Step into a world of unmatched superiority with the High Efficiency Sanzhi 250kW VSD Screw Air Compressor, skillfully embodying the pinnacle of German engineering excellence. As a visionary leader within China's compressor industry, Sanzhi (Henan) Compressor Co., Ltd. is proud to unveil this revolutionary creation. Elevate your operational domain with our innovative Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, celebrated for reshaping factory pricing paradigms. This engineering marvel, featuring advanced Centrifugal Fans, delivers remarkable energy efficiency and significant cost savings, revolutionizing operational economics. Designed with meticulous expertise for stationary applications, this formidable powerhouse exceeds the rigorous challenges of industrial settings, setting new standards in both performance and reliability. Embrace an unrivaled level of excellence that propels your operational capabilities to extraordinary new heights.
In-Depth Analysis: Delve into the heart of this advanced system, focusing on the Frontside. Discover how each component harmoniously integrates to deliver outstanding performance and steadfast reliability.
Revolutionary Working Principle: Welcome a new era in air compression, where state-of-the-art innovation meets exceptional efficiency. This transformative approach sets new industry standards, offering unmatched performance while prioritizing sustainability.
Leading the charge in air compression technology, our system showcases optimal efficiency through a brilliant blend of single-stage and multi-stage setups. While theoretically similar in energy demands, real-world influences like transmission power losses, bearing friction, and cooling dynamics typically increase energy needs. By carefully reducing the compression ratio at each stage, our multi-stage systems achieve outstanding efficiency, significantly reducing energy use compared to single-stage models. This refined strategy not only elevates system performance but also dramatically cuts energy excess, establishing a groundbreaking benchmark in power efficiency.
Presenting the innovative 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. This technological wonder features an advanced dual rotary screw mechanism, with each stage driving a passive screw via an expertly designed external power transfer system. The first stage contains a low-pressure screw assembly optimized for superior output, while the second stage houses a high-pressure screw assembly. Central to this intricate process are sealing air films around each screw, guiding compression through three critical stages: smooth air intake, dynamic pressurization reaching unprecedented efficiency levels, and the final exhaust phase, completing the cycle with unmatched accuracy and excellence.
First Stage Compression: The initial phase of the two-stage screw air compressor demonstrates engineering excellence. A complex low-pressure screw assembly initiates the process, directing gas into the compression chamber through a precisely tuned suction valve. As the rotor rotates at remarkable speeds, the gas undergoes initial compression, laying the foundation for enhanced compression in the next phase, thus preparing the system for extraordinary performance.
Second Stage Compression: As the gas moves into the second stage, it enters a meticulously designed, more constrained screw space where both pressure and temperature are precisely elevated to new heights. This process reaches its peak as the exhaust valve opens, allowing high-pressure gases to effortlessly exit the system. This completes a complex compression cycle, marked by unrivaled efficiency and sophistication.
The sophisticated air compression process begins as ambient air smoothly passes through the air filter, combining with a hint of lubricating oil within the compression chamber. This mixture undergoes initial compression to intermediate pressure, then experiences substantial cooling through interaction with oil mist in the cooling channel. The cooled gas then progresses to the second-stage rotor, encountering a secondary compression to achieve the desired final exhaust pressure. This expertly coordinated cycle culminates as the compressed gas is elegantly released through the exhaust valve, marking the completion of a remarkably comprehensive and efficient air compression process.
| 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. |
At Sanzhi (Henan) Compressor Co., Ltd., our water-cooled compressors epitomize the pinnacle of precision engineering. These exceptional machines utilize water's superior cooling capabilities to offer outstanding lubrication and extend the life of critical components susceptible to wear. The continuous flow of cooling water meticulously cleans internal parts while effectively dissipating heat from the cylinder and compressed gas, resulting in significantly lower exhaust temperatures and reduced power consumption. This advanced cooling process translates into substantial savings on operational costs. Regular monitoring and prompt management of any scaling issues within the cooling system are essential to maintain the compressor's peak performance.
1) High efficiency of PM motor:Our cutting-edge permanent magnet (PM) motor is designed to deliver exceptional constant torque across a wide weak magnetic range, boasting a remarkable 20-30% higher efficiency than conventional motors. Even when operated beyond rated frequencies, the PM motor maintains its unmatched efficiency, guaranteeing optimal performance under all operational conditions.
2) Motor maintenance-free:The revolutionary permanent magnet motor features a bearing-free design, eliminating the common expenses associated with motor bearing maintenance and replacement. This innovative design substantially reduces overall maintenance costs.
