Discover the unparalleled 200KW 272HP Screw-Compressor, crafted by Sanzhi (Henan) Compressor Co., Ltd., your premier supplier from China. We proudly offer factory-direct pricing on our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. This industrial marvel is equipped with state-of-the-art Centrifugal Fans, ensuring extraordinary energy savings and superior efficiency. Embrace the pinnacle of stationary design, tailored for heavy-duty industrial applications, and experience a revolution in air compression technology engineered with advanced German precision.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an ideal air compression process, the power needed for single-stage pressure transmission equals the collective power required for multi-stage compression. However, real-world scenarios entail higher power demands due to transmission power loss, bearing friction, and liquid viscosity cooling effects. By minimizing the compression ratio at each stage, the total power required for multi-stage compression can be significantly lower than that of single-stage compression, enhancing efficiency and reducing unnecessary power usage.
The two-stage screw air compressor features a dual rotary screw system. Each stage includes an active and a passive screw, where the active screw drives the passive screw through an external power transmission mechanism. The first stage employs a low-pressure screw group, and the second stage utilizes a high-pressure screw group. Sealing air films around each screw facilitate the compression process through three phases: suction, pressurization, and exhaust.
First stage compression: The initial stage in the two-stage screw air compressor utilizes a low-pressure screw group. Here, gas enters the screw compression chamber via the suction valve and is compressed as the screw rotor spins at high speed. This gas is then transferred to the second stage for further compression.
Second stage compression: In the second stage, the gas enters a more confined screw space, where it is subjected to higher pressures and temperatures. The exhaust valve opens to expel the high-pressure gases from the system, finalizing the compression process.
Natural air first enters through the air filter and mixes with a small amount of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure and then cooled significantly via contact with oil mist in the cooling channel. The cooled gas enters the second-stage rotor, undergoing a secondary compression to the final exhaust pressure. The entire process culminates as the compressed gas is expelled through the exhaust valve, completing the 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, crafted with advanced German engineering, features a high-speed rotating impeller that dynamically accelerates and decelerates air. This cutting-edge design enables axial air entry into the impeller, significantly improving motor cooling efficiency. Unlike conventional air-cooled fans, this mechanism facilitates faster temperature reduction, ensuring continuous, uninterrupted compressor operation and extending the compressor's service life.
1) High Efficiency of PM Motor:The permanent magnet (PM) motor offers an extended constant torque range and a broader weak magnetic range. Its efficiency surpasses regular motors by 20-30%. Remarkably, the PM motor maintains its high efficiency even when operating outside the rated frequency, ensuring optimal performance under varying conditions.
2) Maintenance-Free Motor:The permanent magnet motor's design excludes internal bearings, eliminating costs associated with motor bearing maintenance and replacement. This significantly reduces overall maintenance expenses.
3) Integrated Frequency Converter:Our compressor incorporates China's top-tier frequency system, featuring a wide speed regulation range and exceptional precision. The system adapts to actual gas demand, offering remarkable energy savings and optimizing operational efficiency.
4) No Transmission Loss:Featuring a direct shaft connection structure with the embedded permanent magnet motor, this design ensures a compact form factor. It eliminates the need for couplings and other transmission components, achieving 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:The motor's variable frequency start and soft start significantly reduce impact on power grid equipment, preventing damage to electrical systems and enhancing overall system longevity.
6) Reduced Energy Consumption:With a frequency conversion range spanning from 25% to 100% (compared to the standard 50% to 100%), our system offers over 30% energy savings compared to fixed-speed compressors. Additionally, it provides approximately 5% more energy savings than typical variable frequency compressors, making it highly beneficial for systems with fluctuating gas consumption.
7) Unique Two-Stage Compression Air End:The two-stage compression screw machine features a distinctive design, integrating both first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven to achieve optimal linear speed, maximizing compression efficiency.
8) Internal Spray Curtain Cooling Method:Utilizing a high-efficiency internal spray curtain cooling technique, this method provides superior cooling effects, significantly lowering compressed air temperatures. This results in near-isothermal compression, reduces pressure loss between stages, lowers the compression ratio, and enhances overall compression efficiency.
9) Reduced Internal Leakage:The two-stage compression system lowers the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, thereby improving volumetric efficiency.
10) Noise Reduction:The reduced compression ratio in the two-stage system significantly diminishes noise levels, particularly during unloading operations, ensuring a quieter working environment.
