Unleash the ultimate power of your industrial capabilities with Sanzhi (Henan) Compressor Co., Ltd., proudly hailed as China's premier supplier. Discover the immense advantages of factory-direct pricing with the Large Power Oil-Lubricated Screw Compressor - a revolution in energy-saving performance. This state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor is meticulously crafted for unmatched efficiency, setting new standards with superior High-Quality Centrifugal Fans. Designed to excel in the most demanding industrial applications, this stationary powerhouse offers unprecedented reliability and performance. Elevate your operational prowess with Sanzhi's formidable 185kw High Volume Two-Stage Screw Air Compressor, celebrated for its exceptional durability and steadfast consistency. This cutting-edge compressor technology is your gateway to an era of unmatched efficiency, reliability, and cost-saving. Propel your industrial processes to new heights of performance and sustainability with Sanzhi's innovative solutions.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Imagine an ideal realm of air compression where a single-stage operation's energy consumption mirrors the collective energy of multi-stage processes. However, in reality, factors like coupling transmission hiccups, bearing friction, and fluid viscosity's cooling effects inevitably heighten energy requirements. To drive efficiency forward, reducing the compression ratio at each stage is pivotal, ensuring that the total power required for multi-stage compression remains less than that of a single-stage operation.
The two-stage screw air compressor is a marvel of contemporary engineering, boasting a dual rotary screw design encompassing active and passive screws. The active screw, powered by an external source, activates the passive screw. The journey begins with a low-pressure screw set in the first stage and advances to a high-pressure screw set in the second stage. Each screw is ingeniously sealed by a delicate air film, aiding in gas compression through a flawless sequence of suction, pressurization, and release as the screws rotate.
First Stage Compression: This crucial phase marks the commencement of the gas compression journey. Gas is expertly drawn into the screw's compression chamber via the suction valve, where the rotor's rapid spin compresses the gas and efficiently propels it towards the ensuing second stage.
Second Stage Compression: Here at this enhanced stage, gas enters an even more compact screw chamber, undergoing compression at dramatically increased temperatures and pressures. The exhaust valve then skillfully opens, releasing the high-pressure gas from the system with meticulous precision.
The process initiates as ambient air is captivated into the initial stage through a proficient air filter. Here, it blends seamlessly with a modest amount of lubricating oil within the compression chamber. This mixture is compressed to an intermediate pressure, subsequently cooled in a channel where it encounters oil mist, effectively diminishing its temperature. This cooled gas then advances to the second-stage rotor, where it undergoes further compression, achieving the ultimate exhaust pressure. The cycle culminates with the elegant release of 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. |
Dive into the world of cutting-edge efficiency with our High Volume Centrifugal Fan Two-Stage Air Compressor! Featuring a state-of-the-art high-speed rotating impeller, this exceptional system accelerates and decelerates air with unmatched precision, ensuring optimal axial entry and unparalleled cooling. Surpassing traditional air-cooled fans, it supports smooth, continuous operations and significantly extends service life.
1) High Efficiency of PM Motor:Experience unparalleled power with our advanced permanent magnet motor. Enhanced with an expanded constant torque and weak magnetic range, this motor achieves an astounding 20-30% efficiency increase over standard motors, offering consistently superior performance, even beyond rated frequencies.
2) Maintenance-Free Motor:Ingeniously designed without internal bearings, our cutting-edge permanent magnet motor eliminates the costly upkeep and replacement issues commonly associated with traditional motor bearings.
3) Integrated Frequency Converter:Featuring China's leading frequency system, our compressor encompasses an extensive and precise speed regulation range. It adeptly matches real-time gas demands, delivering outstanding energy-saving advantages.
4) Zero Transmission Loss:The integrated shaft structure seamlessly connects the permanent magnet motor directly to the compressor, eliminating couplings and transmission parts, thus ensuring an impeccable 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This state-of-the-art feature considerably alleviates strain on power grid equipment, providing robust protection for electrical systems against potential damage.
6) Reduced Energy Consumption:Our frequency conversion ranges from 25% to 100%, exceeding the standard 50% to 100% range. This allows for over 30% energy savings compared to fixed-speed compressors and about 5% more than standard variable frequency models. Greater variations in gas consumption further boost these energy-saving effects.
