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
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 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 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, 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 unbeatable ex-factory pricing, offering an extraordinary advantage that ensures a commanding market position. This strategic edge allows our partners to eclipse competition and assert their dominance in their industry sectors with confidence.
2. Effortless Direct Transactions
Our products are shipped straight from our state-of-the-art manufacturing facility, enabling us to offer solutions that are both highly cost-effective and supremely efficient. These offerings are crafted with precision to seamlessly align with your distinct requirements and detailed specifications.
3. Comprehensive OEM & ODM Solutions
Leveraging our expansive production capabilities and expert management team, we deliver outstanding OEM/ODM services. These services are meticulously customized to align with your specific needs and support your ambitious business goals.
4. Personalized Customization Service
Committed to supporting non-standard export orders, we provide customization in parameters including voltage, power, and pressure. Partner with us to explore tailored solutions that cater to your unique specifications.
5. Support for Small Orders
We warmly invite you to start your journey with a small trial order, providing you the opportunity to experience the exceptional quality and consistent performance that our products bring.
6. Expedited Delivery
Take advantage of our swift delivery of premium products, ensuring your timelines are met and your operations remain fluid and uninterrupted, optimizing overall efficiency.
7. Full Authorization
We equip our valued distributors with full authorization certificates, empowering them to market our esteemed SANZHI brand products with assuredness and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of excellence in the air compression industry, boasting over a decade of unmatched expertise. As industry leaders, we present a portfolio rich in innovation and diversity, featuring state-of-the-art screw air compressors and pioneering screw vacuum pumps. Our extensive range includes standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, and robust two-stage compression units. Our screw air compressors, meticulously crafted for laser cutting, redefine industry benchmarks. We offer versatile single-tank and double-tank mobile screw options, an array of electric and diesel mobile screw air compressors, and revolutionary screw vacuum pumps, all engineered with precision and unwavering reliability.
Our manufacturing prowess is augmented by cutting-edge assembly lines, vital for ensuring exceptional efficiency. With a team of over 50 highly skilled professionals, we continuously optimize our management systems. By employing advanced ERP solutions, we significantly reduce lead times, ensuring our superior products are swiftly delivered to meet our customers' demands.
Our dedication to exemplary management is evidenced by our prestigious ISO9001 quality management system certification. We adhere to stringent quality standards, executing comprehensive control protocols. Each machine undergoes a rigorous series of inspections, including meticulous material evaluations, in-depth production oversight, and detailed pre-delivery assessments, ensuring only the finest machines reach our valued customers.
Excellence in customer service is evident from the outset 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 adjust both 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 nurturing 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 located in Xinzheng City, Henan Province, China, our factory enhances your convenience with complimentary transportation from Xinzheng International Airport, merely 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, 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: 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?
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, and fostering a strong, long-term relationship.
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