Introducing the groundbreaking Low-Pressure Twin-Stage Compression Permanent Magnet Variable Frequency Electric Drive Screw Compressor, proudly brought to you by Sanzhi (Henan) Compressor Co., Ltd.! With precision engineering tailored for the most demanding industrial applications, this state-of-the-art Twin-Screw Air Compressor redefines industry standards for both value and performance. Explore our extensive range of power options that include 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and 250KW. This energy-efficient marvel not only promises superior efficiency but also unwavering reliability. Choose our highly acclaimed compressor to experience unmatched quality at an exceptionally competitive price, making it the perfect investment for your business's future success.
Meticulously Crafted Internal Structure - Frontside: The Sanzhi 1488HP Two-Stage Screw Air Compressor showcases a fine-tuned and expertly engineered frontside. Every component is arranged with precision, ensuring seamless functionality and reliability at every operation.
Intricately Designed Internal Structure - Backside: Explore the complex and sophisticated back structure of the Sanzhi 1488HP. It is designed with attention to detail, enhancing the overall efficiency and performance, catering to the demanding needs of air compression.
Advanced Working Principle
In the realm of air compression, achieving the balance where single-stage transmission power aligns with the cumulative power of multi-stage compression remains an ideal. Yet, real-world conditions such as coupling power losses, bearing friction, and the cooling effect due to liquid viscosity present challenges. By wisely diminishing the compression ratio per stage, these challenges are mitigated. This optimized approach results in a highly efficient system, reducing the total power demand for multi-stage compression compared to single-stage compression.
Our cutting-edge two-stage screw air compressor features an ingenious dual-stage rotary screw mechanism. This advanced system comprises an active and passive screw within each stage. Driven by an external force, the active screw propels the passive one. The first stage incorporates a low-pressure screw assembly, while the second stage hosts a high-pressure screw assembly. Each screw is enveloped by a sealing air film, ensuring peak performance. As they revolve, the screws masterfully manage gas through the three critical phases of suction, pressurization, and discharge.
First Stage Compression: At the onset, gas is efficiently compressed by the low-pressure screw assembly. Entering through the suction valve, the gas is gradually compressed by high-velocity screw rotors. This methodical process propels the gas towards the secondary compression stage with enhanced precision and efficiency.
Second Stage Compression: During this critical phase, the gas is compressed within tighter screw chambers, leading to elevated temperatures and pressures. This stage culminates with the exhaust valve's opening, where the system effectively releases the high-pressure gas, ensuring optimal performance.
Natural air, once purified by an air filter, enters the primary compression stage, where it combines with a minimal quantity of lubricating oil in the compression chamber and is compressed to an intermediate pressure. As the compressed gas flows through the cooling channel, it encounters a significant oil mist, significantly reducing its temperature. This cooled, compressed gas is further compressed in the second stage rotor, achieving the ultimate exhaust pressure before being released through the exhaust valve, completing the compressor's highly efficient process.
1) Superior Efficiency of PM Motor:Our cutting-edge permanent magnet motor is designed for outstanding performance. With a broad constant torque and weak magnetic range, it operates at an impressive 20-30% higher efficiency than typical motors. This design ensures optimal efficiency across varying frequencies, delivering unwavering and superior performance.
2) Maintenance-Free Motor Design:Crafted with forward-thinking innovation, our permanent magnet motor does away with internal bearings, effectively eliminating the need for expensive bearing maintenance and replacements. Experience unmatched convenience with our motor's maintenance-free design.
3) Advanced Integrated Frequency Converter: Our compressor is equipped with China's top-tier frequency system, providing precise and comprehensive speed control. It seamlessly adjusts to real-time gas demands, enhancing energy conservation while optimizing performance efficiency.
4) Elimination of Transmission Loss: Our revolutionary integrated shaft design allows the permanent magnet motor to connect directly to the compressor. This compact, coupling-free structure ensures complete transmission efficiency, eliminating losses associated with conventional transmission parts.
