Unlock the pinnacle of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, the flagship offering from China's prestigious leader, Sanzhi (Henan) Compressor Co., Ltd. Experience the unparalleled benefits of direct-from-factory pricing on this state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Meticulously engineered, it ensures extraordinary energy efficiency, leading to significant cost savings for your enterprise. Equipped with premium High-Quality Centrifugal Fans, this stationary marvel redefines reliability and high performance, effortlessly meeting the demands of the most challenging industrial scenarios. Transform your operations with Sanzhi's robust 185kw High Volume Two-Stage Screw Air Compressor, built for the most rigorous industrial applications, offering unmatched durability and unwavering performance. Delve into the exceptional efficiency, unwavering reliability, and cost-effectiveness of Sanzhi's avant-garde compressor technology, designed to elevate your industrial operations to unprecedented levels of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of ideal air compression scenarios, the energy requirements for transitioning pressure in a single-stage setup theoretically align with those in multi-stage compression. However, real-world applications often face obstacles such as transmission losses from couplings, friction from bearings, and the viscosity of liquids, all of which drive up energy usage. To boost efficiency, it's essential to minimize the compression ratio in each stage, ensuring that the total energy needed for multi-stage compression remains less than what single-stage operations would demand.
The two-stage screw air compressor stands as a testament to advanced engineering with its exceptional dual rotary screw configuration. This includes an active screw and a passive screw, where the active screw is externally powered and drives the passive screw. The process begins with a low-pressure screw setup in the first stage and peaks with a high-pressure screw assembly in the following stage. Each screw is enveloped in a sealing air film, which facilitates the gas compression through synchronized cycles of suction, pressurization, and exhaust as it rotates.
First Stage Compression: This initial phase of compression begins with the low-pressure screw setup, marking the start of the gas compression process. Gas is drawn into the screw compression chamber via the suction valve, where the swift rotation of the screw rotor significantly boosts the compression of gas, skillfully steering it towards the second stage.
Second Stage Compression: In this critical key phase, gas enters a more compact screw chamber, where it undergoes compression at elevated temperatures and pressures. Subsequently, the exhaust valve opens, precisely and meticulously releasing the high-pressure gas from the system with unparalleled accuracy.
The process initiates as ambient air is drawn into the first stage through an air filter, where it subtly combines with lubricating oil within the compression chamber. Initially, the gas is compressed to an intermediate pressure. It is then cooled as it interacts with oil mist in the cooling channel, significantly reducing its temperature. The cooled gas is then channeled to the second-stage rotor for further compression, achieving the ultimate exhaust pressure. This seamless and efficient cycle concludes with the compressor expertly 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 an exhilarating journey to discover the unparalleled power and exceptional efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! Through its high-speed rotating impeller, this cutting-edge system masterfully manipulates airflows, ensuring outstanding axial entry and rapid cooling. It soars above traditional air-cooled systems, offering continuous operational support and dramatically extending service longevity.
1) High Efficiency of PM Motor:Our groundbreaking permanent magnet motor features an expanded constant torque and weak magnetic range, delivering an impressive 20-30% boost in efficiency compared to conventional motors. It consistently provides stellar performance well beyond the rated frequency.
2) Maintenance-Free Motor:Ingeniously designed without internal bearings, our advanced permanent magnet motor eliminates the hefty financial burdens of maintenance and replacement that come with standard motor bearings.
3) Integrated Frequency Converter:Highlighted by China's leading frequency system, our compressor boasts a broad and precise speed regulation range, expertly adapting to real-time gas demands for extraordinary energy-saving benefits.
4) Zero Transmission Loss:With a seamless integrated shaft structure that directly links the permanent magnet motor to the compressor, we eliminate the need for couplings and transmission parts, securing a flawless 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This pioneering feature vastly reduces the impact on power grid equipment, effectively shielding electrical systems from potential damage.
6) Reduced Energy Consumption:Our frequency conversion spans from 25% to 100%, outperforming the typical 50% to 100%, resulting in over 30% energy savings compared to fixed-speed compressors and about 5% more than standard variable frequency models. A larger variance in system gas consumption further enhances these savings.
