Discover the epitome of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, a premier innovation from China's renowned leader, Sanzhi (Henan) Compressor Co., Ltd. Take advantage of direct-from-factory pricing on this state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Meticulously designed, it ensures outstanding energy efficiency and delivers exceptional savings. Equipped with premium High-Quality Centrifugal Fans, this stationary dynamo sets a new standard for reliability and high performance, easily tackling the most rigorous industrial demands. Transform your operations with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, engineered to withstand the rigors of intense industrial use, offering unmatched durability and consistent performance. Experience the extraordinary efficiency, unwavering reliability, and cost-effectiveness of Sanzhi's groundbreaking compressor technology, designed to propel your industrial operations to unprecedented levels of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression environment, the energy needed for single-stage pressure transfer is theoretically equal to that required for multi-stage compression combined. However, real-world conditions often introduce complexities such as coupling transmission losses, friction from bearings, and increased liquid viscosity, which in turn elevate the energy required. To maximize efficiency, it's essential to reduce the compression ratio at each stage, ensuring the total energy required for multi-stage compression remains less than that of single-stage processes.
The two-stage screw air compressor represents the pinnacle of contemporary engineering, boasting an elegant dual rotary screw mechanism. This design incorporates both an active and a passive screw, where the active screw, driven externally, energizes the passive screw. The process begins with a low-pressure screw assembly, progressing to a high-pressure screw assembly. Encased in a sealing air film, each screw facilitates gas compression through synchronized cycles of suction, pressurization, and exhaust during rotation.
First Stage Compression: This vital initial phase involves the low-pressure screw ensemble commencing the gas compression process. Gas is introduced into the screw compression chamber through the suction valve. The swift rotation of the screw rotor intensifies gas compression, efficiently channeling it towards the second stage.
Second Stage Compression: This crucial phase involves gas entering a more compact screw chamber, where it is subjected to compression at significantly elevated temperatures and pressures. The exhaust valve then opens, expertly releasing the high-pressure gas from the system with precise accuracy.
The journey begins as ambient air is drawn into the initial stage via an air filter, subtly combining with lubricating oil within the compression chamber. Initially, the gas is compressed to an interstage pressure and subsequently cooled through interaction with oil mist in the cooling channel, effectively reducing its temperature. The cooled gas is then guided to the second-stage rotor for further compression, achieving the ultimate exhaust pressure. This efficient cycle concludes as the compressor adeptly 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. |
Embark on an exhilarating journey to explore the unmatched power and unparalleled efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This cutting-edge system, with its high-speed rotating impeller, expertly orchestrates air flows to ensure exceptional axial entry and rapid cooling. It stands prominently above conventional air-cooled systems, offering steadfast operational support and dramatically extending service longevity.
1) Premier Efficiency of PM Motor:Our groundbreaking permanent magnet motor showcases an expanded constant torque and weak magnetic range, providing an incredible 20-30% enhancement in efficiency compared to traditional motors. Consistently delivering remarkable performance beyond the rated frequency limit.
2) Maintenance-Free Motor Design:Ingeniously engineered to exclude internal bearings, our state-of-the-art permanent magnet motor removes the financial strains of maintenance and replacement typically associated with conventional motor bearings.
3) Integrated Frequency Converter Excellence:Featuring China's top-tier frequency system, our compressor boasts a broad and precise speed regulation range, skillfully adapting to real-time gas demands and providing exceptional energy-saving benefits.
4) Perfect Zero Transmission Loss:The seamless integrated shaft structure directly links the permanent magnet motor to the compressor, eliminating couplings and transmission parts, ensuring flawless 100% transmission efficiency.
5) Smart Variable Frequency Start and Soft Start:This groundbreaking feature significantly lowers the impact on power grid equipment, effectively protecting electrical systems from potential harm.
6) Superior Energy Consumption Reduction:Our frequency conversion spans an impressive range from 25% to 100%, exceeding the usual 50% to 100%, resulting in over 30% energy savings compared to fixed-speed compressors and approximately 5% more than standard variable frequency models. Greater variance in system gas consumption further amplifies these savings.
