Internal Structure Frontside: The frontside of the internal structure reveals a meticulously arranged assembly of components, each strategically positioned to enhance the efficiency and reliability of the compressor. This intricate layout is designed to provide easy access for maintenance while maintaining peak operational performance.
Internal Structure Backside: On the backside, the complex yet intelligently arranged mechanisms are visible, showcasing a seamless integration of advanced technologies. This aspect of the design prioritizes both functionality and ease of service, ensuring the longevity and effectiveness of the compressor.
Working Principle: At the heart of this advanced compressor lies a state-of-the-art operational framework. It embodies a blend of cutting-edge engineering and innovative design, creating a seamless process of air intake, compression, and exhaust, which together form the backbone of this remarkable technology.
In the optimal realm of air compression, harnessing energy for a single-stage pressure transmission matches the total energy needs of multi-stage compression. Yet, in practical scenarios, factors like coupling transmission inefficiencies, bearing friction, and cooling viscosity effects increase power requirements. By astutely minimizing the compression ratio at each stage, we can substantially reduce total power usage in multi-stage systems, thereby outstripping the efficiency of single-stage compression. This strategy not only conserves energy but also optimizes performance, making it a cornerstone of advanced air compression technology.
The two-stage screw air compressor is a marvel of precision engineering, featuring a dual-stage rotary screw mechanism where each phase harmoniously integrates active and passive screws. The active screw, powered by an external source, drives the passive screw with finesse. This revolutionary design employs a low-pressure screw assembly initially, which transitions fluidly to a high-pressure system in the subsequent phase. Encased in an advanced sealing air film, each screw optimizes its performance, facilitating a breathtaking transformation of air through three pivotal stages: suction, pressurization, and exhaust, ensuring maximum efficiency throughout the process.
First Stage Compression: During the initial phase of the two-stage screw air compressor, a specialized low-pressure rate screw meticulously compresses the gas. Expertly drawn into the compression chamber via the suction valve, the high-velocity rotation of the screw rotor compresses the gas with precision, setting the stage for the next level of compression. This phase is critical for preparing the gas efficiently for the journey ahead, ensuring a seamless transition to the subsequent stage.
Second Stage Compression: As the gas progresses into the second stage, it encounters a more constricted screw space, resulting in a dramatic increase in temperature and pressure. The exhaust valve opens with exactitude, efficiently releasing the high-pressure gases from the system, symbolizing the triumphant conclusion of the compression process. This stage is crucial for achieving the desired output pressure, marking the compressor's capability in delivering high-performance results.
Natural air is expertly guided into the first compression stage through an advanced air filter, merging harmoniously with precisely measured lubricating oil. This expertly compressed mixture reaches an interstage pressure, setting the stage for further enhancement. Post-compression, the gas travels through a cooling channel where it encounters a substantial oil mist, significantly reducing its temperature. This cooled gas then proceeds to the second-stage rotor, undergoing additional compression to achieve the final exhaust pressure. In a masterful culmination, the compressor releases the gas through the exhaust valve, flawlessly completing the compression cycle with unmatched precision and efficiency.
| 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. |
1) Unparalleled Efficiency of PM Motor:Step into a new era of performance excellence with our Permanent Magnet Motor, where the realms of constant torque and weak magnetic ranges extend dramatically wider. This translates into an awe-inspiring boost in efficiency, outshining traditional motors by an impressive 20-30%. The cutting-edge permanent magnet motor consistently upholds its superior efficiency, even amidst fluctuating frequency conditions, ensuring outstanding and dependable performance every time.
2) Maintenance-Free Motor:Ingeniously designed, this bearing-free permanent magnet motor eradicates the burdensome costs and troubles associated with bearing upkeep and swaps. Revel in a truly maintenance-free operation that guarantees uninterrupted uptime and significantly trims down operational expenses.
3) Advanced Integrated Frequency Converter:Our compressor comes equipped with the nation's foremost frequency system, delivering unmatched precision and an extensive speed regulation spectrum. It intuitively adjusts to actual gas demand, showcasing extraordinary energy-saving capabilities and ensuring that your energy bills are kept at an absolute minimum.
