Step into the world of engineering excellence with the Sanzhi 200KW Two-Stage Screw Air Compressor, a sophisticated masterpiece crafted with precision by the illustrious Sanzhi (Henan) Compressor Co., Ltd. As a luminary in China's compressor manufacturing realm, we present to you our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor-a beacon of efficiency and performance. Revel in the remarkable value it offers, with exceptional output at an unmatched factory price point. Equipped with avant-garde Centrifugal Fans, this unit is a paragon of energy efficiency and cost-effectiveness, promising significant energy savings. Perfectly designed for stationary applications, this powerhouse is built to conquer the most demanding industrial environments, setting new standards in performance excellence and unwavering reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the dynamic world of air compression, a thrilling pursuit of utmost efficiency unfolds between single-stage and multi-stage compression systems. Ideally, the energy requirements for single-stage processes should align flawlessly with multi-stage systems. However, the real-world scenario dictates additional energy due to unavoidable elements like transmission power losses, bearing-induced friction, and cooling effects from liquid viscosity. By adeptly reducing the compression ratio at each stage, multi-stage compression emerges as the pinnacle of efficiency, demanding substantially less power than single-stage systems. This innovation not only enhances overall system performance but also drastically reduces superfluous energy consumption, establishing an unmatched standard in power optimization.
Behold the revolutionary two-stage screw air compressor, a testament to modern engineering brilliance. This advanced apparatus features a state-of-the-art dual rotary screw design, where each stage is defined by an active screw propelling a passive screw via a precisely engineered external power transfer system. The first stage is equipped with a low-pressure screw assembly, perfectly tuned for optimal efficiency, while the second stage boasts a high-pressure screw assembly. Central to this process are sealing air films that envelop each screw, guiding the compression journey through three crucial phases: the effortless intake of air, a dynamic pressurization process that elevates efficiency to new heights, and the final exhaust phase, completing the cycle with unparalleled precision.
First stage compression: The initiation of the two-stage screw air compressor's operation exemplifies engineering mastery. A highly sophisticated low-pressure screw assembly leads the process, guiding gas into the compression chamber through a meticulously designed suction valve. As the rotor spins with remarkable speed, the gas undergoes an initial compression, setting the stage for intensified compression in the next phase.
Second stage compression: As the operation advances to the second stage, the gas enters an intricately designed, more compact screw space, where pressures and temperatures are meticulously heightened to unrivaled levels. The process reaches a pivotal moment as the exhaust valve is revealed, allowing the high-pressure gases to leave the system, thereby completing the sophisticated compression cycle with exceptional efficiency.
The refined air compression journey initiates with ambient air smoothly traversing through the air filter, merging gently with lubricating oil within the compression chamber. This amalgam undergoes a preliminary compression to intermediate pressure, followed by significant cooling through contact with oil mist in the cooling channel. The cooled gas progresses to the second-stage rotor, where it experiences a secondary compression phase, attaining the desired final exhaust pressure. This meticulously arranged cycle culminates as the compressed gas is elegantly discharged through the exhaust valve, marking the conclusion of a comprehensive and highly 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 excellence with our state-of-the-art centrifugal fan-a masterpiece of pioneering innovation and unmatched efficiency. This groundbreaking system, embellished with a high-speed rotating impeller, meticulously calibrates air velocity, ensuring precise axial airflow into the impeller. This dramatically enhances motor cooling efficiency, a feat unattainable by conventional air-cooled fans. Our cutting-edge design ensures rapid temperature reduction, facilitating seamless and consistent compressor operation while significantly extending the lifespan of your compressor. A truly indispensable asset for any enterprise, promising unparalleled reliability and longevity.
1) Unparalleled Efficiency of PM Motor:Our cutting-edge permanent magnet (PM) motor is meticulously engineered to deliver remarkable constant torque and an expansive weak magnetic range, surpassing standard motors with an extraordinary 20-30% higher efficiency. Even beyond the rated frequency, the PM motor maintains its outstanding efficiency, guaranteeing optimal performance across all operational scenarios and maximizing productivity.
2) Maintenance-Free Motor:Revolutionary in its design, the permanent magnet motor is innovatively conceived without internal bearings, eradicating the usual costs associated with motor bearing maintenance and replacement. This pioneering design choice significantly reduces overall maintenance expenses, elevating operational efficiency to new heights.