7) Unmatched Two-Stage Compression Air End:Our exquisitely crafted air end combines the first and second-stage compression rotors within a single case, each gear-driven to ensure optimal linear speed, thus boosting compression efficiency.
8) Cutting-Edge Internal Spray Curtain Cooling Method:Our advanced internal spray curtain cooling significantly lowers the temperature of compressed air. Achieving near-isothermal compression, it minimizes interstage pressure loss, reduces compression ratios, and enhances overall efficiency.
9) Streamlined Internal Leakage Reduction:Effectively reducing each stage's compression ratio, our two-stage compression technique minimizes internal leakage from high to low-pressure ends, significantly boosting volume efficiency.
10) Remarkable Noise Reduction:The two-stage compression system markedly reduces the compression ratio, leading to significantly diminished noise levels, particularly during unloading cycles.
11) Effortless Maintenance and Service:The two-stage compressor unit, with structural and system parallels to single-stage compression, simplifies user maintenance and servicing, aside from the screw air end.
12) Conveniently Removable Door Panels:The casing, crafted from noise-dampened metal, includes panels lined with high-density sound-absorbing materials, meeting global noise standards. The door panels are designed for effortless opening and disassembly, providing 270-degree access for maintenance personnel, enhancing the ease of servicing.
1. Unmatched Price Competitiveness
Discover the zenith of affordability without compromising on excellence through our groundbreaking direct ex-factory pricing model. Elevate your business stature with significant cost savings while upholding the exceptional quality you expect. Empower your business to soar with unmatched assurance and strategic pricing power.
2. Seamless Direct Transactions
Embrace the streamlined simplicity of direct transactions via our exclusive factory-to-customer framework. By eliminating the middlemen, we offer cost-effective solutions that greatly enhance your purchasing strength. Delight in a unique combination of affordability and uncompromised premium quality, delivered directly from our factory to your doorstep.
3. Exceptional OEM & ODM Services
Unlock unparalleled potential with our exceptional OEM and ODM services, backed by cutting-edge production capabilities and management proficiency. We carefully tailor each project to your exact specifications, collaborating with you to transform your vision into a reality. Rely on our precision and commitment to achieve astounding results.
4. Tailored Customization
Explore limitless possibilities with our bespoke customization services. We welcome non-standard, export, and personalized orders for diverse voltage, power, pressure, and more. Partner with us to create solutions that seamlessly align with your unique specifications, ensuring they fulfill your precise requirements.
5. Acceptance of Small Orders
Embark on a journey with SANZHI's superior quality by beginning with a small trial order. Experience firsthand why clients continually choose us for extraordinary performance and unwavering reliability. Witness the distinction with our outstanding products and make well-informed purchasing choices.
6. Swift and Reliable Delivery
Benefit from our swift and dependable delivery services, paired with exceptional product quality. We guarantee timely deliveries to ensure your operations remain seamless, keeping you competitive and ahead in the ever-evolving market landscape.
7. Comprehensive Authorization
Bolster your sales strategy with our comprehensive authorization program for distinguished distributors. Market SANZHI brand products with unwavering confidence, leveraging our brand's esteemed reputation to elevate your sales performance and industry credibility.
Sanzhi (Henan) Compressor Co., Ltd. stands tall as an emblem of superior craftsmanship in the manufacturing domain, acclaimed for its top-tier screw air compressors and vacuum pumps. With more than ten years of steadfast dedication, our extensive catalog encompasses standard and low-pressure screw air compressors, revolutionary permanent magnet frequency conversion models, advanced two-stage compression units, specialized laser cutting compressors, and versatile mobile screw compressors. Offered in both single and double-tank configurations, our products are available in either electric or diesel versions, further distinguished by our pioneering screw vacuum pumps.
Our production processes exemplify the pinnacle of efficiency and modernity, highlighted by cutting-edge multi-air compressor assembly lines. A proficient team of over 50 committed employees continually refines ERP-integrated management systems, drastically reducing lead times and guaranteeing the prompt delivery of products that conform to the highest standards of quality and excellence.
