Prepare to be captivated by the formidable prowess of the Sanzhi 280KW Two-Stage Screw Air Compressor. This masterpiece, crafted by the illustrious Sanzhi (Henan) Compressor Co., Ltd., stands as a testament to excellence within China's eminent compressor manufacturing sector. Unlock a world of unparalleled value with our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, purpose-built to deliver exceptional performance at incredibly competitive factory rates. This remarkable piece of engineering is further enhanced by cutting-edge Centrifugal Fans, ensuring not only superior energy efficiency but also significant energy savings. Designed specifically for stationary applications, it emerges as a formidable powerhouse, meticulously engineered to thrive in the most demanding industrial environments, setting new standards in both performance and reliability.
Internal Structure Frontside: The meticulously engineered front side of this innovative compressor houses vital components, each strategically placed to optimize airflow and enhance the system's overall efficiency.
Internal Structure Backside: At the rear, the intricate layout of parts demonstrates a commitment to functionality, ensuring seamless operation and easy access for maintenance, thereby elevating the user experience.
Working Principle: Leveraging advanced engineering, the compressor operates with precision, utilizing a sophisticated two-stage approach to compress air with exceptional efficiency and reliability.
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. |
Immerse yourself in the pinnacle of German engineering with our avant-garde centrifugal fan, a true marvel of innovation and unmatched efficiency. This advanced system features a high-speed rotating impeller that expertly fine-tunes air velocity to deliver precise axial airflow into the impeller, vastly enhancing motor cooling efficiency-a feat impossible for ordinary air-cooled fans. Our revolutionary design guarantees rapid cooling, allowing your compressor to operate seamlessly and continuously, thereby extending its lifespan. It is an indispensable asset for any enterprise, offering unparalleled reliability and durability.
1) Unmatched Efficiency of PM Motor:Our state-of-the-art permanent magnet (PM) motor is meticulously crafted to provide an impressive constant torque range and an extensive weak magnetic range, outperforming standard motors with an extraordinary 20-30% higher efficiency. Even beyond the rated frequency, the PM motor maintains its remarkable efficiency, ensuring peak performance in all operational scenarios, thus maximizing productivity and operational excellence.
2) Maintenance-Free Motor:At the forefront of innovation, the permanent magnet motor is ingeniously designed without internal bearings, eliminating traditional expenses associated with motor bearing maintenance and replacement. This groundbreaking design choice results in a significant reduction in overall maintenance costs, thereby enhancing operational efficiency and reducing downtime.
3) Integrated Frequency Converter: Equipped with China's leading frequency system, our compressor offers expansive speed regulation with unmatched accuracy. The system intuitively adapts to real-time gas demands, achieving exceptional energy savings and maximizing operational efficiency, delivering a genuine competitive edge.
4) Impeccable Transmission Efficiency: Featuring a direct shaft connection structure, the compressor incorporates an integrated permanent magnet motor within a streamlined and compact design. This innovative configuration eliminates the need for couplings and other transmission components, ensuring flawless 100% transmission efficiency, setting a new benchmark in performance excellence.
5) Variable Frequency and Soft Start:The motor's advanced design significantly diminishes impact on power grid equipment, safeguarding electrical systems from potential damage. This enhancement prolongs the entire system's lifespan, ensuring reliable and durable performance across a broader spectrum of applications.
6) Remarkable Energy Savings: With a frequency conversion range extending from a remarkable 25% to 100%-superior to the conventional 50% to 100%-our system achieves over 30% energy savings compared to fixed-speed compressors. It also delivers approximately 5% greater energy savings than standard variable frequency compressors, offering substantial cost benefits for systems with varying gas consumption patterns.
7) Innovative Two-Stage Compression Air End:Our expertly engineered two-stage compression screw machine seamlessly integrates both first and second-stage compression rotors within a single casing, with each rotor individually gear-driven to ensure optimal linear speed, achieving peak compression efficiency and reliability that sets new industry standards.
8) Advanced Internal Spray Curtain Cooling Method: Our high-efficiency internal spray curtain cooling method provides exceptional 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 to new heights.
9) Minimized Internal Leakage:The innovative two-stage compression system dramatically reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends. This enhancement markedly boosts volumetric efficiency, ensuring superior performance and operational excellence.
10) Superior Noise Reduction:The reduced compression ratio in the two-stage system significantly diminishes noise levels, especially during unloading operations, ensuring a quieter, more serene working environment ideal for any setting, enhancing workplace comfort and productivity.
11) Effortless Maintenance and Service:Despite its groundbreaking two-stage compression design, our system's other components and structures remain similar to single-stage compressors. This design ensures maintenance is straightforward and service is user-friendly, guaranteeing ease of operation and minimal disruption.
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 an exceptional ex-factory pricing advantage that is truly unbeatable. This strategic benefit ensures our partners command a formidable market position, enabling them to outshine the competition with absolute confidence and establish a strong foothold in their industry sectors.
2. Effortless Direct Transactions
Our state-of-the-art manufacturing facility allows us to dispatch products directly to you, ensuring solutions that blend cost-effectiveness with optimal efficiency. Crafted with meticulous attention to detail, our products align perfectly with your unique requirements and precise specifications.
