Discover the extraordinary Sanzhi 200KW 272HP Screw Compressor, a masterpiece delivered by a leading supplier from China. Revel in our outstanding factory prices on this cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This industrial marvel is engineered with premium Centrifugal Fans, ensuring unmatched energy efficiency and exceptional performance. Designed as a stationary unit, it stands as the pinnacle of reliable industrial solutions.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression setting, you would expect the power for single-stage compression to match the combined power for multiple stages. However, the reality of operational demands introduces higher power necessities due to influences like transmission power loss, bearing friction, and cooling effects from liquid viscosity. By skillfully reducing the compression ratio at each stage, multi-stage compression can significantly diminish power requirements compared to single-stage systems. This approach not only enhances operational efficiency but also markedly reduces excessive energy consumption.
The sophisticated two-stage screw air compressor boasts a dual rotary screw mechanism. Each stage integrates an active screw and its counterpart, the passive screw, with the active screw energizing the passive screw through a dedicated power transfer system. The first stage features a low-pressure screw assembly, while the second stage is fortified with a high-pressure screw assembly. Enveloping air films provide sealing for each screw, facilitating a seamless compression process through a well-orchestrated sequence of suction, pressurization, and exhaust.
First stage compression: In the commencement stage of the two-stage screw air compressor, a low-pressure screw assembly is deployed. The gas is drawn into the screw compression chamber via the meticulously designed suction valve, undergoing compression as the rotor whirls at high velocity. This preliminary compressed gas is then transferred to the second stage for further advancement in compression.
Second stage compression: As the process advances to the second stage, the gas enters a more constricted screw space, encountering increased pressures and heightened temperatures. The proficiently timed opening of the exhaust valve ensures the expulsion of high-pressure gases from the system, thus completing the intricate compression process.
Initially, natural air is filtered and blends with a precise amount of lubricating oil within the compression chamber. This mixture is compressed to an intermediate pressure and substantially cooled through interaction with oil mist in the cooling channel. The cooled gas then progresses to the second-stage rotor, where it undergoes secondary compression to reach the ultimate exhaust pressure. This comprehensive air compression cycle concludes as the meticulously compressed gas is released through the exhaust valve, marking the completion of the entire process.
| 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. |
The centrifugal fan, epitomizing the pinnacle of German engineering prowess, harnesses a high-speed rotating impeller to masterfully manipulate airflow. This avant-garde design ushers air into the impeller with axial precision, dramatically heightening motor cooling efficiency. In contrast to conventional air-cooled fans, this advanced mechanism catalyzes a swifter temperature decline, paving the path for flawless, continuous compressor functionality while endowing the compressor with a notably extended lifespan.
1) High efficiency of PM motor:Our advanced permanent magnet (PM) motor showcases an extended torque plateau and a broadened weak magnetic spectrum. Its efficiency surpasses that of standard motors by an outstanding 20-30%. Crucially, the PM motor sustains superior efficiency even when operating outside its rated frequency, ensuring peak performance in all scenarios.
2) Motor maintenance-free:The state-of-the-art permanent magnet motor is ingeniously crafted without internal bearings, thereby nullifying the usual expenses related to bearing maintenance and replacement. This thoughtful design substantially trims down overall maintenance costs.
3) Integrated frequency converter: Featuring China's foremost frequency system, our compressor delivers a broad spectrum of speed regulation and unmatched precision. This system adeptly adapts to real-time gas demand, providing remarkable energy conservation and optimizing operational excellence.
4) No transmission loss: Boasting a direct shaft connection design integrated with the embedded permanent magnet motor, the compressor offers a streamlined, compact profile. This innovation eliminates the necessity for couplings and other transmission elements, attaining flawless 100% transmission efficiency.
5) Variable frequency start and soft startof the motor significantly mitigates impact on power grid equipment, shielding electrical systems from harm and bolstering the system's overall durability.
6) Reduced energy consumption: Our system, with its dynamic frequency conversion range from a remarkable 25% to 100% (surpassing the usual 50% to 100%), delivers over 30% energy savings compared to fixed-speed compressors. Moreover, it furnishes approximately 5% additional energy savings than standard variable frequency compressors, offering exceptional benefits for systems with variable gas consumption.
7) Unique two-stage compression air end:With a distinctive design, the two-stage compression screw machine ingeniously integrates both the first and second-stage compression rotors within a singular casing. Each rotor is individually gear-driven to achieve optimal linear speed, thereby maximizing compression efficiency.
8) Internal spray curtain cooling method: Our highly efficient internal spray curtain cooling method offers cutting-edge cooling effects, significantly reducing compressed air temperatures. This achieves near-isothermal compression, minimizes pressure loss between stages, lowers the compression ratio, and enhances overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system markedly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, and augmenting volumetric efficiency.
10) Noise reduction:The decreased compression ratio in the two-stage system effectively reduces noise levels, particularly during unloading operations, ensuring a quieter, more tranquil working environment.
11) Easy maintenance and service:Despite its pioneering two-stage compression architecture, our system's other components and structures retain their inherent similarity to single-stage compressors, ensuring easy maintenance and user-friendly service.
12) Door Panels are Removable:The unit's casing, constructed from noise-attenuating metal plates and lined with high-density sound-absorbing material, adheres to international noise standards. The door panel can be opened and detached, providing 270-degree thorough access, facilitating maintenance personnel's entry into the unit, thereby enhancing service efficiency.
1. Competitive Pricing Advantage
We present our esteemed customers with incredibly attractive ex-factory prices, guaranteeing they sustain a formidable competitive edge in the marketplace.
