Experience the unmatched power and efficiency of the Sanzhi 280KW Two-Stage Screw Air Compressor. Produced by the renowned Sanzhi (Henan) Compressor Co., Ltd., this engineering marvel is a shining example of excellence within China's prestigious compressor manufacturing industry. Our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor opens the door to exceptional performance at incredibly competitive factory-direct prices. Equipped with state-of-the-art Centrifugal Fans, this compressor not only achieves top-tier energy efficiency but also promotes substantial energy savings. Specifically tailored for stationary applications, it stands as a powerhouse of unmatched capability, precisely crafted to excel in the most challenging industrial settings, redefining benchmarks in both performance and reliability.
Internal Structure Frontside: The frontside of the Sanzhi Compressor showcases a meticulously organized layout. Designed with precision, this side houses the essential components that initiate the air compression process, setting the stage for a seamless journey from intake to pressurization.
Internal Structure Backside: The backside of the compressor is a marvel of intricate engineering, hosting the advanced mechanisms that complete the compression cycle. This section ensures that every phase of air transformation is executed with exceptional accuracy and efficiency.
Working Principle: At the heart of the Sanzhi 280KW Screw Air Compressor is a brilliant working principle that harmonizes cutting-edge technology with advanced engineering. This principle governs the precise orchestration of air intake, compression, and exhaust, ensuring optimal performance at every stage.
In the cutting-edge realm of air compression, achieving supreme efficiency is a captivating balance between single-stage and multi-stage compression systems. Theoretically, energy requirements for single-stage operations should mirror those of multi-stage systems. However, in practice, additional energy is necessary due to factors such as transmission power losses, friction from bearings, and cooling effects induced by liquid viscosity. By minimizing the compression ratio at each stage, multi-stage compression demonstrates superior efficiency, requiring less power than single-stage counterparts. This innovation elevates overall system performance and drastically reduces unnecessary energy consumption, setting a groundbreaking benchmark in power optimization.
Introducing the revolutionary two-stage screw air compressor, a marvel of modern engineering excellence. This machine features a sophisticated dual rotary screw mechanism, with each stage showcasing an active screw driving a passive screw through a meticulously crafted external power transfer system. The first stage is equipped with a low-pressure screw assembly, expertly tuned for optimal performance, while the second stage is engineered with a high-pressure screw assembly. Key to this process are sealing air films enveloping each screw, guiding the compression journey through three vital phases: seamless air intake, dynamic pressurization elevating efficiency to unprecedented heights, and the final exhaust phase completing the cycle with unmatched precision.
First stage compression: The operation of the two-stage screw air compressor begins with engineering precision. An advanced low-pressure screw assembly leads the charge, directing gas into the compression chamber through a precisely crafted suction valve. As the rotor spins with impressive velocity, the gas undergoes initial compression, setting the stage for intensified compression in the subsequent phase.
Second stage compression: As the process transitions to the second stage, the gas enters a uniquely crafted, more confined screw space, where pressures and temperatures are meticulously elevated to exceptional levels. The operation reaches a critical juncture as the exhaust valve unveils, allowing the high-pressure gases to exit the system, thus completing the sophisticated compression cycle with unparalleled efficiency.
The refined journey of air compression begins with ambient air gracefully passing through the air filter, merging with a touch of lubricating oil within the compression chamber. This blend undergoes initial compression to intermediate pressure, followed by significant cooling through interaction with oil mist in the cooling channel. The cooled gas then advances to the second-stage rotor, where it experiences a secondary compression phase, achieving the desired final exhaust pressure. This meticulously orchestrated cycle culminates as the compressed gas is elegantly released through the exhaust valve, marking the completion of a comprehensive and efficient air compression process.
| Sanzhi (Henan) Compressor Co,. Ltd. |
| Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor |
| 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. |
Experience the pinnacle of German engineering with our revolutionary centrifugal fan - a masterpiece of innovation and unmatched efficiency. Equipped with a high-speed rotating impeller, this advanced system expertly regulates air velocity to ensure precise axial airflow into the impeller. This innovation markedly boosts motor cooling efficiency, setting a new standard far beyond ordinary air-cooled fans. Our visionary design facilitates rapid temperature reduction, enabling seamless and uninterrupted compressor operation while significantly extending the lifespan of your compressor. This indispensable asset provides unparalleled reliability and durability for any enterprise.
1) Unmatched Efficiency of PM Motor:Our state-of-the-art permanent magnet (PM) motor is masterfully crafted to deliver a phenomenal constant torque range and a substantial weak magnetic range. It surpasses conventional motors, boasting an extraordinary 20-30% higher efficiency. Even at frequencies beyond its rating, the PM motor retains its superior efficiency, guaranteeing optimal performance in all operational scenarios, thereby maximizing productivity.
