Introducing the groundbreaking Low-Pressure Compressor by Sanzhi (Henan) Compressor Co., Ltd.! Presenting the state-of-the-art High Capacity Durable Two-Stage Permanent Magnet VFD Screw Compressor, an engineering masterpiece set to redefine industrial performance and reliability. With an impressive spectrum of power options that include 15KW, 22KW, 30KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and 250KW, this versatile powerhouse ensures unparalleled efficiency and steadfast operation. Propel your business into the future with this advanced technological marvel, precisely crafted to meet the diverse and demanding needs of today's progressive industries.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of air compression excellence, the energy needed for single-stage pressure transmission ideally matches the combined energy demands of multi-stage compression. However, in practical applications, elements such as coupling power losses, bearing friction, and cooling effects from fluid viscosity result in increased power usage. By reducing the compression ratio at each stage, these inefficiencies are significantly minimized. Thus, the total power consumption for multi-stage compression is effectively lower than that of single-stage alternatives.
Embrace the future of air compression with our cutting-edge two-stage screw air compressor! Masterfully engineered with a modern twin-stage rotary screw mechanism, this groundbreaking system features an active screw in each stage, driving a passive screw via a robust external power transmission. Crafted for superior performance, the initial stage employs a low-pressure screw set, smoothly transitioning to a high-pressure screw set in the second phase. Each meticulously designed screw is safeguarded by a sealing air film. Embark on a journey of unparalleled efficiency as the gas experiences a dynamic tri-phase process: suction, pressurization, and exhaust, harmoniously working together to deliver exceptional compression results.
First Stage Compression: Experience the pinnacle of efficiency in the initial stage of our two-stage screw air compressor. Here, the gas is skillfully compressed using a low-pressure screw set. The process begins as the gas is drawn into the compression chamber through the suction valve. Witness the transformation as the screw rotor's rapid rotation compresses the gas, preparing it seamlessly for the transition to the second stage.
Second Stage Compression: Enhance your compression experience with the second stage screw set, where the gas undergoes further compression within a strategically confined screw space. This stage achieves heightened temperatures and pressures, culminating in a robust release through the exhaust valve. High-pressure gases are triumphantly expelled, completing the seamless compression cycle.
Natural air begins its journey by being carefully drawn through the air filter into the first compression stage, where it blends with a precise amount of lubricating oil. This enriched mixture is compressed to an intermediate pressure, then directed into a cooling channel, where the gas engages with an abundant oil mist, significantly reducing its temperature. As the cooled, compressed gas advances to the second-stage rotor, it undergoes its final compression to achieve the ultimate exhaust pressure. This sophisticated process concludes with the fully compressed gas exiting the system through the exhaust valve, effectively completing the compression cycle.
1) High efficiency of PM motor:Unleash superior energy performance with our advanced permanent magnet motor, a technological marvel offering extensive torque and a broad range of magnetic capabilities. Enjoy a phenomenal 20-30% efficiency boost compared to conventional motors, sustaining peak performance even beyond standard operating frequencies. This ensures unmatched efficiency and robust performance across all conditions.
2) Two-stage compression unique air end:Step into the future with our revolutionary two-stage compression screw technology. Our distinctively crafted air end harmoniously blends the first and second-stage compression rotors within a single casing, driven by precision-engineered gears, each rotor spinning at its optimal pace. This unparalleled design dramatically elevates compression efficiency to unprecedented levels.
3) Integrated frequency converter: Experience the pinnacle of precision with China's premier frequency system, seamlessly integrated into our air compressor. Customize the frequency to perfectly match your specific gas requirements, delivering remarkable energy efficiency and operational superiority. This system ensures unparalleled speed regulation and precision in every operation.
4) Reduce internal leakage:Utilizing groundbreaking two-stage compression technology, we significantly lower the compression ratio for each stage, drastically minimizing internal leakage from high to low-pressure zones and substantially enhancing volumetric efficiency.
5) Variable frequency start and the soft startof the motor are flawlessly implemented, dramatically reducing impacts on power grid systems and protecting electrical components from potential damage.
6) Reduce energy consumption: Our state-of-the-art frequency conversion technology operates efficiently from 25% to 100%, significantly surpassing the conventional 50% to 100% range. Achieve over 30% energy savings compared to fixed-speed compressors and about 5% over standard variable frequency models, especially under varying demand conditions.
7) No transmission loss: With our groundbreaking integrated shaft direct connection, the permanent magnet motor and compressor form a unified, compact design. By eliminating couplings and transmission components, we achieve an extraordinary 100% transmission efficiency.