4) Zero Transmission Loss:With an innovative, seamlessly integrated shaft connection between the permanent magnet motor and compressor, traditional couplings and transmission components are rendered obsolete. This groundbreaking design achieves a flawless 100% transmission efficiency, establishing it as an exemplary engineering masterpiece in energy preservation.
5) Variable and Soft Start MechanismsProtect your power grid infrastructure with our sophisticated variable frequency start and soft start mechanisms. By minimizing impact, these features ensure the durability and safeguarding of electrical components, preventing potential damage while optimizing performance stability.
6) Enhanced Energy Conservation:Embark on a journey of remarkable energy conservation with a frequency conversion range spanning from 25% to 100%, far exceeding the traditional 50%-100% spectrum. This unit delivers over 30% energy efficiency when compared to fixed-speed compressors, with even more substantial savings in systems with fluctuating gas requirements.
7) Unique Two-Stage Compression Air End:Uncover the power of our two-stage compression screw design, which flawlessly unifies first and second-stage rotors within a single casing. Driven by precision-engineered gears, each stage optimizes linear speeds, dramatically elevating overall compression efficiency to unprecedented heights.
8) Innovative Internal Spray Curtain Cooling:Leverage the benefits of high-efficiency internal spray curtain cooling, which drastically lowers the temperature of compressed air. This state-of-the-art technique achieves near-isothermal compression, substantially reducing pressure loss and significantly boosting compression efficiency for unrivaled performance.
9) Minimized Internal Leakage:With revolutionary two-stage compression, each stage's compression ratio is decreased, effectively minimizing internal leakage. This enhances volumetric efficiency, guaranteeing optimal performance and reliability.
10) Superior Noise Reduction:Our two-stage compression breakthrough not only reduces the compression ratio for enhanced efficiency but also markedly lowers noise levels, particularly noticeable during unloading, creating a more pleasant and serene working environment.
11) Effortless Maintenance and Service:Crafted with the convenience of single-stage units in mind, apart from the screw air end, our two-stage compressor provides user-friendly maintenance. Its effortless operation ensures straightforward serviceability, heightening the overall user experience.
12) Door Panels are Removable:Featuring sound-dampening metal panels and lined with premium sound-absorbing materials, this unit aligns with international noise standards. The removable door panels offer a generous 270-degree access, vastly simplifying maintenance processes, optimizing service efficiency, and ensuring compliance with global noise standards.
1. Unbeatable Price Advantage
Gain a competitive edge with our extraordinary, factory-direct pricing that keeps you ahead in the dynamic marketplace, offering unparalleled value to our esteemed clients.
2. Seamless Direct Transactions
Experience the benefits of direct factory supply, ensuring you receive our premium products at the most cost-effective rates, maximizing your investment.
3. Comprehensive OEM & ODM Services
Our extensive production expertise and exceptional management capabilities ensure that your OEM/ODM service needs are met with precision and professionalism, tailored to your expectations.
4. Tailored Customization
Leverage our bespoke customization offerings for non-standard specifications, including export, voltage, power, and pressure. Collaborate with us to create solutions that align perfectly with your bespoke needs.
5. Small Order Flexibility
Initiate with a trial order to discover the consistent excellence and dependability that define our products, no matter the order size.
6. Expedited Rapid Delivery
Our commitment to prompt delivery ensures that you receive our high-quality products swiftly, keeping your operations running smoothly and efficiently.
7. Robust Comprehensive Authorization
Empower your distribution with our full authorization certification, enabling you to confidently market and elevate our esteemed SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. stands as an eminent leader in the manufacturing industry, highly acclaimed for our specialized expertise in developing screw air compressors and screw vacuum pumps. Over the span of a decade, we have honed our skills and expanded our product offerings to include an extensive selection of high-quality solutions. Our impressive portfolio boasts normal pressure and low-pressure screw air compressors, innovative permanent magnet frequency conversion screw air compressors, and pioneering two-stage compression screw air compressors. We also provide specialized screw air compressors for laser cutting, dynamic single-tank and double-tank mobile screw air compressors, versatile electric and diesel mobile screw air compressors, and state-of-the-art screw vacuum pumps, among other groundbreaking innovations.
In our state-of-the-art production facility, we achieve unparalleled efficiency through our meticulously designed, lean multi-air compressor assembly lines. Supported by a dedicated team of over 50 extraordinary employees, our operations thrive on continuous improvements in management systems, including ERP, aiming to minimize lead times seamlessly and ensure the swift delivery of superior quality products.