7) Unique Two-Stage Compression Air End:Our ingeniously designed air end houses first-stage and second-stage compression rotors within a single casing, each gear-driven. This configuration ensures optimal linear speed and enhances overall compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our pioneering internal spray curtain cooling method delivers superior cooling, significantly lowering the temperature of compressed air. It achieves near-isothermal compression, reduces interstage pressure loss, lowers compression ratios, and enhances overall compression efficiency.
9) Minimized Internal Leakage:By lowering the compression ratio for each stage, our two-stage compression approach minimizes internal leakage between high and low-pressure ends, significantly boosting volume efficiency.
10) Noise Reduction:The innovative two-stage compression system effectively reduces the compression ratio, resulting in a pronounced decrease in noise levels, especially noticeable during unloading.
11) Easy Maintenance and Service:Thanks to a two-stage compressor unit with similarities in systems and structures to single-stage compression, maintenance and user servicing are remarkably straightforward, aside from the screw air end.
12) Door panels are removable:Crafted with noise-treated metal plates, the unit's casing is lined with high-density sound-absorbing material, ensuring compliance with international noise standards. The removable door plate provides a 270-degree access, greatly facilitating maintenance personnel's ability to service and maintain the unit's interior effortlessly.
1. Unmatched Price Competitiveness
Discover unbeatable direct ex-factory pricing that offers you a formidable edge in your market. Our clients enjoy significant cost savings while maintaining superior quality. With SANZHI, you can assertively lead your market, maximizing potential without compromise.
2. Seamless Direct Transactions
Experience the benefits of direct-to-you shipments from our manufacturing hub. We eliminate the middlemen, ensuring you receive cost-effective solutions that uphold our high-quality standards. Enjoy exceptional value and excellence delivered straight to your door.
3. Exceptional OEM & ODM Services
Harness our advanced production capabilities to receive unparalleled OEM and ODM services designed to meet your exact specifications. Partner with SANZHI to realize your vision with precision and unmatched quality, turning your ideas into tangible excellence.
4. Tailored Customization
We warmly welcome requests for non-standard, export, and custom orders covering voltage, power, pressure, and more. Reach out to us to discuss your distinct requirements, and we will engineer a solution finely tuned to your specific needs.
5. Welcoming Small Order Requests
Begin with a small trial order to personally witness the superior quality we offer. Discover why SANZHI is the preferred choice for clients seeking exceptional performance and steadfast reliability.
6. Swift and Reliable Delivery
Capitalize on our premium range and benefit from our fast and reliable delivery services. We are dedicated to ensuring your orders arrive on time, supporting your operational efficiency seamlessly.
7. Comprehensive Authorization Support
We offer complete authorization certificates to our valued distributors, empowering you to market SANZHI brand products with full assurance. Utilize the strength of our brand to elevate your sales and expand your market reach confidently.
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of innovation and quality in the manufacturing world, proudly recognized for its exceptional range of screw air compressors and vacuum pumps. With a solid track record spanning over ten years, Sanzhi showcases a wide array of products, from standard and low-pressure screw air compressors to the latest permanent magnet frequency conversion models. Our sophisticated two-stage compression units, compressors designed explicitly for laser cutting, and versatile mobile screw compressors are tailored to meet a spectrum of needs. Available in both single and double-tank configurations, our compressors offer a choice between electric and diesel power, further enhanced by our pioneering screw vacuum pumps.
Our production processes lead the industry in efficiency and modernization, exemplified by our cutting-edge multi-air compressor assembly lines. Backed by a dedicated team of over 50 skilled professionals, we continually refine our ERP-enhanced management systems. This commitment drastically shortens lead times, ensuring the rapid delivery of superior-quality products.
Our pursuit of excellence is reflected in our manufacturing facility, proudly distinguished with the esteemed ISO9001 certification. This accolade highlights our steadfast commitment to maintaining impeccable quality management standards. We diligently enforce comprehensive quality control measures, ensuring that every apparatus undergoes rigorous material checks, meticulous production evaluations, and thorough pre-dispatch inspections before leaving our premises.
