Unlock the new horizons of industrial excellence with the Large Power Oil-Lubricated Screw Compressor, brought to you by Sanzhi (Henan) Compressor Co., Ltd., the epitome of leadership in China's compressor industry. Seize the advantage of factory-direct pricing on this cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Skillfully crafted for exceptional energy conservation and superior efficiency, this compressor is outfitted with premium High-Quality Centrifugal Fans. Set a new benchmark for reliability and performance with this stationary compressor, engineered for the most rigorous industrial challenges. Elevate your operational capabilities with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, celebrated for its exceptional durability and unwavering consistency. Discover the pinnacle of efficiency, reliability, and cost-effectiveness with Sanzhi's sophisticated compressor technology, meticulously designed to elevate your industrial operations to unparalleled heights of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
Imagine a marvelous realm of air compression, where the harmony of single-stage and multi-stage compression reaches a zenith of efficiency. However, we encounter real-world challenges such as coupling transmission losses, bearing friction, and the cooling impact of fluid viscosity, each contributing to elevated energy demands. To enhance overall efficiency, it is vital to meticulously reduce the compression ratio at each step, guaranteeing that the combined power of multi-stage compression surpasses that of a singular stage, achieving superior productivity.
Behold the two-stage screw air compressor, a masterpiece of modern engineering prowess, adorned with a sophisticated dual rotary screw design, comprising both active and passive elements. The active screw serves as the powerhouse, driven by external forces, choreographing the passive screw into a harmonious rotation. The process initiates with a low-pressure screw ensemble in the preliminary stage, escalating to a high-pressure screw assembly in the subsequent phase. Each screw is enveloped by an air film seal, enabling the gas to undergo compression through graceful cycles of intake, pressurization, and release, as the screws perform their elegant rotation.
First Stage Compression: This critical phase marks the commencement of the gas compression journey. Here, gas is effortlessly drawn into the screw's compression chamber via the suction valve, where the screw rotor spins with dynamic energy, compressing the gas and efficiently channeling it to the subsequent stage.
Second Stage Compression: In this refined stage, the gas enters a more constricted screw chamber, where it experiences compression at significantly increased temperatures and pressures. The exhaust valve then opens with precision, releasing the high-pressure gas from the system in a perfectly executed maneuver.
The operation initiates as ambient air is gracefully drawn into the initial stage through an air filter, blending with a trace of lubricating oil in the compression chamber. This mixture is compressed to an intermediate pressure, then cooled as it travels through a channel where it encounters an oil mist, significantly reducing its temperature. This chilled gas is then propelled to the second-stage rotor for further compression to the final exhaust pressure. The high-pressure gas is finally released through the exhaust valve, completing the cycle with utmost sophistication and efficiency.
| 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. |
Experience the extraordinary power and unmatched efficiency of our High Volume Centrifugal Fan Two-Stage Air Compressor! This state-of-the-art system, equipped with a high-speed rotating impeller, masterfully accelerates and decelerates air, ensuring axial entry and swift cooling. It surpasses the capabilities of traditional air-cooled fans, enabling seamless, continuous operations and substantially extending the service life of your equipment.
1) High Efficiency of PM Motor:Our state-of-the-art permanent magnet motor offers an expanded constant torque and weak magnetic range, delivering an impressive 20-30% increase in efficiency over standard motors. It consistently achieves superior performance, even when operating above the rated frequency, ensuring optimal results every time.
2) Maintenance-Free Motor:Ingeniously designed without internal bearings, our advanced permanent magnet motor eliminates the costly maintenance and replacement challenges that typically come with conventional motor bearings, offering a maintenance-free solution.
3) Integrated Frequency Converter:Equipped with China's foremost frequency system, our compressor demonstrates an extensive and precise speed regulation range. It seamlessly adjusts to actual gas demand, delivering outstanding energy-saving capabilities that enhance efficiency and performance.
4) Zero Transmission Loss:The integrated shaft structure directly connects the permanent magnet motor to the compressor, eliminating couplings and transmission parts, ensuring flawless 100% transmission efficiency for maximum performance.
5) Variable Frequency Start and Soft Start:This feature significantly reduces the impact on power grid equipment, effectively protecting electrical systems from potential damage, thus ensuring reliability and longevity.
