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 exceptional 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
Within this meticulously engineered realm of air compression, Sanzhi (Henan) Compressor Co., Ltd. unveils the magic behind unparalleled energy efficiency. Our innovative single-stage compression mirrors the energy demands typically seen in advanced multi-stage systems. However, real-world elements like coupling power losses, friction from bearings, and fluid-induced cooling effects can raise overall energy usage. By precisely optimizing each stage's compression ratio, we greatly reduce these inefficiencies. Consequently, the total energy consumption of our multi-stage compression is significantly lower than that of single-stage counterparts, ensuring a smoother and more economically intelligent operation.
Introducing the epitome of cutting-edge technology from Sanzhi (Henan) Compressor Co., Ltd., our revolutionary Efficient Twin-Stage Two-Stage Air Cooling Screw Air Compressor. This engineering marvel boasts a meticulously honed twin-stage rotary screw mechanism, featuring an active screw at each phase powered by a robust external transmission system. The initial phase is equipped with a low-pressure screw assembly, seamlessly succeeded by a high-pressure screw assembly in the subsequent phase. Each screw is enveloped in a protective sealing air film. Throughout operation, the gas experiences an advanced three-phase cycle of suction, pressurization, and exhaust, achieving extraordinary compression efficiency and superior performance.
First Stage Compression: Embark on the remarkable journey with our two-stage screw air compressor as it expertly compresses gas using the low-pressure screw assembly. Initially, the gas is drawn into the compression chamber through the suction valve, where the swift motion of the screw rotor compresses it. Following this initial compression, the gas effortlessly transitions to the second stage, setting the groundwork for enhanced compression.
Second Stage Compression: Progressing to the next stage, the gas is subjected to rigorous compression within a more condensed screw space, achieving heightened temperatures and pressures. This culminates as the exhaust valve opens, releasing the high-pressure gases from the system, thereby completing the compression cycle with exceptional accuracy and skill.
The air embarks on an intricate journey, entering through the air filter into the first compression stage, where it merges with a precisely calculated amount of lubricating oil. This amalgamation is compressed to an intermediate pressure. The gas then flows into a cooling channel, interacting with a substantial oil mist, which dramatically lowers the temperature. The cooled, compressed gas advances to the second-stage rotor for ultimate compression to the desired exhaust pressure. Upon reaching this final stage, the fully compressed gas exits the system through the exhaust valve, bringing the compression cycle to a close with remarkable accuracy and efficiency.
1) High efficiency of PM motor:Dive into a new realm of energy efficiency with our premier permanent magnet motor. This state-of-the-art motor offers a remarkable 20-30% increase in efficiency compared to traditional motors, setting a new benchmark. With its extensive constant torque range and innovative weak magnetic dynamics, this motor maintains its superior efficiency, even beyond its rated frequency. This ensures consistent, optimal performance and elevates your operational standards like never before.
2) Two-stage compression unique air end:Experience the future of compression with our innovative two-stage compression system, featuring a uniquely crafted air end. This advanced system artfully integrates dual compression rotors within a unified casing. The rotors, driven directly by gears, perform at perfect linear speeds, enhancing compression efficiency substantially while delivering unmatched reliability.
3) Integrated frequency converter: Harness the power of China's leading frequency system with our compressor, featuring an expansive speed regulation range and precise control. Effortlessly adjust the frequency to meet real-time gas demands, achieving extraordinary energy savings and elevating operational efficiency to new heights.
4) Reduce internal leakage:Our revolutionary two-stage compression technology maximizes the compression ratio at each stage, significantly reducing internal leakage from high to low-pressure zones. This breakthrough enhances volumetric efficiency and significantly boosts overall compressor performance, delivering superior results.
5) Variable frequency start and the soft startOur motor, featuring variable frequency and soft start capabilities, minimizes the strain on power grid systems. This crucial feature safeguards electrical components, extending their lifespan exponentially and ensuring enduring reliability.
6) Reduce energy consumption: Our cutting-edge frequency conversion system operates flawlessly from 25% to 100%, surpassing the standard 50% to 100% range. It offers over 30% energy savings versus fixed-speed compressors, along with an additional 5% efficiency enhancement over typical variable frequency systems, making it perfect for managing variable gas demands seamlessly.
7) No transmission loss: With a directly linked permanent magnet motor and compressor, our design eliminates transmission components, ensuring a pristine 100% transmission efficiency. This guarantees peak, flawless performance consistently, redefining operational excellence.
8) Air cooling method: Our superior air cooling system offers exceptional cooling power, dramatically reducing compressed air temperature. This method supports near-isothermal compression, mitigates pressure loss, optimizes the compression ratio, and enhances overall efficiency, setting a new standard in cooling technology.