8) Air cooling method: Reap the benefits of our highly efficient air cooling system, providing exceptional cooling that substantially reduces compressed air temperatures. The near-isothermal compression minimizes pressure loss between stages, cutting compression ratios and enhancing total efficiency.
9)Smart Touch Controller: Our sophisticated built-in intelligence minimizes manual intervention. Featuring a high-definition color electronic display, it offers an intuitive graphical interface, maintenance alerts, fault alarms, and safety shutdown notifications to ensure seamless operations.
10)Special Type Intake Valve:Its automatic operation assures smooth engine fuel and oil flow, with ultra-low oil circuit loss significantly elevating efficiency. During emergencies, the normally open solenoid valve automatically closes to avert oil injection, ensuring safe operation.
Ultra-low oil circuit loss enhances overall efficiency.
The normally open solenoid valve automatically closes during emergency stops to prevent oil injection, ensuring system safety.
11)Excellent Air Filter:Our top-tier air filter provides unparalleled purification, maintaining a pristine air system with its advanced three-stage filtration. It delivers superior air quality, effectively eliminating steam and dust while adhering to the strictest emission standards.
12)High-Quality Soundproof Cotton:Our expertly engineered noise reduction housing, alongside premium soundproof cotton, significantly minimizes vibrations and reduces noise levels, fostering a tranquil and efficient work environment.
13) Motor maintenance-free:Our maintenance-free permanent magnet motor, devoid of internal bearings, eliminates the need for bearing maintenance or replacement, greatly reducing long-term maintenance costs while enhancing reliability.
14) Noise reduction:Step into a realm of unmatched serenity with our groundbreaking two-stage compression technology. This avant-garde system masterfully decreases the compression ratio, ensuring a remarkable reduction in operational noise, particularly during unloading phases. Immerse yourself in a quieter, more efficient workspace and boost your productivity with the Professional Industrial Screw Compressor from Sanzhi, pioneering the way in acoustic comfort and performance excellence. Revel in the harmony of sound and power, and elevate your industrial experience like never before.
15) Effortless Maintenance and Service:Our state-of-the-art two-stage compressor unit is ingeniously designed to retain the familiar structure and systems of a traditional single-stage compressor. By solely omitting the screw air end, we ensure that maintenance and service are straightforward and intuitive for everyone. Delight in seamless, stress-free upkeep and maintain peak performance consistently with Sanzhi's Professional Industrial Screw Compressor, meticulously engineered for ease and reliability in every aspect. Simplify your maintenance routines and trust in a product that promises enduring excellence.
| 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
Experience unmatched value with Sanzhi (Henan) Compressor Co., Ltd. Unlock exclusive factory-direct prices that empower you to dominate the competitive market landscape, ensuring you stay ahead with unbeatable offers.
2. Direct Transactions
Maximize cost-efficiency and enjoy peace of mind through our streamlined direct transaction model. Procure products directly from the factory, guaranteeing the utmost savings and unwavering dependability.
3. OEM & ODM Services
Harness our exceptional production and management capabilities. We offer customized OEM and ODM services, intricately designed to your specifications, ensuring your distinct needs are not only met but exceeded with precision.
4. Customized Solutions
Excel in non-standard and export orders with our flexible approach. We tailor solutions to specific voltage, power, and pressure requirements, ensuring they align perfectly with your bespoke expectations.
5. Small Order Acceptance
Begin your journey with a small trial order to personally witness our products' exceptional quality, ensuring complete satisfaction before you decide to elevate your order volumes.
6. Rapid Delivery
Trust in our swift and reliable delivery service. We ensure your premium products arrive quickly, safeguarding the seamless continuation of your operations without interruption.
7. Comprehensive Authorization
Supercharge your distribution capabilities with extensive authorization certifications. Confidently market and sell SANZHI brand products, supported by our robust certification framework.
Nestled in the heart of innovation, Sanzhi (Henan) Compressor Co., Ltd stands as a radiant beacon of excellence in the global manufacturing arena. We proudly specialize in the creation of cutting-edge screw air compressors and vacuum pumps. With a remarkable legacy of over ten years of peerless experience, our extensive product line offers a diverse array of advanced solutions. These include both standard and low-pressure screw air compressors, alongside state-of-the-art permanent magnet frequency conversion variants and sophisticated two-stage compression models. Additionally, our product range is complemented by compressors crafted specifically for laser cutting applications. We also offer versatile single-tank and double-tank mobile screw options, as well as both electric and diesel-driven mobile screw compressors. Our pioneering screw vacuum pumps further demonstrate our commitment to technological advancement.