6) Reduced Energy Consumption:Our frequency conversion varies from 25% to 100%, surpassing the typical 50% to 100% range. This innovation leads to over 30% energy savings compared to fixed-speed air compressors and approximately 5% more than standard variable frequency models. Greater fluctuations in system gas consumption further amplify these energy-saving effects, optimizing operational costs.
7) Unique Two-Stage Compression Air End:Our uniquely engineered air end integrates first-stage and second-stage compression rotors within a single case, each gear-driven, ensuring ideal linear speed and significantly enhancing overall compression efficiency for superior performance.
8) Innovative Internal Spray Curtain Cooling Method:Our high energy-saving internal spray curtain cooling method provides exceptional cooling, dramatically reducing the temperature of compressed air. Achieving near-isothermal compression, it reduces interstage pressure loss, lowers compression ratios, and boosts overall compression efficiency, redefining cooling efficiency.
9) Minimized Internal Leakage:By reducing the compression ratio for each stage, our two-stage compression method minimizes internal leakage between high and low-pressure ends, significantly enhancing volume efficiency and ensuring optimal performance.
10) Noise Reduction:The two-stage compression system effectively reduces the compression ratio, resulting in significantly decreased noise levels, particularly during unloading, offering a quieter and more pleasant working environment.
11) Easy Maintenance and Service:Featuring a two-stage compressor unit, the similarities in systems and structures to single-stage compression make maintenance and user servicing straightforward and convenient, apart from the screw air end, ensuring ease and efficiency.
12) Door panels are removable:The unit's casing, crafted from noise-treated metal plates, features panels with high-density sound-absorbing material, ensuring noise levels meet international standards. The door plate can be opened and removed, offering a 270-degree all-round access for maintenance personnel, facilitating easy access to the unit's interior, enhancing convenience and serviceability.
1. Unparalleled Price Competitiveness
By granting direct ex-factory pricing, we empower our esteemed clientele with a dominant competitive edge in their respective arenas. This strategic pricing ensures substantial cost savings without sacrificing quality, enabling you to confidently rise to the top of your market.
2. Seamless Direct Transactions
Our products are dispatched directly from the heart of our factory, providing cost-effective solutions that maintain premium quality. With the elimination of middlemen, all savings are transferred to you, ensuring you receive the best value without compromise.
3. Exceptional OEM & ODM Services
Harnessing state-of-the-art production and management capabilities, we offer outstanding OEM and ODM services tailored intricately to your specific needs. Collaborate with us to bring your vision to life with unrivaled precision and quality.
4. Tailored Customization
We welcome inquiries for non-standard, export, and custom orders, including voltage, power, pressure, and beyond. Engage with us to discuss your unique requirements, and we will craft a perfect solution specifically designed for your individual specifications.
5. Welcoming Small Order Initiatives
Initiate with a small trial order to firsthand experience the extraordinary quality of our offerings. Discover why SANZHI is the preferred choice for exceptional performance and unwavering reliability.
6. Swift and Reliable Delivery
Experience the fusion of our premium product lineup with our fast, dependable delivery services. We ensure your orders reach you promptly, maintaining the seamless efficiency and productivity of your operations.
7. Comprehensive Authorization Support
We equip our valued distributors with complete authorization certificates, empowering you to market SANZHI brand products with assured confidence. Capitalize on our brand strength to elevate sales and solidify your market standing.
Sanzhi (Henan) Compressor Co., Ltd. is a shining beacon in the manufacturing industry, renowned for our unmatched proficiency in creating high-performance screw air compressors and advanced vacuum pumps. With over ten years of steadfast commitment to pioneering innovation, our extensive range of products includes standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, revolutionary two-stage compression units, and custom-designed compressors specifically crafted for laser cutting applications. We also offer adaptable mobile screw compressors. Our versatile solutions are available in single and double-tank formats, powered by either electric or diesel engines, and are further enhanced by our innovative screw vacuum pumps.
Our production techniques represent the pinnacle of modern efficiency, showcased by our sophisticated multi-air compressor assembly lines. Backed by a skilled team of over 50 dedicated professionals, we continually optimize our ERP-enhanced management systems, drastically reducing lead times and ensuring the swift delivery of superior products.
Demonstrating our commitment to excellence, our manufacturing facility proudly holds the prestigious ISO9001 certification, underscoring our relentless dedication to outstanding quality management. We implement rigorous quality control procedures, ensuring every piece of equipment undergoes exhaustive material inspections, meticulous production assessments, and comprehensive pre-shipment evaluations before leaving our facility.
