Unlock the pinnacle of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, a flagship offering from China's prestigious leader, Sanzhi (Henan) Compressor Co., Ltd. Embrace the advantages of direct-from-factory pricing on this cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Impeccably engineered, it promises extraordinary energy efficiency and significant savings. Outfitted with top-tier High-Quality Centrifugal Fans, this stationary powerhouse redefines what it means to be reliable and high-performing, catering to the most demanding industrial scenarios with ease. Revolutionize your operations with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, robustly constructed for intense industrial applications, ensuring unparalleled durability and steadfast performance. Immerse yourself in the remarkable efficiency, steadfast reliability, and cost-effectiveness of Sanzhi's pioneering compressor technology, crafted to elevate your industrial operations to new heights of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression setting, the energy required for single-stage pressure transfer is theoretically on par with multi-stage compression combined. Yet, practical scenarios often introduce challenges like coupling transmission losses, bearing-induced friction, and increased liquid viscosity, which elevate energy demands. To enhance efficiency, reducing the compression ratio at each stage is key, so that the cumulative energy necessary for multi-stage compression remains below that of single-stage operations.
The two-stage screw air compressor epitomizes cutting-edge engineering with its exquisite dual rotary screw design, featuring both an active and a passive screw. The active screw, externally driven, powers the passive screw, commencing with a low-pressure screw assembly in the initial stage, culminating in a high-pressure screw assembly in the subsequent stage. Each screw is encased in a sealing air film, facilitating gas compression through harmonious cycles of suction, pressurization, and exhaust during its rotation.
First Stage Compression: This foundational phase sees the low-pressure screw ensemble starting the gas compression journey. Gas is drawn into the screw compression chamber via the suction valve. The rapid rotation of the screw rotor amplifies the gas compression, deftly guiding it to the second stage.
Second Stage Compression: In this pivotal phase, gas enters a more confined screw chamber, undergoing compression at heightened temperatures and pressures. The exhaust valve then opens, meticulously releasing the high-pressure gas from the system with remarkable precision.
The process kicks off as ambient air is drawn into the initial stage through an air filter, blending subtly with lubricating oil within the compression chamber. Initially, the gas is compressed to an interstage pressure, then it is cooled via interaction with oil mist in the cooling channel, drastically reducing its temperature. The cooled gas is then directed to the second-stage rotor for further compression, achieving the final exhaust pressure. This seamless cycle concludes with the compressor efficiently releasing high-pressure gas through the exhaust valve.
| 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. |
Embark on a journey to explore the unparalleled power and efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! Unleashing a high-speed rotating impeller, this state-of-the-art system deftly manipulates air flows, ensuring exceptional axial entry and rapid cooling. It stands head and shoulders above traditional air-cooled systems, providing continuous operational support and radically extending service longevity.
1) High Efficiency of PM Motor:Our trailblazing permanent magnet motor presents an expanded constant torque and weak magnetic range, offering a remarkable 20-30% boost in efficiency compared to conventional motors. It consistently delivers outstanding performance well beyond the rated frequency.
2) Maintenance-Free Motor:With brilliant engineering that excludes internal bearings, our advanced permanent magnet motor eradicates the financial burdens of maintenance and replacement associated with standard motor bearings.
3) Integrated Frequency Converter:Showcasing China's premier frequency system, our compressor reveals a broad and precise speed regulation range, expertly adapting to real-time gas demands and delivering extraordinary energy-saving advantages.
4) Zero Transmission Loss:The seamless integrated shaft structure connects the permanent magnet motor directly to the compressor, eliminating the need for couplings and transmission parts, ensuring an impeccable 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This innovative feature substantially reduces the impact on power grid equipment, effectively shielding electrical systems from potential damages.
6) Reduced Energy Consumption:Our frequency conversion spans a range from 25% to 100%, surpassing the typical 50% to 100%, resulting in over 30% energy savings compared to fixed-speed compressors and approximately 5% more than standard variable frequency models. Larger variance in system gas consumption further amplifies these savings.
7) Unique Two-Stage Compression Air End:Our masterfully crafted air end integrates the first and second-stage compression rotors within a unified case, each gear-driven to ensure optimal linear speed, thus amplifying compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our advanced internal spray curtain cooling dramatically lowers the temperature of compressed air. Achieving near-isothermal compression, it minimizes interstage pressure loss, reduces compression ratios, and elevates overall efficiency.
9) Minimized Internal Leakage:By effectively reducing each stage's compression ratio, our two-stage compression technique minimizes internal leakage from high to low-pressure ends, significantly enhancing volume efficiency.
10) Noise Reduction:The two-stage compression system significantly minimizes the compression ratio, leading to remarkably reduced noise levels, especially during unloading cycles.
11) Easy Maintenance and Service:With a two-stage compressor unit, the structural and system similarities to single-stage compression simplify user maintenance and servicing, aside from the screw air end.
12) Door panels are removable:The casing, constructed from noise-dampened metal, includes panels lined with high-density sound-absorbing materials, adhering to global noise standards. The door panels are designed for easy opening and disassembly, offering 270-degree access for maintenance personnel, enhancing the ease of servicing.
1. Unmatched Price Competitiveness
Experience the pinnacle of price competitiveness with our exclusive direct ex-factory pricing model. Amplify your market legacy with significant cost reductions, all while maintaining the premium quality standards you deserve. Empower your enterprise to ascend to new heights with unparalleled confidence and commanding pricing leverage.
2. Seamless Direct Transactions
Revel in the simplicity of direct transactions through our factory-to-customer framework. By removing intermediaries, we provide cost-effective solutions that significantly amplify your purchasing power. Enjoy a blend of affordability and uncompromised superior quality, delivered straight from our factory to you.
