Prepare to be enthralled by the sheer power and extraordinary capabilities of the 280KW Two-Stage Screw Air Compressor from Sanzhi. Crafted by the renowned Sanzhi (Henan) Compressor Co., Ltd., this engineering marvel is a shining beacon within China's prestigious compressor manufacturing landscape. Immerse yourself in a realm of unmatched value with our cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, meticulously designed to deliver superior performance at impressively competitive factory pricing. This exceptional device is further augmented by state-of-the-art Centrifugal Fans, which not only boost energy efficiency but also significantly enhance energy savings. Tailored for stationary applications, it stands as a commanding force, intricately engineered to excel in the most challenging industrial settings, redefining benchmarks for both performance and reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the avant-garde landscape of air compression, where innovation dances with efficiency, Sanzhi's approach represents a masterful fusion between single-stage and multi-stage systems. While theoretically, both systems should consume similar energy levels, practical realities like transmission power losses, bearing friction, and cooling due to liquid viscosity demand more energy in single-stage operations. Multi-stage compression, with its artful minimization of compression ratios at each stage, triumphs by using significantly less power, thus amplifying system performance and slashing energy waste. This cutting-edge strategy sets a new precedent in optimizing power, marking a revolutionary leap in air compression technology.
Introducing the groundbreaking 280KW Two-Stage Screw Air Compressor by Sanzhi, a paragon of modern engineering brilliance. This advanced machine is designed with a meticulous dual rotary screw system, where each stage employs an active screw paired with a passive screw, interconnected through a precisely engineered external power transfer mechanism. The initial stage boasts a low-pressure screw assembly, fine-tuned to perfection, while the subsequent stage features a high-pressure screw assembly. Pivotal to this innovative process are sealing air films surrounding each screw, guiding the compression through three essential phases: seamless air intake, dynamic pressurization that propels efficiency to new heights, and a flawless exhaust phase that completes the cycle with exceptional precision.
First stage compression: The operation of the pioneering two-stage screw air compressor springs to life with unmatched engineering precision. At its helm is an advanced low-pressure screw assembly, deftly channeling gas into the compression chamber via a precisely engineered suction valve. As the rotor spins with remarkable speed, the gas is subjected to initial compression, skillfully setting the stage for an even more intense compression phase as the process seamlessly transitions to the subsequent stage.
Second stage compression: Transitioning into the second stage, the gas enters a specially designed, more confined screw space. Here, the pressures and temperatures are carefully elevated to extraordinary levels. The operation approaches a critical point as the exhaust valve gracefully opens, releasing the high-pressure gases from the system. This consummate cycle concludes the sophisticated compression journey with an efficiency that is nothing short of extraordinary.
The sophisticated odyssey of air compression commences as ambient air gently flows through the air filter, harmoniously blending with a touch of lubricating oil within the compression chamber. This mixture is subjected to preliminary compression to reach intermediate pressure, followed by substantial cooling through interaction with oil mist in the cooling channel. The cooled gas proceeds to the second-stage rotor, where it undergoes a secondary compression phase, reaching the targeted final exhaust pressure. This meticulously orchestrated cycle culminates as the compressed gas is elegantly discharged through the exhaust valve, signifying the completion of an efficient and all-encompassing 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 zenith of German engineering prowess with our cutting-edge centrifugal fan-a marvel of innovation and peerless efficiency. This state-of-the-art system showcases a high-speed rotating impeller, expertly fine-tuning air velocity to deliver precise axial airflow into the impeller. This breakthrough significantly enhances motor cooling efficiency, a milestone unattainable by typical air-cooled fans. Our pioneering design ensures rapid temperature reduction, enabling seamless and uninterrupted compressor operation while prolonging your compressor's lifespan. An indispensable asset for any enterprise, it guarantees unparalleled reliability and durability.
