Introducing the revolutionary 200KW 272HP Screw-Compressor from Sanzhi (Henan) Compressor Co., Ltd., a distinguished supplier from China. Elevate your industrial operations with our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, available at unbeatable factory prices. This remarkable machine integrates cutting-edge Centrifugal Fan Technology, ensuring superior energy-saving capabilities and exceptional high efficiency. Designed with a stationary type configuration, it is ideal for various industrial applications, delivering relentless performance and reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of ideal air compression, a singular-stage transmission would demand power equivalent to all cumulative power needed for a multi-stage process. Yet, reality dictates greater power consumption due to inevitable factors like transmission power loss, bearing friction, and the cooling effects of liquid viscosity. By strategically diminishing the compression ratio for each stage, the overall power requirement for multi-stage compression can be significantly lower, surpassing single-stage efficiency and curtailing superfluous energy consumption.
The cutting-edge two-stage screw air compressor is equipped with a sophisticated dual rotary screw system. Each compression stage comprises an active and a passive screw, the active one seamlessly driving the passive through a refined external power transmission mechanism. Initiating with a low-pressure screw group in the first stage, it gracefully transitions to a high-pressure screw group in the second. The formation of sealing air films around every screw is pivotal, orchestrating the compression journey through three integral phases: suction, pressurization, and exhaust.
First stage compression: This pivotal initial stage in the two-stage screw air compressor is empowered by a low-pressure screw group. Here, the gas is ingeniously channeled into the screw compression chamber through the suction valve, where it undergoes swift compression as the screw rotor whirls with high velocity. This compressed gas is then seamlessly passed on to the subsequent stage for further enhancement.
Second stage compression: As the gas advances into the second stage, it encounters a more compact screw space, where it is subjected to intensified pressures and soaring temperatures. The strategic opening of the exhaust valve facilitates the expulsion of high-pressure gases, culminating in the completion of the compression process.
The journey of natural air commences as it gracefully enters through the air filter, harmoniously blending with a trace of lubricating oil within the compression chamber. As this fusion is compressed to interstage pressure, it undergoes significant cooling by mingling with oil mist in the cooling channel. Subsequently, the cooled mixture enters the second-stage rotor, embarking on a secondary compression voyage to attain the final exhaust pressure. The grand finale of this cycle is marked by the compressed gas being elegantly expelled through the exhaust valve, completing the intricate air compression cycle with finesse.
| 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, uses a high-speed rotating impeller to dynamically manage air flow, both accelerating and decelerating it with precision. This avant-garde design allows for axial air intake into the impeller, greatly boosting motor cooling efficiency. In comparison to standard air-cooled fans, this technology facilitates swifter temperature reductions, ensuring the compressor operates continuously without interruptions, thereby extending its lifespan.
1) High efficiency of PM motor:The permanent magnet (PM) motor features an expanded constant torque range and a wider weak magnetic range, delivering efficiency that outstrips regular motors by an impressive 20-30%. Notably, the PM motor retains its high efficiency even when functioning away from its rated frequency, guaranteeing top-notch performance across diverse conditions.
2) Motor maintenance-free:Ingeniously crafted without internal bearings, the permanent magnet motor eradicates the costs and efforts involved in motor bearing maintenance and replacement, thereby slashing overall maintenance expenses.
3) Integrated frequency converter: Equipped with a premium frequency system from China, our compressor boasts a vast speed regulation range and superior precision. This system adeptly adapts to real-time gas demands, delivering impressive energy savings and enhancing operational efficiency.
4) No transmission loss: Designed with a direct shaft connection structure that incorporates the embedded permanent magnet motor, this compressor ensures a streamlined form. This clever design obviates the necessity for couplings and additional transmission parts, achieving a flawless 100% transmission efficiency.
5) Variable frequency start and soft startof the motor substantially minimize the impact on power grid equipment, safeguarding electrical systems from potential damage and significantly boosting the overall system's longevity.
6) Reduced energy consumption: Our system, with its frequency conversion range from an unprecedented 25% to 100% (versus the typical 50% to 100%), provides energy savings exceeding 30% compared to fixed-speed compressors. Furthermore, it offers about 5% more energy savings than standard variable frequency compressors, particularly benefiting systems with fluctuating gas demands.
7) Unique two-stage compression air end:With its exclusive design, the two-stage compression screw machine integrates primary and secondary compression rotors within a single casing. Each rotor is individually gear-driven to achieve peak linear speed, thereby maximizing compression efficiency.
8) Internal spray curtain cooling method: Employing a high-performance internal spray curtain cooling technique, this method ensures superior cooling, dramatically reducing compressed air temperatures. This approach achieves near-isothermal compression, curtails pressure loss between stages, lowers the compression ratio, and elevates overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system diminishes the compression ratio for each phase, effectively minimizing internal leakage between the high and low-pressure segments, thereby enhancing volumetric efficiency.
10) Noise reduction:Thanks to the reduced compression ratio in the two-stage system, noise levels are significantly curtailed, especially during unloading, ensuring a much quieter work environment.