9)Smart Touch Controller: Introducing our next-gen smart controller, embedded with intelligent features to reduce manual interventions. Its high-resolution color display offers an intuitive graphical interface, maintenance reminders, fault alerts, and safety shutdown notifications, ensuring continuous, seamless operation with ease and confidence.
10)Special Type Intake Valve:Automatic opening ensures smooth engine fuel injection and oil circulation, enhancing overall system efficiency. This sophisticated feature reduces oil circuit loss remarkably, resulting in a significant efficiency boost.
The normally open solenoid valve maintains a secure seal during emergency stops, preventing oil injection and guaranteeing maximum system safety, epitomizing reliability.
The normally open solenoid valve secures a tight seal during emergency stops, preventing oil injection and ensuring utmost system safety.
11)Excellent Air Filter:Our premium air filter ensures unparalleled purification with its robust three-stage filtration system, guaranteeing top-tier air quality. It effectively removes steam and dust, exceeding the highest emission standards for eco-friendly operations, safeguarding the environment and your workspace.
12)High-Quality Soundproof Cotton:Incorporating advanced noise reduction housing and luxurious soundproof cotton, our design substantially dampens operational vibrations and noise, creating a quieter and more efficient workplace, enhancing comfort and productivity.
13) Motor maintenance-free:Discover the pinnacle of compressor innovation with our revolutionary maintenance-free permanent magnet motor design, masterfully engineered to completely eliminate internal bearings. This groundbreaking advancement not only removes the burden of bearing maintenance and replacement but also significantly slashes long-term maintenance costs. As a result, our compressor systems promise enhanced reliability, consistently achieving peak performance over prolonged durations. Embrace our state-of-the-art solution for unmatched cost-effectiveness and exceptional dependability, ensuring you stay ahead in efficiency and sustainability.
14) Noise Reduction: Immerse yourself in the tranquility brought by Sanzhi (Henan) Compressor Co., Ltd.'s cutting-edge two-stage compression technology. This outstanding system is meticulously crafted to optimize the compression ratio, leading to a remarkable reduction in operational noise, particularly during unloading phases. Experience a quieter, more productive work setting that amplifies efficiency, courtesy of 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 to new heights.
15) Effortless Maintenance and Unmatched Service: Step into the future of hassle-free maintenance with our innovative two-stage compressor unit, precisely crafted by Sanzhi (Henan) Compressor Co., Ltd. This trailblazing design retains the familiar framework and systems of a single-stage compressor, with the unique advantage residing in the screw air end. This inventive structure guarantees maintenance and service that are as straightforward and user-friendly as ever. Revel in seamless maintenance paired with consistently superior performance, all thanks to the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Depend on Sanzhi for effortless maintenance and extraordinary results that redefine your expectations.
| 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 unparalleled value with Sanzhi (Henan) Compressor Co., Ltd. Partner with us to harness the power of factory-direct pricing brilliance, offering a formidable competitive advantage in your field. Enhance your market presence with strategically crafted pricing designed to maximize profitability and fortify your market position.
2. Direct Transactions
Revolutionize your purchasing journey with our cost-efficient and streamlined direct transaction model. Our robust logistics pipeline ensures swift delivery from factory to your doorstep, promising significant savings and unwavering supply chain reliability that meets your demands with unmatched precision.
3. OEM & ODM Services
Leverage our state-of-the-art production and management expertise to access top-tier OEM and ODM services. Each offering is meticulously tailored to fit your distinctive needs, guaranteeing that all custom requirements are met with exceptional precision and superior quality.
4. Customized Solutions
Master the art of custom solutions for non-standard and export orders. We adeptly manage diverse voltage, power, and pressure specifications, crafting bespoke responses to your specific needs. Share your unique requirements, and we'll deliver solutions that flawlessly align with your high expectations.
5. Small Order Acceptance
Begin your journey with a small trial order to experience our product excellence firsthand. Ensure your complete satisfaction before scaling up, granting you ultimate peace of mind and unwavering confidence in your choice.
6. Rapid Delivery
Rest assured with our swift and dependable delivery services. We prioritize the prompt arrival of our premium products, ensuring your operations remain smooth and highly efficient.
7. Comprehensive Authorization
Expand your distribution prowess with our extensive authorization certifications. Market and distribute SANZHI brand products with confidence, backed by an in-depth certification process that propels your success and accelerates your business growth.
Sanzhi (Henan) Compressor Co., Ltd stands as a preeminent leader in the dynamic realm of screw air compressors and vacuum pumps. With an impressive and illustrious track record spanning more than a decade, we are thrilled to present a state-of-the-art selection of products. Our extensive portfolio encompasses standard and low-pressure screw air compressors, alongside the groundbreaking permanent magnet frequency conversion screw air compressors and sophisticated two-stage compression screw air compressors. Catering to niche and specialized requirements, our laser cutting screw air compressors deliver unparalleled precision and reliability. We also offer flexible single-tank and double-tank mobile screw air compressors. Our electric and diesel mobile screw air compressors are engineered to deliver exceptional performance for demanding applications. Furthermore, our cutting-edge screw vacuum pumps are intricately designed to meet the most stringent industrial standards, ensuring excellence and durability.
