Unlock the unparalleled power and efficiency of your industrial operations with the exceptional Large Power Oil-Lubricated Screw Compressor from Sanzhi (Henan) Compressor Co., Ltd., proudly distinguished as China's foremost supplier. Discover the remarkable advantages of factory-direct pricing on this cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This marvel of engineering is meticulously crafted to deliver optimal energy savings and unmatched efficiency, featuring premium High-Quality Centrifugal Fans. Establish new benchmarks in reliability and performance with this stationary powerhouse, expertly designed for even the most rigorous industrial applications. Enhance your operational excellence with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, celebrated for its extraordinary durability and steadfast consistency. Embark on a transformative journey to the pinnacle of efficiency, reliability, and cost-effectiveness with Sanzhi's state-of-the-art compressor technology, masterfully engineered to elevate your industrial processes to new peaks of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an idealized scenario of air compression, the energy required for a single-stage process would perfectly match the cumulative energy demand of multi-stage operations. However, real-world intricacies such as coupling transmission complexities, friction from bearings, and the cooling effect imposed by fluid viscosity contribute to increased energy consumption. To optimize efficiency, it is vital to minimize the compression ratio at each stage. This strategic approach ensures that the total power necessary for multi-stage compression is consistently lower than that of a single-stage operation.
The two-stage screw air compressor exemplifies contemporary engineering excellence, showcasing a dual rotary screw configuration with both active and passive screws. The active screw, powered by an external source, activates the passive screw. The process initiates with a low-pressure screw assembly in the first stage, transitioning to a high-pressure screw assembly in the second stage. Each screw is encased in an air film that seals it, facilitating gas compression through a flawless cycle of suction, pressurization, and release as the screws rotate in harmony.
First Stage Compression: This crucial phase marks the beginning of the gas compression journey. Gas is drawn into the screw's compression chamber via the suction valve, where the rotor's rapid rotation compresses the gas efficiently, channeling it seamlessly to the second stage.
Second Stage Compression: At this advanced stage, the gas enters a more compact screw chamber, subjected to compression at markedly higher temperatures and pressures. The exhaust valve then expertly opens, allowing the high-pressure gas to exit the system with precision.
The process initiates with ambient air being drawn into the initial stage through an air filter, where it combines with a small amount of lubricating oil within the compression chamber. This mixture is compressed to an intermediate pressure and then cooled in a channel where it encounters oil mist, effectively reducing its temperature. This cooled gas proceeds to the second-stage rotor, where it undergoes further compression to attain the ultimate exhaust pressure. The process culminates in the elegant release of high-pressure gas through the exhaust valve, completing the cycle efficiently.
| 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 extraordinary power and unmatched efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This avant-garde system, adorned with a high-speed rotating impeller, masterfully accelerates and decelerates air, ensuring optimal axial entry and rapid cooling. It outperforms traditional air-cooled fans, facilitating seamless, uninterrupted operations while dramatically extending service life.
1) High Efficiency of PM Motor:Unleash the power of our state-of-the-art permanent magnet motor, an engineering marvel that boasts an expanded constant torque and weak magnetic range. Experience an extraordinary 20-30% boost in efficiency over standard motors, guaranteeing consistently superior performance even beyond the rated frequency.
2) Maintenance-Free Motor:Ingeniously crafted without internal bearings, our cutting-edge permanent magnet motor eradicates the costly maintenance and replacement issues commonly associated with conventional motor bearings, ensuring a hassle-free experience.
3) Integrated Frequency Converter:Equipped with China's premier frequency system, our compressor offers an expansive and precise speed regulation range. It adeptly aligns with actual gas demands to deliver exceptional energy-saving benefits, making every operation efficient and cost-effective.
4) Zero Transmission Loss:Enjoy seamless connectivity with an integrated shaft structure that flawlessly connects the permanent magnet motor directly to the compressor, eliminating couplings and transmission components, and ensuring unmatched 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:Our advanced variable frequency start and soft start feature significantly reduce strain on power grid equipment, effectively safeguarding electrical systems from potential harm and prolonging their lifespan.
