Unlock the pinnacle of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, a flagship offering from China's prestigious leader, Sanzhi (Henan) Compressor Co., Ltd. Seize the opportunity to benefit from direct-from-factory pricing on this state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Impeccably engineered with precision, it promises extraordinary energy efficiency and significant savings for your business. Outfitted with top-tier High-Quality Centrifugal Fans, this stationary powerhouse redefines what it means to be reliable and high-performing, seamlessly catering to the most demanding industrial scenarios with ease. Revolutionize your operations with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, robustly constructed for intense industrial applications, ensuring unparalleled durability and steadfast performance. Immerse yourself in the remarkable efficiency, steadfast reliability, and cost-effectiveness of Sanzhi's pioneering compressor technology, meticulously crafted to elevate your industrial operations to new heights of performance and sustainability. Discover the transformative power and sustainable advantages that come with integrating Sanzhi's compressors into your industrial framework.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In the realm of air compression, achieving unparalleled efficiency is a delicate balance. Ideally, the energy needed for a single-stage compression should match that of a multi-stage combination. However, real-world conditions often present hurdles such as energy losses due to coupling transmission, friction from bearings, and increased viscosity of liquids, all contributing to higher energy consumption. To counteract these challenges and maximize efficiency, it's crucial to minimize the compression ratio at each stage. This strategic reduction ensures that the total energy required for multi-stage compression is remarkably less than single-stage operations, marking a significant advancement in energy conservation.
Embodying the pinnacle of modern engineering, the two-stage screw air compressor showcases a sophisticated dual rotary screw system. This intricate design integrates both a dynamic active screw and a responsive passive screw. The active screw, driven externally, initiates the motion, energizing the passive screw. The process begins with the low-pressure screw assembly in the first stage and transitions to a high-pressure screw assembly in the second stage. Each screw is enveloped by an air film, playing a pivotal role in gas compression through a seamless cycle of suction, pressurization, and exhaust during rotation, epitomizing precision and efficiency.
First Stage Compression: This essential phase marks the beginning of the gas compression process. Here, the low-pressure screw ensemble effectively draws gas into the compression chamber via a strategically positioned suction valve. The swift rotation of the screw rotor intensifies gas compression, skillfully channeling it towards the second stage, ensuring a robust foundation for subsequent processes.
Second Stage Compression: This critical phase sees gas entering a more constrained screw chamber, where it undergoes compression under elevated temperatures and pressures. The process culminates with the exhaust valve opening, releasing the high-pressure gas with exceptional accuracy and control, demonstrating the compressor's precision engineering.
The compression process begins as ambient air is smoothly drawn into the initial stage through an air filter, harmoniously mixing with lubricating oil in the compression chamber. The gas is first compressed to an interstage pressure, followed by a temperature reduction through interaction with oil mist within the cooling channel. This significant cooling effect prepares the gas for further compression by the second-stage rotor, ultimately achieving the desired exhaust pressure. This meticulously coordinated cycle concludes with the compressor's proficient release of high-pressure gas through the exhaust valve, underscoring its efficiency and reliability.
| 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. |
Embark on an exhilarating journey to uncover the unmatched prowess and efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This cutting-edge marvel features a high-speed rotating impeller that artfully manages airflows, delivering superior axial entry and rapid cooling. It surpasses traditional air-cooled systems, ensuring uninterrupted operation and dramatically prolonging service life.
1) High Efficiency of PM Motor:Our revolutionary permanent magnet motor provides an extended constant torque and weak magnetic range, enhancing efficiency by an impressive 20-30% compared to conventional motors. It consistently showcases superior performance well beyond its rated frequency.
2) Maintenance-Free Motor:Ingeniously engineered to exclude internal bearings, our state-of-the-art permanent magnet motor completely eliminates the financial burdens and hassles of maintaining and replacing standard motor bearings.
3) Integrated Frequency Converter:Presenting China's top-tier frequency system, our compressor boasts an extensive and precise speed regulation range, expertly adapting to real-time gas demands and delivering remarkable energy-saving benefits.
4) Zero Transmission Loss:The innovative integrated shaft structure connects the permanent magnet motor directly to the compressor, obviating the need for couplings and transmission components, ensuring unrivaled 100% transmission efficiency.