3) Integrated frequency converter: Equipped with China's leading frequency system, our compressor delivers precise speed regulation and adjusts in real-time to accommodate varying gas demands, ensuring maximum energy efficiency and peak performance.
4) No transmission loss: The compressor's direct shaft connection design integrates an embedded permanent magnet motor, resulting in a streamlined and compact form. This intelligent approach eliminates the need for couplings and transmission components, achieving flawless 100% transmission efficiency.
5) Variable frequency start and soft start:The advanced motor design minimizes impact on power grid equipment, protecting electrical systems and significantly extending the longevity of the entire compressor system.
6) Reduced energy consumption: Offering an extraordinary frequency conversion range of 25% to 100% (compared to the traditional 50% to 100%), our system achieves over 30% energy savings compared to fixed-speed compressors and approximately 5% more savings than standard variable frequency compressors, providing substantial benefits for systems with variable gas consumption demands.
7) Unique two-stage compression air end:The expertly crafted two-stage compression screw machine integrates first and second-stage compression rotors within a single casing. Each rotor is driven by individual gears to ensure optimal linear speed and unparalleled compression efficiency.
8) Internal spray curtain cooling method: Our high-efficiency internal spray curtain cooling method delivers outstanding cooling performance, significantly reducing compressed air temperatures. This results in nearly isothermal compression, minimized pressure loss between stages, a lower compression ratio, and enhanced overall compression efficiency.
9) Reduced internal leakage:The innovative two-stage compression system dramatically reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, thereby enhancing volumetric efficiency.
10) Noise reduction:The reduced compression ratio in our two-stage system significantly lowers noise levels, particularly during unloading operations, ensuring a quieter and more serene working environment.
11) Easy maintenance and service:Despite the advanced two-stage compression design, our system's remaining components and structures maintain similarities with single-stage compressors, ensuring straightforward maintenance and a user-friendly service experience.
12) Door Panels are Removable:Built with noise-dampening metal plates and lined with high-density sound-absorbing material, the unit adheres to international noise standards. The door panel can be effortlessly opened and removed, offering a 270-degree comprehensive access that greatly facilitates maintenance personnel's entry and enhances service efficiency.
1. Unbeatable Pricing Edge: Exceptional Value
Transform your market position with our highly competitive ex-factory pricing, a strategic edge that enables our clients to not only surpass competitors but also establish a powerful industry presence. Our pricing strategy ensures that you make a lasting and impactful mark in your market.
2. Seamless Direct Transactions: Efficiency at Its Best
Enjoy an unparalleled level of efficiency and direct transactions as our products are shipped directly from our cutting-edge manufacturing facility. Our cost-effective and meticulously designed solutions cater specifically to your needs, guaranteeing precision and satisfaction every step of the way.
3. Extensive OEM & ODM Solutions: Tailored for Excellence
Harness our expansive manufacturing capabilities and skilled management for superior OEM/ODM services. These bespoke solutions are expertly tailored to align with your specific requirements and business objectives, ensuring your ambitious vision is brought to life with unparalleled excellence.
4. Tailored Customization Service: Unique to Your Needs
Focusing on non-standard export orders, we provide bespoke customization options across parameters like voltage, power, and pressure. Connect with us to explore personalized solutions, meticulously crafted to meet your unique requirements with exact precision.
5. Acceptance of Small Orders: Discover Our Quality
Initiate with a small trial order to discover the exceptional quality and consistency of our products. Our dedication to your satisfaction is unwavering, and we strive to not only meet but exceed your expectations.
6. Swift Delivery: Keep Operations Uninterrupted
Benefit from our expedited delivery services, expertly designed to maintain the seamless and uninterrupted flow of your operations. Our premium-grade products ensure that your schedules are met with precision and reliability.
7. Complete Authorization: Empower Your Enterprise
Bolster your enterprise with our thorough authorization certificates. Our distinguished distributors are fully empowered to market the prestigious SANZHI brand products with unwavering confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd is a beacon in the realm of air compression technology, proudly rooted in over ten years of unparalleled industry brilliance. As pioneers leading the charge, we showcase an extensive range of innovative products, featuring top-of-the-line screw air compressors and groundbreaking screw vacuum pumps. Our diverse collection includes not just standard models, but also trailblazing low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion units, and robust two-stage compression systems. Our screw air compressors set new industry standards, expertly crafted for laser cutting, adaptable for single and double-tank mobility, and suitable for both electric and diesel mobile applications. Our revolutionary screw vacuum pumps are engineered for precision and reliability, reinforcing our leadership in the industry.