Our state-of-the-art production facility is equipped with advanced multi-air compressor assembly lines, ensuring unmatched efficiency and precision in every unit produced. With a dedicated team of over 50 exceptionally skilled experts, we are committed to enhancing our management systems, including ERP, to significantly reduce lead times and ensure the rapid delivery of premium products. Our relentless pursuit of innovation propels us to the forefront of the industry, continuously setting new benchmarks for excellence and driving our success.
Our meticulously crafted management systems are engineered to uphold the utmost quality standards. Accredited with the prestigious ISO9001 quality management system certification, we maintain rigorous quality control procedures. Each machine undergoes exhaustive inspections throughout various stages, from material selection to production checks and pre-delivery evaluations, to ensure unmatched product reliability and excellence. Our unwavering commitment to quality provides you with absolute confidence in superior performance and dependable operation.
Discover our outstanding customer service, commencing with our pre-sales team offering expert guidance to select the ideal air equipment for a wide range of facilities. We provide extensive customization options, including design and configuration changes, delivering tailored 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, ensuring that your requirements are met promptly and accurately. Experience unparalleled customer care with Sanzhi, where our commitment to excellence is unwavering.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering products that embody superiority, reliability, and stability. Committed to fostering enduring partnerships with our clients, we ensure timely delivery, world-class machinery, and competitive pricing. Our mission is to offer the perfect compressed air solution tailored to your needs, delivering unparalleled value, performance, and satisfaction in every interaction.
Situated in the picturesque 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 invite you to visit our facility and experience our exceptional offerings firsthand! Come and explore the unique Sanzhi experience in person, where our dedication to excellence is evident in every detail.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a leading manufacturer specializing in screw air compressors, with over a decade of deep industry expertise. Our extensive experience distinctly sets us apart in the market, showcasing our exceptional capabilities and commitment to excellence.
Q2. How do you control quality?
A: 1. We conduct thorough and comprehensive inspections of our raw materials to ensure superior quality before production begins, safeguarding the excellence of our products.
2. Our installation process is meticulously monitored at every phase to ensure precision and accuracy, ensuring the highest standards of quality and performance.
3. Each machine undergoes a minimum of 5 continuous hours of rigorous testing prior to dispatch, guaranteeing peak performance and reliability for our customers.
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 uniquely for you! Leveraging our unparalleled expertise, we guarantee to meet your exact needs with precision, excellence, and a touch of innovation.
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 surpass the extensive demands of industrial applications with unmatched performance and efficiency.
1KW = 1.34 HP. This conversion underscores the remarkable capability of our compressors, delivering substantial power to ensure stable and reliable operation, even in the most challenging conditions.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. offers an extensive range of voltage options, expertly tailored to meet global standards. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our commitment is to deliver customized solutions for your specific electrical needs, ensuring superior compatibility and outstanding performance.
Q6. How long is the delivery time?
A: For standard voltage units, our streamlined processes ensure shipment within an impressive 15 working days post order confirmation. For non-standard voltage requirements, contact our dedicated sales team for a delivery schedule meticulously tailored to your specific needs.
Q7. What's the payment term?
A: Our payment terms prioritize 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 both USD and RMB, offering flexibility and ease for a smooth transaction.
Q8. How about your warranty?
A: Sanzhi offers a comprehensive warranty for peace of mind: one year for the entire machine and two years for the screw air compressor, excluding consumable spare parts. This commitment reflects our dedication to quality and durability.
Q9. What about the maintenance?
A: Initial maintenance is paramount and should be performed after 500 operating hours. Subsequent maintenance is recommended between 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 engineered for exceptional performance, even in extreme temperatures. They reliably maintain efficient operation across a wide range of -20° to 45° (-4ºF to 113ºF), ensuring durability and dependability in the most demanding conditions.
Q11. Do you offer OEM service?
A: Yes, we excel in providing both OEM and ODM services. Our expert design team is adept at turning your custom orders into reality, crafting solutions perfectly aligned with your specifications, enhancing brand identity and product differentiation.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously designed for exceptional longevity, typically offering an impressive lifespan that exceeds 10 years of reliable and efficient service, ensuring sustained productivity and value.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we offer a comprehensive selection of high-quality spare parts, designed to ensure your machines maintain seamless operation and peak performance, maximizing uptime and operational efficiency over the long term.
Q14. How about your after-sales service?
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