5) Variable Frequency Start and Soft Start:This groundbreaking feature significantly reduces the impact on power grid equipment, effectively safeguarding electrical systems against potential damage.
6) Reduced Energy Consumption:Our frequency conversion range extends from 25% to 100%, surpassing the typical 50% to 100%, resulting in over 30% energy savings compared to fixed-speed compressors and approximately 5% more than standard variable frequency models. Greater variance in system gas consumption further amplifies these savings.
7) Unique Two-Stage Compression Air End:Our expertly crafted air end integrates the first and second-stage compression rotors within a single case, each gear-driven to ensure optimal linear speed, thereby enhancing compression efficiency.
8) Innovative Internal Spray Curtain Cooling Method:Our cutting-edge internal spray curtain cooling method drastically lowers the temperature of compressed air. Achieving near-isothermal compression, it minimizes interstage pressure loss, reduces compression ratios, and boosts overall efficiency.
9) Minimized Internal Leakage:By efficiently reducing each stage's compression ratio, our two-stage compression technique minimizes internal leakage from high to low-pressure ends, significantly advancing volume efficiency.
10) Noise Reduction:The two-stage compression system significantly diminishes the compression ratio, resulting in remarkably lower noise levels, particularly during unloading cycles.
11) Easy Maintenance and Service:With a two-stage compressor unit, the structural and system resemblances to single-stage compression simplify user maintenance and servicing, beyond the screw air end.
12) Door panels are removable:The casing, crafted from noise-dampened metal, is fitted with high-density sound-absorbing materials, meeting global noise standards. The door panels are ingeniously designed for easy opening and disassembly, offering comprehensive 270-degree access for maintenance personnel, greatly enhancing ease of service.
1. Unmatched Price Competitiveness
Discover the pinnacle of price competitiveness with our unrivaled direct ex-factory pricing model. Elevate your market presence with substantial cost savings, while upholding the high-quality standards you expect. Empower your business to reach new heights with unparalleled confidence and commanding pricing leverage.
2. Seamless Direct Transactions
Embrace the simplicity of direct transactions through our exclusive factory-to-customer framework. By eliminating intermediaries, we offer cost-effective solutions that significantly enhance your purchasing power. Enjoy unbeatable affordability combined with uncompromised superior quality, delivered directly from our factory to you.
3. Exceptional OEM & ODM Services
Unlock the potential of our exceptional OEM and ODM services, backed by cutting-edge production and management expertise. We carefully tailor each project to match your specific needs, collaborating closely with you to bring your vision to life. Rely on our precision and dedication to achieve remarkable results.
4. Tailored Customization
Explore limitless opportunities with our bespoke customization services. We gladly accept non-standard, export, and personalized orders for various voltage, power, pressure, and more. Partner with us to craft solutions that perfectly align with your unique specifications, ensuring they fulfill your precise needs.
5. Acceptance of Small Orders
Embark on your journey with SANZHI's superior quality by starting with a small trial order. Experience firsthand why clients consistently choose us for extraordinary performance and reliability. Discover the distinction with our exceptional product offerings and make well-informed decisions.
6. Swift and Reliable Delivery
Benefit from our swift and reliable delivery services, paired with exceptional product quality. We guarantee timely deliveries so your operations move forward smoothly, keeping you competitive and ahead in the industry.
7. Comprehensive Authorization
Enhance your sales strategy with our comprehensive authorization for distinguished distributors. Market SANZHI brand products with utmost confidence, leveraging our brand's prestigious reputation to boost your sales performance and industry credibility.
Sanzhi (Henan) Compressor Co., Ltd. shines as an industry leader in manufacturing, celebrated for our world-class screw air compressors and vacuum pumps. With a steadfast dedication of over ten years, we boast an expansive portfolio featuring standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion designs, advanced two-stage compression units, specialized laser cutting compressors, and versatile mobile screw compressors. Our products, available as single or double-tank models, come in both electric and diesel variants, all complemented by our pioneering screw vacuum pumps.
Our production processes stand as paragons of efficiency and innovation, with state-of-the-art multi-air compressor assembly lines. Supported by a skilled team of over 50 dedicated employees, we continuously refine our ERP-driven management systems to slash lead times and assure timely delivery of products that embody the pinnacle of excellence.
