Unlock new horizons of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, proudly presented by Sanzhi (Henan) Compressor Co., Ltd., the distinguished leader in China's compressor industry. Embrace the advantage of factory-direct pricing on this state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Masterfully engineered to provide exceptional energy conservation and superior efficiency, this compressor is equipped with top-tier High-Quality Centrifugal Fans. Establish a new standard of reliability and performance with this stationary compressor, crafted for the most demanding industrial scenarios. Amplify your operational capabilities with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, renowned for its remarkable durability and consistency. Experience the zenith of efficiency, reliability, and cost-effectiveness with Sanzhi's sophisticated compressor technology, precisely designed to propel your industrial operations to new heights of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Envision a realm of air compression excellence, where the energy dynamics of a single-stage process seamlessly integrate with the prowess of a multi-stage operation. However, real-world factors such as coupling transmission inefficiencies, bearing friction, and the fluid viscosity cooling conspire to elevate energy demands. To bolster efficiency, it is imperative to meticulously lower the compression ratio at each phase. This strategic reduction ensures that the aggregated power consumed in multi-stage compression triumphs over the demands of a single-stage operation.
The two-stage screw air compressor stands as a beacon of advanced engineering, boasting a sophisticated dual rotary screw configuration characterized by both active and passive screws. The active screw operates as the powerhouse, propelled by an external force, initiating the harmonious movement of the passive screw. This captivating process embarks with a low-pressure screw assembly in the preliminary stage, transitioning to a high-pressure screw configuration in the subsequent phase. Each screw is enveloped by an air film seal, facilitating gas compression through a graceful cycle of suction, pressurization, and release, as the screws revolve elegantly.
First Stage Compression: This pivotal phase begins the transformative journey of gas compression. Gas is effortlessly drawn into the screw's compression chamber via the suction valve, where the screw rotor rotates with vigor, compressing the gas and delivering it smoothly to the subsequent stage.
Second Stage Compression: In this refined phase, the gas is seamlessly directed into a more restricted screw chamber, experiencing compression under considerably heightened temperatures and pressures. The exhaust valve skillfully opens, releasing the high-pressure gas from the system with absolute precision.
The operation initiates as ambient air is drawn into the introductory stage through an air filter, merging with a delicate touch of lubricating oil within the compression chamber. This blend is compressed to an intermediate pressure level, subsequently cooled in a channel where it integrates with oil mist, substantially reducing its temperature. This carefully chilled gas is then propelled to the second-stage rotor for further compression, reaching the ultimate exhaust pressure. This process culminates in the high-pressure gas's exquisite release through the exhaust valve, gracefully completing the 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. |
Unleash the extraordinary capabilities with our High Volume Centrifugal Fan Two-Stage Air Compressor! This cutting-edge marvel, featuring a high-speed rotating impeller, expertly manipulates air flows for exceptional axial entry and rapid cooling. Surpassing traditional air-cooled fans, it delivers continuous, seamless operation that significantly extends the lifespan of your valuable equipment.
1) Exceptional Efficiency of PM Motor:Harness the power of our state-of-the-art permanent magnet motor, delivering a substantial 20-30% efficiency boost over traditional motors. Enjoy relentless high performance, even beyond rated frequencies, for consistently optimal results.
2) Maintenance-Free Motor Excellence:Our ingeniously crafted permanent magnet motor, devoid of internal bearings, eradicates the high costs associated with maintenance and replacement of traditional motor bearings, providing a truly maintenance-free experience.
3) Precision Integrated Frequency Converter:Experience unparalleled speed regulation with our compressor's top-tier Chinese frequency system. This adaptability to gas demand not only saves energy but also boosts efficiency and performance.
4) Unmatched Zero Transmission Loss:Featuring a direct connection between the permanent magnet motor and compressor, our integrated shaft structure eliminates all couplings and transmission parts, achieving flawless 100% transmission efficiency for peak performance.
5) Advanced Variable Frequency & Soft Start:Our sophisticated feature protects electrical systems from damage by minimizing the impact on power grid equipment, ensuring unmatched reliability and longevity.
