Prepare to be mesmerized by the exceptional power and efficiency of the Sanzhi 280KW Two-Stage Screw Air Compressor. Crafted by the prestigious Sanzhi (Henan) Compressor Co., Ltd., this marvel stands as a beacon of excellence in China's leading compressor industry. Unlock a realm of unmatched value with our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, meticulously crafted to deliver extraordinary performance while maintaining highly competitive factory pricing. This engineering wonder is further elevated by the integration of state-of-the-art Centrifugal Fans, ensuring not only superior energy efficiency but also remarkable energy savings. Tailored specifically for stationary applications, it emerges as a robust powerhouse, designed with precision to excel in the most challenging industrial settings, redefining standards of both performance and reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the forefront of air compression technology, the quest for exceptional efficiency strikes a magnificent balance between single-stage and multi-stage systems. While theoretically, the energy needs of single-stage should match multi-stage systems, real-world applications reveal that extra energy is required due to factors like power transmission losses, bearing friction, and cooling effects from liquid viscosity. Multi-stage compression, by minimizing the compression ratio at each level, delivers enhanced efficiency, demanding less power than single-stage systems. This groundbreaking approach not only boosts overall performance but significantly cuts down on superfluous energy use, setting an innovative standard in power optimization.
Behold the groundbreaking two-stage screw air compressor, a testament to modern engineering prowess. This extraordinary machine boasts a refined dual rotary screw mechanism, with each stage featuring an active screw propelling a passive screw through a precisely engineered external power transfer system. The first stage is outfitted with a low-pressure screw assembly, expertly calibrated for peak performance, while the second stage is fortified with a high-pressure screw assembly. Central to this process are sealing air films encasing each screw, guiding the compression journey through three critical phases: flawless air intake, dynamic pressurization enhancing efficiency to unparalleled heights, and the conclusive exhaust phase completing the cycle with unmatched accuracy.
First stage compression: The operation of the two-stage screw air compressor initiates with engineering excellence. A cutting-edge low-pressure screw assembly spearheads the process, channeling gas into the compression chamber via a meticulously engineered suction valve. As the rotor spins at a remarkable speed, the gas experiences initial compression, laying the groundwork for intensified compression in the next stage.
Second stage compression: As the process advances to the second stage, the gas navigates into a masterfully designed, more compact screw space, where pressures and temperatures are carefully elevated to extraordinary levels. The operation reaches a pivotal moment as the exhaust valve opens, permitting the high-pressure gases to depart the system, thus concluding the sophisticated compression cycle with unrivaled efficiency.
The meticulous journey of air compression commences with ambient air flowing seamlessly through the air filter, converging with a trace of lubricating oil within the compression chamber. This mixture undergoes an initial compression to an intermediate pressure, followed by substantial cooling through interaction with oil mist in the cooling channel. The cooled gas then progresses to the second-stage rotor, where it undergoes a secondary compression phase, achieving the desired final exhaust pressure. This thoughtfully orchestrated cycle concludes as the compressed gas is gracefully expelled through the exhaust valve, marking the culmination 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 zenith of German engineering prowess with our cutting-edge centrifugal fan-a marvel of innovation and peerless efficiency. This state-of-the-art system features a high-speed rotating impeller, masterfully adjusting air velocity to provide precise axial airflow into the impeller. This breakthrough significantly enhances motor cooling efficiency, achieving a milestone unattainable by typical air-cooled fans. Our groundbreaking design ensures rapid temperature reduction, facilitating seamless and uninterrupted compressor operation while extending 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 with 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 ingeniously 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, thereby 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, offering 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, safeguarding electrical systems against 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 offer our clients unbeatable ex-factory pricing, a strategic benefit that provides an enviable market advantage. This allows our partners to consistently outpace their competitors, cementing their leadership positions in their respective sectors.
2. Effortless Direct Transactions
Our products ship directly from our state-of-the-art manufacturing facility, enabling us to deliver solutions that are not only cost-effective but also incredibly efficient. These solutions are expertly designed to meet your specific needs and precise specifications with perfection.
3. Comprehensive OEM & ODM Solutions
Leveraging our expansive production capabilities and expert management, we provide outstanding OEM/ODM services. These services are brilliantly crafted to meet your exact requirements and align with your visionary business goals.
4. Personalized Customization Service
Committed to accommodating non-standard export orders, we offer customization options for parameters like voltage, power, and pressure. Connect with us to explore bespoke solutions tailored to your specific needs.
5. Support for Small Orders
Begin your experience with a small trial order to personally experience the unmatched quality and performance our products deliver consistently.
6. Expedited Delivery
Take advantage of rapid delivery of our superior products, ensuring your schedules are adhered to and operations remain seamless and uninterrupted, enhancing overall efficiency.
