Discover the extraordinary prowess of the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor with German Technology, a shining beacon of innovation from Sanzhi (Henan) Compressor Co., Ltd., an esteemed leader in China's compressor sector. Elevate your operational standards with our pioneering Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, a game-changer in factory pricing benchmarks. This engineering wonder, equipped with state-of-the-art Centrifugal Fans, delivers unmatched energy efficiency and remarkable cost savings. Designed with precision for stationary use, this robust powerhouse effortlessly meets the rigorous demands of industrial environments, setting unprecedented standards in performance and dependability. Experience the future of industrial air compression with this high-efficiency marvel, tailored to transform your production processes and bolster productivity like never before.
Detailed View of Internal Structure Frontside
Innovative Working Principle
In the cutting-edge world of air compression, mastering efficiency means achieving the perfect equilibrium between single-stage and multi-stage systems. Ideally, both should require the same energy, yet real-world applications often need *** due to factors like transmission power losses, bearing friction, and cooling effects. By expertly minimizing the compression ratio at each stage, multi-stage systems reach unmatched efficiency, significantly reducing power consumption compared to single-stage systems. This approach not only enhances overall system proficiency but also dramatically lowers excess energy use, setting a new benchmark in power optimization.
Introducing the groundbreaking 200kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. This technological marvel boasts a cutting-edge dual rotary screw mechanism; each stage features an active screw driving a passive screw via a meticulously engineered external power transfer system. The first stage is equipped with a low-pressure screw assembly optimized for peak performance, while the second stage houses a high-pressure screw assembly. Key to this process are sealing air films around each screw, guiding compression through three pivotal phases: smooth air intake, dynamic pressurization that boosts efficiency to unprecedented levels, and the final exhaust phase, completing the cycle with unmatched precision.
First Stage Compression: The initiation phase of the two-stage screw air compressor's operation exemplifies engineering excellence. A sophisticated low-pressure screw assembly drives the process, directing gas into the compression chamber through a precisely engineered suction valve. As the rotor spins at remarkable speeds, the gas undergoes initial compression, setting the stage for intensified compression in the subsequent phase.
Second Stage Compression: Progressing to the second stage, the gas enters a uniquely designed, more confined screw space, where pressures and temperatures are meticulously elevated to unprecedented heights. The process reaches its zenith at the opening of the exhaust valve, allowing high-pressure gases to exit the system. This completes the intricate compression cycle with unrivaled efficiency.
The sophisticated air compression journey begins as ambient air smoothly traverses through the air filter, blending with a touch of lubricating oil within the compression chamber. This mixture undergoes initial compression to intermediate pressure, followed by significant cooling through interaction with oil mist in the cooling channel. The cooled gas then advances to the second-stage rotor, where it encounters a secondary compression phase, reaching the desired final exhaust pressure. This meticulously orchestrated cycle culminates as the compressed gas is elegantly expelled through the exhaust valve, marking the conclusion of a 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. |
Water-cooled compressors are meticulously designed to harness the cooling prowess of water, resulting in outstanding lubrication and an extended lifespan for friction-prone components. The circulating water efficiently cleans internal parts and dissipates heat from both the cylinder and the compressed gas. This highly efficient process significantly reduces exhaust temperatures and power consumption, yielding substantial operational cost savings. Regular monitoring and prompt attention to potential scaling issues within the water cooling system are imperative for sustained optimal performance.
1) High efficiency of PM motor:Our pioneering permanent magnet (PM) motor is meticulously crafted to deliver an impressive constant torque range and a wide weak magnetic spectrum. It outperforms standard motors with an extraordinary 20-30% higher efficiency. Even when operating beyond the rated frequency, the PM motor maintains its exceptional efficiency, ensuring peak performance in all operational scenarios.
2) Motor maintenance-free:Innovatively crafted without internal bearings, the permanent magnet motor eliminates the usual costs tied to motor bearing maintenance and replacement. This groundbreaking design choice dramatically reduces overall maintenance expenses.