Adhering to exceptional standards, our factory is proudly ISO9001 certified, symbolizing our steadfast dedication to quality management. We stringently implement comprehensive quality control protocols, ensuring each machine undergoes meticulous material inspections, systematic production assessments, and exhaustive pre-delivery evaluations, assuring unmatched reliability and performance.
Our customer service philosophy is unrivaled. Our pre-sales team provides expert advice to assist you in choosing the perfect air equipment, offering a wide range of customization options for both appearance and configuration. We specialize in crafting tailor-made OEM products designed to meet distinct dealer specifications. Our after-sales team, comprising seasoned professionals, ensures quick and efficient responses to all customer inquiries and requirements.
At Sanzhi (Henan) Compressor Co., Ltd., we are devoted to delivering high-performance, dependable products that nurture lasting customer relationships. Our efficient delivery schedules, outstanding machines, and competitive pricing ensure you receive remarkable compressed air solutions consistently.
Strategically positioned in Xinzheng City, Henan Province, China, our factory boasts excellent accessibility. We provide complimentary transportation from Xinzheng International Airport to our facility, a concise 30-kilometer trip taking around one hour. We invite you warmly to visit us and experience our hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a dedicated manufacturer specializing exclusively in screw air compressors, supported by over a decade of professional experience and knowledge.
Q2. How do you control quality?
A: 1. We carry out stringent inspections of all raw materials to ensure quality.
2. We maintain rigorous control over installation procedures to uphold standards.
3. Every machine is subjected to a minimum of 5 hours of uninterrupted testing before dispatch to guarantee optimum performance.
Q3. What information must I provide to get the suitable machine?
1. The desired air delivery capacity (Unit: CFM or m³/Min) is essential for customization.
2. The required working pressure (Unit: PSI, Bar, or Mpa) is crucial for specific needs.
3. The voltage and frequency specific to your location (V/Hz) are necessary for compatibility.
4. Any additional accessories needed, such as an air tank, filters, or air dryers, should be specified.
Provide us with these details, and we will meticulously customize a solution to fulfill your precise requirements!
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 (Henan) Compressor Co., Ltd. proudly offers a versatile selection of compressors catering to a spectrum of voltages such as 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Furthermore, we are pleased to offer customized solutions to precisely match your specific voltage requirements, ensuring tailor-made performance.
Q6. How long is the delivery time?
A: With our standard voltage specifications, you can expect an impressively swift delivery timeframe of merely 15 working days post order confirmation. For customized creations with non-standard voltage specifications, our expert sales team is dedicated to crafting precise delivery timelines that align seamlessly with your bespoke needs.
Q7. What's the payment term?
A: To facilitate a seamless transaction, our payment terms are strategically designed as follows: an initial 30% T/T deposit, followed by 40% T/T payment before shipment, and the remaining 30% T/T upon receipt of the B/L copy. We offer the flexibility of payments in both USD and RMB to cater to your preferences.
Q8. How about your warranty?
A: Our thoughtfully designed warranty program provides complete assurance with a robust one-year warranty covering the entire machine. Moreover, we offer an extensive two-year warranty specifically for the screw air compressor, safeguarding all non-consumable components.
Q9. What about the maintenance?
A: To maintain peak performance and longevity, an initial maintenance check-up is advised after the first 500 operating hours. Subsequently, routine maintenance should be scheduled every 2000-3000 hours, contingent on specific working conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are expertly engineered to deliver exceptional performance even in high-temperature environments. They operate efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring reliable functionality and consistent results.
Q11. Do you offer OEM service?
A: Indeed, we are proud to extend a comprehensive range of OEM and ODM services. Our dedicated design team is adept at providing innovative and adaptable solutions tailored to precisely match your unique specifications and business objectives.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for unmatched durability, boasting an exceptional lifespan that surpasses 10 years. This guarantees long-term reliability and peace of mind for your operations, fostering continued success.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we ensure the availability of essential spare parts for all our machinery. This guarantees efficient maintenance and timely repairs, minimizing any downtime and keeping your operations running smoothly.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service is meticulously crafted to support your requirements, offering detailed online guidance for installation and commissioning. To further enhance convenience, we arrange on-site training and installation support through our engineers, ensuring a seamless and efficient operation from the outset.
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