Internal Structure Frontside: Behold the masterfully designed frontside of our compressor's inner workings, where seamlessly integrated components come together to ensure peak performance and unparalleled durability. Experience engineering excellence that stands the test of time.
Internal Structure Backside: Explore the intricately crafted backside of our compressor's internal framework, meticulously engineered to provide exceptional support to core functionalities. This design elevates operational stability and reliability to new heights, ensuring consistent performance.
Working Principle: Dive into the innovative working principle of the Sanzhi Compressor, where cutting-edge technology marries the science of air compression. Experience a machine that delivers unmatched efficiency and power, redefining the standards of performance.
In an ideal air compression process, single-stage pressure transmission theoretically requires the same power as multi-stage compression. However, in real situations, actual working power increases due to transmission losses, bearing friction, and cooling effects, among other factors. By wisely reducing the compression ratio at each stage, unnecessary power consumption is minimized, allowing multi-stage compression to use less total power than single-stage systems.
The two-stage screw air compressor is a marvel of engineering, featuring a dual-stage rotary screw design with an active and passive screw in each stage, powered externally. The first stage handles low-pressure compression while the second stage handles high-pressure compression. A sophisticated air film seals each screw, ensuring gas is compressed through a flawless cycle of suction, pressurization, and exhaust, resulting in exceptional efficiency.
First Stage Compression: In this initial phase, our two-stage screw air compressor employs a low-pressure screw group to compress gas. Gas enters the chamber via the suction valve and is expertly handled by the rapidly spinning screw rotor, which propels it to the next compression stage.
Second Stage Compression: During this advanced stage, gas is directed into a narrowed screw space within the second-stage screw group, where it is compressed at elevated temperatures and pressures. The exhaust valve then opens proficiently, releasing the high-pressure gas and completing the compression cycle.
Natural air enters the compression system through an air filter, blending with a small amount of lubricating oil in the compression chamber. This mixture undergoes initial compression to an interstage pressure level, passing through a cooling channel where abundant oil mist significantly lowers the temperature. The cooled, compressed gas moves to the second-stage rotor for further compression, achieving final exhaust pressure and completing the fully optimized compression cycle as air is released seamlessly through the exhaust valve.
1) High Efficiency of PM Motor: Unveil the extraordinary advantages of our permanent magnet motor, boasting a remarkable 20-30% enhancement in efficiency over conventional motors. Its state-of-the-art design ensures unwavering and peak performance across all frequencies, securing unmatched efficiency consistently.
2) Motor Maintenance-Free: Our cutting-edge permanent magnet motor, designed without internal bearings, eliminates the need for any bearing maintenance or replacement. This innovation not only cuts costs but also streamlines maintenance, delivering unmatched convenience and dependability.
3) Integrated Frequency Converter: Outfitted with China's leading frequency system, this air compressor offers precise, extensive speed control. It fine-tunes energy usage to align perfectly with your air demands, substantially boosting operational efficiency.
4) No Transmission Loss: The motor-compressor link features a direct integrated shaft design, ensuring a compact, effective setup with 100% transmission efficiency. This design removes the necessity for couplings or extra transmission parts.
5) Variable Frequency Start and Soft Start Embrace the advantages of variable frequency start and soft start capabilities, markedly reducing power grid strain and protecting your electrical systems from potential harm.
6) Reduce Energy Consumption: With a conversion range of 25% to 100%, this system achieves 30% energy savings over fixed-speed compressors. It also exceeds standard variable frequency compressors by around 5% in energy efficiency, especially in environments with variable gas needs.
7) Two-Stage Compression Unique Air End: Our advanced two-stage compression design houses both first and second-stage rotors under one roof. Each rotor operates independently via gear-driven mechanisms, optimizing linear speeds and significantly enhancing compression efficiency.
8) Internal Spray Curtain Cooling Method: Incorporating a sophisticated internal spray curtain cooling method, it effectively lowers compressed air temperatures, nears isothermal compression, minimizes inter-stage pressure loss, and boosts overall compression efficiency.
9) Reduce Internal Leakage: By adopting two-stage compression, the compression ratio per stage is lowered, effectively reducing internal leakage from high to low pressure, thus enhancing volumetric efficiency.
10) Noise Reduction: The two-stage compression notably decreases the compression ratio, leading to a significant reduction in noise levels, particularly during unloading, creating a quieter, more agreeable work setting.
11) Easy Maintenance and Service: Maintaining the simplicity of single-stage systems, this two-stage compressor, apart from the screw air end, ensures straightforward maintenance and ease of use, delivering convenience and efficiency to users.
| 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. |
1. Price Advantage: Unlock powerful benefits with our unbeatable pricing strategy, designed to give you a commanding advantage over your competitors.
By providing you with ex-factory prices directly, we enable you to achieve substantial cost savings and dominate your market with ease.
