Unleash the full potential of your industrial capabilities with the magnificent Large Power Oil-Lubricated Screw Compressor, brought to you by Sanzhi (Henan) Compressor Co., Ltd., celebrated as China's premier supplier. Take advantage of the extraordinary factory-direct pricing on this innovative Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Expertly designed to provide remarkable energy savings and unrivaled efficiency, this compressor incorporates the highest quality High-Quality Centrifugal Fans. Set a new standard in reliability and performance with this stationary compressor, meticulously crafted for even the most demanding industrial applications. Elevate your operational prowess with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, showcasing extraordinary durability and consistency. Experience the pinnacle of efficiency, dependability, and cost savings with Sanzhi's advanced compressor technology, masterfully engineered to elevate your industrial processes to new heights of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of air compression excellence, the ideal scenario would see the energy needed for a single-stage compression perfectly aligning with the cumulative energy of multi-stage operations. However, the reality presents challenges such as coupling transmission inefficiencies, bearing friction, and the cooling effect of fluid viscosity, all of which elevate energy demands. To optimize efficiency, reducing the compression ratio at each stage is paramount, ensuring that the total energy for multi-stage compression is more efficient than that for a single-stage process.
Witness the ingenuity of modern engineering embodied in the two-stage screw air compressor, featuring a dual rotary screw system with both active and passive screws. The active screw is driven by an external source, orchestrating the passive screw's movement. This engineering feat begins with a low-pressure screw set at the first stage, evolving to a high-pressure configuration in the second stage. Each screw is enveloped by a sealing air film, enabling seamless gas compression through a precise sequence of suction, pressurization, and release cycles as the screws rotate.
First Stage Compression: The journey of gas compression embarks at this essential phase. Gas is drawn into the screw's chamber via the suction valve, where the rotor's rapid spin compresses the gas, efficiently channeling it to the second stage.
Second Stage Compression: At this critical juncture, gas enters a denser screw chamber, undergoing compression at significantly elevated temperatures and pressures. The exhaust valve expertly opens, skillfully discharging the high-pressure gas from the system.
The process begins as ambient air is drawn into the initial stage through an air filter. Here, it merges with a minute quantity of lubricating oil in the compression chamber. The mixture undergoes compression to an intermediate pressure, then proceeds through a channel where it interfaces with oil mist, dramatically reducing its temperature. This cooled gas advances to the second-stage rotor for further compression, reaching ultimate exhaust pressure, and culminating in the release of high-pressure gas through the exhaust valve, completing the cycle.
| 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. |
Unleash the phenomenal performance and unmatched efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This state-of-the-art system, featuring a high-speed rotating impeller, masterfully controls air acceleration and deceleration, ensuring seamless axial entry and rapid cooling. It vastly outperforms conventional air-cooled fans, enabling continuous operations and remarkably extending the compressor's lifespan.
1) Superior Efficiency of PM Motor:Our advanced permanent magnet motor is engineered for excellence, providing an expanded constant torque and weak magnetic range. Experience an impressive enhancement of 20-30% in efficiency over conventional motors. It reliably delivers exceptional performance, even surpassing the rated frequency.
2) Maintenance-Free Motor Design:Ingeniously designed without internal bearings, our permanent magnet motor eliminates costly maintenance and replacement challenges associated with traditional motor bearings.
3) State-of-the-Art Integrated Frequency Converter:Equipped with China's premier frequency system, our compressor offers a broad and precise speed regulation range, skillfully adapting to real-time gas demand. It provides extraordinary energy-saving benefits.
4) Zero Transmission Loss Achieved:The innovative integrated shaft structure directly connects the permanent magnet motor to the compressor, removing couplings and transmission components, ensuring flawless 100% transmission efficiency.
5) Advanced Variable Frequency Start and Soft Start:This feature significantly reduces the strain on power grid equipment, effectively protecting electrical systems from potential damage.
6) Optimized Energy Consumption:Our frequency conversion range extends from 25% to 100%, surpassing the common 50% to 100% range. This innovation leads to over 30% energy savings compared to fixed-speed air compressors and approximately 5% more than standard variable frequency compressors. Greater variations in system gas consumption further enhance these energy-saving effects.
