Step into the future of industrial excellence with Sanzhi (Henan) Compressor Co., Ltd.'s powerhouse offering: the Large Power Oil-Lubricated Screw Compressor. As China's foremost leader in compressor technology, Sanzhi delivers unparalleled value through factory-direct pricing of the pioneering Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This engineering marvel is meticulously constructed to offer remarkable energy savings and superior efficiency. Outfitted with top-tier High-Quality Centrifugal Fans, this stationary dynamo sets new standards for reliability and performance, making it the ultimate solution for the most demanding industrial applications. Elevate your operations with the 185kw High Volume Two-Stage Screw Air Compressor from Sanzhi, crafted for intense industrial use with unmatched durability and consistent output. Uncover the remarkable efficiency, steadfast reliability, and cost-effectiveness of Sanzhi's state-of-the-art compressor technology. Transform your industrial processes with Sanzhi's innovations, propelling them 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 equates to that of combined multi-stage compression. Yet, real-world applications introduce factors like coupling transmission inefficiencies, bearing friction, and cooling effects due to liquid viscosity, increasing energy demands. To enhance efficiency, reducing the compression ratio at every stage is paramount, ensuring that the cumulative energy for multi-stage compression is lower than single-stage operations.
The two-stage screw air compressor epitomizes advanced engineering with its intricate dual rotary screw design, featuring both an active and a passive screw. The active screw is externally powered, driving the passive screw. The process begins with a low-pressure screw setup in the initial stage and transitions to a high-pressure screw assembly in the subsequent stage. Each screw is encased in a sealing air film, aiding gas compression through rhythmic cycles of suction, pressurization, and exhaust during rotation.
First Stage Compression: In this initial phase, the low-pressure screw assembly begins the gas compression journey. Gas is drawn into the screw compression chamber through the suction valve, where the rapid rotation of the screw rotor intensifies the process, skillfully directing the compressed gas to the next stage.
Second Stage Compression: In this pivotal phase, gas is compressed in a more confined screw chamber at higher temperatures and pressures. Upon reaching optimal compression, the exhaust valve opens, releasing the highly pressurized gas from the system with precision and accuracy.
The process initiates with ambient air being drawn into the first stage via an air filter, where it mingles with a small amount of lubricating oil within the compression chamber. The gas is first compressed to an interstage pressure, then cooled in the cooling channel by interacting with oil mist, substantially reducing its temperature. The cooled gas proceeds to the second-stage rotor for further compression, achieving the final exhaust pressure. Ultimately, the compressor efficiently discharges 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. |
Unveil the exceptional prowess and unmatched efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This state-of-the-art system, equipped with a high-speed rotating impeller, masterfully regulates air flows for outstanding axial entry and rapid cooling. It eclipses traditional air-cooled systems, ensuring seamless operational continuity and significantly prolonging service life.
1) High Efficiency of PM Motor:Our trailblazing permanent magnet motor features an extended constant torque and weak magnetic range, offering 20-30% greater efficiency than traditional motors. It maintains exemplary performance even beyond the rated frequency.
2) Maintenance-Free Motor:Ingeniously crafted without internal bearings, our cutting-edge permanent magnet motor removes the expensive maintenance and replacement needs commonly associated with standard motor bearings.
3) Integrated Frequency Converter:Equipped with China's premier frequency system, our compressor showcases a wide and accurate speed regulation range, expertly adapting to real-time gas demands, delivering exceptional energy-saving advantages.
4) Zero Transmission Loss:The integrated shaft structure seamlessly connects the permanent magnet motor to the compressor, eliminating the requirement for couplings and transmission parts, ensuring flawless 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This feature significantly reduces the impact on power grid equipment, providing effective protection against potential electrical system damage.
6) Reduced Energy Consumption:Our frequency conversion spans from 25% to 100%, surpassing the usual 50% to 100% range, achieving over 30% energy savings compared to fixed-speed compressors and about 5% more than standard variable frequency models. Larger fluctuations in system gas consumption further enhance these savings.
7) Unique Two-Stage Compression Air End:Our exceptionally engineered air end integrates first and second-stage compression rotors within a single casing, each directly driven by gears, ensuring optimal linear speed and maximizing compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our pioneering internal spray curtain cooling technique delivers superior cooling by significantly lowering the air's temperature during compression. It achieves nearly isothermal compression, reduces interstage pressure loss, lowers compression ratios, and enhances overall efficiency.
9) Minimized Internal Leakage:By effectively minimizing the compression ratio for each stage, our two-stage compression approach significantly reduces internal leakage from high to low-pressure zones, greatly enhancing volume efficiency.
10) Noise Reduction:The two-stage compression system considerably decreases the compression ratio, leading to substantially reduced noise levels, especially during unloading cycles.
11) Easy Maintenance and Service:Featuring a two-stage compressor unit, the similarities in systems and structures to single-stage compression make user maintenance and service straightforward, aside from the screw air end.
12) Door Panels are Removable:The casing, crafted from noise-treated metal, includes panels with high-density sound-absorbing materials, ensuring compliance with global noise standards. The door panels are designed to open and be disassembled, offering 270-degree access for maintenance personnel, enhancing service ease.
1. Unmatched Price Competitiveness
Unlock the potential of unbeatable pricing with Sanzhi's direct ex-factory model. This strategy allows your business to flourish by achieving substantial cost savings without sacrificing quality. Dominate your market with confidence, leveraging the formidable pricing advantage that sets you apart.
2. Seamless Direct Transactions
Experience the ease and efficiency of seamless direct transactions through our factory-to-customer approach. By cutting out intermediaries, we provide budget-friendly solutions that enhance your purchasing power, delivering outstanding quality directly to you at an affordable price.
