Unveil the impressive 200KW 272HP Screw-Compressor, proudly provided by a premier supplier from China. We offer exceptional factory prices on our innovative Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This powerhouse is crafted with superior Centrifugal Fans, delivering unparalleled energy savings and remarkable efficiency. Designed in a stationary type, it is the ultimate solution for robust industrial use.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an optimal air compression scenario, the power required for single-stage compression aligns with the combined power needed for multiple stages. However, real-world operations demand higher power due to factors such as transmission power loss, friction in bearings, and cooling effects from liquid viscosity. By adeptly minimizing the compression ratio at each stage, multi-stage compression can require considerably less power than single-stage compression, thereby boosting efficiency and curtailing superfluous energy consumption.
The advanced two-stage screw air compressor is equipped with a dual rotary screw mechanism. Each stage is comprised of an active screw and a passive screw, where the active screw propels the passive screw through an external power transfer system. The first stage is designed with a low-pressure screw assembly, while the second stage is built with a high-pressure screw assembly. Sealing air films enveloping each screw facilitate the compression sequence through three distinct phases: suction, pressurization, and exhaust.
First stage compression: In the initial stage of the two-stage screw air compressor, a low-pressure screw assembly is utilized. The gas is drawn into the screw compression chamber via the suction valve, where it is compressed as the rotor spins at high velocity. This compressed gas is then forwarded to the second stage for further compression.
Second stage compression: At the second stage, the gas enters a more confined screw space, experiencing elevated pressures and temperatures. The exhaust valve subsequently opens, expelling the high-pressure gases from the system, thereby completing the compression process.
Initially, natural air flows through the air filter and combines with a trace of lubricating oil within the compression chamber. This blend is compressed to an intermediate pressure and then significantly cooled via contact with oil mist within the cooling channel. The cooled gas enters the second-stage rotor, where it undergoes secondary compression to achieve the final exhaust pressure. This entire cycle concludes as the compressed gas is released through the exhaust valve, culminating the comprehensive air compression cycle.
| 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, a marvel of German engineering, utilizes a high-speed rotating impeller to dynamically accelerate and decelerate air. This cutting-edge design allows for axial airflow entry into the impeller, greatly boosting motor cooling efficiency. When compared with traditional air-cooled fans, this mechanism achieves faster temperature reduction, ensuring seamless, uninterrupted compressor operation and prolonging the compressor's lifespan.
1) High efficiency of PM motor:Our state-of-the-art permanent magnet (PM) motor offers an extended constant torque range and an expansive weak magnetic range. Its efficiency outshines regular motors by an impressive 20-30%. Notably, the PM motor excels in maintaining its high efficiency even when operating outside the rated frequency, guaranteeing optimal performance under any condition.
2) Motor maintenance-free:The innovative permanent magnet motor is crafted without internal bearings, eliminating the typical costs associated with motor bearing maintenance and replacement. This design choice significantly cuts down on overall maintenance expenses.
3) Integrated frequency converter: Incorporating China's premier frequency system, our compressor boasts a wide-ranging speed regulation and exceptional precision. The system dynamically adjusts to the actual gas demand, delivering extraordinary energy savings and optimizing operational efficiency.
4) No transmission loss: With a direct shaft connection structure featuring the embedded permanent magnet motor, the compressor offers a sleek, compact design. This innovation removes the need for couplings and other transmission components, achieving perfect 100% transmission efficiency.
5) Variable frequency start and soft startof the motor dramatically reduces impact on power grid equipment, safeguarding electrical systems from damage and enhancing the overall longevity of the system.
6) Reduced energy consumption: Our system, with its frequency conversion range from an impressive 25% to 100% (compared to the conventional 50% to 100%), achieves over 30% energy savings compared to fixed-speed compressors. Additionally, it offers approximately 5% more energy savings than typical variable frequency compressors, providing even greater benefits for systems with fluctuating gas consumption.
7) Unique two-stage compression air end:Boasting a one-of-a-kind design, the two-stage compression screw machine ingeniously combines both the first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven to reach optimal linear speed, thereby maximizing compression efficiency.
8) Internal spray curtain cooling method: Our high-efficiency internal spray curtain cooling technique offers advanced cooling effects, significantly lowering compressed air temperatures. This achieves a near-isothermal compression, reduces pressure loss between stages, decreases the compression ratio, and enhances overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system significantly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, and improving volumetric efficiency.
10) Noise reduction:The reduced compression ratio in the two-stage system also markedly decreases noise levels, particularly during unloading operations, ensuring a quieter and more serene working environment.
11) Easy maintenance and service:Despite its cutting-edge two-stage compression design, our system's other components and structures retain their fundamental similarity to single-stage compressors, ensuring ease of maintenance and user-friendly service.
12) Door Panels are Removable:The unit's casing, crafted from noise-reducing metal plates and lined with high-density sound-absorbing material, complies with international noise standards. The door panel can be opened and detached, providing a 270-degree comprehensive access, facilitating maintenance personnel's entry into the unit, thereby enhancing service efficiency.
