Experience the ultimate in industrial performance with the Large Power Oil-Lubricated Screw Compressor, proudly presented by China's leading powerhouse, Sanzhi (Henan) Compressor Co., Ltd. Revel in the benefits of factory-direct pricing for this breakthrough Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, masterfully crafted to deliver extraordinary energy savings and heightened efficiency. Equipped with premium High-Quality Centrifugal Fans, this stationary marvel redefines reliability and performance, meeting the demands of the most challenging industrial applications. Transform your operations with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, designed for rigorous industrial use with unmatched durability and consistency. Discover the exceptional efficiency, unwavering reliability, and cost-effectiveness of Sanzhi's advanced compressor technology, designed to elevate your industrial processes to unprecedented levels of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an optimal air compression environment, the energy needed for single-stage pressure transfer ideally equals that of multi-stage compression combined. However, in practical applications, factors such as coupling transmission inefficiencies, friction from bearings, and the cooling impact of liquid viscosity increase energy needs. To boost efficiency, it is crucial to reduce the compression ratio at each stage, ensuring that the total energy required for multi-stage compression remains less than that of a single-stage operation.
The two-stage screw air compressor stands as a pinnacle of engineering design, boasting a sophisticated dual rotary screw configuration that includes both an active and a passive screw. The active screw is externally driven to propel the passive screw, initiating with a low-pressure screw assembly in the first stage, and advancing to a high-pressure screw assembly in the second stage. Each screw is enveloped in a sealing air film, which aids in the compression of gases through rhythmic cycles of suction, pressurization, and exhaust during rotation.
First Stage Compression: During this primary phase, the low-pressure screw group initiates the process of gas compression. Gas is drawn into the screw compression chamber through the suction valve. The swift rotation of the screw rotor intensifies the gas compression and skillfully channels it to the second stage.
Second Stage Compression: In this critical phase, gas is admitted into a more constricted screw chamber, where it undergoes compression at elevated temperatures and pressures. The exhaust valve subsequently opens, freeing the high-pressure gas from the system with precision.
The procedure begins with ambient air being pulled into the initial stage via an air filter, where it blends with a little lubricating oil within the compression chamber. The gas is initially compressed to an interstage pressure, then cooled in the cooling channel by interacting with oil mist, significantly reducing its temperature. The cooled gas is channeled to the second-stage rotor, where it is further compressed to reach the final exhaust pressure. The cycle culminates as the compressor releases high-pressure gas through the exhaust valve with 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. |
Discover the unrivaled power and efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This cutting-edge system, with its high-speed rotating impeller, precisely manipulates air flows to provide exceptional axial entry and swift cooling. It surpasses traditional air-cooled systems, offering continuous operational support and dramatically extending service longevity.
1) High Efficiency of PM Motor:Our pioneering permanent magnet motor showcases an expanded constant torque and weak magnetic range, delivering 20-30% superior efficiency compared to conventional motors. It sustains outstanding performance beyond the rated frequency.
2) Maintenance-Free Motor:Ingeniously designed without internal bearings, our advanced permanent magnet motor eliminates costly maintenance and replacement needs associated with standard motor bearings.
3) Integrated Frequency Converter:Boasting China's top-tier frequency system, our compressor exhibits a broad and precise speed regulation range, adeptly adapting to real-time gas demands, offering remarkable energy-saving benefits.
4) Zero Transmission Loss:The integrated shaft structure directly links the permanent magnet motor to the compressor, negating the need for couplings and transmission parts, ensuring an impeccable 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This feature significantly mitigates the impact on power grid equipment, effectively safeguarding electrical systems against potential harm.
6) Reduced Energy Consumption:Our frequency conversion spans from 25% to 100%, outstripping the typical 50% to 100% range, resulting in over 30% energy savings versus fixed-speed compressors and around 5% more than standard variable frequency models. Larger system gas consumption fluctuations further amplify these savings.
7) Unique Two-Stage Compression Air End:Our uniquely crafted air end seamlessly integrates first and second-stage compression rotors within a solitary case, each directly driven by gears, ensuring optimal linear speed and enhancing compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our advanced internal spray curtain cooling technique offers superior cooling by significantly lowering the compressed air's temperature. It achieves near-isothermal compression, reduces interstage pressure loss, lowers compression ratios, and boosts overall efficiency.
9) Minimized Internal Leakage:By effectively reducing the compression ratio for each stage, our two-stage compression method minimizes internal leakage from high to low-pressure ends, greatly boosting volume efficiency.
10) Noise Reduction:The two-stage compression system significantly lowers the compression ratio, resulting in remarkably reduced noise levels, especially during unloading cycles.