6) Reduced Energy Consumption:Our exceptional frequency conversion range from 25% to 100% surpasses the conventional 50% to 100% range. This innovation translates to over 30% energy savings compared to fixed-speed air compressors and about 5% more than standard variable frequency compressors. Greater fluctuations in system gas consumption further amplify these energy-saving effects.
7) Unique Two-Stage Compression Air End:Our ingeniously crafted air end showcases first-stage and second-stage compression rotors within a single case, each gear-driven. This strategic design ensures optimal linear speed and enhances overall compression efficiency, setting new benchmarks in performance.
8) Innovative Internal Spray Curtain Cooling Method:Our pioneering internal spray curtain cooling technique provides exemplary cooling, effectively reducing the temperature of compressed air. It achieves near-isothermal compression, diminishes interstage pressure loss, lowers compression ratios, and significantly boosts overall compression efficiency.
9) Minimized Internal Leakage:By ingeniously reducing the compression ratio for each stage, our two-stage compression method minimizes internal leakage between high and low-pressure ends, significantly enhancing volume efficiency and ensuring optimal performance.
10) Noise Reduction:Our revolutionary two-stage compression system markedly reduces the compression ratio, leading to a substantial decrease in noise levels, particularly during unloading, ensuring a quieter, more pleasant working environment.
11) Easy Maintenance and Service:Boasting a two-stage compressor unit, its similarities in systems and structures to single-stage compression make maintenance and user servicing effortlessly straightforward, aside from the screw air end, simplifying upkeep for users.
12) Door panels are removable:The unit's casing is crafted from noise-treated metal plates, with panels lined with high-density sound-absorbing material to ensure noise levels comply with international standards. The door plate can be opened and removed, offering a 270-degree all-around access that facilitates maintenance personnel's access to the unit's interior, significantly enhancing the ease of service and upkeep.
1. Unmatched Price Competitiveness
Discover our unbeatable direct ex-factory pricing designed to provide our esteemed clients with a commanding competitive edge in their respective markets. Experience substantial cost savings while maintaining unparalleled quality, empowering you to confidently dominate your market space with Sanzhi's advantage.
2. Seamless Direct Transactions
Our products are shipped directly from the heart of our manufacturing site, delivering cost-effective solutions that never compromise on quality. By eliminating intermediaries, we transfer savings directly to you, guaranteeing exceptional value and an unwavering commitment to excellence.
3. Exceptional OEM & ODM Services
Harnessing our cutting-edge production and superior management capabilities, we offer exceptional OEM and ODM services, meticulously tailored to your specific requirements. Partner with Sanzhi to bring your vision to life with precision and extraordinary quality.
4. Tailored Customization
We welcome requests for non-standard, export, and customized orders related to voltage, power, pressure, and more. Engage with us to explore your unique requirements, and we will engineer a solution perfectly aligned with your distinct specifications.
5. Welcoming Small Order Requests
Initiate with a small trial order to witness firsthand the superior quality of our products. Experience why clients repeatedly choose SANZHI for its exceptional performance and steadfast reliability.
6. Swift and Reliable Delivery
Benefit from our premium product range, complemented by our fast and reliable delivery services. We ensure your orders arrive punctually, optimizing your operational efficiency and keeping your business running smoothly.
7. Comprehensive Authorization Support
We extend full authorization certificates to our valued distributors, empowering you to promote SANZHI brand products with complete confidence. Utilize the strength of our brand to elevate your sales and strengthen your market presence.
Sanzhi (Henan) Compressor Co., Ltd. stands as a distinguished titan in the manufacturing industry, celebrated for its unparalleled screw air compressors and vacuum pumps. Boasting a rich legacy of over ten years, Sanzhi offers an impressive array of products, from standard and low-pressure screw air compressors to state-of-the-art permanent magnet frequency conversion models. Our sophisticated two-stage compression units, specialized compressors for laser cutting, and versatile mobile screw compressors cater to diverse needs. Available in both single and double-tank configurations, our products offer a range of power sources, from electric to diesel, and are enhanced by our pioneering screw vacuum pumps.
At the heart of our production prowess lies our cutting-edge multi-air compressor assembly lines, a testament to efficiency and modern innovation. Backed by a talented team of over 50 dedicated professionals, we continually refine our management systems, powered by ERP, to drastically cut down lead times, ensuring the expeditious delivery of our outstanding products.
