Experience unparalleled performance with our robust 200KW 272HP Screw-Compressor, brought to you by Sanzhi (Henan) Compressor Co., Ltd. This top-tier, China-supplied, factory-priced masterpiece boasts a Permanent Magnet Variable Frequency Two-Stage design, paired with our 2024 Hot Sale High-Quality Centrifugal Fans. Engineered for energy efficiency and high operational efficacy, this stationary, industrial-grade compressor stands as a beacon of reliability and power. Perfectly suited for demanding industrial applications, it ensures maximum productivity while delivering substantial energy savings.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an optimal air compression process, the power required for a single-stage pressure transmission equals the power needed for multi-stage compression. In reality, due to factors such as coupling transmission power loss, bearing friction, and the cooling effect of liquid viscosity, the actual working power increases. By reducing the compression ratio at each stage, useless power can be minimized, making the total power for multi-stage compression lower than single-stage compression.
The two-stage screw air compressor consists of a two-stage rotary screw system, each with an active and a passive screw. The active screw drives the passive screw via an external power transmission. The initial stage employs a low-pressure rate screw group, while the second stage uses a high-pressure rate screw group. Each screw is surrounded by a sealing air film. During operation, the gas is compressed through suction, pressurization, and exhaust processes.
First Stage Compression: This stage utilizes a low-pressure rate screw group that compresses the gas between them. The gas enters the screw compression chamber through the suction valve. The high-speed rotation of the screw rotor gradually squeezes the gas out, transferring it to the second stage.
Second Stage Compression: In this stage, the gas enters a tighter screw space, where it is compressed at higher temperature and pressure. The exhaust valve then opens to expel the high-pressure gas from the system.
Natural air enters the first-stage compression through an air filter, mixing with a small amount of lubricating oil. The mixture is compressed to interstage pressure in the compression chamber, then cooled by contact with oil mist in the cooling channel. This cooled, compressed gas enters the second-stage rotor for further compression to the final exhaust pressure, completing the entire compression process when discharged through the exhaust valve.
| 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 harnesses the power of a high-speed rotating impeller to significantly enhance air movement. Air enters axially into the impeller, experiencing acceleration and deceleration that dramatically cools the motor faster than standard air-cooled fans. This efficient cooling mechanism ensures continuous compressor operation and extends its lifespan.
1) Superior Efficiency of PM Motor: With an expansive constant torque range and weak magnetic range, the permanent magnet motor outperforms regular motors by 20-30% in efficiency. Even when operating away from its rated frequency, it sustains high efficiency, ensuring optimal motor performance at all times.
2) Maintenance-Free Motor:Our permanent magnet motor is designed without internal bearings, eliminating the costs associated with bearing maintenance and replacement.
3) Integrated Frequency Converter:Featuring China's top frequency system, it offers extensive speed regulation and high precision. It adjusts in real-time to the user's actual gas demand, delivering remarkable energy-saving results.
4) Zero Transmission Loss:The motor and compressor utilize an embedded integrated shaft directly connected structure, making the system more compact. With no coupling or other transmission parts, it achieves 100% transmission efficiency.
5) Variable Frequency and Soft Start:The motor's variable frequency start and soft start capabilities significantly mitigate the impact on power grid equipment, preventing damage to electrical components.
6) Energy Consumption Reduction:With a frequency conversion range of 25% to 100% (compared to the ordinary 50% to 100%), it delivers over 30% more energy savings than fixed-speed air compressors and around 5% more than standard variable-frequency compressors. The greater the fluctuation in system gas consumption, the more pronounced the energy savings.
7) Unique Two-Stage Compression Air End:This design integrates the first and second-stage compression rotors within a single case, driven directly by gears. Each rotor achieves optimal linear speed, significantly enhancing compression efficiency.
8) Advanced Internal Spray Curtain Cooling:Our high-energy saving internal spray curtain cooling method ensures excellent cooling, significantly reducing compressed air temperature. It achieves near-isothermal compression, minimizes pressure loss between stages, reduces compression ratios, and boosts compression efficiency.
9) Minimized Internal Leakage:Two-stage compression lowers the compression ratio for each stage, reducing internal leakage from high-pressure to low-pressure ends, thereby improving volumetric efficiency.
