Prepare to be enchanted by the extraordinary capabilities of the Sanzhi 280KW Two-Stage Screw Air Compressor. This marvel of engineering, meticulously crafted by the prestigious Sanzhi (Henan) Compressor Co., Ltd., stands as a beacon of excellence in China's renowned compressor manufacturing industry. Immerse yourself in a realm of unmatched value with our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, ingeniously designed to offer outstanding performance at exceptionally competitive factory prices. This exceptional machine is further enhanced by state-of-the-art Centrifugal Fans, ensuring not only superior energy efficiency but also remarkable energy savings. Specifically tailored for stationary applications, it emerges as an undeniable powerhouse, expertly engineered to excel in the most challenging industrial settings, and redefining benchmarks in both performance and reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
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 zenith of German engineering prowess with our cutting-edge centrifugal fan - a marvel of innovation and peerless efficiency. This state-of-the-art system boasts a high-speed rotating impeller, meticulously fine-tuning air velocity to deliver precise axial airflow into the impeller. This breakthrough significantly enhances motor cooling efficiency, reaching milestones beyond the capabilities of typical air-cooled fans. Our revolutionary design ensures rapid temperature reduction, enabling seamless and uninterrupted compressor operation while extending your compressor's lifespan. An indispensable tool for any enterprise, it guarantees unparalleled reliability and durability.
1) Unmatched Efficiency of PM Motor:Our cutting-edge permanent magnet (PM) motor is meticulously crafted to provide a remarkable constant torque range and an expansive weak magnetic range. It surpasses 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, elevating productivity to new heights.
2) Maintenance-Free Motor:At the heart of innovation, the permanent magnet motor is brilliantly designed without internal bearings, eradicating traditional costs associated with motor bearing maintenance and replacement. This groundbreaking design choice results in a significant 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 unmatched precision. The system intuitively adapts to real-time gas demands, achieving remarkable energy savings and maximizing operational efficiency, providing a genuine competitive edge in the market.
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 standard in performance and reliability.
5) Variable Frequency and Soft Start:The motor's sophisticated design dramatically reduces impact on power grid equipment, safeguarding electrical systems from potential damage. This enhancement extends the entire system's lifespan, ensuring reliable and enduring 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 provides approximately 5% more energy savings than standard variable frequency compressors, offering significant cost benefits for systems with fluctuating gas consumption demands.
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 unmatched 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 to the fullest.
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 and reliability.
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 various settings.
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 ensures maintenance is straightforward and service is user-friendly, promising ease of operation and reliability.
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 simply irresistible, giving them an enviable market edge. This strategic pricing advantage enables our partners to consistently surpass competitors, firmly establishing their leadership in their respective market sectors.
2. Effortless Direct Transactions
From the heart of our advanced manufacturing facility, our products flow directly to you, offering not only unmatched cost-effectiveness but also outstanding efficiency. These solutions are masterfully engineered to fit your exclusive requirements and distinct specifications with utmost precision.
3. Comprehensive OEM & ODM Solutions
Leveraging our expansive production prowess and expert management, we bring forth superior OEM/ODM services. These services are astutely designed to cater to your specific demands and resonate with your ambitious business ambitions.
4. Personalized Customization Service
With a steadfast commitment to fulfilling non-standard export orders, we offer customization options in parameters like voltage, power, and pressure. Collaborate with us to unveil bespoke solutions crafted meticulously to satisfy your distinct needs.
5. Support for Small Orders
Embark on your journey with us by starting with a small trial order, experiencing firsthand the unparalleled quality and performance our products consistently deliver, ensuring your confidence in our offerings.
6. Expedited Delivery
Take advantage of our swift delivery service, ensuring our top-tier products reach you promptly, keeping your schedules intact and your operations smooth and uninterrupted, thus maximizing productivity.
7. Full Authorization
We equip our valued distributors with comprehensive authorization certificates, empowering them to advance our prestigious SANZHI brand products with utmost confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. is a shining beacon of excellence in the air compression industry, boasting over a decade of unparalleled expertise. As trailblazers in the field, we present an impressive portfolio that showcases innovation and diversity, featuring cutting-edge screw air compressors and groundbreaking screw vacuum pumps. Our comprehensive range includes standard and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and robust two-stage compression units. Our screw air compressors, meticulously designed for laser cutting, set new industry standards. We offer flexible single-tank and double-tank mobile screw options, a variety of electric and diesel mobile screw air compressors, and innovative screw vacuum pumps, all engineered with precision and unwavering reliability.
Our manufacturing prowess is enhanced by advanced assembly lines, critical for ensuring exceptional efficiency. With a team of over 50 highly skilled professionals, we continually refine our management systems. Utilizing sophisticated ERP solutions, we significantly reduce lead times, ensuring our superior products are swiftly delivered to meet our customers' needs.
Our commitment to exemplary management is evidenced by our prestigious ISO9001 quality management system certification. We adhere to rigorous quality standards, implementing comprehensive control protocols. Each machine undergoes a stringent series of inspections, including meticulous material evaluations, production oversight, and detailed pre-delivery assessments, ensuring only the finest machines reach our valued customers.
Excellence in customer service is apparent from the outset of our engagement with clients. We offer expert pre-sales consultations to assist clients in selecting the perfect air equipment tailored to their specific requirements. Our unmatched customization capabilities enable us to adjust 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 steadfastly committed to delivering premium, dependable products while fostering enduring 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 located 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 esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, boasting 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 utmost excellence.
3. Each machine is subjected to 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 proudly present an exceptionally versatile and dynamic range of voltage options, purposefully crafted to cater to diverse regional requirements. Our configurations, spanning 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, ensure effortless integration and flawless operation within your infrastructure. We underscore our dedication to customized solutions by offering exclusive customization services, meticulously aligning each product with your unique operational needs. This grants unparalleled adaptability and efficiency, empowering your enterprise with unmatched precision and outstanding performance.
Q6. How long is the delivery time?
A: For standard voltage specifications, we've perfected our order processing systems to achieve completion within an impressive 15 working days post-confirmation. For orders with specific requirements, our proactive sales team collaborates closely with you to craft a precise delivery timeline, ensuring a seamless and timely experience that perfectly aligns with your scheduling expectations.
Q7. What's the payment term?
A: Our payment terms are designed with thoughtful consideration for ease and convenience. The process begins 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 esteemed clients, making transactions straightforward and completely hassle-free.
Q8. How about your warranty?
A: We proudly offer a comprehensive 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 provides unparalleled protection and assurance, safeguarding your investment with absolute confidence and peace of mind.
Q9. What about the maintenance?
A: To ensure the optimal performance and longevity of your equipment, we recommend an initial maintenance check after 500 hours of use. Thereafter, regular servicing every 2000-3000 hours is advised, tailored to suit your specific environment. This proactive strategy ensures durability and reliability, keeping your equipment in peak condition, 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 thrive even in high-temperature environments. They operate seamlessly within a wide temperature range of -20°C to 45°C (-4°F to 113°F), guaranteeing reliable performance even under the most challenging and extreme conditions.
Q11. Do you offer OEM service?
A: Indeed, we are thrilled to offer both OEM and ODM services, backed 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 boasting an extraordinary lifespan that exceeds 10 years. This ensures dependable 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 utmost ease.
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 who are available for training and installation assistance. Your satisfaction is our utmost priority, ensuring a thoroughly rewarding and supportive experience.
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