6) Revolutionary Energy Consumption Reduction:Transform your energy savings with our innovative frequency conversion range of 25% to 100%, delivering over 30% savings compared to fixed-speed air compressors and about 5% more than standard variable frequency models. Enhanced system gas consumption fluctuations maximize these savings, optimizing cost efficiency.
7) Distinguished Two-Stage Compression Air End:Our distinct air end design houses both first and second-stage compression rotors within a single case, each gear-driven for optimal linear speed, significantly elevating compression efficiency and performance.
8) Pioneering Internal Spray Curtain Cooling:Revolutionize cooling with our high-efficiency internal spray curtain method, dramatically decreasing compressed air temperatures. Achieving near-isothermal compression, it lowers interstage pressure loss and compression ratios, enhancing overall efficiency.
9) Drastically Minimized Internal Leakage:Our two-stage compression method cuts compression ratios for each stage, substantially reducing internal leakage between pressure ends, which enhances volume efficiency for peak performance.
10) Superior Noise Reduction:Our two-stage compression system effectively diminishes compression ratios, resulting in significantly lower noise levels, especially during unloading, providing a quieter, more enjoyable work environment.
11) Simplified Maintenance and Service:With a two-stage compressor unit designed similarly to single-stage systems, maintenance and user servicing are straightforward, apart from the screw air end, making it efficient and user-friendly.
12) Conveniently Removable Door Panels:Constructed with noise-treated metal plates and high-density sound-absorbing material, our unit ensures noise compliance with international standards. The door plate can be opened and removed for 270-degree access, simplifying maintenance and service accessibility.
1. Unrivaled Price Competitiveness
Unlock the potential of your business with our unparalleled factory-direct pricing. This strategy empowers our valued customers with a significant advantage in their markets, ensuring major cost reductions while maintaining the highest standards of quality. Let us help you conquer your market with confidence and prowess.
2. Effortless Direct Transactions
Our offerings are shipped directly from the factory, ensuring that you receive cost-effective solutions without sacrificing excellence. By eliminating intermediaries, we pass the savings directly to you, providing a blend of affordability and superior quality that meets your needs perfectly.
3. Superior OEM & ODM Services
Harness the power of our advanced production and management capabilities to access outstanding OEM and ODM services, precisely customized to your needs. Partner with us to bring your vision to life, delivered with unmatched precision and top-tier quality.
4. Bespoke Customization
We welcome requests for non-standard, export, and custom orders covering aspects like voltage, power, and pressure. Engage with us to explore your specific requirements, and we will craft a perfectly engineered solution tailored to your unique specifications.
5. Embracing Small Order Requests
Initiate your journey with a small trial order and witness the exceptional quality of our products firsthand. See why SANZHI is the trusted choice for clients seeking remarkable performance and unyielding reliability.
6. Expedited and Trustworthy Delivery
Combine the excellence of our premium product range with our fast and reliable delivery services. We ensure your orders reach you swiftly, maintaining the seamless flow and efficiency of your business operations.
7. Extensive Authorization Support
We offer comprehensive authorization certificates to our esteemed distributors, empowering you to market SANZHI brand products with confidence. Utilize our brand's strength to elevate your sales and enhance your reputation in the market.
Sanzhi (Henan) Compressor Co., Ltd. stands as an illustrious beacon in the manufacturing realm, celebrated for our unparalleled expertise in crafting high-performance screw air compressors and vacuum pumps. With over a decade of unwavering dedication to innovation, our diverse product array includes standard and low-pressure screw air compressors, the latest permanent magnet frequency conversion models, pioneering two-stage compression units, bespoke compressors tailored for laser cutting, and versatile mobile screw compressors. Our offerings are available in both single and double-tank formats, driven by either electric or diesel power, and complemented by our groundbreaking screw vacuum pumps.
Our production methodologies are the epitome of efficiency and modernity, exemplified by our state-of-the-art multi-air compressor assembly lines. Supported by a proficient team of over 50 dedicated employees, we continually refine our ERP-enhanced management systems, significantly reducing lead times and ensuring the timely delivery of premium products.
Upholding the pinnacle of quality, our manufacturing facility proudly holds the ISO9001 certification-a testament to our unwavering commitment to exceptional quality management. We rigorously enforce comprehensive quality control protocols, ensuring each apparatus undergoes exhaustive material checks, meticulous production evaluations, and thorough pre-dispatch examinations before departing our premises.
