Introducing the revolutionary Low-Pressure Twin-Stage Compression Permanent Magnet Variable Frequency Electric Drive Screw Compressor from Sanzhi (Henan) Compressor Co., Ltd.! Crafted with unrivaled precision for demanding industrial applications, this state-of-the-art Twin-Screw Air Compressor offers exceptional value and top-tier performance. Available in a comprehensive range of power options, including 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, 132KW, 160KW, 185KW, 200KW, and 250KW, this energy-efficient powerhouse guarantees both reliability and optimal efficiency. Opt for our highly-rated compressor and experience unequaled quality at a remarkably competitive price.
Meticulously Crafted Internal Structure - Frontside
Intricately Designed Internal Structure - Backside
Advanced Working Principle
In the realm of optimal air compression, the energy required for single-stage compression equals that for combined multi-stage compression. However, practical scenarios introduce inefficiencies such as coupling power losses, bearing friction, and the cooling effect of liquid viscosity. By carefully minimizing the compression ratio at each stage, these inefficiencies are significantly curtailed, resulting in enhanced efficiency and a lower total power demand for multi-stage compression over single-stage compression.
Our state-of-the-art two-stage screw air compressor boasts an advanced dual-stage rotary screw system. Each stage comprises an active and a passive screw. The active screw, driven by an external power source, propels the passive screw. The first stage includes a low-pressure screw group, while the second stage integrates a high-pressure screw group. Each screw is enveloped by a sealing air film to ensure optimal compression. As the screws rotate, they proficiently manage the gas through three distinct phases: suction, pressurization, and discharge.
First Stage Compression: Initially, the low-pressure screw group compresses the gas. When the gas enters the screw compression chamber through the suction valve, it undergoes gradual compression, driven by high-speed screw rotors. This process directs the gas towards the secondary compression stage, enhancing efficiency.
Second Stage Compression: Here, the gas is compressed within a more confined screw space, experiencing elevated temperatures and pressures. This phase concludes with the exhaust valve opening, allowing the high-pressure gas to be efficiently expelled from the system.
Natural air, purified through an air filter, enters the first compression stage where it mixes with a small quantity of lubricating oil in the compression chamber. This mixture is compressed to an intermediate pressure. As the compressed gas traverses the cooling channel, it encounters significant oil mist, substantially lowering its temperature. This cooled, compressed gas then undergoes further compression in the second stage rotor, reaching the final exhaust pressure, and is ultimately expelled through the exhaust valve, completing the highly efficient compression process.
1) Superior Efficiency of PM Motor:Our permanent magnet motor is engineered to deliver expansive constant torque and operates within a broad weak magnetic range. This design translates to an astonishing 20-30% higher efficiency compared to standard motors. It maintains peak efficiency across all frequency ranges, ensuring unwavering top-tier performance.
2) Maintenance-Free Motor Design:Ingeniously designed with no internal bearings, our permanent magnet motor eradicates the need for costly bearing maintenance and replacements, offering you an unmatched, hassle-free experience.
3) Advanced Integrated Frequency Converter: Outfitted with China's premier frequency system, this converter delivers precise and extensive speed regulation. It adapts seamlessly to actual gas demand, optimizing energy use and maximizing operational efficiency.
4) Elimination of Transmission Loss: Our pioneering integrated shaft design directly connects the permanent magnet motor to the compressor. This compact and efficient structure, free from couplings and other transmission components, ensures 100% transmission efficiency.
5) Variable Frequency and Soft Start Capabilities:These cutting-edge features significantly reduce the impact on power grid equipment, protecting electrical components from potential damage and enhancing system longevity.
6) Enhanced Energy Efficiency: Featuring a frequency conversion range of 25% to 100%-far superior to the typical 50% to 100%-our system achieves over 30% energy savings compared to fixed-speed compressors. It also outperforms standard variable frequency compressors by approximately 5%, with even greater savings under variable gas consumption conditions.
7) Unique Two-Stage Compression Air End:Our sophisticated two-stage compression screw machine incorporates both the first and second-stage rotors within a single housing. Driven directly by gears, each rotor achieves optimal linear speed, significantly boosting compression efficiency.
8) Innovative Internal Spray Curtain Cooling:This high-efficiency cooling technique dramatically reduces compressed air temperatures through near-isothermal compression. It minimizes pressure loss and enhances overall system efficiency.
9) Minimized Internal Leakage:Utilizing two-stage compression, we reduce the compression ratio for each stage. This method minimizes internal leakage from high to low-pressure ends, improving volume efficiency considerably.
10) Significant Noise Reduction:The two-stage compression process reduces the compression ratio, leading to a substantial decrease in operational noise, especially during unloading phases.
11) Effortless Maintenance and Service:Aside from the screw air end, the systems and structures of our two-stage compressor unit are similar to those of single-stage units, making maintenance straightforward and user-friendly.
| 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 eliminating the middleman, we at Sanzhi (Henan) Compressor Co., Ltd. proudly offer industry-leading ex-factory prices. This ensures you obtain a substantial market edge with our competitively priced, premium Efficient Sanzhi Twin-Stage Air Compressor Stationary 110KW.