3. Exceptional OEM & ODM Services
Unlock the potential of our extraordinary OEM and ODM services, supported by state-of-the-art production and management expertise. We meticulously customize each project to align with your specific requirements, working closely with you to bring your vision to life. Depend on our precision and dedication to achieve exceptional outcomes.
4. Tailored Customization
Discover endless opportunities with our bespoke customization services. We eagerly accept non-standard, export, and personalized orders for varying voltage, power, pressure, and more. Collaborate with us to design solutions that perfectly match your distinct specifications, ensuring they meet your exact needs.
5. Acceptance of Small Orders
Begin your journey with SANZHI's top-tier quality by starting with a small trial order. See for yourself why clients continuously choose us for extraordinary performance and dependability. Discover the difference with our outstanding product offerings and make informed decisions.
6. Swift and Reliable Delivery
Take advantage of our swift and reliable delivery services, complemented by exceptional product quality. We ensure punctual deliveries so that your operations proceed smoothly, keeping you competitive and ahead in the market.
7. Comprehensive Authorization
Strengthen your sales strategy with our comprehensive authorization for esteemed distributors. Market SANZHI brand products with utmost confidence, utilizing our brand's prestigious reputation to boost your sales performance and credibility within the industry.
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of excellence in the manufacturing industry, renowned for producing high-quality screw air compressors and vacuum pumps. With over a decade of unwavering commitment, our expansive range includes standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, sophisticated two-stage compression units, specialized laser cutting compressors, and adaptable mobile screw compressors. Available in single and double-tank variants, our offerings come in both electric and diesel versions, further enhanced by our innovative screw vacuum pumps.
Our production processes epitomize efficiency and modernity, showcasing state-of-the-art multi-air compressor assembly lines. Our skilled team of over 50 dedicated employees continually enhances ERP-driven management systems, significantly reducing lead times and ensuring the timely delivery of products that meet the highest standards of excellence.
Adhering to the highest standards, our factory proudly holds ISO9001 certification, a testament to our unwavering commitment to quality management. We rigorously enforce comprehensive quality control measures, ensuring each machine undergoes meticulous material inspections, production assessments, and thorough pre-delivery checks, guaranteeing unparalleled reliability and performance.
Our customer service ethos is unmatched. Our pre-sales team offers expert guidance to help you select the ideal air equipment, with an array of extensive customization options for appearance and configuration. We excel in creating bespoke OEM products tailored to meet specific dealer requirements. Our after-sales team, composed of experienced professionals, ensures swift and effective responses to all customer inquiries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are dedicated to delivering high-performance, reliable products that foster enduring customer relationships. Our efficient delivery schedules, superior machines, and competitive pricing guarantee that you receive exceptional compressed air solutions time and time again.
Strategically located in Xinzheng City, Henan Province, China, our factory offers excellent accessibility. We provide complimentary transportation from Xinzheng International Airport to our premises, a short 30-kilometer journey taking approximately one hour. We warmly invite you to visit us and experience our hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a specialized manufacturer focusing exclusively on screw air compressors, backed by over a decade of professional experience and expertise.
Q2. How do you control quality?
A: 1. We conduct strict inspections of all raw materials.
2. We exercise rigorous control over installation procedures.
3. Every machine undergoes a minimum of 5 hours of continuous testing before dispatch to ensure peak performance.
Q3. What information must I provide to get the suitable machine?
1. The desired air delivery capacity (Unit: CFM or m³/Min).
2. The required working pressure (Unit: PSI, Bar, or Mpa).
3. The voltage and frequency specific to your location (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, or air dryers.
Provide us with these details, and we will meticulously tailor a solution to meet your precise 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 for air compressors?
A: Sanzhi offers compressors in a range of voltages, including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, 440V/60Hz/3P, and can customize according to your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage specifications, we are thrilled to guarantee an impressively swift delivery time of just 15 working days, following order confirmation. For those needing bespoke solutions with non-standard voltage specifications, our expert sales team is ready to provide precise, customized delivery timelines that perfectly align with your unique needs.
Q7. What's the payment term?
A: To ensure a smooth and effortless transaction, our payment terms are structured as follows: a 30% T/T deposit is needed initially, followed by a subsequent 40% T/T payment prior to shipment, and the final 30% T/T upon receipt of the B/L copy. We offer the flexibility of payments in both USD and RMB to suit your preferences.
Q8. How about your warranty?
A: Our robust warranty program is meticulously crafted to deliver peace of mind, offering a solid one-year warranty for the entire machine. In addition, we extend a comprehensive two-year warranty for the screw air compressor, ensuring thorough coverage for all non-consumable components.
Q9. What about the maintenance?
A: We recommend an initial maintenance check-up after the first 500 operating hours. Thereafter, routine maintenance should be performed every 2000-3000 hours, contingent on the specific working conditions, to sustain optimal performance and enhance longevity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to uphold peak performance even in high-temperature environments. They efficiently operate within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring reliable functionality and consistent results.
Q11. Do you offer OEM service?
A: Yes, we are proud to offer an expansive array of OEM and ODM services. Our dedicated design team is committed to delivering innovative and adaptable solutions, precisely tailored to meet your unique specifications and business goals.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for exceptional durability, proudly boasting an impressive lifespan that exceeds 10 years. This ensures long-term reliability and peace of mind for your operations, paving the way for continued success.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we guarantee the availability of essential spare parts for all our machinery. This ensures efficient maintenance and timely repairs, keeping your operations running smoothly and minimizing any downtime.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service is meticulously designed to support your needs, offering detailed online guidance for installation and commissioning. To further enhance convenience, we can arrange for engineers to provide on-site training and installation support, ensuring a seamless and efficient operation from the very start.
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