3) Integrated Frequency Converter: Equipped with China's premier frequency system, our compressor features extensive speed regulation with unmatched precision. The system intuitively adapts to real-time gas demands, ensuring exceptional energy savings and maximizing operational efficiency, delivering a true competitive advantage.
4) Flawless Transmission Efficiency: Boasting a direct shaft connection structure, the compressor integrates a permanent magnet motor, offering a sleek and compact design. This innovative setup eradicates 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 sophisticated design of the motor significantly reduces impact on power grid equipment, safeguarding electrical systems from potential harm. This enhancement prolongs the overall system lifespan, ensuring reliable and durable performance.
6) Outstanding Energy Savings: With a frequency conversion range spanning an impressive 25% to 100% (compared to the traditional 50% to 100%), our system achieves over 30% energy savings compared to fixed-speed compressors. It also offers approximately 5% more energy savings than standard variable frequency compressors, providing substantial cost benefits for systems with fluctuating 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 singular casing. Each rotor is individually gear-driven to ensure optimal linear speed, achieving peak compression efficiency and reliability.
8) Cutting-Edge Internal Spray Curtain Cooling Method: Our high-efficiency internal spray curtain cooling method delivers exceptional cooling effects, significantly reducing compressed air temperatures. This results in nearly isothermal compression, diminished 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 substantially lowers 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 decreased compression ratio in the two-stage system significantly reduces noise levels, especially 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 comparable to single-stage compressors. This design ensures straightforward maintenance and user-friendly service, facilitating ease of operations.
12) Removable Door Panels for Optimal Access:Designed to perfection with advanced noise-dampening metal plates, this compressor is expertly lined with high-density sound-absorbing material, ensuring it meets rigorous international noise standards. The ingeniously designed door panel allows for effortless opening and detachment, granting an impressive 270-degree comprehensive access. This remarkable feature significantly eases maintenance for personnel, boosting service efficiency and guaranteeing seamless, uninterrupted operations.
1. Unrivaled and Unbeatable Pricing Advantage
We offer our clients irresistibly attractive ex-factory pricing that provides a commanding market edge, allowing them to consistently outshine competitors and firmly establish leadership within their market sectors.
2. Seamless and Effortless Direct Transactions
Our products are shipped directly from our cutting-edge manufacturing facility, enabling us to deliver solutions that are not only cost-effective but also supremely efficient. These solutions are meticulously tailored to flawlessly meet your unique needs and specific requirements.
3. Comprehensive and Versatile OEM & ODM Solutions
With our vast production capabilities and expert management, we offer outstanding OEM/ODM services that are thoughtfully designed to align perfectly with your precise requirements and visionary business goals.
4. Tailored and Personalized Customization Service
Dedicated to fulfilling non-standard export orders, we offer customization in parameters such as voltage, power, and pressure. Connect with us to explore bespoke solutions crafted to meet your specific needs.
5. Support and Flexibility for Small Orders
We invite you to start with a small trial order to experience firsthand the exceptional quality and consistent performance that our products offer.
6. Rapid and Expedited Delivery
Benefit from the swift delivery of our premium products, ensuring that your schedules are met and your operations remain fluid and uninterrupted, optimizing overall efficiency.
7. Empowering Full Authorization
We provide our valued distributors with comprehensive authorization certificates, empowering them to confidently and proudly promote our esteemed SANZHI brand products.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd stands as a paragon of expertise in the realm of air compression technology, boasting over ten years of unrivaled experience. As pioneers in this domain, we present an impressive spectrum of avant-garde products, including our state-of-the-art screw air compressors and groundbreaking screw vacuum pumps. Our extensive array encompasses both standard and low-pressure screw air compressors, alongside cutting-edge permanent magnet frequency conversion models and exceptionally durable two-stage compression units. Setting industry benchmarks, our screw air compressors are intricately engineered for impeccable precision in laser cutting applications. Our versatile offerings also include adaptable single-tank and double-tank mobile screw compressors. Further, our collection is enriched with both electric and diesel mobile screw air compressors, alongside revolutionary screw vacuum pumps, each crafted with meticulous precision and reliability at their core.
Our manufacturing excellence is further amplified by cutting-edge assembly lines, crucial in maintaining our outstanding efficiency levels. With a workforce of over 50 dedicated and proficient professionals, we continually enhance our management systems, employing advanced ERP solutions to considerably curtail lead times and guarantee the swift delivery of our premium products.