Our manufacturing excellence is driven by cutting-edge assembly lines, delivering unmatched efficiency and effectiveness. With a dedicated team of over 50 skilled professionals, we continually refine our management systems, such as ERP, to significantly reduce lead times and ensure the swift delivery of our superior products.
Our unwavering commitment to exceptional management is exemplified by our esteemed ISO9001 quality management system certification. By adhering to rigorous quality standards and implementing stringent control measures, every machine undergoes thorough inspections, including material evaluations, production assessments, and meticulous pre-delivery checks. This guarantees that only machines of the highest caliber reach our valued customers.
Our dedication to outstanding customer service begins with expert pre-sales consultations, guiding clients to choose the perfect air equipment tailored to their unique needs. Our unrivaled customization capabilities enable us to adapt both appearance and configuration to individual preferences and provide OEM services for specific dealer requirements. Our dedicated sales and service team ensures prompt and effective responses, guaranteeing seamless and efficient post-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior, reliable products while fostering lasting customer relationships. By combining rapid delivery with outstanding product quality and competitive pricing, we establish ourselves as your trusted partner for comprehensive compressed air solutions.
Located in Xinzheng City, Henan Province, China, our facility offers unmatched accessibility for our clients. We provide complimentary transportation from Xinzheng International Airport, conveniently just 30 kilometers away, a mere hour's drive. We warmly invite you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with over a decade of proven industry expertise.
Q2. How do you control quality?
A: 1. We meticulously inspect all raw materials to ensure they meet our exceptional quality standards.
2. Our assembly procedures are executed with precision to maintain unparalleled excellence.
3. Every machine undergoes a minimum of five continuous hours of rigorous testing before dispatch, ensuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (in CFM or m³/Min)
2. Desired working pressure (in PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (in V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will craft a bespoke solution precisely tailored to your requirements!
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: At Sanzhi (Henan) Compressor Co., Ltd., we are thrilled to present our exceptional array of voltage options, each thoughtfully designed to cater to the diverse demands of regions globally. Choose from our adaptable configurations: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our steadfast dedication to offering tailored solutions through our exclusive customization services ensures seamless product integration with your operational needs. This commitment to excellence ensures unparalleled adaptability and efficiency, elevating your business with top-tier performance and dependability.
Q6. How long is the delivery time?
A: With our standard voltage specifications, we distinguish ourselves with swift order processing, completing within an impressive 15 working days after order confirmation. For customized orders, our proactive sales team collaborates with you to craft a timeline that aligns seamlessly with your requirements, ensuring a flawless and timely delivery process. Our meticulous attention to detail guarantees your utmost satisfaction.
Q7. What's the payment term?
A: Our payment terms are ingeniously designed to provide simplicity and convenience. Production commences with an initial 30% T/T payment, followed by 40% T/T before shipment, culminating with the final 30% T/T upon receipt of the B/L copy. We facilitate transactions in both USD and RMB, offering flexibility and ease for our valued clients.
Q8. How about your warranty?
A: We offer an all-encompassing one-year warranty on the entire machine, supplemented by an extra two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage provides unrivaled protection and peace of mind, securing your investment with top-tier assurance.
Q9. What about the maintenance?
A: To ensure peak performance and longevity, we recommend initiating maintenance after the first 500 hours of use. Subsequently, regular servicing every 2000-3000 hours is advised, tailored to your specific working conditions. This routine maintenance is vital for sustaining optimal durability and reliability.
Q10. Can machines be run in high-temperature environment?
A: Indeed, our robust machines are expertly crafted to thrive in high-temperature environments. They operate seamlessly within a temperature range of -20°C to 45°C (-4°F to 113°F), assuring consistent functionality even under challenging conditions. Your operations will remain resilient and effective.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our talented design team. We warmly welcome custom orders and are dedicated to bringing your unique ideas to life with precision and excellence. Partner with us for unparalleled customization.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously crafted for longevity, typically providing an extraordinary lifespan of over 10 years. This ensures reliable and enduring performance, consistently supporting your operations over the years. Invest in our compressors for long-term reliability.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to providing ongoing support by supplying essential spare parts for your machines. This guarantees seamless operations and minimizes downtime, enabling you to maintain peak performance continuously.
Q14. How about your after-sales service?
A: We are wholly dedicated to delivering outstanding after-sales service. Our comprehensive offerings include detailed online guides for installation and commissioning, along with access to our expert engineers for training and installation support. Your satisfaction and success are our top priorities, ensuring you receive unparalleled assistance.
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