1) Unmatched Efficiency of PM Motor:Our cutting-edge permanent magnet (PM) motor is meticulously engineered to provide a remarkable constant torque range and a vast weak magnetic range. It outperforms standard motors with an extraordinary 20-30% higher efficiency. Even beyond the rated frequency, the PM motor retains its exceptional efficiency, ensuring optimal performance across all operational scenarios, thereby maximizing productivity.
2) Maintenance-Free Motor:At the heart of innovation, the permanent magnet motor is brilliantly designed without internal bearings, eliminating traditional costs associated with motor bearing maintenance and replacement. This revolutionary design choice results in a substantial decrease in overall maintenance expenses, thus enhancing operational efficiency.
3) Integrated Frequency Converter: Featuring China's premier frequency system, our compressor offers expansive speed regulation with unrivaled precision. The system intuitively adapts to real-time gas demands, achieving remarkable energy savings and maximizing operational efficiency, providing a genuine competitive advantage.
4) Impeccable Transmission Efficiency: With a direct shaft connection structure, the compressor houses an integrated permanent magnet motor, presenting a streamlined and compact design. This innovative configuration eliminates the need for couplings and other transmission components, ensuring impeccable 100% transmission efficiency, setting a new benchmark in performance.
5) Variable Frequency and Soft Start:The motor's sophisticated design dramatically reduces impact on power grid equipment, protecting electrical systems from potential damage. This enhancement prolongs the entire system's lifespan, ensuring reliable and durable performance.
6) Remarkable Energy Savings: With a frequency conversion range from an impressive 25% to 100% (compared to the conventional 50% to 100%), our system achieves over 30% energy savings compared to fixed-speed compressors. It also delivers approximately 5% more energy savings than standard variable frequency compressors, offering significant cost benefits for systems with varying gas consumption.
7) Innovative Two-Stage Compression Air End:Our expertly designed two-stage compression screw machine seamlessly integrates both first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven to ensure optimal linear speed, achieving peak compression efficiency and reliability.
8) Advanced Internal Spray Curtain Cooling Method: Our high-efficiency internal spray curtain cooling method provides superior cooling effects, significantly lowering compressed air temperatures. This results in nearly isothermal compression, reduced pressure loss between stages, a lower compression ratio, and enhanced overall compression efficiency, optimizing operational performance.
9) Minimized Internal Leakage:The innovative two-stage compression system significantly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends. This enhancement boosts volumetric efficiency, ensuring superior performance.
10) Superior Noise Reduction:The reduced compression ratio in the two-stage system notably decreases noise levels, particularly during unloading operations, ensuring a quieter and more serene working environment, ideal for any setting.
11) Effortless Maintenance and Service:Despite its revolutionary two-stage compression design, our system's other components and structures remain akin to single-stage compressors. This design makes maintenance straightforward and service user-friendly, ensuring 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
We empower our clients with ex-factory pricing that is nothing short of spectacular, granting them a substantial market advantage. This strategic pricing superiority enables our partners to consistently eclipse competitors, firmly cementing their dominance in their respective market domains.
2. Effortless Direct Transactions
Our products are dispatched directly from our state-of-the-art manufacturing facility, allowing us to offer solutions that are not only profoundly cost-effective but also remarkably efficient. These solutions are meticulously tailored to perfectly align with your distinctive needs and precise specifications.
3. Comprehensive OEM & ODM Solutions
Leveraging our extensive production capabilities and expert management, we provide exceptional OEM/ODM services. These services are ingeniously designed to cater to your specific requirements and align with your visionary business goals.
4. Personalized Customization Service
With a steadfast commitment to fulfilling non-standard export orders, we offer customization options in parameters such as voltage, power, and pressure. Collaborate with us to discover bespoke solutions crafted to meet your unique specifications.
5. Support for Small Orders
We invite you to commence your journey with a small trial order, allowing you to firsthand experience the unparalleled quality and performance our products consistently deliver.
6. Expedited Delivery
Take advantage of the rapid delivery of our high-quality products, ensuring that your timelines are met and your operations run seamlessly and uninterrupted, maximizing productivity.