2) Maintenance-Free Motor:At the forefront of innovation, our permanent magnet motor is ingeniously designed without internal bearings, eradicating the traditional costs associated with motor bearing maintenance and replacement. This groundbreaking design choice significantly reduces overall maintenance expenses, thereby enhancing operational efficiency.
3) Integrated Frequency Converter: Boasting China's leading frequency system, our compressor offers expansive speed regulation with unparalleled precision. The system intuitively adjusts to real-time gas demands, achieving remarkable energy savings and maximizing operational efficiency, providing a true competitive edge.
4) Impeccable Transmission Efficiency: Featuring a direct shaft connection structure, this compressor incorporates an integrated permanent magnet motor, presenting a sleek and compact design. This cutting-edge configuration does away with couplings and other transmission components, ensuring flawless 100% transmission efficiency, setting a new benchmark in performance.
5) Variable Frequency and Soft Start:The motor's advanced design drastically reduces impact on power grid equipment, safeguarding electrical systems from potential harm. This enhancement significantly extends the overall system's lifespan, ensuring reliable and durable performance.
6) Remarkable Energy Savings: With an impressive frequency conversion range from 25% to 100% (outperforming the conventional 50% to 100%), our system achieves over 30% energy savings compared to fixed-speed compressors and approximately 5% more than standard variable frequency compressors, offering substantial cost benefits for systems with variable gas consumption.
7) Innovative Two-Stage Compression Air End:Our expertly crafted two-stage compression screw machine seamlessly integrates both first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven, ensuring optimal linear speed and achieving peak compression efficiency and reliability.
8) Advanced Internal Spray Curtain Cooling Method: Our high-efficiency internal spray curtain cooling method offers superior cooling effects, significantly reducing compressed air temperatures. This leads to nearly isothermal compression, decreased pressure loss between stages, a lower compression ratio, and enhanced overall compression efficiency, optimizing operational performance.
9) Minimized Internal Leakage:The sophisticated two-stage compression system markedly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends. This enhancement elevates volumetric efficiency, ensuring superior performance.
10) Superior Noise Reduction:The reduced compression ratio in the two-stage system significantly decreases noise levels, especially during unloading operations, creating a quieter and more serene working environment ideal for any setting.
11) Effortless Maintenance and Service:Despite its groundbreaking two-stage compression design, the system's other components and structures remain akin to single-stage compressors. This design ensures straightforward maintenance and user-friendly service, facilitating ease of operations.
12) Removable Door Panels for Optimal Access:Engineered with superior noise-dampening metal plates and meticulously lined with top-tier high-density sound-absorbing materials, this sophisticated unit is designed to comply with stringent international noise standards. The innovative door panel opens with ease and can be entirely removed, offering an impressive 270-degree extensive access. This thoughtful design dramatically simplifies the tasks of maintenance personnel, enhancing their ability to perform routine checks and repairs with unparalleled efficiency while ensuring uninterrupted and seamless operational flow.
1. Unrivaled Pricing Advantage
Experience an unmatched pricing advantage with our competitive ex-factory rates, empowering our clients to achieve an enviable edge in the marketplace. This strategic advantage positions our partners to consistently outperform their competitors, solidifying their dominance across various market sectors.
2. Effortless Direct Transactions
Our commitment to efficiency is reflected in the direct dispatch of products from our state-of-the-art manufacturing facility. This approach ensures we provide solutions that are not only cost-effective but also finely tuned to meet your distinct needs and rigorous specifications.
3. Comprehensive OEM & ODM Solutions
Leveraging our expansive production capabilities and expert management, we offer extraordinary OEM/ODM services. These services are expertly customized to align with your precise requirements and support your visionary business goals.
4. Personalized Customization Service
We are dedicated to meeting non-standard export orders through a diverse range of customization options, including voltage, power, and pressure. Partner with us to explore tailored solutions that meet your exact specifications.
5. Support for Small Orders
Begin your journey with us through a small trial order, which allows you to directly experience the exceptional quality and consistent performance that our products deliver.
6. Expedited Delivery
Take advantage of our prompt delivery services, ensuring that our premium products arrive swiftly, keeping your projects on track and operations smooth, thereby enhancing overall efficiency.
7. Full Authorization
We empower our valued distributors with full authorization certificates, giving them the ability to represent and promote our esteemed SANZHI brand products with assurance and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. leads the air compression industry with over a decade of unparalleled expertise. Proudly at the forefront of innovation, our extensive portfolio showcases cutting-edge screw air compressors and groundbreaking screw vacuum pumps. Our diverse offerings include standard and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and robust two-stage compression units, all engineered for precision and dependability. Our screw air compressors, specifically crafted for laser cutting, set new industry standards. We provide versatile options, including single-tank and double-tank mobile screw compressors, a variety of electric and diesel mobile units, and innovative screw vacuum pumps, all designed for reliability and meticulous craftsmanship.
