expertise to enhance the quality of your industrial operations.
15) Effortless Maintenance and Unmatched Service: Welcome to the new era of stress-free maintenance with Sanzhi (Henan) Compressor Co., Ltd.'s innovative two-stage compressor unit. This cutting-edge design retains the familiar structure and systems of a single-stage compressor, with the key innovation in the screw air end. This exceptional design ensures that maintenance and service remain as straightforward and user-friendly as ever. Revel in seamless maintenance combined with consistent, superior performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Depend on 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 a realm of unbeatable value with Sanzhi (Henan) Compressor Co., Ltd. Partnering with us ensures you access factory-direct pricing strategies that elevate your competitive advantage in the industry. Strengthen your market presence with our adept pricing strategies, meticulously designed to amplify your profitability and entrench your market leadership.
2. Direct Transactions
Revolutionize your purchasing journey with our transparent and economical direct transaction model. Our streamlined logistics ensures products are delivered directly from our factory to you, guaranteeing significant cost savings and a reliable supply chain that matches your requirements with unmatched efficiency.
3. OEM & ODM Services
Harness our cutting-edge production and management expertise to benefit from exceptional OEM and ODM services. Our offerings are custom-tailored to seamlessly integrate with your specific requirements, ensuring all customizations are executed with precision and superior quality.
4. Customized Solutions
Excel in managing bespoke and export orders with our custom-crafted solutions. We expertly handle an array of voltage, power, and pressure specifications, developing responses that meet your unique needs. Share your specific requirements, and we will create solutions that perfectly align with your expectations.
5. Small Order Acceptance
Begin your journey with us by placing a small trial order to experience our product quality firsthand. This ensures your utmost satisfaction before committing to larger orders, providing you with peace of mind and unwavering confidence in your investment.
6. Rapid Delivery
Experience the assurance of our fast and dependable delivery services. We prioritize the swift dispatch of our high-quality products, ensuring your operations continue smoothly and at peak efficiency.
7. Comprehensive Authorization
Enhance your distribution potential with our wide-ranging authorization certifications. Market and distribute SANZHI brand products with absolute confidence, backed by our rigorous certification process that fosters your success and accelerates your business growth.
Sanzhi (Henan) Compressor Co., Ltd stands as a distinguished leader in the innovative world of screw air compressors and vacuum pumps. With an illustrious track record spanning over a decade, we are proud to introduce a cutting-edge selection of products. Our comprehensive portfolio includes standard and low-pressure screw air compressors, as well as the revolutionary permanent magnet frequency conversion screw air compressors and advanced two-stage compression screw air compressors. Catering to specialized requirements, our laser cutting screw air compressors deliver precision and reliability. We also offer adaptable single-tank and double-tank mobile screw air compressors. Our electric and diesel mobile screw air compressors are engineered for top-tier performance. Additionally, our cutting-edge screw vacuum pumps are meticulously designed to meet the most rigorous industrial standards.
Our state-of-the-art production facility features advanced multi-air compressor assembly lines, ensuring unparalleled efficiency and precision in every unit. With a dedicated team of over 50 highly skilled experts, we are committed to enhancing our management systems, including ERP, to significantly reduce lead times, ensuring the rapid delivery of premium 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 standards. Accredited with the esteemed ISO9001 quality management system certification, we maintain rigorous quality control procedures. Each machine undergoes comprehensive inspections throughout various stages, from material selection to production checks and pre-delivery evaluations, ensuring unmatched product reliability and excellence. Our unwavering commitment to quality offers you absolute confidence in superior performance.
Discover our exceptional customer service, starting 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 changes, delivering bespoke solutions to meet specific dealer needs through our OEM services. Our professional sales and support team is always on hand to provide swift and effective post-sales assistance, guaranteeing that your requirements are met promptly and accurately. Experience unrivaled customer care with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering products that epitomize superiority, reliability, and stability. Committed to fostering lasting partnerships with our clients, we ensure timely delivery, world-class machinery, and competitive pricing. Our mission is to offer the ideal compressed air solution tailored to your needs, delivering unparalleled value, performance, and satisfaction.
Situated in the scenic Xinzheng City, Henan Province, China, our factory is conveniently located just 30 kilometers from Xinzheng International Airport, providing easy access - only about an hour's drive away. We warmly welcome you to visit our facility and experience our exceptional offerings firsthand! Come and explore the unique Sanzhi experience in person.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a prominent manufacturer specializing in screw air compressors, with over a decade of profound industry expertise. Our extensive experience distinctly sets us apart in the market, highlighting our exceptional capabilities.
Q2. How do you control quality?
A: 1. We conduct comprehensive inspections of our raw materials to ensure superior quality before production begins.
2. Our installation process is meticulously monitored at every phase to ensure precision and accuracy.
3. Each machine undergoes a minimum of 5 continuous hours of rigorous testing prior to dispatch, guaranteeing 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 invaluable information, and we will meticulously craft a flawlessly tailored solution uniquely for you! Our profound expertise ensures that we meet your exact needs with unparalleled precision and excellence, setting new standards for your business success.
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32 cfm. This precise conversion highlights the exceptional prowess of our compressors, empowering them to meet the expansive demands of industrial applications with unmatched performance and peerless efficiency, elevating operational standards.
1KW = 1.34 HP. This power conversion underscores the remarkable capability of our compressors, providing substantial power to ensure stable and dependable operation, even under the most demanding conditions, thereby guaranteeing continuous productivity.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. offers a comprehensive range of voltage options, expertly catering to global needs. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We focus on delivering precisely customized solutions to fulfill your specific electrical requirements, ensuring superior compatibility and remarkable performance.
Q6. How long is the delivery time?
A: For standard voltage units, our streamlined processes guarantee shipment within an impressive 15 working days after order confirmation. For non-standard voltage requirements, reach out to our dedicated sales team for a detailed delivery schedule, tailored specifically to your needs, ensuring flexibility and precision.
Q7. What's the payment term?
A: Our payment terms prioritize 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, offering flexibility and ease for seamless transactions, ensuring a smooth financial experience.
Q8. How about your warranty?
A: Sanzhi provides a comprehensive warranty, delivering peace of mind: one year for the entire machine and two years for the screw air compressor, with consumable spare parts as the exception. This commitment underscores our dedication to quality and durability, ensuring your investment is well-protected.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be conducted after 500 operating hours. Subsequent maintenance is suggested between intervals of 2000-3000 hours, customized to your specific working environment, to ensure optimal performance and longevity, safeguarding your operational integrity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are engineered for outstanding performance even in extreme temperatures. They reliably maintain efficient operation across a broad spectrum of -20° to 45° (-4ºF to 113ºF), guaranteeing durability and dependability in the harshest conditions, ensuring your operational continuity.
Q11. Do you offer OEM service?
A: Yes, we excel in providing both OEM and ODM services. Our expert design team is adept at realizing your custom orders, crafting tailor-made solutions that perfectly align with your specifications, enhancing your brand identity and product differentiation in the competitive market.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously engineered for exceptional longevity, offering an astounding lifespan that typically exceeds 10 years of reliable and efficient service, ensuring sustained productivity and unparalleled value over time.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we provide a comprehensive selection of high-quality spare parts, designed to ensure your machines continue to operate seamlessly and maintain peak performance, thereby maximizing uptime and operational efficiency over the long term, reinforcing your business resilience.
Q14. How about your after-sales service?
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