11) Easy maintenance and service:Despite its sophisticated two-stage compression design, the system's remaining components and structures remain largely consistent with those of single-stage compressors, guaranteeing ease of maintenance and user convenience.
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 proudly present customers with direct ex-factory prices, guaranteeing they maintain a leading edge in the marketplace.
2. Direct Transactions
By supplying all our products directly from the factory, we are able to offer significantly more affordable solutions.
3. Comprehensive OEM & ODM Services
Our extensive production and management prowess empowers us to provide outstanding OEM/ODM services specifically crafted to suit your unique needs.
4. Personalized Customization Service
We embrace non-standard, export orders and offer customizations in voltage, power, pressure, and more. Contact us to discuss your unique specifications.
5. Small Order Acceptance
Initiate a small trial order to experience firsthand the exceptional quality of our products.
6. Rapid Delivery
Enjoy the benefit of swift and timely delivery of our premium products.
7. Full Authorization
For distributors, we offer complete authorization certificates, enabling you to confidently market our esteemed SANZHI brand products.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the manufacturing sphere, known for our expertise in creating top-tier screw air compressors and vacuum pumps. With over ten years of industry innovation, our expansive and cutting-edge product range includes normal pressure and low-pressure screw air compressors, models with permanent magnet frequency conversion, and advanced two-stage compression units. We also provide specialized solutions like screw air compressors designed for laser cutting, along with single-tank and double-tank mobile screw air compressors. For versatile applications, our electric and diesel mobile screw air compressors, along with our advanced screw vacuum pumps, showcase our dedication to excellence.
Our state-of-the-art assembly lines exemplify innovation in production, promoting unmatched efficiency in manufacturing processes. With a committed workforce exceeding 50 employees, we continuously refine management systems, like ERP, to dramatically reduce lead times, ensuring the prompt delivery of superior products.
Our management processes are backed by the prestigious ISO9001 quality management system certification. We enforce rigorous quality control, with each machine subjected to a series of meticulous inspections, including checks of materials and production assessments. This ensures that only the most premium products are dispatched from our facility, meeting the highest quality standards.
In customer service, we shine by providing exceptional pre-sales consultations, offering expert insights to aid customers in choosing the perfect air equipment. Our extensive customization options cater to both appearance and configuration, fulfilling unique dealer requirements through OEM services. Furthermore, our dedicated sales and service team ensures fast, effective after-sales support, securing customer satisfaction at every step.
At Sanzhi (Henan) Compressor Co., Ltd, we pledge to deliver unrivaled, dependable products while nurturing lasting customer partnerships. With punctual delivery, premium machines, and competitive pricing, we are your trusted ally for all-encompassing compressed air solutions.
Strategically located in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transportation services from the nearby Xinzheng International Airport, just 30 kilometers away, roughly an hour's drive. We extend a warm invitation for you to visit and experience our company firsthand!
Frequently Asked Questions
Q1. Are you a trading company or manufacturer?
A: We are a proficient manufacturer, specializing in screw air compressors, with over a decade of refined expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials.
2. Our installation processes are meticulously regulated.
3. Each machine is subjected to a minimum of five hours of continuous testing before leaving our factory, ensuring optimal performance and reliability.
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 engineer a customized solution tailored precisely 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 can be obtained in a wide range of voltages, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, and can be tailored to meet your specific voltage requirements.
Q6. How long is the delivery time?
A: For standard voltage, your order will be swiftly processed within just 15 working days post-confirmation. For those requiring non-standard specifications, our dedicated sales team stands ready to provide you with a detailed timeline tailored to your needs.
Q7. What's the payment term?
A: Our payment terms are structured as follows: an initial 30% T/T deposit is required. Subsequently, 40% T/T is due prior to shipment, with the final 30% T/T payable upon receipt of the B/L copy. We accept payments in both USD and RMB, offering you flexibility in your transactions.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty covering the entire machine. In addition, there is an extended two-year warranty specifically for the screw air compressor component, excluding consumable spare parts, ensuring peace of mind for your investment.
Q9. What about the maintenance?
A: Initial maintenance is recommended after the first 500 hours of operation. Thereafter, regular maintenance should be conducted every 2000-3000 hours, which can be adjusted based on the actual working environment to ensure optimal performance and longevity.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines are meticulously engineered to perform efficiently in high-temperature environments, boasting a robust working temperature range from -20°C to 45°C (-4°F to 113°F), making them ideal for diverse operational conditions.
Q11. Do you offer OEM service?
A: Yes, indeed! We are delighted to offer OEM and ODM services, supported by our experienced design team. We warmly welcome your custom orders and look forward to creating tailored solutions to meet your specific requirements.
Q12. How long could your air compressor be used?
A: Typically, our air compressors boast a remarkable lifespan that exceeds 10 years, providing you with long-term reliability and exceptional value.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to providing spare parts for your machines, ensuring that you have the necessary components to maintain and maximize the operational efficiency of your equipment.
Q14. How about your after-sales service?
A: We offer a comprehensive suite of after-sales services, including detailed online instructions for installation and commissioning. Additionally, our skilled engineers are available to provide training and installation assistance, ensuring seamless integration and operation of your new equipment.
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