7) Unique Two-Stage Compression Air End:Our exquisitely crafted air end houses the first and second-stage compression rotors within a singular case, each driven by gear to ensure optimal linear speed, thus boosting compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our state-of-the-art internal spray curtain cooling significantly 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, resulting in 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:Constructed from noise-dampened metal, the casing includes panels lined with high-density sound-absorbing materials, meeting global noise standards. The door panels are designed for effortless opening and disassembly, offering a full 270-degree access for maintenance personnel, greatly enhancing the ease of servicing.
1. Unmatched Price Competitiveness
Experience the zenith of price competitiveness with our exclusive, factory-direct pricing model. Elevate your market presence with substantial cost savings, all while preserving the high-quality standards you expect. Propel your enterprise to unprecedented heights with unmatched confidence and commanding pricing power.
2. Seamless Direct Transactions
Delight in the simplicity and clarity of direct transactions via our factory-to-customer framework. By eliminating middlemen, we offer cost-effective solutions that significantly enhance your purchasing influence. Enjoy the perfect blend of affordability and superior quality, delivered directly from our factory to your doorstep.
3. Exceptional OEM & ODM Services
Tap into the potential of our remarkable OEM and ODM services, backed by top-tier production and management expertise. We diligently tailor each project to your specific requirements, collaborating closely with you to turn your vision into reality. Trust in our precision and commitment to achieve outstanding results.
4. Tailored Customization
Explore the limitless possibilities with our custom-tailored services. We enthusiastically embrace non-standard, export, and personalized orders for diverse voltage, power, pressure, and more. Partner with us to craft solutions that perfectly align with your unique specifications, ensuring they fulfill your precise requirements.
5. Acceptance of Small Orders
Begin your journey with SANZHI's exceptional quality through a small trial order. Experience firsthand why clients consistently choose us for unparalleled performance and reliability. Discover the distinction of our superior product offerings and make well-informed decisions with confidence.
6. Swift and Reliable Delivery
Benefit from our fast and reliable delivery services, paired with exceptional product quality. We ensure prompt deliveries so your operations remain seamless, keeping you competitive and leading the charge in the market.
7. Comprehensive Authorization
Fortify your sales strategy with our comprehensive authorization for distinguished distributors. Market SANZHI brand products with utmost assurance, leveraging our brand's esteemed reputation to amplify your sales performance and industry credibility.
Sanzhi (Henan) Compressor Co., Ltd. proudly stands as a luminary in the realm of manufacturing, celebrated for its unparalleled expertise in crafting top-tier screw air compressors and vacuum pumps. With an unwavering dedication spanning over a decade, our extensive portfolio showcases a diverse array of offerings. These include conventional and low-pressure screw air compressors, state-of-the-art permanent magnet frequency conversion models, advanced two-stage compression units, laser cutting compressors engineered for precision, and versatile mobile screw compressors. Available in both single and double-tank configurations, our products are designed to cater to diverse needs, offered in both electric and diesel variants, and further enhanced by our breakthrough screw vacuum pumps.
Our sophisticated production processes are the epitome of modern efficiency, boasting cutting-edge multi-air compressor assembly lines. With a team of over 50 highly skilled and dedicated professionals, we continually refine our ERP-driven management systems. This relentless pursuit of excellence significantly reduces lead times, ensuring that our products are delivered promptly, upholding the highest echelon of quality standards.
Upholding the highest standards of excellence, our factory proudly possesses ISO9001 certification, underscoring our steadfast commitment to superior quality management. We rigorously implement comprehensive quality control measures; each machine is subject to meticulous material inspections, detailed production assessments, and exhaustive pre-delivery checks, guaranteeing unmatched reliability and stellar performance.
Our unparalleled customer service philosophy is second to none. Our pre-sales team provides consummate guidance to assist you in selecting the perfect air equipment, offering a myriad of extensive customization options in appearance and configuration. We excel in crafting bespoke OEM products tailored specifically to fulfill the unique demands of dealers. Our after-sales team, a collective of seasoned professionals, ensures quick and effective responses to all customer inquiries and requirements.