11) Easy Maintenance and Service:Despite the advanced two-stage compression design, the system's other components and structures remain fundamentally similar to those of single-stage compressors, ensuring ease of maintenance and user convenience.
1. Competitive Pricing Advantage
We offer our customers unbeatable ex-factory prices, ensuring you stay ahead of the competition with cost-effective solutions.
2. Direct Transactions
Every product is supplied straight from our factory, allowing us to provide you with unparalleled value and savings.
3. Comprehensive OEM & ODM Services
Leveraging our extensive production and management expertise, we deliver top-notch OEM/ODM services precisely tailored to meet your exact needs.
4. Personalized Customization Service
We welcome non-standard and export orders, offering customizations in voltage, power, pressure, and more. Share your specific requirements with us for a truly personalized solution.
5. Small Order Acceptance
Initiate a small trial order to experience the exceptional quality and reliability of our products first-hand.
6. Rapid Delivery
Benefit from our swift and reliable delivery services, ensuring you receive high-quality products on time, every time.
7. Full Authorization
As a distributor, receive full authorization certificates, empowering you to market and sell our prestigious SANZHI brand products with absolute confidence.
Sanzhi (Henan) Compressor Co., Ltd is a distinguished manufacturer of screw air compressors and screw vacuum pumps, with over ten years of industry expertise. Our extensive product range includes cutting-edge screw air compressors and vacuum pumps, featuring normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion models, two-stage compression units, laser cutting screw air compressors, single-tank and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and advanced screw vacuum pumps.
In production, our state-of-the-art assembly lines enable highly efficient manufacturing processes. With a dedicated team of over 50 employees, we continuously enhance management systems such as ERP, significantly reducing lead times and ensuring the rapid delivery of premium-quality products.
In management, our factory is proud to hold ISO9001 quality management system certification. We adhere to the highest quality standards, implementing stringent quality control procedures. Every machine undergoes thorough inspections, including material checks, production assessments, and pre-delivery evaluations, ensuring that only the finest products depart from our facility.
In customer service, we excel in pre-sales consultation, providing expert guidance to help customers select the perfect air equipment tailored to their specific needs. Our high degree of customization covers both appearance and configuration, and we offer OEM services to meet unique dealer requirements. For after-sales support, our professional sales and service team guarantees prompt and efficient customer responses.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering superior, stable products and fostering long-term customer relationships. With efficient delivery, top-quality machines, and competitive pricing, we are your dependable partner for comprehensive compressed air solutions.
Our factory is conveniently situated in Xinzheng City, Henan Province, China. We offer complimentary pick-up services from Xinzheng International Airport, just 30 kilometers away-about an hour's drive. We warmly welcome you to visit our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with more than a decade of expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections of all raw materials.
2. Installation procedures are meticulously controlled.
3. Each machine undergoes a minimum of 5 hours of continuous testing before leaving our factory 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. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will design a tailored solution for you!
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 are available in various voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage orders, your request will be efficiently processed within a swift 15 working days after confirmation. For orders with non-standard specifications, kindly reach out to our dedicated sales team for detailed timelines and personalized assistance.
Q7. What's the payment term?
A: Our payment terms are structured as follows: We require a 30% T/T upfront deposit, followed by an additional 40% T/T before shipment. The final 30% T/T is due upon receipt of the B/L copy. Payments can be conveniently made in both USD and RMB.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty on the entire machine, coupled with an extended two-year warranty specifically for the screw air compressor, excluding consumable spare parts. Our commitment is to ensure your peace of mind.
Q9. What about the maintenance?
A: Initial maintenance is crucial and should be performed after the first 500 hours of operation. Subsequent maintenance is recommended every 2000 to 3000 hours, adaptable to the actual working environment to maintain optimal performance.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines are meticulously engineered to operate efficiently in high-temperature environments, with an impressive working temperature range from -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Yes, we are proud to offer both OEM and ODM services, expertly facilitated by our professional design team. We welcome your custom orders and are eager to bring your unique specifications to life.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast a lifespan that exceeds 10 years, ensuring long-term reliability and performance.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we will provide essential spare parts to ensure the optimal functionality and longevity of your machines.
Q14. How about your after-sales service?
A: We offer a robust and comprehensive after-sales support system, which includes detailed online instructions for installation and commissioning. Additionally, our skilled engineers are available for training and on-site installation assistance to ensure seamless operation.
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