3) Integrated frequency converter: Fitted with China's premier frequency system, our compressor enables expansive speed regulation with unparalleled precision. The system intelligently adapts to real-time gas demands, ensuring superior energy savings and maximizing operational efficiency.
4) No transmission loss: Featuring a direct shaft connection structure, the compressor is equipped with an integrated permanent magnet motor, offering a streamlined and compact design. This innovative setup eliminates the need for couplings and other transmission components, achieving flawless 100% transmission efficiency.
5) Variable frequency start and soft startThe motor's advanced design significantly reduces impact on power grid equipment, safeguarding electrical systems from potential damage and enhancing overall system longevity.
6) Reduced energy consumption: With a frequency conversion range from an exceptional 25% to 100% (compared to the conventional 50% to 100%), our system achieves over 30% energy savings compared to fixed-speed compressors. It also offers approximately 5% more energy savings than standard variable frequency compressors, delivering substantial benefits for systems with varying gas consumption.
7) Unique two-stage compression air end:Our brilliantly engineered two-stage compression screw machine design flawlessly integrates both the first and second-stage compression rotors within a single casing. Each rotor is individually gear-driven to guarantee optimal linear speed, reaching pinnacle compression efficiency.
8) Internal spray curtain cooling method: Our highly efficient internal spray curtain cooling method provides exceptional cooling effects, significantly lowering compressed air temperatures. This results in near-isothermal compression, reduced pressure loss between stages, a lower compression ratio, and improved overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system greatly diminishes 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 the two-stage system notably decreases noise levels, especially during unloading operations, ensuring a quieter and more serene working environment.
11) Easy maintenance and service:Despite its innovative two-stage compression design, other components and structures of our system remain similar to single-stage compressors, making maintenance straightforward and service user-friendly.
12) Door Panels are Removable:Constructed 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 detached, providing 270-degree comprehensive access that greatly facilitates maintenance personnel's entry and enhances service efficiency.
1. Unbeatable Pricing Edge
Unlock unprecedented market dominance with our irresistibly competitive ex-factory pricing. This strategic advantage empowers our clients to consistently surpass their competitors, ensuring they thrive and excel in their respective markets.
2. Seamless Direct Transactions
Experience unparalleled efficiency with products delivered directly from our manufacturing facility. Our highly cost-effective solutions are meticulously tailored to your unique specifications, guaranteeing precision and satisfaction.
3. Extensive OEM & ODM Solutions
Leverage our robust production capabilities and expert management for exceptional OEM/ODM services. These offerings are custom-crafted to align seamlessly with your specific requirements and strategic business objectives.
4. Tailored Customization Service
We specialize in addressing non-standard export orders with customization in parameters such as voltage, power, and pressure. Contact us to explore bespoke solutions that precisely cater to your unique needs.
5. Acceptance of Small Orders
Begin with a small trial order to witness firsthand the exceptional quality and performance that our products consistently deliver. Your satisfaction remains our highest priority.
6. Swift Delivery
Enjoy the benefits of our swift delivery services, ensuring that your operations continue seamlessly and your timelines are consistently met with our superior products.
7. Complete Authorization
Empower your business with our comprehensive authorization certificates. Our esteemed distributors can confidently promote the prestigious SANZHI brand products with pride and assurance.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd epitomizes the pinnacle of air compression prowess, capitalizing on over a decade of esteemed expertise. As frontrunners in innovation, we offer an extensive selection of cutting-edge products, including sophisticated screw air compressors and pioneering screw vacuum pumps. Our diverse portfolio boasts both standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, and robust two-stage compression units. We redefine excellence with screw air compressors specifically designed for laser cutting, flexible single-tank and double-tank mobile screw options, as well as electric and diesel mobile screw air compressors. Additionally, our groundbreaking screw vacuum pumps are crafted with precision and unwavering reliability, establishing us as leaders in the field.