7. Full Authorization
We provide our esteemed distributors with complete authorization certificates, empowering them to promote our prestigious SANZHI brand products with confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of excellence in the air compression industry, boasting more than a decade of unmatched expertise. As leaders in the field, we offer a portfolio brimming with innovation and diversity, showcasing state-of-the-art screw air compressors and groundbreaking screw vacuum pumps. Our extensive selection includes both standard and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and robust two-stage compression units. Our screw air compressors are meticulously engineered for laser cutting, establishing new industry standards. We provide versatile single-tank and double-tank mobile screw options, alongside a wide range of electric and diesel mobile screw air compressors. Our revolutionary screw vacuum pumps are designed with precision and unwavering reliability.
Our manufacturing prowess is fortified by cutting-edge assembly lines, crucial for ensuring exceptional efficiency. With a dedicated team of over 50 highly skilled professionals, we continuously enhance our management systems. By leveraging advanced ERP solutions, we significantly reduce lead times, ensuring our superior products are quickly delivered to meet our customers' needs.
Our commitment to exemplary management is demonstrated by our prestigious ISO9001 quality management system certification. We adhere to stringent quality standards, implementing comprehensive control protocols. Each machine undergoes a rigorous series of inspections, including detailed material evaluations, production oversight, and thorough pre-delivery assessments, ensuring only the finest machines reach our valued customers.
Excellence in customer service is evident from the very beginning of our interaction with clients. We offer expert pre-sales consultations to assist clients in selecting the ideal air equipment tailored to their specific needs. Our unparalleled customization capabilities allow us to modify appearance and configuration according to individual preferences, along with OEM services for distinctive dealer specifications. Our dedicated sales and service team guarantees prompt and effective responses, ensuring a seamless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd., we are unwaveringly committed to delivering top-tier, dependable products while fostering lasting customer relationships. By combining rapid delivery with exceptional product quality and competitive pricing, we distinguish ourselves as your trusted partner for comprehensive compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our factory enhances your convenience with complimentary transportation from Xinzheng International Airport, a mere 30 kilometers away, approximately an hour's drive. We warmly invite you to visit our distinguished facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with over a decade of verified industry expertise.
Q2. How do you control quality?
A: 1. We conduct thorough inspections of all raw materials to ensure superior quality from the outset.
2. Our installation procedures are meticulously executed to maintain the highest standards of excellence.
3. Each machine undergoes a rigorous minimum of 5 continuous hours of testing before dispatch to ensure 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 engineer a custom solution precisely tailored to meet your 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 take immense pride in presenting a versatile and dynamic array of voltage options, meticulously crafted to meet diverse regional requirements. Our configurations, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, ensure seamless integration and operation within your infrastructure. We demonstrate our commitment to tailored solutions through exclusive customization services, aligning each product with your distinct operational needs. This offers unparalleled adaptability and efficiency, empowering your enterprise with precision and performance.
Q6. How long is the delivery time?
A: For standard voltage specifications, we have refined our order processing systems to achieve completion within a remarkable 15 working days after confirmation. For orders with specific requirements, our proactive sales team collaborates closely with you to develop a precise delivery timeline. This ensures a seamless and timely experience, perfectly aligning with your scheduling needs and expectations.
Q7. What's the payment term?
A: Our payment terms are thoughtfully designed for ease and convenience. We initiate the process with an initial 30% T/T payment, followed by 40% T/T before shipment. The final 30% T/T is required upon receiving the B/L copy. We offer the flexibility of transactions in both USD and RMB, simplifying the process for our valued clients and making transactions straightforward and hassle-free.
Q8. How about your warranty?
A: We proudly extend 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 extensive coverage offers unmatched protection and assurance, safeguarding your investment with confidence and peace of mind.
Q9. What about the maintenance?
A: To ensure 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, tailored to your specific environment. This strategy guarantees 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 excel 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 thrilled 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 ensures 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 guarantees 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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