Our customer-centric service philosophy is truly unparalleled. Our skilled pre-sales team provides expert guidance in selecting the optimal air equipment, offering extensive customization options in both appearance and configuration. We excel in crafting tailor-made OEM products to meet specific dealer requirements. Our after-sales team, comprised of seasoned professionals, guarantees rapid and effective responses to all customer inquiries and needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are resolute in our mission to deliver high-performance, reliable products that foster enduring customer relationships. Our streamlined delivery schedules, superior machines, and competitive pricing ensure that each interaction results in exceptional compressed air solutions.
Strategically nestled in Xinzheng City, Henan Province, China, our factory boasts convenient accessibility. We offer complimentary transport from Xinzheng International Airport to our premises, a swift 30-kilometer journey that takes approximately one hour. We warmly invite you to visit us and witness our dedication firsthand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: Proudly, we are a dedicated manufacturer specializing in screw air compressors, with over a decade of expert experience in the industry.
Q2. How do you ensure quality control?
A: 1. We perform thorough inspections on all raw materials.
2. We maintain strict control over installation processes to ensure precision.
3. Each unit undergoes a minimum of 5 hours of continuous and rigorous testing prior to dispatch.
Q3. What details must I provide to obtain the right machine?
1. Specify the desired air delivery capacity (Units: CFM or m³/Min).
2. Outline the necessary working pressure (Units: PSI, Bar, or Mpa).
3. Provide the local voltage and frequency requirements (V/Hz).
4. Indicate any additional accessories needed, such as air tanks, filters, or air dryers.
Share these specifications with us, and we will customize the ideal solution for you!
Q4. What are the standard unit conversions?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: Sanzhi presents an extraordinary array of voltage options precisely tailored to your requirements. Choose from 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Furthermore, we excel in delivering bespoke voltage solutions, meticulously crafted to perfectly align with your unique specifications.
Q6. What is the typical delivery time?
A: Experience the advantage of our impressively swift delivery for standard voltage models, with a lead time of merely 15 working days post order confirmation. For custom non-standard voltage configurations, our proficient sales team is ready to formulate delivery schedules closely aligned with your specific needs, ensuring seamless fulfillment and satisfaction.
Q7. What's the payment term?
A: Our payment terms are designed for your utmost convenience: initiate with a 30% T/T deposit, proceed with a 40% T/T payment prior to dispatch, and finalize with the remaining 30% T/T upon receipt of the B/L copy. We accommodate payments in both USD and RMB, aligning with your currency preferences effortlessly.
Q8. How about your warranty?
A: Enjoy peace of mind with our inclusive warranty coverage: a one-year warranty for the entire machine and an additional two-year warranty dedicated to the screw air compressor. This encompasses all non-consumable parts, ensuring enduring protection and reassurance.
Q9. What about the maintenance?
A: To ensure peak performance and reliability, commence maintenance after the initial 500 hours of operation. Thereafter, regular maintenance is advisable every 2000-3000 hours, customized to suit your specific working conditions.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our state-of-the-art machines are engineered to excel in high-temperature environments. They consistently perform in a temperature range from -20° to 45° (-4ºF to 113ºF), guaranteeing robust performance even in the most challenging climates.
Q11. Do you offer OEM service?
A: Certainly, we proudly offer comprehensive OEM and ODM services. Our innovative design team is devoted to creating pioneering and adaptable solutions precisely suited to your specifications, ensuring your brand vision is flawlessly realized.
Q12. How long could your air compressor be used?
A: Built for exceptional durability, our air compressors feature a remarkably long-lasting lifespan, exceeding 10 years, providing unwavering reliability and peace of mind for many years to come.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we guarantee the continuous availability of vital spare parts for all our machinery, facilitating efficient maintenance and quick repairs to ensure uninterrupted operation.
Q14. How about your after-sales service?
A: Our extensive after-sales service encompasses thorough online guidance for installation and commissioning. Additionally, we offer the option of dispatching engineers for on-site training and installation support, ensuring a seamless and effective start to your operations.
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