Discover the epitome of industrial mastery with the Large Power Oil-Lubricated Screw Compressor, an exemplar of excellence from the renowned Sanzhi (Henan) Compressor Co., Ltd. Experience the unparalleled benefits of factory-direct pricing on this state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Meticulously designed, it guarantees exceptional energy efficiency and considerable cost savings. Equipped with premium High-Quality Centrifugal Fans, this stationary giant redefines reliability and performance, effortlessly meeting the most rigorous industrial demands. Transform your operational capabilities with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, engineered for the toughest industrial tasks, offering unmatched durability and consistent performance. Engage with the extraordinary efficiency, unwavering reliability, and economic advantage of Sanzhi's innovative compressor technology, designed to propel your industrial endeavors to unprecedented levels of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the ideal air compression landscape, the energy required for a single-stage pressure transfer ideally matches the efficiency of combined multi-stage compression. However, in real-world applications, challenges such as coupling transmission losses, friction from bearings, and increased liquid viscosity can significantly escalate energy requirements. To optimize efficiency, it's crucial to minimize the compression ratio at each stage, ensuring that the overall energy needed for multi-stage compression remains less than that of single-stage operations.
The two-stage screw air compressor stands as a beacon of advanced engineering prowess, showcasing an exquisite dual rotary screw design that integrates both an active and passive screw mechanism. The active screw, which is externally driven, propels the passive screw into action. This process initiates with a low-pressure screw assembly in the first stage and culminates in a high-pressure screw assembly in the second stage. Each screw is enveloped in a sealing air film, enabling smooth gas compression through coordinated cycles of suction, pressurization, and exhaust as the screws rotate.
First Stage Compression: In this critical foundational phase, the low-pressure screw ensemble embarks on the journey 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, skillfully directing it towards the second stage.
Second Stage Compression: During this pivotal phase, gas progresses into a more compact screw chamber, where it undergoes compression at significantly elevated temperatures and pressures. The exhaust valve then opens, precisely releasing the high-pressure gas from the system with exceptional accuracy.
The process begins as ambient air is drawn into the initial stage through an air filter, harmoniously blending with lubricating oil within the compression chamber. Initially, the gas is compressed to an interstage pressure, followed by cooling through interaction with oil mist in the cooling channel, significantly lowering its temperature. The cooled gas is subsequently directed to the second-stage rotor for further compression, achieving the final exhaust pressure. This seamless cycle concludes with the compressor efficiently discharging 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! With cutting-edge design, this remarkable system sets a new standard in air compressor technology. By harnessing the power of a high-speed rotating impeller, it expertly manipulates airflows, delivering exceptional axial entry and rapid cooling like never before. It towers above traditional air-cooled systems, providing uninterrupted operational support and dramatically extending service longevity, ensuring you stay ahead in any industrial endeavor.
1) High Efficiency of PM Motor:Our trailblazing permanent magnet motor revolutionizes efficiency with an expanded range of constant torque and weak magnetic capabilities, achieving a staggering 20-30% boost in efficiency over conventional motors. Delivering exemplary performance far beyond the rated frequency, it truly sets a new benchmark for industrial excellence.
2) Maintenance-Free Motor:Ingeniously engineered without internal bearings, our advanced permanent magnet motor abolishes the financial burdens associated with maintenance and replacement of standard motor bearings, offering you peace of mind and cost savings.
3) Integrated Frequency Converter:Featuring the premier frequency system from China, our compressor showcases an expansive and precise speed regulation range. It adeptly tunes into real-time gas demands, delivering unparalleled energy-saving benefits while optimizing operational efficiency.
4) Zero Transmission Loss:The flawless integrated shaft structure directly connects the permanent magnet motor to the compressor, eliminating couplings and transmission parts. This ensures an impeccable 100% transmission efficiency, empowering your operations with unrivaled performance.
5) Variable Frequency Start and Soft Start:This groundbreaking feature significantly mitigates the impact on power grid equipment, offering robust protection to electrical systems and safeguarding them from potential damages.
6) Reduced Energy Consumption:Our innovative frequency conversion ranges from 25% to 100%, outshining the standard 50% to 100%, leading to over 30% energy savings compared to fixed-speed compressors. It also achieves approximately 5% more savings than standard variable frequency models, with larger system gas consumption variances amplifying these savings further.
7) Unique Two-Stage Compression Air End:Our meticulously designed air end integrates the first and second-stage compression rotors within a single housing. Each rotor gear-driven for optimal linear speed, this design maximizes compression efficiency and elevates performance.
8) Innovative Internal Spray Curtain Cooling Method:Our cutting-edge internal spray curtain cooling significantly reduces compressed air temperatures. Achieving near-isothermal compression, it minimizes interstage pressure loss, reduces compression ratios, and enhances overall system efficiency.
