Introducing the groundbreaking Low-Pressure Compressor, an exceptional innovation brought to you exclusively by Sanzhi (Henan) Compressor Co., Ltd.! Embark on a transformative journey of industrial excellence with this unmatched Two-Stage Compression Permanent Magnet Variable Frequency Drive Screw Air Compressor, an authentic marvel of modern engineering. This remarkable machine offers an extraordinary selection of power options: 15KW, 22KW, 30KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and reaching up to an impressive 250KW. This versatile powerhouse is crafted to deliver unmatched efficiency and unwavering reliability across all applications. Revolutionize your operations with this state-of-the-art marvel, meticulously engineered to exceed the diverse and demanding needs of today's industries. Immerse yourself in the pinnacle of air compression technology with this high-capacity powerhouse, ideally suited for heavy-duty applications. Featuring an advanced two-stage air cooling system, the compressor ensures optimal performance and durability, making it the ultimate choice for businesses determined to streamline operations and amplify productivity. Discover Sanzhi's pioneering innovation, where superior quality effortlessly blends with exceptional performance, redefining industrial standards and expectations.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Within our meticulously engineered air compression environment, the energy demand for single-stage compression is comparable to that of multi-stage compression. However, in real-world operations, coupling power losses, bearing friction, and the fluid's viscous cooling effects increase energy consumption. By skillfully reducing the compression ratio at each stage, these inefficiencies are substantially mitigated. Thus, the overall power consumption for multi-stage compression becomes significantly lower than single-stage, ensuring superior, cost-effective operation.
Introducing our revolutionary two-stage screw air compressor, featuring an elegantly sophisticated twin-stage rotary screw mechanism. This innovative design includes an active screw at each stage, propelling a passive screw through a powerful external power transmission system. The initial stage incorporates a low-pressure screw group, while the subsequent stage houses a high-pressure screw group. Each screw is meticulously enveloped in a sealing air film. During its operation, the gas undergoes a three-phase cycle-suction, pressurization, and exhaust-delivering exceptional compression efficiency and top-tier performance.
First Stage Compression: As the operation of our two-stage screw air compressor begins, the gas is expertly compressed using a low-pressure screw group. Initially, the gas is drawn into the compression chamber via the suction valve, where the rapid rotation of the screw rotor compresses it. After this primary compression, the gas is seamlessly conveyed to the second stage, laying the foundation for further compression.
Second Stage Compression: In this subsequent stage, the gas undergoes additional compression within a more confined screw space, escalating to higher temperatures and pressures. The process reaches its climax as the exhaust valve opens, allowing high-pressure gases to exit the system, thereby completing the entire compression cycle with precision and effectiveness.
Natural air is initially drawn through the air filter into the first compression stage, where it combines with a minute amount of lubricating oil. This mixture is then compressed to an intermediate pressure level. Following this stage, the gas transitions into a cooling channel, where it interacts with a substantial amount of oil mist, significantly reducing its temperature. The cooled, compressed gas then advances to the second-stage rotor for its final compression to the ultimate exhaust pressure. Upon reaching this stage, the fully compressed gas exits the system via the exhaust valve, concluding the compression cycle with remarkable precision and efficiency.
1) High efficiency of PM motor:Unleash the power of energy efficiency like never before with our state-of-the-art permanent magnet motor. Witness a staggering 20-30% surge in efficiency compared to conventional motors, brought to life by its expansive constant torque range and dynamic weak magnetic attributes. Even as it soars past rated frequency levels, it consistently delivers top-tier efficiency, ensuring your operations are always at their best.
2) Two-stage compression unique air end:Introducing our revolutionary two-stage compression screw mechanism, skillfully crafted with a distinctive air end that harmoniously merges dual compression rotors within a singular housing. With direct gear-driven rotors that operate at peak linear velocities, this marvel dramatically amplifies compression efficiency while guaranteeing exceptional reliability.