Our manufacturing strength is bolstered by state-of-the-art assembly lines, ensuring exceptional operational efficiency. With a dedicated team of over 50 skilled professionals, we consistently refine our management systems. Utilizing advanced ERP solutions, we significantly expedite lead times, guaranteeing that our top-of-the-line products are delivered swiftly to meet our customers' demands with precision.
Our commitment to excellent management is demonstrated by our prestigious ISO9001 quality management system certification. We adhere to strict quality standards with comprehensive control protocols. Every machine undergoes a detailed series of inspections, including precise material evaluations, production monitoring, and thorough pre-delivery assessments, ensuring only premier machines reach our esteemed customers.
Outstanding customer service is evident from our initial interaction with clients. We provide expert pre-sales consultations to aid clients in selecting the perfect air equipment for their unique needs. Our unrivaled customization capabilities allow for tailored appearance and configuration adjustments, along with OEM services for unique dealer specifications. Our committed sales and service team ensures prompt and efficient responses, facilitating a seamless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfast in our commitment to offer top-quality, reliable products while building lasting customer relationships. By merging prompt delivery with exceptional product quality and competitive pricing, we stand out as your trusted partner for all-encompassing compressed air solutions.
Strategically nestled in Xinzheng City, Henan Province, China, our factory offers enhanced convenience with free transportation from Xinzheng International Airport, just 30 kilometers away, approximately an hour's drive. We warmly welcome you to tour our distinguished facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an experienced manufacturer with a specialization in screw air compressors, offering over a decade of verified industry expertise.
Q2. How do you control quality?
A: 1. We conduct comprehensive inspections of all raw materials to ensure superior quality from the very start.
2. Our installation procedures are executed with meticulous precision to maintain utmost excellence.
3. Each machine is subjected to an intense minimum of 5 continuous hours of testing prior to dispatch, ensuring peak performance.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (expressed in CFM or m³/Min)
2. Desired working pressure (expressed in PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (expressed in V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will expertly engineer a custom solution precisely tailored to meet your unique needs!
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: Sanzhi air compressors proudly present a diverse and dynamic suite of voltage options, meticulously engineered to meet a broad spectrum of regional demands. Our configurations, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, ensure seamless integration and optimal operation within your infrastructure. We demonstrate our unwavering commitment to personalized solutions through our exclusive customization services, aligning each product perfectly with your unique operational needs. This ensures unparalleled adaptability and efficiency, empowering your enterprise with the precision and performance it deserves.
Q6. How long is the delivery time?
A: For standard voltage specifications, our order processing systems are expertly streamlined to achieve completion within an impressive 15 working days post confirmation. For orders with specialized requirements, our proactive sales team engages closely with you to craft a precise delivery timeline. This ensures a smooth and timely experience, perfectly synchronized with your scheduling needs and expectations.
Q7. What's the payment term?
A: Our payment terms are thoughtfully structured for utmost convenience. The process begins with an initial 30% T/T payment, followed by 40% T/T prior to shipment. The final 30% T/T is due upon receipt of the B/L copy. We offer the flexibility of transactions in both USD and RMB, simplifying the process for our esteemed clients and ensuring transactions are straightforward and hassle-free.
Q8. How about your warranty?
A: We are proud to offer a robust one-year warranty on the entire machine, complemented by an extended two-year warranty for the screw air compressor, excluding consumable parts. This comprehensive coverage provides unmatched protection and assurance, safeguarding your investment with confidence and peace of mind.
Q9. What about the maintenance?
A: To maintain optimal performance and longevity of your equipment, we recommend the first maintenance after 500 hours of use. Thereafter, regular servicing every 2000-3000 hours is advised, customized to your specific environmental conditions. This strategy ensures durability and reliability, keeping your equipment in peak condition and ready to meet your operational demands effortlessly.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are meticulously engineered to perform excellently even in high-temperature environments. They operate flawlessly within a broad temperature range of -20°C to 45°C (-4°F to 113°F), ensuring reliable performance even under the most challenging and extreme conditions.
Q11. Do you offer OEM service?
A: Indeed, we are delighted to offer OEM and ODM services, supported by our talented and innovative design team. We welcome custom orders and are fully committed to bringing your unique concepts to life, ensuring your vision is realized with precision, creativity, and professionalism.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously crafted with a focus on exceptional durability and longevity, typically providing an extraordinary lifespan exceeding 10 years. This guarantees reliable and enduring performance, consistently supporting your operations with assurance and resilience over the years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are steadfast in our commitment to offering unwavering support by providing essential spare parts for your machines. This ensures a seamless and uninterrupted operational experience, enabling you to maintain optimal performance and continuous productivity with ease.
Q14. How about your after-sales service?
A: We are passionately dedicated to delivering outstanding after-sales service. Our offerings include comprehensive online guides for installation and commissioning, along with access to our expert engineers who are available for training and installation assistance. Your satisfaction is our utmost priority, ensuring a rewarding and supportive experience.
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