9) Minimized Internal Leakage:By effectively minimizing each stage's compression ratio, our two-stage compression technique curtails internal leakage from high to low-pressure ends, significantly boosting volume efficiency.
10) Noise Reduction:With the two-stage compression system, the compression ratio is significantly minimized, resulting in dramatically reduced noise levels, particularly during unloading cycles, ensuring a quieter working environment.
11) Easy Maintenance and Service:Thanks to the two-stage compressor unit's structural and system resemblances to single-stage compression, user maintenance and servicing are simplified, allowing for effortless handling aside from the screw air end.
12) Door panels are removable:The casing, crafted from noise-dampened metal, features panels lined with high-density sound-absorbing materials, meeting global noise standards. These door panels are designed for seamless opening and disassembly, offering 270-degree access for maintenance personnel, enhancing the ease of servicing.
1. Unmatched Price Competitiveness
Experience the ultimate in price competitiveness with our exclusive direct ex-factory pricing model. Enhance your market legacy with substantial cost savings, while upholding the high-quality standards you expect. Elevate your enterprise to new heights with unparalleled confidence and strategic pricing advantage.
2. Seamless Direct Transactions
Indulge in the simplicity of direct transactions through our factory-to-customer approach. By eliminating intermediaries, we offer cost-effective solutions that significantly enhance your purchasing power. Enjoy the perfect fusion of affordability and uncompromised superior quality, delivered directly from our factory.
3. Exceptional OEM & ODM Services
Unlock the potential with our extraordinary OEM and ODM services, supported by cutting-edge production and management expertise. We meticulously tailor each project to meet your specific requirements, collaborating with you to bring your vision to life. Trust in our precision and dedication to achieve exceptional results.
4. Tailored Customization
Discover limitless possibilities with our bespoke customization services. We welcome non-standard, export, and personalized orders for varying voltage, power, pressure, and more. Partner with us to create solutions that perfectly align with your unique specifications, ensuring they meet your exact needs.
5. Acceptance of Small Orders
Embark on your journey with SANZHI's top-tier quality by initiating a small trial order. Witness firsthand why clients repeatedly choose us for remarkable performance and reliability. Experience the difference with our exceptional product offerings and make informed decisions.
6. Swift and Reliable Delivery
Benefit from our swift and dependable delivery services, complemented by outstanding product quality. We ensure timely deliveries to keep your operations running smoothly, maintaining your competitiveness and leading edge in the market.
7. Comprehensive Authorization
Enhance your sales strategy with our comprehensive authorization for esteemed distributors. Market SANZHI brand products with absolute confidence, leveraging our brand's esteemed reputation to boost your sales performance and industry credibility.
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.
Experience unmatched customer service with our expert pre-sales team ready to guide you in selecting the ideal air equipment, offering extensive customization options for both appearance and configuration. We specialize in creating bespoke OEM products tailored to meet specific dealer needs. Our after-sales team of seasoned professionals ensures swift, effective responses to all customer inquiries and requirements, providing a seamless experience.
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: At Sanzhi, we're proud to present a versatile selection of compressors catering to a variety of voltage specifications, such as 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. To further tailor our offerings, we provide customization to meet your specific requirements, ensuring that our solutions are as unique as your needs.
Q6. How long is the delivery time?
A: For those opting for standard voltage specifications, we're delighted to offer a remarkably swift delivery time of a mere 15 working days post order confirmation. For customized solutions that require non-standard voltage specifications, our adept sales team stands ready to deliver exact, tailored delivery schedules that cater to your unique requirements.
Q7. What's the payment term?
A: To facilitate a seamless and hassle-free transaction, our payment terms are thoughtfully structured as follows: an initial 30% T/T deposit is required, succeeded by a 40% T/T payment prior to shipment, and a culminating 30% T/T payment upon receipt of the B/L copy. We gladly offer the flexibility of making payments in both USD and RMB to accommodate 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. Additionally, we are pleased to provide an extensive two-year warranty for the screw air compressor, ensuring thorough coverage for all non-consumable components, thus guaranteeing reassurance and confidence in our products.
Q9. What about the maintenance?
A: We advocate for an initial maintenance check-up after the first 500 operating hours. Subsequently, routine maintenance should be undertaken every 2000-3000 hours, depending on the specific working conditions. This proactive approach is key to sustaining optimal performance and prolonging the lifespan of your equipment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to maintain peak performance even under high-temperature conditions. They effectively operate within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring steadfast reliability and consistent results, regardless of the environmental challenges.
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, ensuring that our creations seamlessly align with your vision.
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 and enduring excellence in performance.
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, thus preserving productivity and efficiency.
Q14. How about your after-sales service?
A: Our extensive after-sales service is meticulously crafted to cater to your needs, providing comprehensive online guidance for installation and commissioning. To further streamline your experience, we can arrange for engineers to deliver on-site training and installation support, ensuring a seamless and efficient operation from the very onset.
){kind=link}