Introducing the groundbreaking Low-Pressure Compressor by Sanzhi (Henan) Compressor Co., Ltd.! This state-of-the-art Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor is a masterpiece of engineering, destined to set new standards in industrial performance and reliability. Discover an unparalleled range of power options, including 15KW, 22KW, 30KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and 250KW. This versatile marvel promises unmatched efficiency and steadfast operation, propelling your business into the future with advanced technology designed precisely to meet the diverse and demanding needs of today's innovative industries.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal scenario of air compression, the energy needed for single-stage pressure transmission equals the combined energy requirements of multi-stage compression. However, real-world conditions introduce factors such as coupling power losses, bearing friction, and the cooling effects of fluid viscosity, which result in elevated operational power needs. By reducing the compression ratio at each stage, you can effectively minimize these inefficiencies. As a result, the total power consumption in multi-stage compression is indeed lower than that of single-stage compression.
Unleash the future of air compression with our cutting-edge two-stage screw air compressor! Crafted with an advanced twin-stage rotary screw mechanism, this groundbreaking system features an active screw in each stage, energized by a robust external power transmission setup. The design epitomizes excellence with the first stage employing a low-pressure screw group, and seamlessly advancing to a high-pressure screw group in the second stage. Each meticulously engineered screw is surrounded by a protective sealing air film. Embark on a journey of efficiency where the gas experiences a dynamic tri-phase process: suction, pressurization, and exhaust, all functioning together to deliver unparalleled compression performance.
First Stage Compression: Experience the pinnacle of efficiency in the initial phase of our two-stage screw air compressor. Here, gas is masterfully compressed with a low-pressure screw group. The journey begins as the gas is expertly introduced into the compression chamber via the suction valve. Watch as the screw rotor's high-speed rotation deftly compresses the gas, preparing it with ease for a smooth transition into the second stage.
Second Stage Compression: Elevate your compression journey in the second stage screw group, where the gas undergoes advanced compression within a strategically confined screw space. This phase achieves heightened temperatures and pressures, culminating in a forceful release through the exhaust valve. The high-pressure gases exit triumphantly, marking the completion of the seamless compression cycle.
The natural air commences its journey as it is meticulously drawn through the air filter into the first compression stage, where it merges with a precise amount of lubricating oil. This enriched mixture is compressed to an intermediate pressure. The journey then leads through a cooling channel, where the gas engages with an abundant oil mist, significantly lowering its temperature. As the cooled, compressed gas advances to the second-stage rotor, it undergoes final compression to achieve ultimate exhaust pressure. The culmination of this sophisticated process sees the fully compressed gas exiting the system through the exhaust valve, efficiently completing the compression cycle.
1) High Efficiency of PM Motor:Experience the pinnacle of energy performance with our cutting-edge permanent magnet motor. This formidable engine boasts an expansive torque and weak magnetic range, yielding an astonishing 20-30% enhancement in efficiency compared to traditional motors. Even when deviating from standard operating frequencies, the motor consistently maintains peak efficiency, ensuring remarkable performance across all conditions.
2) Two-Stage Compression Unique Air End:Embrace innovation with our groundbreaking two-stage compression screw technology. Our meticulously crafted air end seamlessly integrates first and second-stage compression rotors within a singular casing, driven by precision gears, each rotor achieving its optimal speed. This sophisticated design elevates compression efficiency to unprecedented heights.
3) Integrated Frequency Converter: Leverage the prowess of China's leading frequency system embedded in our air compressor, offering comprehensive speed regulation and unmatched accuracy. Customize the frequency to perfectly match your gas requirements, resulting in extraordinary energy savings and operational excellence.
4) Reduce Internal Leakage:Utilizing cutting-edge two-stage compression technology, we significantly lower the compression ratio for each stage, dramatically minimizing internal leakage from high to low-pressure zones and substantially enhancing volumetric efficiency.
5) Variable Frequency Start and the Soft Startof the motor are flawlessly executed, dramatically reducing impacts on power grid systems and protecting electrical components from potential damage.
6) Reduce Energy Consumption: Our frequency conversion technology excels from 25% to 100%, far exceeding the conventional 50% to 100% range. Energy savings skyrocket over 30% compared to fixed-speed compressors and around 5% over standard variable frequency models, particularly in variable demand conditions.
7) No Transmission Loss: Our revolutionary integrated shaft direct connection between the permanent magnet motor and compressor ensures a sleek design. With the absence of couplings or transmission parts, we achieve an unparalleled 100% transmission efficiency.
8) Air Cooling Method: Take advantage of our high-energy efficient air cooling system, providing exceptional cooling that dramatically lowers compressed air temperature. Near-isothermal compression minimizes pressure loss between stages, reducing compression ratios and enhancing overall efficiency.
