Unveil the extraordinary power and superior engineering of the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor with cutting-edge German technology. Proudly brought to you by Sanzhi (Henan) Compressor Co., Ltd., a distinguished leader in China's compressor industry, this compressor is your key to revolutionizing operational efficiency. Transform your industrial operations with our groundbreaking Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, setting new standards in factory pricing and performance benchmarks. This marvel of engineering, featuring advanced Centrifugal Fans, offers unparalleled energy efficiency and significant cost reductions. Meticulously designed for stationary use, this durable and robust machine effortlessly satisfies the rigorous demands of industrial environments, setting new heights in performance, dependability, and innovation.
Detailed View of Internal Structure Frontside
Innovative Working Principle
In the cutting-edge realm of air compression, true mastery of efficiency hinges on achieving a harmonious equilibrium between single-stage and multi-stage systems. Ideally, both should consume equal energy, yet practical applications often demand more due to factors like transmission power losses, bearing friction, and cooling impacts. By strategically minimizing the compression ratio at each stage, multi-stage systems attain exceptional efficiency, significantly reducing power consumption compared to their single-stage counterparts. This method not only enhances overall system proficiency but also dramatically curtails excess energy use, establishing a new standard in power optimization.
Introducing the revolutionary 200kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor from Sanzhi (Henan) Compressor Co., Ltd. This marvel of technology features a state-of-the-art dual rotary screw mechanism; each stage includes an active screw driving a passive screw via a meticulously engineered external power transfer system. The first stage, equipped with a low-pressure screw assembly, is optimized for peak performance, while the second stage houses a high-pressure screw assembly. Central to this process are sealing air films around each screw, guiding compression through three critical phases: a 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 brilliance. 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: Advancing 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 seamlessly 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 substantial cooling via 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 remarkable cooling prowess of water, resulting in outstanding lubrication and an extended lifespan for components prone to friction. As the cooling water circulates, it cleans internal parts efficiently and dissipates heat from both the cylinder and the compressed gas. This highly efficient process significantly reduces exhaust temperatures and power consumption, yielding substantial savings in operational costs. Regular monitoring and prompt attention to potential scaling issues within the water cooling system are imperative to sustain 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-ranging 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 across all operational scenarios.
2) Motor maintenance-free:Innovatively crafted, the permanent magnet motor is designed without internal bearings, effectively eliminating the usual costs tied to motor bearing maintenance and replacement. This groundbreaking design choice results in a dramatic reduction of 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% (as opposed 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 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. Its door panel can be effortlessly opened and detached, providing a 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 and thrive 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, ensuring 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 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 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 is our top priority.
6. Swift Delivery
Enjoy the benefits of our swift delivery services, ensuring that your operations continue without interruption and your timelines are always 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. stands as a beacon of air compression mastery, harnessing over a decade of distinguished expertise to lead the industry. Pioneering innovation, we present a vast array of advanced products, including high-performance screw air compressors and avant-garde screw vacuum pumps. Our diverse range comprises standard and low-pressure screw air compressors, state-of-the-art permanent magnet frequency conversion models, and formidable two-stage compression units. We set new benchmarks with screw air compressors tailored for laser cutting, adaptable single-tank and double-tank mobile screw options, as well as electric and diesel mobile screw air compressors. Furthermore, our revolutionary screw vacuum pumps are crafted with precision and unwavering reliability, cementing our leadership in the field.
Empowered by cutting-edge assembly lines, our manufacturing prowess ensures exceptional efficiency. Backed by a team of over 50 dedicated and skilled professionals, we continually refine our management systems, such as ERP, to significantly reduce lead times and guarantee the swift delivery of our top-tier products.
Our factory's commitment to superior management is highlighted by our prestigious ISO9001 quality management system certification. We strictly adhere to rigorous quality standards, employing comprehensive control measures. Each machine undergoes meticulous 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 select the ideal air equipment tailored to their specific needs. Our unparalleled customization capabilities enable us to personalize 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 offer 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 an experienced manufacturer specializing in screw air compressors, proudly showcasing over a decade of proven industry expertise.
Q2. How do you control quality?
A: 1. We perform rigorous inspections on all raw materials to ensure exceptional quality.
2. Our assembly procedures are meticulously executed to maintain unparalleled excellence.
3. Every machine undergoes 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?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage for air compressors?
A: Sanzhi (Henan) Compressor Co., Ltd. proudly presents an impressive selection of voltage configurations, precision-engineered to cater to diverse regional requirements. Select from options like 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our commitment to bespoke solutions and exclusive customization services ensures each product matches your operational needs with precision. This dedication results in exceptional adaptability and efficiency, equipping your enterprise with superior performance and reliability.
Q6. How long is the delivery time?
A: For standard voltage specifications, we excel in rapid order processing, completing it within an impressive 15 working days post-confirmation. For custom orders, our proactive sales team collaborates closely with you to create a timeline that fits your specific requirements, ensuring smooth and timely delivery. Our meticulous approach ensures your utmost 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 accept 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 entire machine, along with an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage provides unmatched protection and peace of mind, safeguarding your investment with top-tier assurance.
Q9. What about the maintenance?
A: To maintain peak performance and longevity, we recommend initial maintenance after 500 hours of use, with subsequent servicing every 2000-3000 hours, tailored to your specific working conditions. Routine maintenance is essential for ensuring optimal durability and reliability.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our robust machines are expertly designed to perform 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 remain resilient and efficient.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our talented design team. We welcome custom orders and are committed to bringing your unique ideas to life with precision and excellence. Partner with us for unparalleled customization and quality.
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 dedicated 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 minimize 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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