5) Variable Frequency and Soft Start Capabilities:Our sophisticated variable frequency and soft start features significantly mitigate impacts on power grid infrastructure, safeguarding electrical components from possible harm and boosting system longevity.
6) Enhanced Energy Efficiency: Featuring a frequency conversion range from 25% to 100% (unlike the typical 50% to 100%), our system achieves over 30% energy savings relative to fixed-speed compressors. It surpasses standard variable frequency compressors by approximately 5%, with even greater savings in fluctuating gas consumption scenarios.
7) Unique Two-Stage Compression Air End:Our pioneering two-stage compression screw machine combines both the initial and secondary-stage rotors within a singular casing. Directly driven by gears, each rotor attains optimal linear velocity, greatly improving compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Our high-efficiency internal spray curtain cooling technique significantly reduces compressed air temperatures via near-isothermal compression, minimizing pressure loss and enhancing overall efficiency.
9) Minimized Internal Leakage:Through a dual-stage compression process, we effectively lower the compression ratio at each stage, minimizing internal leakage from high to low-pressure ends, leading to improved volumetric efficiency.
10) Significant Noise Reduction:Our dual-stage compression method effectively decreases the compression ratio, substantially reducing operational noise, especially during unloading, for a more serene work environment.
11) Effortless Maintenance and Service:The two-stage compressor unit features systems and structures akin to single-stage units, except for the screw air end, streamlining maintenance and ensuring user-friendly operation for all customers.
| 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. |
1. Unparalleled Price Advantage
By cutting out the middleman, Sanzhi (Henan) Compressor Co., Ltd. proudly offers unparalleled ex-factory prices on our top-tier Sanzhi 1488HP Two-Stage Screw Air Compressor with 90kw Power. This empowers you, our esteemed customer, with a robust market advantage, as you enjoy our competitively priced, premium-grade compressors.
2. Direct Transactions
Experience the unmatched reliability and peace of mind that comes from factory-direct transactions. With our products, you are guaranteed superior quality and remarkable cost-efficiency for all your air compression needs.
3. Tailored OEM & ODM Services
Harness the extraordinary production and management capabilities of our factory. We offer specialized OEM/ODM services, meticulously crafted to align with your distinct specifications and requirements.
4. Bespoke Customization Services
We stand ready to accommodate orders for non-standard and export specifications, addressing a wide array of voltage, power, and pressure specifications. Partner with us to meet your unique demands with precision.
5. Small Order Acceptance
Evaluate the remarkable performance and quality of our offerings with a small trial order. We ensure our products not only meet but exceed your highest quality expectations.
6. Swift Delivery
Enjoy seamless operational efficiency with our commitment to prompt and reliable delivery of top-notch products, ensuring your business runs without a hitch.
7. Comprehensive Authorization
Enhance your sales strategy with our comprehensive authorization certificates. This equips you with the confidence and assurance needed to effectively represent and promote SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of innovation and excellence, redefining the landscape of screw air compressors and vacuum pumps for over a decade. Our expertise is reflected in our extensive product portfolio, which boasts normal and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, advanced twin-stage compression screw air compressors, and specialized models tailored for laser cutting. Our offerings also include highly versatile single-tank and double-tank mobile screw air compressors, available in both electric and diesel-powered versions, alongside our efficiently designed screw vacuum pumps. With a commitment to engineering excellence, our diverse product line is crafted to fulfill the unique needs of various industries.
Our production prowess is strengthened by our state-of-the-art, high-efficiency multi-air compressor assembly lines, ensuring peak productivity. An adept team of over 50 professionals is dedicated to the continuous refinement of our management systems, including ERP, to significantly reduce lead times and guarantee the swift delivery of top-tier products.
Our unwavering commitment to quality is underscored by our ISO9001 certification. We meticulously adhere to stringent quality management protocols and enforce rigorous quality control procedures. Each machine undergoes exhaustive inspections covering materials, production, and pre-delivery stages to uphold the highest quality standards.