9)Smart Touch Controller: Our sophisticated built-in intelligence streamlines manual intervention. Featuring a high-definition color electronic display, it presents intuitive graphical interfaces, maintenance updates, fault alarms, and safety shutdown alerts to ensure seamless operations.
10)Special Type Intake Valve:Its automated functionality guarantees smooth engine fuel and oil flow. Ultra-low oil circuit loss significantly boosts efficiency. In emergencies, the normally open solenoid valve closes automatically to prevent oil injection, ensuring system safety.
Ultra-low oil circuit loss enhances overall efficiency.
The normally open solenoid valve automatically closes during emergency stops to prevent oil injection, ensuring system safety.
11)Excellent Air Filter:Our top-tier air filter provides superior purification, maintaining an immaculate air system with its advanced three-stage filtration to ensure outstanding air quality. It effectively eliminates steam and dust, adhering to the most stringent emission standards.
12)High-Quality Soundproof Cotton:Our expertly crafted noise reduction housing and premium soundproof cotton significantly reduce vibrations and noise levels, creating a serene and efficient work environment.
13) Motor Maintenance-Free:Our maintenance-free permanent magnet motor, devoid of internal bearings, eradicates the need for bearing upkeep or replacement, significantly reducing long-term maintenance costs while enhancing reliability.
14) Noise Reduction:Step into a realm of unparalleled tranquility with our revolutionary two-stage compression technology. This cutting-edge system expertly reduces the compression ratio, delivering a significant decrease in operational noise, especially during unloading phases. Immerse yourself in a quieter and more efficient workspace, enhancing your productivity with the Professional Industrial Screw Compressor from Sanzhi. Pioneering the way in acoustic comfort and performance excellence, this compressor is your gateway to a new era of soundless efficiency.
15) Effortless Maintenance and Service:Our sophisticated two-stage compressor unit flawlessly preserves the familiar structure and systems of a classic single-stage compressor. By only eliminating the screw air end, we ensure that maintenance and service are straightforward and intuitive for everyone. Enjoy hassle-free upkeep and maintain peak performance continuously with Sanzhi's Professional Industrial Screw Compressor, designed for effortless reliability and convenience in every facet.
| 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. |
1. Competitive Pricing
Experience unparalleled value by aligning with Sanzhi (Henan) Compressor Co., Ltd. Gain exclusive access to our factory-direct prices, ensuring you maintain an edge in the competitive market landscape. Our commitment to affordability is unmatched, offering you a remarkable opportunity to enhance your profitability with premium, cost-efficient products.
2. Direct Transactions
Benefit from enhanced cost-efficiency and absolute assurance with our direct transaction model. All products are supplied straight from the factory to you, guaranteeing utmost savings and reliability. This direct approach eliminates intermediaries, ensuring you receive the most competitive rates along with exceptional service.
3. OEM & ODM Services
Leverage our robust production and management prowess. We provide bespoke OEM and ODM services, meticulously tailored to your specifications, ensuring we meet and exceed your unique needs. Our innovative solutions are crafted to align perfectly with your vision, giving you the flexibility and customization you require.
4. Customized Solutions
We excel in handling non-standard and export orders, adapting to specific voltage, power, and pressure needs. Bring us your custom requirements, and we will deliver solutions precisely aligned with your expectations. Our expertise in customization guarantees that your specific demands are met with precision and excellence.
5. Small Order Acceptance
Initiate your journey with a small trial order and personally experience the outstanding quality of our products, securing your complete satisfaction before scaling up your orders. Our approach allows you to evaluate our exceptional standards and forge a strong foundation for a prosperous partnership.
6. Rapid Delivery
Rest assured with our efficient and timely delivery service. We ensure your premium products arrive promptly, maintaining the smooth and uninterrupted flow of your operations. Our commitment to swift logistics guarantees that your business continues to operate seamlessly without any delays.
7. Comprehensive Authorization
Amplify your distribution potential with our extensive authorization certifications. Market and sell SANZHI brand products confidently, bolstered by our comprehensive certification backing. Our robust credentials empower you to enhance your market presence and trust among your customers.
Nestled in the forefront of innovation, Sanzhi (Henan) Compressor Co., Ltd proudly stands tall as a luminary in the manufacturing realm. We are specialists in the art and science of crafting advanced screw air compressors and cutting-edge vacuum pumps. With a rich legacy spanning over a decade, our extensive product portfolio caters to a myriad of needs, offering both standard and low-pressure screw compressors, alongside revolutionary permanent magnet frequency conversion types, and the intricately designed two-stage compression models. Our offerings further extend to compressors tailored explicitly for laser cutting, and adaptable single-tank and double-tank mobile screw variants. To complement this range, we have electric and diesel-driven mobile screw compressors and our trailblazing screw vacuum pumps, all designed for maximum efficiency and reliability.