2. Direct Transactions
Our products are supplied directly from our factory, allowing us to offer solutions that are both highly cost-effective and efficient.
3. Comprehensive OEM & ODM Services
Leveraging our robust production and management capabilities, we provide exceptional OEM/ODM services finely crafted to meet your specific requirements, ensuring your satisfaction.
4. Personalized Customization Service
We welcome non-standard export orders and offer bespoke customizations in voltage, power, pressure, etc. Reach out to us to discuss your distinctive needs and preferences.
5. Small Order Acceptance
Do not hesitate to place a small trial order to witness firsthand the outstanding quality and performance of our products.
6. Rapid Delivery
Benefit from the timely delivery of our superior quality products, ensuring your production schedules are never disrupted or delayed.
7. Full Authorization
For our valued distributors, we provide comprehensive authorization certificates, empowering you to confidently market and promote our prestigious SANZHI brand products.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd stands proudly at the apex of innovation in the air compression industry, drawing upon over a decade of unmatched expertise. As a preeminent manufacturer, we engineer a vast selection of pioneering products, including screw air compressors and screw vacuum pumps. Our extensive lineup features both standard and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and durable two-stage compression units. Moreover, we specialize in distinctively designed screw air compressors tailored for laser cutting applications, and offer versatile single-tank and double-tank mobile screw air compressors. Our product suite extends to both electric and diesel mobile screw air compressors, as well as cutting-edge screw vacuum pumps, all epitomizing precision and dependability.
Within our production operations, modern assembly lines are vital to sustaining outstanding efficiency. With the backing of a devoted team of over 50 highly skilled employees, we continuously enhance our management systems, like ERP, to minimize lead times and assure the swift dispatch of our exceptional products.
Management serves as a bedrock of our superiority, with our factory proudly achieving the distinguished ISO9001 quality management system certification. We maintain rigorous quality benchmarks by enforcing stringent control protocols. Each machine undergoes exhaustive inspections, covering material verifications, production evaluations, and extensive pre-delivery assessments. This scrupulous approach ensures that only machines of the highest quality reach our valued customers.
In the sphere of customer service, our expertise radiates in pre-sales consultation, where we provide expert advice to assist clients in choosing the ideal air equipment to meet their specific needs. We excel in customization, adapting both the appearance and configuration to satisfy individual preferences, and offer OEM services to meet particular dealer requirements. Our dedicated sales and service team is devoted to delivering prompt and effective responses, ensuring uninterrupted after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our steadfast commitment is to deliver superior, reliable products while fostering lasting customer relationships. We blend rapid delivery with outstanding product quality and competitive pricing, establishing ourselves as your dependable partner for comprehensive compressed air solutions.
Our factory's strategic location in Xinzheng City, Henan Province, China, enhances convenience for our clients. We offer complimentary transportation from Xinzheng International Airport, positioned just 30 kilometers away, roughly an hour's drive. We warmly invite you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, fortified by more than ten years of expertise.
Q2. How do you control quality?
A: 1. We perform rigorous inspections on all raw materials to ensure they meet our superior quality standards.
2. Our installation procedures are meticulously overseen to uphold excellence.
3. Each machine is subjected to a minimum of 5 continuous hours of testing before it departs our facility to ensure 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 for your country (V/Hz)
4. Any additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will create a bespoke solution tailored to your requirements!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What is the available voltage air compressor?
A: Discover the versatility of Sanzhi air compressors, available in an extensive range of voltage options such as 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Additionally, we offer tailored customization to fulfill your specific requirements, ensuring you receive the perfect solution for your operational needs.
Q6. How long is the delivery time?
A: For standard voltage specifications, your order will be swiftly processed with remarkable efficiency, taking just 15 working days from order confirmation. For non-standard orders, please contact our dedicated sales team, who will provide you with bespoke timelines perfectly tailored to your unique requirements, ensuring a seamless experience.
Q7. What's the payment term?
A: We have devised our payment terms to facilitate smooth and hassle-free transactions: an initial 30% T/T payment upon order, followed by 40% T/T before shipment, and the final 30% T/T upon receipt of the B/L copy. We accept payments in both USD and RMB, offering exceptional flexibility for our esteemed clients.
Q8. How about your warranty?
A: Enjoy peace of mind with our comprehensive one-year warranty covering the entire machine, plus an extended two-year warranty specifically for the screw air compressor, excluding consumable spare parts, ensuring superior protection and service for your investment.
Q9. What about the maintenance?
A: To preserve optimal performance, initial maintenance should occur after the first 500 operational hours. Subsequently, maintenance is recommended every 2000-3000 hours, adaptable based on your specific working conditions, promoting longevity and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to excel in high-temperature environments, with a remarkable operating range from -20°C to 45°C (-4°F to 113°F), ensuring outstanding performance even in demanding conditions.
Q11. Do you offer OEM service?
A: Yes, we are delighted to offer professional OEM and ODM services, empowered by our expert design team. We warmly welcome custom orders and are devoted to actualizing your unique visions, bringing them to vibrant reality.
Q12. How long could your air compressor be used?
A: Our air compressors are constructed for enduring strength and reliability, typically boasting an impressive lifespan that extends beyond 10 years, guaranteeing long-lasting performance for your operations.
Q13. Will you provide some spare parts for the machines?
A: Certainly, our commitment to you includes providing essential spare parts to ensure a seamless and uninterrupted experience with your machines, maintaining operational efficiency.
Q14. How about your after-sales service?
A: Experience outstanding after-sales support with our comprehensive online installation and commissioning instructions. Additionally, our skilled engineers are ready to provide training and on-site installation assistance, ensuring your utmost satisfaction and success.
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