Empowered by state-of-the-art assembly lines, our manufacturing capabilities sustain exceptional efficiency. Supported by a team of over 50 passionate and skilled professionals, we continuously enhance our management systems, such as ERP, to significantly decrease lead times and guarantee the swift delivery of our superior products.
Our factory's dedication to superior management is underscored by our prestigious ISO9001 quality management system certification. We rigorously adhere to stringent quality standards, employing thorough control measures. Each machine undergoes comprehensive inspections, including material checks, production assessments, and detailed pre-delivery evaluations, ensuring that only machines of the highest caliber reach our valued customers.
Our customer service excellence is evident from the outset, with expert pre-sales consultations to help clients choose the ideal air equipment tailored to their specific needs. Our unrivaled customization capabilities enable us to tailor both appearance and configuration to individual preferences, while offering OEM services for unique dealer specifications. Our dedicated sales and service team ensures prompt and effective responses, guaranteeing smooth and efficient after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior, reliable products while fostering enduring customer relationships. We blend rapid delivery with exceptional product quality and competitive pricing, establishing ourselves as your trusted ally for comprehensive compressed air solutions.
Strategically nestled in Xinzheng City, Henan Province, China, our factory enhances client convenience. We provide complimentary transportation from Xinzheng International Airport, just 30 kilometers away-a short hour's drive. We warmly welcome you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer with a specialization in screw air compressors, proudly showcasing over a decade of proven industry expertise.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials to ensure exceptional quality.
2. Our assembly procedures are meticulously executed to maintain unparalleled excellence.
3. Every machine is subjected to a minimum of 5 continuous hours of rigorous testing before dispatch to ensure peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (expressed in CFM or m³/Min)
2. Desired working pressure (expressed in PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (expressed in V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will create a tailor-made solution precisely suited 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: Sanzhi air compressors proudly present an extensive array of voltage options, meticulously designed to meet diverse regional demands. Choose from configurations such as 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We are dedicated to providing bespoke solutions with exclusive customization services, ensuring each product aligns perfectly with your operational needs. This commitment translates into unparalleled adaptability and efficiency, empowering your enterprise with the pinnacle of performance and reliability.
Q6. How long is the delivery time?
A: With standard voltage specifications, we excel in swift order processing, completing it within an impressive 15 working days post-confirmation. For custom orders, our proactive sales team will collaborate closely with you to devise a timeline that seamlessly fits your needs, ensuring a smooth and timely delivery. Our meticulous approach guarantees your satisfaction.
Q7. What's the payment term?
A: Our payment terms are designed for simplicity and convenience. We require an initial 30% T/T payment to commence production, followed by a 40% T/T before shipment, and the final 30% T/T upon receiving the B/L copy. We accommodate both USD and RMB currencies, providing flexibility and ease for our esteemed clients.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty on the complete machine, complemented by an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage ensures unmatched protection and peace of mind, safeguarding your investment with top-tier assurance.
Q9. What about the maintenance?
A: To ensure peak performance and durability, we recommend the initial maintenance after 500 hours of use. Thereafter, regular servicing every 2000-3000 hours is advised, tailored to your specific working conditions. This routine maintenance is essential for maintaining optimal durability and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are expertly designed to excel in high-temperature environments. They operate effortlessly within a temperature range of -20°C to 45°C (-4°F to 113°F), ensuring reliable functionality even under the most challenging conditions. Your operations will stay resilient and efficient.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our skilled design team. We welcome custom orders and are committed to bringing your unique ideas to life, ensuring your vision is realized with precision and excellence. Partner with us for unparalleled customization.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for longevity, typically delivering 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 ensures seamless and uninterrupted operations, enabling you to maintain optimal performance and reduce downtime.
Q14. How about your after-sales service?
A: We are committed to delivering exceptional after-sales service. Our comprehensive offerings include detailed online guides for installation and commissioning, coupled with access to our expert engineers for training and installation assistance. Your satisfaction and success are our top priorities, ensuring you receive unparalleled support.
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