11) Easy Maintenance and Service:With a two-stage compressor unit, the similarities in systems and structures to single-stage compression simplify user maintenance and servicing, aside from the screw air end.
12) Door panels are removable:The casing, made from noise-treated metal, features panels with high-density sound-absorbing materials, ensuring global noise standards compliance. The door panels are designed to open and disassemble, offering 270-degree access for maintenance personnel, enhancing ease of servicing.
1. Unmatched Price Competitiveness
Experience unparalleled price competitiveness with our direct ex-factory pricing model. Elevate your market presence with substantial cost savings while maintaining the highest quality standards. Empower your business to lead and conquer with newfound confidence and formidable pricing advantages.
2. Seamless Direct Transactions
Enjoy seamless direct transactions with our factory-to-customer approach. By eliminating intermediaries, we ensure budget-friendly solutions that enhance your purchasing power. Experience affordability without compromise on superior quality, all delivered directly from our factory.
3. Exceptional OEM & ODM Services
Benefit from our exceptional OEM and ODM services, backed by cutting-edge production and management prowess. We tailor each project to meet your precise requirements, collaborating closely with you to realize your vision. Trust in our precision and excellence to deliver remarkable results.
4. Tailored Customization
Explore limitless possibilities with our tailored customization services. We welcome non-standard, export, and custom orders for voltage, power, pressure, and beyond. Partner with us to craft solutions that perfectly align with your unique specifications, ensuring a precise fit for your needs.
5. Acceptance of Small Orders
Initiate your exploration of SANZHI's superior quality by placing a small trial order. Witness firsthand why clients consistently choose us for unparalleled performance and reliability. Experience the difference with our exceptional product offerings.
6. Swift and Reliable Delivery
Experience the advantage of our swift and reliable delivery services, paired with premium product quality. We guarantee timely arrivals, ensuring that your operations remain seamlessly functional, keeping you ahead in the competitive market landscape.
7. Comprehensive Authorization
Empower your sales strategy with our comprehensive authorization for valued distributors. Market SANZHI brand products with complete confidence, leveraging our brand's esteemed reputation to enhance your sales performance and credibility in 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 relentless dedication, our diverse portfolio includes standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, two-stage compression units, laser cutting-specific compressors, and versatile mobile screw compressors. Available in single and double-tank variants, our offerings come in both electric and diesel versions, complemented by our innovative screw vacuum pumps.
Our production processes epitomize efficiency and modernity, showcasing state-of-the-art multi-air compressor assembly lines. Supported by a skilled team of over 50 employees, we continually enhance our ERP-driven management systems, significantly reducing lead times and ensuring the timely delivery of premium quality products.
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 before it leaves our facility.
Our customer service ethos is unmatched. Our pre-sales team provides expert guidance to help you select the ideal air equipment, with extensive customization options available for appearance and configuration. We specialize in creating bespoke OEM products tailored to specific dealer requirements. Our after-sales team, composed of experienced professionals, guarantees 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 ensure you receive exceptional compressed air solutions every time.
Strategically located in Xinzheng City, Henan Province, China, our factory offers easy accessibility. We provide complimentary transportation from Xinzheng International Airport to our premises, a brief 30-kilometer journey that takes approximately one hour. We warmly welcome you to visit us!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a specialized manufacturer focusing on screw air compressors, with over a decade of professional experience.
Q2. How do you control quality?
A: 1. Strict inspection of raw materials.
2. Rigorous control of installation procedures.
3. Each machine undergoes a minimum of 5 hours of continuous testing before dispatch.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/Min).
2. The necessary 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 these details, and we will tailor 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 offers compressors in voltages of 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, 440V/60Hz/3P, and can customize according to your 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 designed to provide peace of mind, offering a one-year warranty for the entire machine. Additionally, we provide an extended two-year warranty for the screw air compressor, ensuring comprehensive coverage for all non-consumable components.
Q9. What about the maintenance?
A: We advise an initial maintenance check-up after the first 500 operating hours. Subsequently, routine maintenance should be conducted every 2000-3000 hours, depending on the specific working conditions, to maintain optimal performance and longevity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines have been meticulously engineered to uphold peak performance even in high-temperature environments. They operate efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring reliable functionality.
Q11. Do you offer OEM service?
A: Yes, we are proud to offer an expansive range of OEM and ODM services. Our dedicated design team is committed to delivering innovative and adaptable solutions precisely tailored to meet your specifications.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered to deliver exceptional durability, boasting an impressive lifespan exceeding 10 years, ensuring long-term reliability and peace of mind for your operations.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we guarantee the availability of essential spare parts for all our machinery, ensuring efficient maintenance and timely repairs to keep your operations running smoothly.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service is 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 start.
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