With an unyielding dedication to quality management, our factory proudly holds ISO9001 certification. We strictly adhere to rigorous quality management protocols, ensuring every machine undergoes comprehensive inspections, including material checks, production evaluations, and thorough pre-delivery assessments.
Our stellar customer service journey encompasses every phase from pre-sales to after-sales. Before purchase, we provide expert consultations to guide you in selecting the perfect air equipment. We offer expansive customization options, including bespoke OEM products tailored to meet specific dealer needs. After purchase, our highly skilled sales and service team stands ready to promptly address and fulfill customer requests.
At Sanzhi (Henan) Compressor Co., Ltd., we remain steadfastly committed to delivering superior, reliable products while fostering enduring customer relationships. Our unwavering dedication to efficient delivery, outstanding quality, and competitive pricing positions us as your esteemed partner for the most effective compressed air solutions.
Our strategically located factory in Xinzheng City, Henan Province, China, offers complimentary transportation from Xinzheng International Airport, a mere 30 kilometers away. This convenient journey, which takes approximately one hour, ensures a warm welcome to our esteemed company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, boasting over a decade of industry excellence.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections of all raw materials to ensure top-notch quality.
2. We uphold strict control over installation procedures to maintain superior standards.
3. Every machine undergoes at least five hours of continuous testing before it is dispatched to guarantee reliability.
Q3. What information must I provide to get the suitable machine?
1. Desired air delivery capacity (Unit: CFM or m³/Min)
2. Required working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency in your country (V/Hz)
4. Additional accessories needed, such as air tanks, filters, or air dryers.
Provide us with this precise information, and we will craft a tailored solution to perfectly suit your needs!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: Sanzhi air compressors are meticulously crafted to meet a diverse range of voltage requirements, seamlessly integrating with various standards including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. For those in pursuit of something distinctive, we provide bespoke customization to precisely meet your unique specifications, ensuring the ideal solution tailored to your specific needs.
Q6. How long is the delivery time?
A: For orders with standard voltage, we pledge a swift delivery within a remarkable timeframe of just 15 working days post order confirmation. For non-standard specifications, our dedicated and highly responsive sales team stands ready to offer personalized support, ensuring your requirements are met with the utmost efficiency and without delay.
Q7. What's the payment term?
A: Our payment terms are thoughtfully designed to provide exceptional flexibility and convenience, featuring a structure of 30% T/T in advance, 40% T/T prior to shipment, and a final 30% T/T upon receiving the B/L copy. You can freely choose between payments in USD or RMB, depending on your preference.
Q8. How about your warranty?
A: We proudly guarantee the exceptional quality of our products with a comprehensive one-year warranty covering the entire machine, further enhanced by an additional two-year warranty for the screw air compressor. Please note, consumable spare parts are not included within the warranty's coverage.
Q9. What about the maintenance?
A: To ensure optimal performance, the initial maintenance should be carried out after 500 hours of operation. Subsequently, we recommend scheduling regular maintenance every 2000-3000 hours, tailored to the specific conditions of your operational environment for maximum efficiency.
Q10. Can machines be run in high-temperature environment?
A: Indeed, our machines are masterfully engineered to maintain exceptional performance even in high-temperature environments, with a robust operational capability spanning a temperature range from -20° to 45°(-4ºF to 113ºF), guaranteeing reliability and efficiency regardless of the heat.
Q11. Do you offer OEM service?
A: Yes, indeed! We are delighted to offer our OEM & ODM services. Our highly skilled design team is fully prepared to handle customized orders, ensuring your specific needs and visions are realized with precision and creativity.
Q12. How long could your air compressor be used?
A: Our air compressors are expertly crafted for enduring longevity, offering steadfast reliability and robust performance that surpasses expectations and extends well beyond 10 years of service.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are dedicated to ensuring your machines operate smoothly and without interruption. We provide essential spare parts whenever necessary, ensuring peace of mind and continuous productivity.
Q14. How about your after-sales service?
A: We provide a comprehensive suite of after-sales services, from online guidance for installation and commissioning to the deployment of our expert engineers for practical, hands-on training and installation support, ensuring your complete satisfaction and operational success.
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