2. Direct Deal: Enhance your operational efficiency and reap cost benefits by purchasing straight from our factory.
With our factory-direct shipping, you receive the most economical and efficient solutions tailored for your needs.
3. OEM & ODM Services: Offering personalized solutions meticulously crafted to meet your distinct requirements.
Our cutting-edge production capabilities and meticulous management enable us to provide unparalleled OEM/ODM services precisely tailored to your specifications.
4. Customised Service: Create solutions with unrivaled precision to perfectly match every aspect of your exact requirements.
We cater to non-standard, export, and custom orders for voltage, power, and pressure. Share your specifications, and we will bring them to life.
5. Accept Small Orders: Offering unmatched flexibility for small orders to demonstrate our product excellence.
Start with a trial order and experience the outstanding quality of our exceptional products firsthand.
6. Fast Delivery: Guaranteeing quick and dependable delivery of premium products straight to your location.
Receive premier products with assured prompt and efficient delivery services, crafted to ensure your complete satisfaction.
7. Complete Authorization: Empower distributors with comprehensive rights to promote and elevate our distinguished brand.
We provide comprehensive authorization certificates to our distributors, equipping you to confidently market our prestigious SANZHI brand products with authority and assurance.
Sanzhi (Henan) Compressor Co., Ltd stands as a beacon of innovation and excellence in the realm of manufacturing. We are trailblazers in developing pioneering screw air compressors and robust screw vacuum pumps. With over ten years of unparalleled expertise, we present an expansive and diverse array of industrial solutions. Our product suite includes standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, and advanced two-stage compression screw air compressors. We cater to niche applications such as laser cutting with specialized screw air compressors and offer versatile single and double-tank mobile screw air compressors available in both electric and diesel models. Our meticulously engineered screw vacuum pumps are crafted to meet your industrial specifications, ensuring precision and unwavering reliability.
In our production domain, we operate sophisticated multi-air compressor assembly lines, setting the standards for efficiency and modernity. Supported by a devoted team of over 50 skilled professionals, we perpetually refine management systems like ERP to drastically reduce lead times, guaranteeing quick delivery of top-tier quality products. Our unyielding dedication to excellence empowers us to adeptly fulfill the diverse demands of our clients swiftly and efficiently.
Within our management framework, our facility holds the prestigious ISO9001 quality management system certification, underscoring our commitment to rigorous quality control standards. We implement stringent processes that ensure each machine undergoes comprehensive material inspection, exhaustive production inspection, and meticulous pre-delivery inspection. This unwavering commitment ensures every product we dispatch is a testament to our promise of quality and dependability.
In customer service, we excel before sales by providing expert guidance to help customers select air equipment finely tailored to their facility needs. Our offerings feature high customization levels, from aesthetic design to functional configuration, including OEM solutions to create unique products that align with dealers' precise requirements. Our after-sales support is robust, with a professional sales and service team readily available to promptly address customer inquiries, guaranteeing an exemplary service experience.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior and stable products while fostering enduring relationships with our esteemed customers. We are committed to providing not only efficient service and competitively priced, high-quality machinery but also a dependable and satisfying compressed air solution uniquely tailored to meet your specific needs.
Our cutting-edge factory is strategically situated in Xinzheng City, Henan Province, China, offering convenient access from Xinzheng International Airport, just 30 kilometers away, approximately an hour's drive. We cordially invite you to visit our company and experience our steadfast commitment to excellence firsthand.
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, with more than 10 years of experience.
Q2. How do you control quality?
A: 1. The raw materials are strictly inspected.
2. Installation procedures are strictly controlled.
3. Each machine must pass at least 5 hours of continuous testing before leaving the factory.
Q3. What information must I provide to get the suitable machine?
1. How much air delivery capacity (Unit: CFM or m³/Min)
2. How much working pressure (Unit: PSI, Bar or Mpa)
3. What is the voltage and frequency of my country of residence (V/Hz)
4. Whether I need other accessories such as an air tank, filters, and/or air dryers.
Tell us the answer, we will offer a scheme 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 available voltage include 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized according to your requirements.
Q6. How long is the delivery time?
A: For standard voltage,15 working days after the confirmed order. Non-standard, please contact our sales.
Q7. What's the payment term?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. USD, RMB can be accepted.
Q8. How about your warranty?
A: One year for the whole machine and two years for screw air compressor, except for consumable spare parts.
Q9. What about the maintenance?
A: First maintenance needs to be done after 500 hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q10. Can machines be run in high-temperature environment?
A: Yes, machines would run in high-temperature environment countries. Working temperature from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Yes, with a professional design team, both OEM & ODM orders are highly welcome.
Q12. How long could your air compressor be used?
A: Generally, more than 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, of course.
Q14. How about your after-sales service?
A: Provide customers with installation and commissioning online instructions, and arrange for our engineers to help you with training and installation.
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