3) Integrated frequency converter: Boasting China's foremost frequency system, our compressor provides an extensive speed modulation range with unparalleled precision. Customize the frequency effortlessly to align with your real-time gas demands, unlocking extraordinary energy savings and unmatched performance.
4) Reduce internal leakage:Our pioneering two-stage compression technology masterfully reduces the compression ratio per stage, effectively slashing internal leakage from high to low-pressure domains. This innovation results in superior volumetric efficiency and exceptional overall compressor performance.
5) Variable frequency start and the soft startLeveraging variable frequency and soft start capabilities, our motor significantly diminishes the impact on power grid infrastructures, safeguarding electrical components from potential damage while prolonging their lifespan.
6) Reduce energy consumption: Experience cutting-edge energy savings with our advanced frequency conversion system, operating efficiently from 25% to 100%. Outmatching the typical 50% to 100% range, it delivers over 30% reductions in energy use and an extra 5% efficiency boost over traditional variable frequency systems, ideal for fluctuating gas requirements.
7) No transmission loss: Featuring a seamless design with a direct link between the permanent magnet motor and compressor, transmission components are completely eliminated. This ensures impeccable 100% transmission efficiency, delivering unmatched performance without compromise.
8) Air cooling method: Our advanced air cooling system delivers remarkable cooling efficiency, significantly reducing compressed air temperatures. This innovation facilitates nearly isothermal compression, minimizes pressure losses, optimizes compression ratios, and enhances overall operational efficiency.
9)Smart Touch Controller: Our cutting-edge smart controller is imbued with inbuilt intelligence, minimizing manual efforts. With a high-resolution color electronic display, it offers intuitive graphical interfaces, maintenance alerts, fault notifications, and safety shutdown prompts for seamless operation at all times.
10)Special Type Intake Valve:The automatic opening ensures flawless engine fuel injection and oil circulation, elevating system efficiency to new heights.
With an exceptionally low oil circuit loss, the system's efficiency takes a noticeable leap forward.
The normally open solenoid valve maintains a secure seal during emergency stops, preventing oil injection and guaranteeing utmost system safety.
11)Excellent Air Filter:Our premium air filter provides unparalleled air purification through its robust three-stage filtration system, ensuring superior air quality. It effectively eliminates steam and dust, surpassing stringent emission standards for environmentally responsible operations.
12)High-Quality Soundproof Cotton:Our design, featuring innovative noise-canceling housing and premium soundproof cotton, significantly reduces operational noise and vibrations, creating a quieter and more efficient working environment.
13) Motor maintenance-free:Discover the brilliance of our state-of-the-art maintenance-free permanent magnet motor, a true marvel in design that effectively removes the need for internal bearings. This groundbreaking advancement eradicates the tedious tasks of bearing maintenance and replacement, delivering a remarkable reduction in long-term upkeep costs. Not only does this innovation enhance cost-efficiency, but it also elevates the reliability of our compressor systems, ensuring they consistently operate at their highest potential over extended periods. Experience unprecedented performance and dependability with Sanzhi.
14) Noise reduction:Embrace tranquility with the advanced two-stage compression technology, a remarkable creation by Sanzhi (Henan) Compressor Co., Ltd. This trailblazing system is ingeniously designed to maximize the compression ratio, thereby significantly minimizing operational noise, particularly during unloading phases. Revel in a tranquil and efficient work environment, boosting your productivity with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Rely on Sanzhi's exceptional engineering expertise to transform and elevate your industrial operations to new heights.