Exemplifying our commitment to excellence, our manufacturing facility boasts the esteemed ISO9001 certification, symbolizing our steadfast dedication to exceptional quality management. We enforce rigorous quality control protocols, ensuring each product undergoes precise material inspections, comprehensive production assessments, and exhaustive pre-dispatch evaluations before leaving our facility.
Our customer service philosophy is second to none. Our astute pre-sales team provides expert advice in choosing the ideal air equipment, offering extensive customization in both design and functionality. We excel in creating bespoke OEM products to meet the precise specifications of our dealers. Our after-sales team, comprising seasoned professionals, is devoted to providing quick and efficient solutions to all customer queries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are driven by a commitment to deliver high-performance, dependable products that cultivate long-lasting customer relationships. Our efficient delivery timelines, superior machines, and competitive pricing ensure outstanding compressed air solutions in every engagement.
Nestled strategically in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transport from Xinzheng International Airport to our facility, a brief 30-kilometer journey that takes around an hour. We cordially invite you to visit us and experience our dedication firsthand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: We are a specialized manufacturer of screw air compressors, with a wealth of over ten years of industry expertise.
Q2. How do you ensure quality control?
A: 1. We conduct rigorous inspections of all raw materials.
2. We maintain stringent oversight of the installation processes.
3. Every unit undergoes a minimum of 5 hours of continuous testing before shipment.
Q3. What details must I provide to obtain the right machine?
1. Specify the desired air delivery capacity (Units: CFM or m³/Min).
2. State the required working pressure (Units: PSI, Bar, or Mpa).
3. Supply the voltage and frequency specifications specific to your location (V/Hz).
4. Indicate any additional accessories required, such as an air tank, filters, or air dryers.
Provide these details, and we will customize the perfect solution for you!
Q4. What are the standard unit conversions?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: Sanzhi proudly presents a versatile range of voltage options for our compressors, including: 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Moreover, we offer bespoke customization to meet your unique requirements, ensuring our superior products seamlessly align with your specific needs.
Q6. What is the typical delivery time?
A: Enjoy swift delivery with our standard voltage models, featuring a lead time of just 15 working days post-order confirmation. For non-standard voltage requests, our expert sales team will customize a delivery schedule that precisely matches your needs, providing a tailored solution for your distinct demands.
Q7. What's the payment term?
A: Our payment process is meticulously designed for your convenience, including an initial 30% T/T deposit, a subsequent 40% T/T prior to shipment, and the final 30% T/T upon receipt of the B/L copy. We accept payments in both USD and RMB, accommodating your preferred currency to ensure seamless transactions.
Q8. How about your warranty?
A: Relish in the confidence provided by our comprehensive warranty program: a full one-year warranty covers the entire machine, supplemented by an additional two-year warranty for the screw air compressor, covering all non-consumable parts to guarantee enduring protection and peace of mind.
Q9. What about the maintenance?
A: We advocate for your first maintenance inspection after 500 hours of use. Subsequently, regular maintenance should be scheduled every 2000-3000 hours, tailored to specific working conditions, to ensure optimal performance and sustained reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are meticulously engineered to excel in high-temperature conditions. They perform efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring reliable performance even in the most demanding environments.
Q11. Do you offer OEM service?
A: Certainly, we extend comprehensive OEM and ODM services. Our dedicated design team is enthusiastic about delivering innovative and flexible solutions that align seamlessly with your brand vision, ensuring consistent integration with your specifications.
Q12. How long could your air compressor be used?
A: Built for remarkable durability, our air compressors boast an extraordinary lifespan exceeding 10 years, offering unrivaled reliability and lasting peace of mind for the long term.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we guarantee the provision of vital spare parts for all our machines, facilitating efficient maintenance and swift repairs to ensure uninterrupted operations.
Q14. How about your after-sales service?
A: Our all-encompassing after-sales service includes comprehensive online guidance for installation and commissioning. For added convenience, we offer the possibility of dispatching engineers for on-site training and installation support, ensuring a smooth and successful launch of your operations.
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