Our customer service philosophy is unparalleled. Our expert pre-sales team provides valuable guidance in selecting the ideal air equipment, offering extensive customization options in both design and configuration. We specialize in crafting bespoke OEM products that meet the unique demands of our dealers. Our after-sales team, composed of seasoned professionals, is dedicated to delivering prompt and efficient responses to all customer queries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are unwavering in our commitment to delivering high-performance, reliable products that nurture lasting customer relationships. With streamlined delivery schedules, superior-quality machinery, and competitive pricing, we guarantee exceptional compressed air solutions with every interaction.
Ideally situated in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transportation from Xinzheng International Airport to our facility, a convenient 30-kilometer journey that takes approximately one hour. We warmly invite you to visit us and experience our dedication first-hand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: We are a specialist manufacturer of screw air compressors, boasting over a decade of industry expertise.
Q2. How do you ensure quality control?
A: 1. We conduct stringent inspections on raw materials to ensure only the finest quality is used.
2. We maintain meticulous oversight of installation processes to uphold our high standards.
3. Each unit is subjected to at least 5 hours of rigorous continuous testing before dispatch to guarantee performance.
Q3. What details must I provide to obtain the right machine?
1. Specify the required air delivery capacity (Units: CFM or m³/Min) to match your needs.
2. Outline the necessary working pressure (Units: PSI, Bar, or Mpa) for optimal operation.
3. Provide the voltage and frequency specific to your location (V/Hz) to ensure compatibility.
4. Indicate any additional accessories needed, such as an air tank, filters, or air dryers, to customize your setup.
Provide these details, and we will tailor the ideal solution specifically for you!
Q4. What are the standard unit conversions?
1Bar = 0.1Mpa = 14.5PSI for pressure measurements.
1m³/min = 35.32cfm for volumetric flow rates.
1KW = 1.34HP for power output.
Q5. What are the available voltage options for air compressors?
A: Sanzhi (Henan) Compressor Co., Ltd. is proud to offer an impressive array of voltage options for our state-of-the-art compressors: 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, 440V/60Hz/3P. Moreover, we provide bespoke customization to cater to your specialized requirements, guaranteeing our products seamlessly fit your specific needs with precision.
Q6. What is the typical delivery time?
A: Experience swift and efficient delivery with our standard voltage models, boasting an impressive lead time of merely 15 working days post-order confirmation. For non-standard voltage requests, our dedicated sales team will craft a tailored delivery schedule, providing a bespoke solution that perfectly aligns with your unique demands.
Q7. What's the payment term?
A: Our payment terms are designed with your convenience in mind. They include a 30% T/T deposit at the outset, followed by a 40% T/T prior to shipment, and the remaining 30% T/T upon receipt of the B/L copy. Payments are accepted in both USD and RMB, accommodating your currency preference for a seamless and hassle-free transaction experience.
Q8. How about your warranty?
A: Enjoy peace of mind with our robust warranty program, featuring a comprehensive one-year warranty covering the entire machine, and an additional two-year warranty specifically for the screw air compressor. This includes all non-consumable parts, ensuring lasting protection and assurance for your investment.
Q9. What about the maintenance?
A: To maintain optimal performance and reliability, we suggest commencing your first maintenance inspection after 500 hours of use. Subsequently, schedule consistent maintenance every 2000-3000 hours, tailored to your specific working conditions, to ensure sustained excellence and dependability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are meticulously engineered to excel in high-temperature environments. With the capability to operate efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), they deliver reliable performance even in the most demanding conditions.
Q11. Do you offer OEM service?
A: Certainly, we offer comprehensive OEM and ODM services, with our dedicated design team poised to deliver innovative and flexible solutions that align perfectly with your brand vision, ensuring seamless integration with your unique specifications.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered with exceptional durability in mind, boasting a remarkable lifespan that exceeds 10 years. This ensures unparalleled reliability and enduring peace of mind for your long-term needs.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we guarantee the provision of essential spare parts for all our machines. This ensures efficient maintenance and rapid repairs, facilitating uninterrupted operations and sustained efficiency.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service includes thorough online guidance for installation and commissioning. Additionally, for your convenience, we offer the possibility of dispatching engineers for on-site training and installation support, ensuring a seamless and successful operational launch.
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