15) Effortless Maintenance and Unmatched Service:Presenting our groundbreaking two-stage compressor unit, meticulously crafted by Sanzhi (Henan) Compressor Co., Ltd. This innovative design retains the familiar structure and systems of a single-stage compressor, with the distinction residing in the screw air end. This pioneering approach ensures that maintenance and service remain as straightforward and user-friendly as ever. Enjoy hassle-free maintenance alongside consistent, superior performance with the Sanzhi Efficient Robust Two-Stage Permanent Magnet VFD Screw Compressor. Depend on Sanzhi for seamless maintenance and exceptional results, ensuring your operations run smoothly and efficiently.
| 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
Unlock unparalleled value with Sanzhi (Henan) Compressor Co., Ltd. Partnering with us means benefiting from exclusive, factory-direct pricing that gives you a significant edge. Elevate your market position with our strategically superior pricing, crafted to boost your profitability and set you apart in the competitive landscape.
2. Direct Transactions
Streamline your purchasing journey with our cost-efficient and reliable direct transaction model. Our seamless logistics ensure products are delivered directly from our factory to your location, providing significant savings and ensuring a consistently reliable supply chain.
3. OEM & ODM Services
Leverage our cutting-edge production and management expertise to access premier OEM and ODM services. Each offering is meticulously tailored to your specific needs, ensuring all custom requirements are executed with precision and excellence.
4. Customized Solutions
Thrive in handling non-standard and export orders with our personalized solutions. We adeptly address diverse voltage, power, and pressure requirements, crafting tailored responses to meet your specifications. Share your unique needs, and we'll develop solutions that seamlessly align with your expectations.
5. Small Order Acceptance
Start your journey with us through a small trial order and witness the premium quality of our products firsthand. Ensure complete satisfaction before expanding to larger orders, providing you with confidence and peace of mind in your purchasing decisions.
6. Rapid Delivery
Experience peace of mind with our swift and dependable delivery services. We prioritize the prompt arrival of our high-quality products, ensuring your operations remain uninterrupted and at peak performance.
7. Comprehensive Authorization
Expand your distribution prowess with our robust authorization credentials. Market and distribute SANZHI brand products with unwavering confidence, backed by our comprehensive certification process that supports your success.
Sanzhi (Henan) Compressor Co., Ltd stands as an illustrious leader in the advanced world of screw air compressors and vacuum pumps. Armed with over ten years of unparalleled industry experience, we proudly unveil an innovative lineup of products. Our diverse selection comprises standard and low-pressure screw air compressors, remarkably efficient permanent magnet frequency conversion screw air compressors, and the state-of-the-art two-stage compression screw air compressors. We cater to specialized needs with our laser cutting screw air compressors, complemented by adaptable single-tank and double-tank mobile screw air compressors. Our electric and diesel mobile screw air compressors are crafted with meticulous precision for outstanding performance. Furthermore, our cutting-edge screw vacuum pumps are engineered to meet the highest industrial standards.
Our ultra-modern production facility, equipped with sophisticated multi-air compressor assembly lines, ensures extraordinary efficiency and precision in every product we create. With a dedicated team of over 50 highly skilled experts, we are relentless in optimizing our management systems, such as ERP, to significantly reduce lead times and ensure the rapid delivery of premium products. Our unwavering quest for innovation keeps us at the industry's forefront, setting new standards of excellence.
Our meticulously developed management systems are designed to uphold the highest quality standards. Bolstered by the esteemed ISO9001 quality management system certification, we implement rigorous quality control procedures. Each machine undergoes exhaustive inspections at various stages, including material selection, production checks, and pre-delivery assessments, ensuring unparalleled product reliability and excellence. Our steadfast commitment to quality offers you absolute confidence in superior performance.
Experience our exceptional customer service from start to finish, beginning with our pre-sales team offering expert guidance to select the ideal air equipment for diverse facilities. We offer extensive customization options, including design and configuration modifications, and provide bespoke solutions to meet specific dealer requirements through our OEM services. Our professional sales and support team stands ready to deliver prompt and effective post-sales assistance, ensuring your needs are addressed swiftly and accurately. Relish in unparalleled customer care with Sanzhi.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering commitment lies in delivering products that epitomize excellence, reliability, and stability. We are dedicated to fostering enduring partnerships with our clients, guaranteeing timely delivery, world-class machinery, and competitive pricing. Our mission is to provide the optimal compressed air solution tailored to your specific requirements, delivering unmatched value, performance, and satisfaction.