We take immense pride in our unparalleled customer service, starting with expert pre-sales advice to help clients identify the perfect air equipment, offering extensive customization options in both design and setup. We excel in OEM solutions, catering to unique dealer specifications. Our after-sales team, comprising adept sales and service professionals, ensures rapid and effective responses to every customer query and requirement.
At Sanzhi (Henan) Compressor Co., Ltd., we are steadfast in our mission to deliver dependable and superior products. Our focus is on fostering enduring partnerships with our customers, achieved through prompt delivery, high-caliber machinery, and competitive pricing. Trust in us for exceptional compressed air solutions that align perfectly with your requirements.
Situated in Xinzheng City, Henan Province, China, our factory is easily accessible. We extend complimentary pick-up services from Xinzheng International Airport, located a mere 30 kilometers away, offering a seamless one-hour journey to our facility. We warmly invite you to visit us and experience our operations firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an experienced manufacturer specializing in screw air compressors, with more than a decade of industry expertise.
Q2. How do you control quality?
A: 1. Comprehensive inspection of raw materials to ensure top-notch quality.
2. Strict oversight of installation processes to guarantee flawless execution.
3. Each machine undergoes a rigorous minimum of 5 hours of continuous testing prior to dispatch, ensuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min) to match your needs.
2. Desired working pressure (Unit: PSI, Bar, or Mpa) for optimal operation.
3. Voltage and frequency specifications of your country (V/Hz) to ensure compatibility.
4. Any additional accessories required, such as air tanks, filters, or air dryers, to enhance functionality.
Provide this information, and we will engineer the perfect solution tailored for you, ensuring a seamless fit for your operational needs!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI - Simplifying pressure conversions for you.
1 m³/min = 35.32 cfm - Streamlining volume measurements with ease.
1 KW = 1.34 HP - Converting power units effortlessly.
Q5. What is the available voltage air compressor?
A: Sanzhi offers an expansive array of voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, with the capability for customization to precisely fit your specific requirements.
Q6. How long is the delivery time?
A: For our standard voltage models, enjoy the swift advantage of expedited delivery, ensuring you receive your order within a mere 15 working days from the moment of order confirmation. Should you require non-standard models, our dedicated and knowledgeable sales team is ready to provide you with personalized assistance tailored to your unique needs.
Q7. What's the payment term?
A: Secure your purchase with ease through a structured payment plan: initiate with a 30% T/T deposit, followed by a 40% T/T payment prior to shipment. Conclude with the final 30% T/T upon presenting the B/L copy. For maximum convenience, we are delighted to accept payments in both USD and RMB.
Q8. How about your warranty?
A: Experience unparalleled peace of mind with our comprehensive warranty offering: a full year for the entire machine and an enhanced two-year warranty specifically covering the screw air compressor, with the exception of consumable spare parts.
Q9. What about the maintenance?
A: The initial maintenance is crucial and should be conducted after 500 hours of usage, followed by regular maintenance every 2000-3000 hours. Take into account the actual working environment to ensure optimal performance and longevity of your equipment.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines are meticulously crafted to perform with outstanding efficiency in high-temperature settings, boasting a sturdy operational temperature range between -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Indeed, we are proud to extend both OEM and ODM services, underpinned by our expert design team. Let us bring your innovative concepts to fruition with our specialized expertise.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for longevity, typically offering an impressive lifespan that exceeds 10 years, ensuring sustained reliability and high performance.
Q13. Will you provide some spare parts for the machines?
A: Indeed, we supply critical spare parts to guarantee the seamless and uninterrupted operation of your machines, keeping your operations running smoothly.
Q14. How about your after-sales service?
A: We provide comprehensive after-sales support, including detailed online installation and commissioning guidance. Furthermore, our skilled engineers are available for on-site training and installation assistance, ensuring you achieve optimal machine performance.
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