At Sanzhi (Henan) Compressor Co., Ltd., our unwavering dedication lies in delivering high-performance, reliable products that build lasting customer relationships. Our efficient delivery timelines, superior machinery, and competitive pricing ensure that you receive exceptional compressed air solutions, consistently exceeding your expectations.
Strategically located in Xinzheng City, Henan Province, China, our factory enjoys excellent accessibility. We offer complimentary transportation from Xinzheng International Airport to our factory-a brief 30-kilometer journey taking approximately one hour. We warmly welcome you to visit us and enjoy our hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer, exclusively specializing in screw air compressors, backed by over a decade of professional expertise and industry experience.
Q2. How do you control quality?
A: 1. We conduct comprehensive inspections of all raw materials to ensure the highest quality.
2. We exercise stringent control over installation procedures, maintaining precision and accuracy.
3. Each machine undergoes a rigorous minimum of 5 hours of continuous testing before dispatch, ensuring it operates at peak performance levels.
Q3. What information must I provide to get the suitable machine?
1. The desired air delivery capacity (Unit: CFM or m³/Min) to match your operational needs.
2. The required working pressure (Unit: PSI, Bar, or Mpa) for optimal performance.
3. The voltage and frequency specific to your location (V/Hz) to ensure compatibility.
4. Any additional accessories needed, such as an air tank, filters, or air dryers, to enhance functionality.
Provide us with these critical details, and we will meticulously tailor a solution that satisfies your precise requirements!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI-essential for understanding pressure specifications.
1m³/min = 35.32cfm-crucial for determining air flow rates.
1KW = 1.34HP-important for assessing power needs.
Q5. What is the available voltage for air compressors?
A: Sanzhi is proud to offer compressors with a diverse range of voltage options, including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Additionally, we can tailor solutions to meet your precise voltage requirements, ensuring our products perfectly match your operational needs.
Q6. How long is the delivery time?
A: For standard voltage specifications, we are delighted to offer a remarkably swift delivery timeframe of just 15 working days from order confirmation. For custom solutions requiring non-standard voltages, our dedicated sales team is poised to provide specific, tailored delivery timelines that align seamlessly with your unique needs.
Q7. What's the payment term?
A: To guarantee a seamless transaction experience, our payment terms are outlined as follows: an initial deposit of 30% T/T, followed by a further 40% T/T payment before shipment, with the final 30% T/T due upon receipt of the B/L copy. We accommodate payments in both USD and RMB, offering flexibility to suit your financial arrangements.
Q8. How about your warranty?
A: Our meticulously crafted warranty program is designed to provide peace of mind, featuring a comprehensive one-year warranty for the entire machine. Furthermore, we offer a two-year warranty for the screw air compressor, ensuring robust coverage for all non-consumable components.
Q9. What about the maintenance?
A: To maintain optimal performance and extend longevity, we advise an initial maintenance check-up after the first 500 hours of operation. Subsequent routine maintenance should be conducted every 2000-3000 hours, depending on specific working conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are expertly engineered to perform optimally even in high-temperature environments. They operate efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring consistent functionality and reliability.
Q11. Do you offer OEM service?
A: Yes, we proudly offer a broad spectrum of OEM and ODM services. Our dedicated design team is committed to providing innovative and adaptable solutions, precisely customized to fulfill your unique specifications and business objectives.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered to provide exceptional durability, with an impressive lifespan that spans over a decade. This ensures long-term reliability and peace of mind for your operations, facilitating enduring success.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we ensure the availability of essential spare parts for all our machines. This guarantees efficient maintenance and timely repairs, keeping your operations running smoothly and minimizing downtime.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service is meticulously crafted to support your needs, offering detailed online guidance for installation and commissioning. To enhance convenience, we can arrange for engineers to provide on-site training and installation support, ensuring seamless and efficient operations from the start.
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