3. Exceptional OEM & ODM Services
Take advantage of our superior OEM and ODM services, supported by cutting-edge production and management expertise. We customize each project to meet your exact requirements, working in close collaboration to bring your vision to life with precision and excellence.
4. Tailored Customization
Discover endless opportunities with our tailored customization services. We accommodate non-standard, export, and custom orders, whether in voltage, power, or pressure. Collaborate with us to create solutions perfectly tailored to your specific requirements, ensuring a flawless fit for your needs.
5. Acceptance of Small Orders
Start your journey with SANZHI's top-tier quality by placing a small trial order. Discover why clients consistently rely on us for unmatched performance and dependability. Experience firsthand the exceptional difference our products deliver.
6. Swift and Reliable Delivery
Benefit from our prompt and reliable delivery services, complemented by premium product quality. We ensure timely arrivals to keep your operations running smoothly and maintain your competitive edge in the dynamic market environment.
7. Comprehensive Authorization
Empower your sales strategy with our extensive authorization for valued distributors. Promote SANZHI brand products with full confidence, using our esteemed brand reputation to boost your sales performance and industry credibility.
Sanzhi (Henan) Compressor Co., Ltd. is a leader in the manufacturing sphere, revered for its unparalleled production of top-tier screw air compressors and vacuum pumps. With over ten years of steadfast focus, our expansive array boasts standard and low-pressure screw air compressors, avant-garde permanent magnet frequency conversion models, dual-stage compression units, and specially designed laser cutting compressors, alongside adaptable mobile screw compressors. Offered in both single and double-tank configurations, our products are available in electric and diesel versions, all enhanced by our revolutionary screw vacuum pumps.
Our manufacturing processes exemplify cutting-edge efficiency and contemporary innovation, featuring state-of-the-art multi-air compressor assembly lines. Backed by a proficient team of over 50 employees, we continuously refine our ERP-supported management systems, drastically cutting down lead times and guaranteeing the prompt delivery of top-notch products.
Upholding the highest quality benchmarks, our factory is proudly ISO9001 certified, reflecting our steadfast dedication to superior quality management. We enforce rigorous quality control protocols, ensuring each unit undergoes detailed material inspections, comprehensive production evaluations, and exhaustive pre-dispatch tests before it departs our facility.
We boast an unrivaled customer service philosophy. Our pre-sales team offers expert advice to assist you in selecting the perfect air equipment, with extensive customization options for both appearance and configuration available. We specialize in crafting bespoke OEM products tailored to meet specific dealer specifications. Our after-sales team, comprised of seasoned professionals, ensures rapid and efficient resolution of all customer queries and requirements.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfast in providing high-performance, trustworthy products that nurture long-lasting customer relationships. Our efficient delivery schedules, exceptional machines, and competitive pricing ensure you receive unparalleled compressed air solutions every time.
Conveniently located in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transportation from Xinzheng International Airport to our facility, a short 30-kilometer trip that takes roughly an hour. We warmly invite you to visit us!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an expert manufacturer specializing in screw air compressors, boasting over a decade of professional expertise.
Q2. How do you control quality?
A: 1. Diligent inspection of raw materials.
2. Strict oversight of installation processes.
3. Each unit undergoes no less than 5 hours of continuous testing prior to dispatch.
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 of your location (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, or air dryers.
Provide us with this information, and we will customize a solution for you!
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 provides compressors in voltages of 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, 440V/60Hz/3P, and can tailor to your specific requirements.
Q6. How long is the delivery time?
A: With unwavering commitment to excellence, we proudly offer an astonishingly quick delivery timeline of merely 15 working days for products with standard voltage specifications, post order confirmation. Should your requirements include unique, non-standard voltage specifications, our highly skilled sales team is poised to craft tailored delivery schedules that harmonize seamlessly with your specific demands.
Q7. What's the payment term?
A: We have crafted our payment terms to facilitate a seamless and efficient transaction process. Begin with a 30% T/T deposit, followed by a 40% T/T payment before shipment, culminating in a final 30% T/T upon receipt of the B/L copy. We accommodate your convenience by accepting payments in both USD and RMB.
Q8. How about your warranty?
A: Indulge in complete reassurance with our comprehensive warranty program. Enjoy a one-year warranty for the entire machine, along with an enhanced two-year warranty dedicated to the screw air compressor, covering all non-consumable parts to guarantee your peace of mind.
Q9. What about the maintenance?
A: To ensure sustained peak performance and longevity, we recommend an initial maintenance inspection after the first 500 operating hours. Thereafter, conduct regular maintenance every 2000-3000 hours, tailored to the specific working conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are intricately designed to maintain top-tier performance even under high-temperature conditions. They excel within a temperature range of -20° to 45° (-4ºF to 113ºF), assuring steadfast reliability.
Q11. Do you offer OEM service?
A: Indeed, we take pride in offering a broad spectrum of OEM and ODM services. Our visionary design team is dedicated to delivering cutting-edge and versatile solutions, meticulously crafted to align precisely with your distinctive specifications.
Q12. How long could your air compressor be used?
A: Engineered for remarkable durability, our air compressors promise an impressive lifespan surpassing 10 years. This ensures enduring reliability and tranquility for your business operations.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we assure the ready availability of vital spare parts for all our equipment, facilitating efficient maintenance and prompt repairs to ensure your operations remain uninterrupted.
Q14. How about your after-sales service?
A: Our all-encompassing after-sales service is meticulously crafted to cater to your every need. We provide detailed online guidance for installation and commissioning, and further elevate convenience by arranging for on-site training and installation support by our skilled engineers, ensuring a seamless operational start.
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