1. Competitive Pricing Advantage
We offer customers incredibly attractive ex-factory prices, ensuring they maintain a strong competitive edge in the market.
2. Direct Transactions
Our products are directly supplied from our factory, enabling us to deliver highly cost-effective solutions.
3. Comprehensive OEM & ODM Services
With our robust production and management capabilities, we offer exceptional OEM/ODM services that are finely tuned to meet your specific requirements.
4. Personalized Customization Service
We welcome non-standard export orders and offer customizations in voltage, power, pressure, etc. Contact us to discuss your unique needs.
5. Small Order Acceptance
Feel free to place a small trial order to experience firsthand the outstanding quality of our products.
6. Rapid Delivery
Enjoy the benefit of timely delivery of our superior quality products, ensuring your schedules are never disrupted.
7. Full Authorization
For our esteemed distributors, we provide comprehensive authorization certificates, empowering you to confidently market our SANZHI brand products.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd stands at the forefront of innovation in the air compression industry, proudly offering over ten years of unparalleled expertise. As a leading manufacturer, we create a diverse array of cutting-edge products, including screw air compressors and screw vacuum pumps. Our extensive range features both normal and low-pressure screw air compressors, advanced permanent magnet frequency conversion models, and robust two-stage compression units. We also specialize in uniquely designed screw air compressors for laser cutting applications, as well as versatile single-tank and double-tank mobile screw air compressors. Our offerings extend to electric and diesel mobile screw air compressors and state-of-the-art screw vacuum pumps, embodying precision and reliability.
In our production processes, modern assembly lines are integral to our ability to maintain exceptional efficiency. Supported by our committed team of over 50 skilled employees, we continually refine our management systems, such as ERP, to reduce lead times and ensure the rapid dispatch of our superior products.
Management is a cornerstone of our excellence, with our factory earning the prestigious ISO9001 quality management system certification. We uphold rigorous quality standards by implementing stringent control measures. Every machine is subject to thorough inspections, encompassing material verifications, production assessments, and comprehensive pre-delivery evaluations. This meticulous process guarantees that only the highest quality machines reach our customers.
In the realm of customer service, our expertise shines through in pre-sales consultation, where we offer expert guidance to assist clients in selecting the perfect air equipment to meet their precise demands. We excel in customization, tailoring both appearance and configuration to suit individual preferences, and extend OEM services to cater to specific dealer requirements. Our diligent sales and service team is committed to delivering swift and effective responses, ensuring seamless after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering commitment is to provide superior, consistent products while nurturing enduring customer partnerships. We combine swift delivery with exceptional product quality and competitive pricing, establishing ourselves as your trusted partner for all-encompassing 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, situated a mere 30 kilometers away, approximately an hour's drive. We warmly extend an invitation for you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an experienced manufacturer with a specialization in screw air compressors, backed by over a decade of expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials to ensure superior quality.
2. Our installation procedures are meticulously managed to maintain excellence.
3. Every machine undergoes a minimum of 5 continuous hours of testing before leaving our facility to guarantee peak 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. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will craft a bespoke solution tailored to your needs!
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: Sanzhi air compressors come in a variety of voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We also offer customization to meet your exact requirements.
Q6. How long is the delivery time?
A: For standard voltage specifications, your order will be processed with remarkable efficiency, taking just 15 working days after confirmation. For orders with non-standard specifications, kindly reach out to our dedicated sales team, who will provide you with detailed timelines perfectly tailored to your needs.
Q7. What's the payment term?
A: We have structured our payment terms to ensure smooth transactions: a 30% T/T payment is required upfront, followed by an additional 40% T/T before shipment, with the final 30% T/T to be completed upon receipt of the B/L copy. We accept payments in both USD and RMB, offering flexibility for our valued clients.
Q8. How about your warranty?
A: We are pleased to offer a comprehensive one-year warranty that covers the entire machine, alongside an extended two-year warranty dedicated specifically to the screw air compressor, with the exception of consumable spare parts, ensuring you receive superior protection.
Q9. What about the maintenance?
A: To maintain optimal performance, initial maintenance should be conducted after the first 500 hours of operation. Thereafter, maintenance is necessary every 2000-3000 hours, adjusted according to the specific conditions of your working environment to ensure longevity and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are expertly engineered to thrive in high-temperature environments, designed to operate seamlessly within a working temperature range of -20°C to 45°C (-4°F to 113°F), ensuring robust performance even under challenging conditions.
Q11. Do you offer OEM service?
A: Yes, we proudly extend our professional expertise to offer both OEM and ODM services, backed by our experienced design team. We warmly welcome your custom orders and are dedicated to bringing your unique concepts to life.
Q12. How long could your air compressor be used?
A: Our air compressors are built to last, typically boasting an impressive lifespan that exceeds 10 years, ensuring durable and reliable performance for your operations.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to supporting you by providing necessary spare parts for your machines, ensuring an uninterrupted experience.
Q14. How about your after-sales service?
A: We deliver exceptional after-sales support, encompassing comprehensive online instructions for installation and commissioning. Moreover, our skilled engineers are readily available to provide training and installation assistance, ensuring your complete satisfaction.
){kind=link}