Our unparalleled customer-centric service philosophy sets us apart. Our knowledgeable pre-sales team offers expert assistance in selecting the perfect air equipment, with extensive customization options available in both design and configuration. We excel in crafting bespoke OEM products to satisfy specific dealer needs. Our after-sales team, consisting of experienced professionals, ensures prompt and efficient responses to all customer inquiries and demands.
Sanzhi (Henan) Compressor Co., Ltd. is unwavering in its mission to deliver high-performance, reliable products that build lasting customer relationships. With streamlined delivery timelines, premium machines, and competitive prices, we guarantee that every interaction leads to exceptional compressed air solutions.
Strategically located in Xinzheng City, Henan Province, China, our factory offers unparalleled accessibility. We provide complimentary transportation from Xinzheng International Airport to our facility, a convenient 30-kilometer journey completed in approximately one hour. We warmly invite you to visit us and experience our dedication firsthand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: We are proudly a dedicated manufacturer specializing in screw air compressors, boasting over a decade of specialized experience in the sector.
Q2. How do you ensure quality control?
A: 1. We conduct thorough inspections on all raw materials to ensure the highest quality.
2. We maintain strict control over the installation processes to guarantee precision and reliability.
3. Each unit undergoes at least 5 hours of continuous and rigorous testing before dispatch to ensure impeccable performance.
Q3. What details must I provide to obtain the right machine?
1. Please specify the desired air delivery capacity, measured in CFM or m³/Min.
2. Outline the required working pressure, specified in PSI, Bar, or Mpa.
3. Provide local voltage and frequency specifications (V/Hz) for compatibility.
4. Indicate any additional accessories needed, such as air tanks, filters, or air dryers, to customize your solution.
Share these specifications with us, and we will tailor the ideal solution to meet your needs!
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 selection of voltage solutions meticulously designed to meet your precise needs. Choose from a wide array of options, including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Additionally, we're delighted to offer bespoke voltage solutions to precisely match your unique specifications and preferences.
Q6. What is the typical delivery time?
A: Experience the advantage of our remarkably swift delivery service for standard voltage models, featuring an impressive lead time of just 15 working days from the moment your order is confirmed. For those requiring custom non-standard voltage options, our expert sales team is readily available to craft delivery schedules that are expertly aligned with your distinct requirements, ensuring a seamless and tailored fulfillment of your needs.
Q7. What's the payment term?
A: Our payment terms are thoughtfully structured for your utmost convenience: initiate your purchase with a 30% T/T deposit, proceed with a 40% T/T payment before dispatch, and conclude with the final 30% T/T upon receipt of the B/L copy. We facilitate transactions in both USD and RMB to align perfectly with your preferred currency selections.
Q8. How about your warranty?
A: Revel in peace of mind with our all-encompassing warranty package: enjoy a comprehensive one-year coverage for the entire machine, complemented by an extended two-year warranty specifically for the screw air compressor. This includes all non-consumable parts, providing enduring protection and unwavering assurance.
Q9. What about the maintenance?
A: To ensure sustained peak performance and reliability, initiate maintenance after the first 500 hours of usage. Subsequently, regular maintenance is advised every 2000-3000 hours, tailored to adapt to your specific working conditions for optimal results.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our state-of-the-art machines are meticulously engineered to excel in high-temperature environments. They operate with outstanding efficiency across a temperature range from -20° to 45° (-4ºF to 113ºF), guaranteeing steadfast performance even in the most challenging climates.
Q11. Do you offer OEM service?
A: Indeed, we are proud to offer an extensive suite of OEM and ODM services. Our innovative design team is dedicated to crafting pioneering and adaptable solutions that are meticulously tailored to your specifications, ensuring that your brand vision is flawlessly integrated.
Q12. How long could your air compressor be used?
A: Built with longevity in mind, our air compressors are engineered for exceptional durability, boasting a robust lifespan that extends beyond 10 years, providing consistent reliability and peace of mind for many years into the future.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we guarantee the continuous availability of essential spare parts for all our machines, facilitating efficient maintenance and prompt repairs to ensure seamless and uninterrupted operation at all times.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service encompasses detailed online guidance for installation and commissioning. Furthermore, we provide the option of dispatching engineers for on-site training and installation support, ensuring a smooth and successful start to your operations.
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