2. Direct Transactions
Experience the dependability of factory-direct products, guaranteeing superior quality and cost-efficiency for all your air compression needs with our Efficient Sanzhi Twin-Stage Air Compressor Stationary 110KW.
3. Tailored OEM & ODM Services
Leverage the exceptional production and management capabilities of Sanzhi (Henan) Compressor Co., Ltd. to receive customized OEM/ODM services that perfectly align with your unique requirements.
4. Bespoke Customization Services
We welcome orders for non-standard and export specifications, catering to various voltage, power, and pressure needs. Connect with us to fulfill your specific demands with our Efficient Sanzhi Twin-Stage Air Compressor Stationary 110KW.
5. Small Order Acceptance
Evaluate the outstanding performance of our products with a small trial order, ensuring they meet and exceed your quality expectations.
6. Swift Delivery
Receive top-tier products with our commitment to timely and reliable delivery, ensuring your operational efficiency remains uninterrupted.
7. Comprehensive Authorization
Strengthen your sales strategy with our full range of authorization certificates, empowering you to effectively represent and sell SANZHI brand products with confidence.
Sanzhi (Henan) Compressor Co., Ltd. stands as a distinguished pioneer in the design and manufacture of top-tier screw air compressors and vacuum pumps, with over a decade of industry excellence. Our expansive product lineup encompasses normal and low-pressure screw air compressors, permanent magnet frequency conversion models, twin-stage compression screw air compressors, specialized units for laser cutting, and adaptable single-tank and double-tank mobile screw air compressors (available in both electric and diesel variants), as well as screw vacuum pumps. Discover our superior engineering with a product range meticulously crafted to cater to diverse industrial demands.
Our production prowess is enhanced by cutting-edge, lean multi-air compressor assembly lines that ensure unmatched operational efficiency. A team of over 50 dedicated professionals consistently refines our management systems, including ERP, to drastically reduce lead times and guarantee the swift delivery of premium products.
Our unwavering commitment to quality is demonstrated by our ISO9001 certification. We strictly adhere to rigorous quality management standards and implement comprehensive quality control measures. Each machine undergoes meticulous material, production, and pre-delivery inspections to uphold the highest quality standards.
We excel in delivering outstanding customer service, beginning with expert pre-sales guidance that ensures clients find the perfect air equipment tailored to their facility needs, with high levels of customization in appearance and configuration. We specialize in OEM solutions to meet unique dealer requirements. Our after-sales team, comprising skilled sales and service professionals, ensures prompt and effective responses to all customer queries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., our steadfast commitment to providing reliable and superior products is resolute. We focus on fostering long-lasting relationships with our customers through prompt delivery, high-quality machines, and competitive pricing. Trust us for exceptional compressed air solutions that fulfill your every requirement.
Situated in Xinzheng City, Henan Province, China, our factory is conveniently accessible. We offer complimentary pick-up services from Xinzheng International Airport, located just 30 kilometers away-approximately a one-hour journey to our facility. We warmly invite you to visit us and see our operations firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a veteran manufacturer of screw air compressors, with over a decade of industry experience.
Q2. How do you control quality?
A: 1. Rigorous inspection of raw materials.
2. Strict control of installation procedures.
3. Each machine undergoes a minimum of 5 hours of continuous testing before dispatch to guarantee optimal performance.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min)
2. Desired working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency specifications of your country (V/Hz)
4. Any additional accessories needed, such as air tanks, filters, or air dryers.
Provide this information, and we will engineer the perfect solution tailored for you!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage air compressor?
A: Sanzhi offers a wide range of voltage options including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, with customization available to meet your specific requirements.
Q6. How long is the delivery time?
A: For our standard voltage models, take advantage of our swift delivery within a mere 15 working days from order confirmation. For non-standard models, our dedicated and expert sales team is at your service for personalized assistance.
Q7. What's the payment term?
A: Secure your order with a 30% T/T deposit, followed by a 40% T/T payment before shipment. The remaining 30% T/T is due upon presentation of the B/L copy. We accept payments in both USD and RMB for your utmost convenience.
Q8. How about your warranty?
A: Experience unparalleled peace of mind with our extensive warranty: one year for the entire machine and an additional two-year warranty exclusively for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: The initial maintenance is required after 500 hours of operation, with subsequent maintenance every 2000-3000 hours. Always consider the actual working environment to maximize performance.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines are meticulously engineered to perform efficiently in high-temperature environments, with a robust working temperature range from -20° to 45° (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our professional design team. Bring your innovative ideas to life with our expertise.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast an impressive lifespan exceeding 10 years, ensuring long-term reliability and performance.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we supply essential spare parts to ensure the seamless and uninterrupted operation of your machines.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including detailed online installation and commissioning instructions. Additionally, our engineers are available for on-site training and installation assistance to ensure optimal performance.
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