Our avant-garde production facility is a testament to technological excellence, housing state-of-the-art multi-air compressor assembly lines. This ensures unmatched precision and efficiency in our manufacturing processes. With a steadfast team of over 50 highly skilled professionals, we are relentless in our pursuit of perfection, continually advancing our management systems, including ERP solutions, to reduce lead times and ensure the rapid delivery of our world-class products.
Our meticulously developed management systems are committed to upholding the zenith of quality standards. Backed by the esteemed ISO9001 certification, our unwavering adherence to stringent quality control procedures is evidenced at every step. Each unit is subjected to comprehensive inspections, from meticulous material assessments and vigilant production oversight to meticulous pre-delivery evaluations, ensuring our products exude unparalleled reliability and excellence.
Our outstanding customer service journey commences with an expert pre-sales team poised to provide insightful guidance, assisting you in selecting the ideal air equipment for diverse facilities. We proudly offer extensive customization options, covering aesthetic appeal and configuration, alongside tailor-made products to fulfill distinct dealer requirements through our OEM services. Our dedicated sales and service team stands ready to deliver swift and effective post-sales support, ensuring your every requirement is met with promptness and precision.
At Sanzhi (Henan) Compressor Co., Ltd, we are unwavering in our commitment to delivering superior, reliable, and stable products. Our dedication is evident as we strive to nurture enduring partnerships with our clients. We promise efficient delivery and top-tier machinery at competitive prices, ensuring that you receive the ideal compressed air solution tailored to your unique needs.
Located in the picturesque Xinzheng City, Henan Province, China, our factory benefits from a strategic location just 30 kilometers from Xinzheng International Airport, approximately an hour's drive away. We warmly invite you to visit us and experience our extraordinary offerings firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer with a specialization in screw air compressors, proudly boasting over ten years of invaluable industry expertise.
Q2. How do you control quality?
A: 1. Our raw materials are subjected to uncompromising inspections to ensure they meet the highest benchmarks of quality.
2. We meticulously monitor the precise installation process to guarantee flawless results.
3. Each machine is rigorously tested for a minimum of 5 continuous hours before dispatch, ensuring optimal performance.
Q3. What information must I provide to get the suitable machine?
1. Your desired air delivery capacity (Unit: CFM or m³/Min).
2. The working pressure you require (Unit: PSI, Bar or Mpa).
3. The voltage and frequency specifications specific to your country of residence (V/Hz).
4. Any additional accessories you might require, such as an air tank, filters, or air dryers.
Share this vital information with us, and we will craft a perfect solution tailor-made for you!
Q4. What is the general unit conversion?
1Bar equals 0.1Mpa, which is equivalent to 14.5PSI.
1m³/min is equivalent to 35.32cfm.
1KW is equal to 1.34HP.
Q5. What is the available voltage air compressor?
A: At Sanzhi, we dedicate ourselves to providing unmatched versatility, with a wide range of voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Beyond our standard offerings, we extend bespoke customization services to ensure that our products meet your exacting demands and unique specifications.
Q6. How long is the delivery time?
A: For our standard voltage models, we guarantee prompt delivery in as little as 15 working days following order confirmation. For non-standard specifications, please engage with our dedicated sales team for tailored timelines and personalized support to suit your needs.
Q7. What's the payment term?
A: Our adaptable payment terms are designed for your convenience: begin with a 30% T/T upfront, followed by 40% T/T prior to shipment, and conclude with 30% T/T upon receiving the B/L copy. We accept transactions in both USD and RMB, offering you maximum flexibility.
Q8. How about your warranty?
A: Experience complete assurance with our comprehensive warranty: a full year covers the entire machine, while an additional two-year term is specifically dedicated to the screw air compressor. Please be advised that consumable spare parts are excluded from this warranty coverage.
Q9. What about the maintenance?
A: To maintain peak performance, we recommend the first maintenance after 500 hours of operation, followed by routine maintenance every 2000-3000 hours. This schedule can be adjusted based on your specific environmental conditions to ensure optimal efficiency.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our cutting-edge machines are engineered to provide stellar performance even in high-temperature environments. They effortlessly operate within a broad temperature range, from a brisk -20° to a warm 45° (-4ºF to 113ºF), catering to diverse operational needs.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, driven by our creative and professional design team. We are enthusiastic about fulfilling your custom orders and turning your distinctive visions into reality.
Q12. How long could your air compressor be used?
A: Built for exceptional endurance and durability, our air compressors are designed to deliver reliable service for more than a decade, ensuring long-lasting satisfaction and operational efficiency.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we supply a comprehensive selection of high-quality spare parts, meticulously crafted to sustain the efficiency and longevity of your equipment, ensuring uninterrupted performance and extended machinery life.
Q14. How about your after-sales service?
A: Our exceptional after-sales service is one of our hallmarks, encompassing extensive online support for installation and commissioning. When required, we can also deploy expert engineers to provide hands-on training and detailed installation assistance, ensuring seamless integration and operation.
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