Our factory's unwavering commitment to superior management is exemplified by our eminent ISO9001 quality management system certification. We adhere strictly to rigorous quality standards, implementing exhaustive control protocols. Each machine undergoes a comprehensive series of inspections, from material assessments to production supervision and meticulous pre-delivery evaluations, ensuring that only the finest machines reach our valued customers.
Our expertise in customer service is apparent from the initial interaction, where we offer expert pre-sales consultations that assist clients in selecting the perfect air equipment tailored to their specific needs. Our unparalleled customization capabilities allow us to modify both the design and configuration to align with individual preferences, also providing OEM services for distinct dealer specifications. Our dedicated sales and service team ensures prompt and effective responses, guaranteeing a seamless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd, we are devoted to providing top-notch, dependable products while fostering enduring customer relationships. We merge swift delivery with exceptional product quality and competitive pricing, positioning ourselves as your trusted partner for comprehensive compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our factory optimizes client convenience with complimentary transportation from Xinzheng International Airport, merely 30 kilometers away, approximately an hour's drive. We warmly welcome you to visit our distinguished facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a veteran manufacturer specializing in screw air compressors, with over a decade of validated industry experience.
Q2. How do you control quality?
A: 1. We meticulously inspect all raw materials to ensure premium quality from the outset.
2. Our installation procedures are conducted with precision to maintain excellence.
3. Each machine undergoes minimum 5-hour continuous testing prior to 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 tailored precisely 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 take pride in offering a versatile and dynamic selection of voltage options, thoughtfully designed to meet diverse regional requirements. With meticulous configurations such as 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, we ensure seamless integration into your operations. Our steadfast dedication to providing tailored solutions is evident through our exclusive customization services, ensuring each product aligns perfectly with your unique operational needs, delivering unmatched adaptability and efficiency for your enterprise.
Q6. How long is the delivery time?
A: With standard voltage specifications, we have honed the art of swift and efficient order processing, achieving completion within an impressive 15 working days post-confirmation. For orders requiring specific configurations, our proactive and dedicated sales team will collaborate closely with you to develop an accurate and harmonious timeline, ensuring a smooth and timely delivery experience that aligns perfectly with your requirements.
Q7. What's the payment term?
A: Our payment terms are crafted for simplicity and convenience. We request an initial 30% T/T payment upfront to commence the process, followed by a 40% T/T before shipment, and the final 30% T/T upon receiving the B/L copy. We accommodate both USD and RMB currencies, ensuring flexibility and ease for our esteemed clients, making transactions seamless and straightforward.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty on the complete machine, with an extended two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage provides unmatched protection and assurance, safeguarding your investment with peace of mind and confidence.
Q9. What about the maintenance?
A: To ensure optimal performance and longevity, we recommend the initial maintenance after the first 500 hours of use. Thereafter, regular servicing every 2000-3000 hours is advised, tailored to your specific working environment. This ensures durability and reliability, keeping your equipment in peak condition, ready to meet your operational demands.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are meticulously engineered to perform exceptionally in high-temperature environments. They operate flawlessly across a temperature range of -20°C to 45°C (-4°F to 113°F), guaranteeing reliable functionality and performance even under the most demanding and challenging conditions.
Q11. Do you offer OEM service?
A: Indeed, we are thrilled to offer both OEM and ODM services, supported by our highly skilled and innovative design team. We warmly welcome custom orders and are dedicated to transforming your unique concepts into reality, ensuring your vision is realized with precision, excellence, and professionalism.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously engineered for exceptional longevity, typically providing an extraordinary lifespan exceeding 10 years. This ensures reliable and enduring performance, supporting your operations with consistency, resilience, and assurance over the years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to offering steadfast support by providing essential spare parts for your machines. This guarantees a seamless and uninterrupted operational experience, enabling you to maintain optimal performance and ensure continuous productivity.
Q14. How about your after-sales service?
A: We are passionately dedicated to delivering outstanding after-sales service. Our comprehensive offerings include detailed online guides for installation and commissioning, coupled with access to our expert engineers, who are readily available for training and installation assistance. Your satisfaction and success remain our utmost priorities, ensuring a rewarding and fulfilling experience.
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