Nestled in the scenic landscape of Xinzheng City, Henan Province, China, our factory is conveniently located just 30 kilometers from Xinzheng International Airport, making it easily accessible-approximately an hour's drive away. We warmly extend an invitation for you to visit our facility and witness our exceptional offerings firsthand! Come and discover the unique Sanzhi experience in person.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a highly esteemed manufacturer specializing in screw air compressors, with over a decade of profound industry expertise. Our extensive experience distinctly sets us apart in the market, showcasing our exceptional capabilities.
Q2. How do you control quality?
A: 1. We meticulously inspect our raw materials to ensure exceptional quality before commencing production.
2. Our installation process is carefully monitored at every phase to ensure precision.
3. Each machine is subjected to a minimum of 5 continuous hours of rigorous testing before dispatch, assuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Your required air delivery capacity (Unit: CFM or m³/Min).
2. The desired working pressure (Unit: PSI, Bar or Mpa).
3. The voltage and frequency specifications of your country of residence (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, or air dryers.
Share this information with us, and we will craft a flawlessly tailored solution just for you! Our expertise ensures precision and excellence in meeting your exact needs.
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32 cfm. This precise conversion highlights the outstanding capacity of our compressors, ensuring they adeptly meet the diverse demands of various industrial applications with unmatched performance and efficiency.
1KW = 1.34 HP. This power conversion highlights the remarkable capability of our compressors to deliver significant power, ensuring consistent and reliable operation even under the most demanding conditions.
Q5. What is the available voltage air compressor?
A: Sanzhi (Henan) Compressor Co., Ltd. provides an extensive range of voltage options, expertly catering to global needs. Choose from 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We excel in delivering meticulously customized solutions, ensuring seamless compatibility and superior performance tailored to your unique electrical specifications.
Q6. How long is the delivery time?
A: For standard voltage units, our efficient processes ensure dispatch within an impressive 15 working days post order confirmation. For non-standard voltage requirements, consult our dedicated sales team to receive a precise delivery schedule, expertly tailored to your specific needs.
Q7. What's the payment term?
A: Our payment terms are designed for utmost convenience: 30% T/T in advance, 40% T/T before shipment, and the final 30% T/T upon receiving the B/L copy. We accommodate payments in both USD and RMB, offering flexibility and ease for seamless transactions.
Q8. How about your warranty?
A: Sanzhi proudly offers a comprehensive warranty, ensuring peace of mind: one year for the entire machine and two years for the screw air compressor. Consumable spare parts are the only exception, underscoring our commitment to quality and durability.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be performed after 500 operating hours. Thereafter, maintenance intervals are recommended between 2000-3000 hours, tailored to match your specific working environment, ensuring optimal performance and longevity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are engineered for exceptional performance, even under extreme temperatures. They maintain efficient operation within a broad range of -20° to 45° (-4ºF to 113ºF), ensuring reliability and endurance in the most challenging conditions.
Q11. Do you offer OEM service?
A: Yes, we specialize in offering both OEM and ODM services. Our expert design team excels at bringing your custom orders to life, crafting tailor-made solutions that align seamlessly with your specifications, enhancing brand identity and product differentiation.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously designed for exceptional longevity, boasting a remarkable lifespan that typically surpasses 10 years of reliable and efficient service, ensuring sustained productivity and value.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we offer a comprehensive range of premium spare parts, designed to ensure your machines continue to operate seamlessly and maintain peak performance, maximizing uptime and operational efficiency over the long term.
Q14. How about your after-sales service?
A: We provide exceptional after-sales support, offering detailed online installation and commissioning guidance. If required, we can arrange for expert engineers to deliver hands-on training and meticulous installation assistance, ensuring seamless integration and optimal operation.
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