10) Noise Reduction:By lowering the compression ratios through two-stage compression, we significantly reduce operational noise, especially during unloading.
11) Ease of Maintenance and Service:Apart from the screw air end, the two-stage compressor unit retains similar systems and structure to single-stage compressors, facilitating user maintenance and convenience.
1. Unmatched Price Advantage
We provide customers with direct ex-factory pricing, ensuring you remain competitive in the market.
2. Direct Transactions
All our products are supplied straight from the factory, offering you more cost-effective solutions.
3. Comprehensive OEM & ODM Services
Our factory's robust production and management capabilities enable us to provide you with top-tier OEM/ODM services.
4. Personalized Customization
We accept non-standard, export, voltage, power, and pressure orders, all customizable to your specific needs. Contact us for any special requirements.
5. Flexible Order Quantities
You can initiate a small trial order to evaluate the exceptional quality of our products.
6. Swift and Reliable Delivery
We ensure high-quality products are delivered to you on time, every time.
7. Full Authorization for Distributors
As a distributor, you will receive comprehensive authorization certificates to sell our esteemed SANZHI brand products.
Sanzhi (Henan) Compressor Co., Ltd is a distinguished manufacturer specializing in the production of screw air compressors and screw vacuum pumps. With over a decade of industry expertise, our extensive repertoire includes normal pressure and low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, specialized screw air compressors for laser cutting, and a variety of mobile screw air compressors including single-tank, double-tank, electric, and diesel models, as well as sophisticated screw vacuum pumps.
Our production process is refined and efficient, utilizing multi-air compressor assembly lines that are both lean and modern. Supported by a dedicated team of over 50 employees, we continuously enhance our management systems, such as ERP, to minimize lead times and expedite the delivery of high-quality products.
Our factory is certified by the ISO9001 quality management system, reflecting our commitment to rigorous quality control. We strictly adhere to standard quality control procedures, ensuring that each machine undergoes comprehensive material inspection, production inspection, and pre-delivery examination, guaranteeing exceptional quality with every product.
Our customer service is unparalleled, offering professional guidance in pre-sales to help clients select the best air equipment for their needs. We provide high-level customization, including bespoke appearances and configurations, and specialize in OEM solutions to meet unique dealer requirements. Our after-sales service is equally robust, featuring a proficient sales and service team ready to respond rapidly to customer needs.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior and reliable products to foster long-term client relationships. Our promise includes efficient delivery, top-quality machines, and competitive pricing, making us your trusted partner for all compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary transportation from Xinzheng International Airport to our facility, which is just 30 kilometers away, approximately an hour's journey. We warmly welcome your visit to our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are an experienced manufacturer specializing in screw air compressors, boasting over a decade of industry expertise.
Q2. How do you control quality?
A: 1. We conduct stringent inspections of all raw materials.
2. Our installation procedures are meticulously monitored.
3. Every machine must undergo at least 5 hours of continuous testing before it leaves our factory.
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 of your country (V/Hz).
4. Any additional accessories needed, such as air tanks, filters, or air dryers.
Provide us with these details, and we will tailor the perfect solution 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 variety of voltages including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. We can also customize according to your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage, delivery within 15 working days post order confirmation. For non-standard specifications, please get in touch with our sales team for tailored timelines.
Q7. What's the payment term?
A: Payment terms are as follows: 30% T/T in advance, 40% T/T prior to shipment, and the remaining 30% T/T upon presenting the B/L copy. We accept both USD and RMB.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty for the entire machine and a two-year warranty for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: Initial maintenance should be conducted after 500 hours of operation. Subsequent maintenance should be performed every 2000-3000 hours based on the specific working environment.
Q10. Can machines be run in high-temperature environment?
A: Yes, our machines are engineered to operate efficiently in high-temperature environments, with a working temperature range of -20° to 45° (-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Absolutely, we boast a professional design team that welcomes both OEM & ODM orders with open arms.
Q12. How long could your air compressor be used?
A: On average, our air compressors are built to last for more than 10 years.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we will certainly provide spare parts for all our machines.
Q14. How about your after-sales service?
A: We offer robust after-sales support including online installation and commissioning instructions, and engineer assistance for training and installation.
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