7. Full Authorization
We provide our esteemed distributors with comprehensive authorization certificates, empowering them to promote our prestigious SANZHI brand products with confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. is a shining star in the air compression sector, boasting over ten years of unparalleled industry experience. As pioneers in the field, we offer a rich spectrum of innovative products, including cutting-edge screw air compressors and avant-garde screw vacuum pumps. Our comprehensive selection features standard and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and resilient two-stage compression units. Specially designed for laser cutting, our screw air compressors set new industry standards. We provide adaptable single-tank and double-tank mobile screw options, a wide selection of electric and diesel mobile screw air compressors, and groundbreaking screw vacuum pumps, all meticulously engineered for utmost precision and reliability.
Our manufacturing excellence is powered by state-of-the-art assembly lines, crucial for delivering exceptional efficiency. With a team of over 50 highly skilled experts, we continuously refine our management practices. Utilizing advanced ERP systems, we drastically reduce lead times, ensuring our top-quality products are swiftly delivered to meet and exceed our customers' expectations.
Our unwavering commitment to superior management is highlighted by our esteemed ISO9001 quality management system certification. We uphold rigorous quality standards by implementing comprehensive control procedures. Every machine undergoes a rigorous sequence of inspections, including detailed material assessments, production supervision, and meticulous pre-delivery evaluations, ensuring only the finest machines are delivered to our esteemed customers.
Our excellence in 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 tailored to their specific requirements. Our unparalleled customization capabilities enable us to modify appearance and configuration to match individual preferences, along with offering OEM services for unique dealer specifications. Our devoted sales and service team ensures prompt and effective communication, guaranteeing a seamless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfastly dedicated to delivering top-quality, reliable products while fostering enduring customer relationships. By combining rapid delivery with outstanding product quality and competitive prices, we establish ourselves as your trusted partner for comprehensive compressed air solutions.
Strategically positioned 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 cordially invite you to visit our distinguished facility and experience our commitment to excellence firsthand.
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 confirmed industry experience.
Q2. How do you control quality?
A: 1. We perform comprehensive inspections of all raw materials to ensure top-tier quality from the very beginning.
2. Our installation processes are meticulously carried out to uphold the highest standards of excellence.
3. Every machine is put through a minimum of 5 continuous hours of rigorous testing before dispatch to ensure optimal 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 are proud to present an impressive selection of voltage options, meticulously engineered to meet diverse regional standards. Our configurations, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, ensure flawless integration and operational harmony within your existing infrastructure. We demonstrate our unwavering commitment to bespoke solutions through exclusive customization services, perfectly aligning each product to your specific operational demands. This dedication provides unmatched adaptability and efficiency, empowering your enterprise with unmatched precision and high performance.
Q6. How long is the delivery time?
A: For standard voltage specifications, our streamlined order processing systems enable us to complete orders within an impressive 15 working days post-confirmation. For orders with unique requirements, our proactive sales team collaborates closely with you to establish a precise delivery schedule, ensuring a seamless and punctual experience that aligns perfectly with your planned timelines and expectations.
Q7. What's the payment term?
A: Our payment terms are expertly crafted for your convenience and simplicity. We begin with a 30% T/T initial payment, followed by a 40% T/T prior to shipment. The final 30% T/T is required upon receipt of the B/L copy. We provide the flexibility of transactions in both USD and RMB, streamlining the process for our esteemed clients and making transactions smooth and effortless.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty on the complete machine, enhanced by an extended two-year warranty for the screw air compressor, with the exception of consumable parts. This extensive coverage ensures unparalleled protection and peace of mind, safeguarding your investment with confidence and assurance.
Q9. What about the maintenance?
A: To maintain peak performance and extend the lifespan of your equipment, we recommend the initial maintenance after 500 hours of operation. Subsequently, regular servicing every 2000-3000 hours is advised, customized to your unique environment. This proactive maintenance strategy ensures durability and reliability, keeping your equipment in optimal condition to meet your operational demands with ease and efficiency.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our high-performance machines are expertly engineered to thrive in high-temperature environments. They deliver flawless operation within a wide temperature range of -20°C to 45°C (-4°F to 113°F), guaranteeing dependable 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, backed by our creative and innovative design team. We warmly welcome custom orders and are dedicated to bringing your unique ideas to life, ensuring your vision is executed with precision, creativity, and unparalleled professionalism.
Q12. How long could your air compressor be used?
A: Our air compressors are carefully designed with a focus on remarkable durability and longevity, typically offering an extraordinary lifespan exceeding 10 years. This commitment ensures consistent and reliable performance, providing steadfast support to your operations with confidence and resilience over the years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are dedicated to providing unwavering support by offering essential spare parts for your machines. This commitment guarantees a seamless and uninterrupted operational experience, empowering you to maintain optimal performance and continuous productivity effortlessly.
Q14. How about your after-sales service?
A: We are passionately committed to delivering exceptional after-sales service. Our offerings include comprehensive online guides for installation and commissioning, along with access to our expert engineers available for training and installation support. Your satisfaction is our highest priority, ensuring a fulfilling and supportive experience.
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