Our cutting-edge manufacturing plant is a testament to modern efficiency, featuring state-of-the-art multi-air compressor assembly lines that ensure remarkable precision and productivity. With a team of over 50 highly skilled and dedicated professionals, we consistently refine our management systems, incorporating ERP to minimize lead times and guarantee the swift delivery of premium products.
Our meticulously crafted management systems are passionately devoted to maintaining a pinnacle of quality standards that sets us apart. With the esteemed ISO9001 certification, our commitment to excellence is unwavering. We adhere to rigorous quality control procedures that include thorough inspections at every stage, from material checks and production monitoring to meticulous pre-delivery evaluations, ensuring unparalleled reliability and excellence in every unit.
Our exceptional customer service journey begins with a pre-sales team offering invaluable expert insights, guiding you in selecting the perfect air equipment tailored to diverse facilities. We provide comprehensive customization options that encompass both appearance and configuration. Through our OEM services, we offer bespoke products designed to meet distinct dealer requirements. Our professional sales and service team stands ready to provide swift and effective post-sales support, ensuring that your every need is promptly and expertly addressed.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering dedication to delivering superior, reliable, and stable products is unmistakable. We are committed to fostering enduring partnerships with our clients, ensuring efficient delivery, high-quality machinery, and competitive pricing. Our mission is to provide you with the ideal compressed air solution that perfectly aligns with your needs.
Situated in the picturesque Xinzheng City, Henan Province, China, our factory benefits from a prime location just 30 kilometers from Xinzheng International Airport, a convenient hour's drive away. We cordially invite you to visit and witness our exceptional offerings firsthand, where innovation meets excellence!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer with a specialization in screw air compressors, boasting over a decade of unparalleled industry expertise.
Q2. How do you control quality?
A: 1. Our rigorous inspections of raw materials ensure they meet the highest quality standards, laying the foundation for excellence.
2. Our precise installation process is meticulously monitored to guarantee flawless perfection.
3. Each machine undergoes a rigorous testing protocol of at least 5 continuous hours before dispatch, ensuring it performs at peak levels.
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 tailor a perfect solution precisely for you!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What is the available voltage air compressor?
A: At Sanzhi, we're dedicated to offering unparalleled versatility by providing a dynamic range of voltages, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Beyond our standard offerings, we excel in delivering bespoke customization options that seamlessly align with your unique specifications, ensuring we meet your every need.
Q6. How long is the delivery time?
A: For models with standard voltage, anticipate a swift and seamless delivery within just 15 working days following order confirmation. If your requirements include non-standard specifications, we encourage you to contact our dedicated sales team for accurate timelines and personalized service, ensuring a tailored fit to your schedule.
Q7. What's the payment term?
A: Our flexible payment terms are designed for your ease, comprising an initial 30% T/T in advance, followed by 40% T/T prior to shipment, and concluding with a final 30% T/T upon presentation of the B/L copy. We offer the convenience of transactions in both USD and RMB, catering to your financial preferences.
Q8. How about your warranty?
A: Experience true peace of mind with our comprehensive warranty, covering one full year for the entire machine and an extended two-year term specifically for the screw air compressor. Please be aware, however, that consumable spare parts fall outside the scope of this warranty coverage.
Q9. What about the maintenance?
A: To maintain optimal performance of your equipment, we recommend the initial maintenance be conducted after 500 hours of operation. Following this, regular maintenance should be scheduled every 2000-3000 hours, tailored to the specific conditions of your working environment for maximum efficiency.
Q10. Can machines be run in high-temperature environment?
A: Without a doubt, our state-of-the-art machines are meticulously engineered to thrive even in high-temperature environments. They are capable of delivering outstanding performance across a robust temperature range from a brisk -20° to a warm 45° (-4ºF to 113ºF), ensuring reliable operation under diverse conditions.
Q11. Do you offer OEM service?
A: Absolutely, we are delighted to offer both OEM and ODM services, supported by our creative and professional design team. We warmly welcome your custom orders and are excited to transform your unique ideas and visions into reality with our expertise.
Q12. How long could your air compressor be used?
A: Designed with endurance and longevity in mind, our air compressors are engineered for an impressive service life, typically surpassing a remarkable 10 years of consistent and reliable performance, offering you enduring value and peace of mind.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we furnish a comprehensive selection of high-quality spare parts, crafted to ensure uninterrupted and efficient machine operation. This availability not only extends the lifespan of your equipment but also sustains its peak performance throughout its tenure.
Q14. How about your after-sales service?
A: We are proud to offer exemplary after-sales service, which includes detailed online support for both installation and commissioning processes. Should further assistance be necessary, we have the capability to deploy expert engineers to provide hands-on training and precise installation guidance, ensuring your needs are thoroughly met.
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