3. Comprehensive OEM & ODM Solutions
With our extensive production capabilities and an expert management team, we deliver outstanding OEM/ODM services tailored to your unique needs. These bespoke services are designed to support your visionary business goals and help you achieve exceptional market success.
4. Personalized Customization Service
We are committed to supporting non-standard export orders with customization in parameters like voltage, power, and pressure. Join us to explore bespoke solutions that meet your unique specifications and empower your business journey.
5. Support for Small Orders
We warmly welcome you to commence your journey with a small trial order, allowing you to witness firsthand the superior quality and consistent performance our products deliver, setting a benchmark for excellence.
6. Expedited Delivery
Benefit from our rapid delivery service of premium products, ensuring your timelines are seamlessly met. Keep your operations smooth and uninterrupted, thus enhancing overall efficiency and productivity.
7. Full Authorization
We bestow our trusted distributors with complete authorization certificates, empowering them to promote our distinguished SANZHI brand products with utmost confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. is a paragon of innovation and expertise in the air compression realm, known for its stellar reputation and over ten years of unparalleled experience. As frontrunners in the industry, we offer a rich and varied array of advanced screw air compressors and trailblazing screw vacuum pumps. Our diverse offerings include standard and low-pressure screw air compressors, sophisticated permanent magnet frequency conversion models, and durable two-stage compression units. Specially designed screw air compressors for laser cutting set new industry standards. We provide adaptable single-tank and double-tank mobile screw options, a spectrum of electric and diesel mobile screw air compressors, and groundbreaking screw vacuum pumps, all crafted with meticulous precision and steadfast reliability.
Our manufacturing excellence is bolstered by state-of-the-art assembly lines, crucial for achieving outstanding efficiency. With a dedicated team of over 50 skilled professionals, we perpetually refine our management practices. By integrating cutting-edge ERP systems, we drastically decrease lead times, ensuring our exceptional products are promptly delivered, fulfilling our customers' needs with precision.
Our commitment to supreme management is validated by our esteemed ISO9001 quality management system certification. We adhere to rigorous quality standards, executing thorough control procedures. Every machine is subjected to a comprehensive series of inspections, including precise material assessments, detailed production monitoring, and exhaustive pre-delivery evaluations, guaranteeing that only the finest machines reach our valued clientele.
Our dedication to superior customer service begins at the very first interaction with our clients. We provide expert pre-sales consultations to guide clients in choosing the perfect air equipment tailored to their unique requirements. Our unmatched customization capabilities enable us to modify both the appearance and configuration to suit individual tastes, alongside offering OEM services for exclusive dealer specifications. Our committed sales and service team ensures swift and efficient responses, facilitating a seamless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfast in our mission to deliver premium, reliable products while fostering enduring customer relationships. By merging quick delivery with exceptional product quality and competitive pricing, we set ourselves apart as your trusted partner for comprehensive compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our factory enhances convenience with complimentary transportation from Xinzheng International Airport, a mere 30 kilometers away, approximately an hour's drive. We warmly welcome you to visit our esteemed facility and experience our world-class offerings.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned and verified manufacturer with over a decade of industry expertise, specializing in screw air compressors.
Q2. How do you control quality?
A: 1. We conduct comprehensive inspections of all raw materials to guarantee exceptional quality from the very start.
2. Our installation processes are executed with meticulous precision to ensure ultimate excellence.
3. Each machine undergoes a stringent minimum of 5 continuous hours of testing before dispatch, ensuring 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 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: At Sanzhi air compressors, we proudly present a versatile and dynamic array of voltage options, meticulously crafted to meet diverse regional requirements. Our configurations, which include 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, ensure seamless integration and operation within your infrastructure. Demonstrating our unwavering commitment to tailored solutions, we provide exclusive customization services to align each product with your distinct operational needs. This approach offers unparalleled adaptability and efficiency, empowering your enterprise with precision, enhanced performance, and cutting-edge technology.
Q6. How long is the delivery time?
A: For standard voltage specifications, we have expertly refined our order processing systems to achieve completion within an impressive 15 working days after confirmation. For orders with specific requirements, our proactive sales team engages closely with you to develop a precise delivery timeline, ensuring a seamless and timely experience that harmonizes perfectly with your scheduling needs and expectations.
Q7. What's the payment term?
A: Our thoughtfully-designed payment terms ensure ease and convenience. The process begins with an initial 30% T/T payment, followed by 40% T/T before shipment, and concludes with the final 30% T/T upon receiving the B/L copy. Offering the flexibility of transactions in both USD and RMB, we simplify the process for our valued clients, 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, ensuring that your operations remain uninterrupted and efficient.
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, customized to suit your specific environment. This strategy guarantees durability and reliability, keeping your equipment in peak condition and ready to meet your operational demands effortlessly and efficiently.
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, thus offering you unwavering dependability.
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, while delivering a tailored solution that perfectly aligns with your brand identity.
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, giving you peace of mind for years to come.
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, allowing your operations to run smoothly at all times.
Q14. How about your after-sales service?
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