7) Distinctive Two-Stage Compression Air End:Our cleverly designed air end integrates first-stage and second-stage compression rotors within a single casing, each gear-driven. This design ensures optimal linear speed and boosts overall compression efficiency.
8) Revolutionary Internal Spray Curtain Cooling Method:Our high energy-efficient internal spray curtain cooling technique provides exceptional cooling, dramatically lowering the temperature of compressed air. It achieves nearly isothermal compression, reduces interstage pressure loss, lowers compression ratios, and enhances overall compression efficiency.
9) Significantly Reduced Internal Leakage:By optimizing the compression ratio for each stage, our two-stage compression approach minimizes internal leakage between high and low-pressure ends, significantly improving volume efficiency.
10) Effective Noise Reduction:The two-stage compression system expertly diminishes the compression ratio, resulting in substantially reduced noise levels, particularly during unloading.
11) Effortless Maintenance and Service:With a two-stage compressor unit, the similarities in systems and structures to single-stage compression make maintenance and user servicing simple and convenient, except for the screw air end.
12) Removable Door Panels:The unit's casing, crafted from noise-treated metal plates, features panels with high-density sound-absorbing material, ensuring noise levels comply with international standards. The door plate can be opened and removed, offering 270-degree all-around access, facilitating maintenance personnel's entry to the unit's interior and enhancing service and upkeep convenience.
1. Unrivaled Price Competitiveness
Experience unbeatable pricing power with our direct ex-factory prices, granting our valued customers a robust competitive advantage in their markets. Enjoy substantial cost reductions while maintaining premium quality, empowering you to command your market sphere with unwavering assurance and confidence.
2. Effortless Direct Transactions
Our products are dispatched straight from the factory, offering cost-effective solutions without compromising on quality. By cutting out the middlemen, we pass the savings directly to you, providing a seamless blend of affordability and excellence.
3. Superior OEM & ODM Services
Utilizing our state-of-the-art production and management expertise, we deliver exemplary OEM and ODM services tailored to your specific needs. Partner with us to transform your vision into reality with unmatched precision and the highest standards of quality.
4. Bespoke Customization
We are open to non-standard, export, and custom orders for voltage, power, pressure, and more. Engage with us to discuss your unique requirements, and we will craft a solution engineered to meet your exact specifications seamlessly.
5. Embracing Small Order Requests
Initiate with a trial order to experience the remarkable quality of our products firsthand. Discover why clients consistently choose SANZHI for extraordinary performance and steadfast reliability.
6. Expedited and Trustworthy Delivery
Take advantage of our premium product array paired with swift and trustworthy delivery services. We ensure your orders arrive on time, ensuring your operations run smoothly and efficiently without interruption.
7. Extensive Authorization Support
We offer comprehensive authorization certificates to our esteemed distributors, enabling you to promote SANZHI brand products with full confidence. Leverage the strength of our brand to boost your sales and elevate your market presence.
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon in the manufacturing realm, renowned for delivering superior screw air compressors and vacuum pumps. With over a decade of unwavering innovation and excellence, our extensive product array encompasses standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, sophisticated two-stage compression units, laser-cutting-specific compressors, and versatile mobile screw compressors. Our offerings are presented in both single and dual-tank formats, powered by electric or diesel engines, and are enhanced by our innovative screw vacuum pumps.
Our production techniques epitomize efficiency and modernization, highlighted by our state-of-the-art multi-air compressor assembly lines. Supported by a skilled team of over 50 committed professionals, we relentlessly refine our ERP-enhanced management systems, markedly reducing lead times to ensure the timely delivery of premium products.
Adhering to the highest benchmarks, our manufacturing facility is proudly ISO9001 certified, epitomizing our unwavering dedication to impeccable quality management. We rigorously implement comprehensive quality control procedures, guaranteeing each apparatus is subject to meticulous material inspections, production assessments, and exhaustive pre-dispatch evaluations before leaving our facility.