Upholding the highest quality standards, our factory proudly bears the ISO9001 certification. This attests to our unyielding commitment to quality management. We enforce rigorous quality control protocols, ensuring each machine undergoes meticulous material inspections, production assessments, and comprehensive pre-delivery checks, guaranteeing unmatched reliability and performance.
Our customer service ethos is second to none. Our pre-sales team provides expert guidance to help you select the perfect air equipment, offering extensive customization options for appearance and configuration. We excel in crafting bespoke OEM products tailored to specific dealer requirements. Our after-sales team of seasoned professionals ensures quick and effective responses to all customer inquiries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering high-performance, dependable products that cultivate lasting customer relationships. Our efficient delivery schedules, top-tier machines, and competitive pricing ensure that you consistently receive outstanding compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transportation from Xinzheng International Airport to our premises, a brief 30-kilometer journey that takes about an hour. We warmly invite you to visit us and enjoy our hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a specialized manufacturer devoted exclusively to screw air compressors, with over a decade of professional expertise and experience.
Q2. How do you control quality?
A: 1. We perform strict inspections on all raw materials.
2. We exercise rigorous control over installation procedures.
3. Every machine undergoes at least 5 hours of continuous testing prior to dispatch to ensure optimal performance.
Q3. What information must I provide to get the suitable machine?
1. The desired air delivery capacity (Unit: CFM or m³/Min).
2. The required working pressure (Unit: PSI, Bar, or Mpa).
3. The voltage and frequency specific to your location (V/Hz).
4. Any additional accessories needed, such as an air tank, filters, or air dryers.
Share these details with us, and we will expertly tailor a solution to meet your precise 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 for air compressors?
A: Sanzhi proudly presents an extensive array of compressor voltage options, including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Moreover, our bespoke customization service is at your disposal to ensure your specific needs are met with precision and excellence.
Q6. How long is the delivery time?
A: For standard voltage specifications, we are delighted to promise a remarkably rapid delivery period of merely 15 working days post order confirmation. For bespoke solutions featuring non-standard voltage specifications, our proficient sales team stands ready to craft precise, tailor-made delivery schedules to perfectly match your distinctive requirements.
Q7. What's the payment term?
A: To guarantee a hassle-free and seamless transaction process, our payment terms are as follows: an initial 30% T/T deposit is necessitated, succeeded by a further 40% T/T payment before shipment, concluding with the final 30% T/T upon the receipt of the B/L copy. We provide the versatility of payments in both USD and RMB to best suit your financial preferences.
Q8. How about your warranty?
A: Our comprehensive warranty program is thoughtfully designed to provide unparalleled peace of mind. We offer a robust one-year warranty for the entire machine, complemented by an extensive two-year warranty for the screw air compressor, ensuring complete coverage for all non-consumable parts.
Q9. What about the maintenance?
A: We recommend conducting an initial maintenance inspection after the first 500 hours of operation. Subsequently, routine maintenance should be carried out every 2000-3000 hours, depending on specific operational conditions, to maintain peak performance and extend the lifespan of the equipment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to maintain optimal performance even in high-temperature environments. They operate efficiently within a temperature range of -20° to 45° (-4ºF to 113ºF), ensuring consistent reliability and performance.
Q11. Do you offer OEM service?
A: Yes, we are delighted to offer a comprehensive suite of OEM and ODM services. Our talented design team is devoted to delivering innovative and versatile solutions, meticulously customized to fulfill your specific requirements and business ambitions.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for remarkable durability, showcasing an impressive lifespan exceeding 10 years. This ensures long-term reliability and operational peace of mind, paving the way for sustained success.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we assure the provision of essential spare parts for all our machines. This commitment guarantees efficient maintenance and timely repairs, ensuring your operations remain uninterrupted and efficient.
Q14. How about your after-sales service?
A: Our meticulous after-sales service is designed to fully support your needs, offering comprehensive online assistance for installation and commissioning. Additionally, for heightened convenience, we can arrange for our engineers to deliver on-site training and installation support, ensuring smooth and efficient operations from the outset.
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