Our customer service philosophy is second to none. Our expert pre-sales team provides invaluable guidance in selecting the optimal air equipment, offering extensive customization options for both aesthetics and configuration. We specialize in designing bespoke OEM products to fulfill distinct dealer needs. Our after-sales team, composed of seasoned experts, ensures swift and effective responses to all customer queries and requirements.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfast in our commitment to delivering high-performance, reliable products that foster enduring customer relationships. Our streamlined delivery schedules, superior machinery, and competitive pricing promise exceptional compressed air solutions with every engagement.
Strategically located in Xinzheng City, Henan Province, China, our factory boasts convenient accessibility. We offer complimentary transportation from Xinzheng International Airport to our facility, a brisk 30-kilometer journey taking just about an hour. We warmly invite you to visit us and witness our dedication firsthand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: We are a passionate manufacturer specializing in screw air compressors, with over a decade of industry expertise.
Q2. How do you ensure quality control?
A: 1. We enforce rigorous inspections on raw materials.
2. We maintain stringent oversight of installation processes.
3. Each unit is subjected to at least 5 hours of continuous testing before dispatch.
Q3. What details must I provide to obtain the right machine?
1. Specify the required air delivery capacity (Units: CFM or m³/Min).
2. Outline the necessary working pressure (Units: PSI, Bar, or Mpa).
3. Provide the voltage and frequency specific to your location (V/Hz).
4. Indicate any additional accessories needed, such as an air tank, filters, or air dryers.
Share these details with us, and we will tailor the ideal solution for you!
Q4. What are the standard unit conversions?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: Sanzhi proudly offers an extensive range of voltage options for our compressors, accommodating 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, 440V/60Hz/3P, with the added flexibility of customizing to fit your unique specifications. Trust us to meet your precise power needs effortlessly.
Q6. What is the typical delivery time?
A: Experience the advantage of our rapid delivery service for standard voltage compressors, boasting an impressive lead time of a mere 15 working days post-order confirmation. For tailored voltage requirements, our dedicated sales team is fully equipped to design delivery schedules that are perfectly aligned with your individual needs, ensuring optimal satisfaction and alignment with your business timelines.
Q7. What's the payment term?
A: We have meticulously crafted our payment terms for your utmost convenience and flexibility. Initiate with a 30% T/T deposit, follow up with 40% T/T prior to shipment, and complete the process with the final 30% T/T upon receiving the B/L copy. We accept payments in USD and RMB to cater to your preferred currency, making transactions smooth and stress-free.
Q8. How about your warranty?
A: Rest assured with our comprehensive warranty coverage, offering a full one-year warranty on the entire machine, complemented by an extended two-year protection plan exclusive to the screw air compressor, which covers all non-consumable parts. We are committed to providing consistent security and dependable performance.
Q9. What about the maintenance?
A: To ensure our machines consistently deliver optimum performance, we recommend an initial maintenance inspection after the first 500 hours of use. Following this, regular maintenance should be conducted every 2,000-3,000 hours, adapting to your specific operational conditions to sustain peak efficiency and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are expertly engineered to maintain exceptional functionality in high-temperature settings. They operate efficiently across a temperature spectrum from -20° to 45° (-4ºF to 113ºF), guaranteeing steadfast performance even in the most demanding environments.
Q11. Do you offer OEM service?
A: Certainly, our OEM and ODM services are designed to exceed your expectations. Our skilled design team is dedicated to creating pioneering and customizable solutions that align perfectly with your brand's vision and specifications, facilitating seamless integration into your product line.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for extraordinary durability, with a lifespan that surpasses 10 years, ensuring sustained reliability and peace of mind, allowing you to depend on them for many years of successful operation.
Q13. Will you provide some spare parts for the machines?
A: Indeed, we ensure the constant availability of essential spare parts for all our machinery. This commitment facilitates smooth maintenance and swift repairs, ensuring your operations remain uninterrupted and efficient.
Q14. How about your after-sales service?
A: Our robust after-sales service program includes comprehensive online guidance for installation and commissioning. For added convenience, we offer the option of sending our skilled engineers for on-site training and installation assistance, ensuring a seamless and highly effective operational commencement.
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