Immerse yourself in the extraordinary prowess of the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor, infused with superior German technology. Sanzhi (Henan) Compressor Co., Ltd., a distinguished pioneer in China's compressor domain, takes pride in presenting this groundbreaking innovation that will redefine your operational efficiency. Our state-of-the-art Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor is acclaimed as a revolutionary benchmark setter in factory pricing paradigms. Witness engineering excellence with its advanced Centrifugal Fans, delivering remarkable energy savings and reducing operational costs significantly. Designed with unwavering precision for stationary applications, this robust powerhouse effortlessly meets the rigorous demands of industrial settings, setting unparalleled standards in performance and reliability.
In-Depth Analysis: Immerse yourself in a comprehensive exploration of the internal structure - Frontside
Revolutionary Working Principle: Ushering in a New Era of Air Compression
Leading the forefront of air compression technology, achieving supreme efficiency hinges on the perfect balance between single-stage and multi-stage systems. Theoretically, both systems should consume equivalent energy, yet in practical applications, additional energy is often required due to factors such as transmission power losses, bearing friction, and cooling effects. By meticulously minimizing the compression ratio at each stage, multi-stage systems achieve unprecedented efficiency, significantly reducing power consumption compared to their single-stage counterparts. This sophisticated approach not only enhances overall system performance but also dramatically lowers excess energy use, setting a groundbreaking benchmark in power optimization.
Introducing the groundbreaking 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. This technological marvel boasts a state-of-the-art dual rotary screw mechanism, wherein each stage features an active screw driving a passive screw through 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. Essential to this advanced process are sealing air films around each screw, guiding compression through three critical phases: smooth air intake, dynamic pressurization that elevates efficiency to unprecedented levels, and the final exhaust phase, completing the cycle with unmatched precision and mastery.
First Stage Compression: The initiation phase of the two-stage screw air compressor epitomizes engineering brilliance. A sophisticated low-pressure screw assembly spearheads the process, channeling 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, thereby priming the system for exceptional performance.
Second Stage Compression: Upon entering the second stage, the gas progresses into a uniquely designed, more confined screw space, where both pressure and temperature are meticulously elevated to new heights. This process reaches its zenith as the exhaust valve opens, allowing high-pressure gases to exit the system. This marks the completion of an intricate compression cycle, characterized by unmatched efficiency and sophistication.
The sophisticated air compression journey commences as ambient air seamlessly passes 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, encountering a secondary compression phase, attaining 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 an exceptionally 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. |
The Water-cooled compressors proudly presented by Sanzhi (Henan) Compressor Co., Ltd. embody the pinnacle of precision engineering. By harnessing water's exceptional cooling capacity, they deliver superior lubrication and extended longevity for components prone to friction. This advanced technology meticulously cleanses the internal mechanisms and efficiently dissipates heat from both the cylinder and compressed gas, resulting in substantially lower exhaust temperatures and reduced power consumption. These features translate into significant operational cost savings. It is vital to ensure regular monitoring and proactive management of potential scaling issues within the cooling system to maintain peak performance and reliability.
1) High efficiency of PM motor:Our state-of-the-art permanent magnet (PM) motor is crafted to deliver an extraordinary constant torque range alongside a wide weak magnetic spectrum, achieving an unparalleled 20-30% increase in efficiency compared to traditional motors. Even at frequencies exceeding the rated level, the PM motor retains its exceptional efficiency, guaranteeing optimal performance across all operating scenarios.
2) Motor maintenance-free:Brilliantly engineered, the permanent magnet motor boasts a bearing-free design, eliminating the traditional costs associated with motor bearing upkeep and replacement. This groundbreaking design leads to a substantial reduction in overall maintenance expenses.
3) Integrated frequency converter: Fitted with China's premier frequency system, our compressor offers extensive speed regulation with remarkable precision. This dynamic system adapts seamlessly to real-time gas demands, ensuring maximal energy conservation and operational efficiency.
4) No transmission loss: Through a direct shaft connection design, our compressor integrates an advanced permanent magnet motor, contributing to a compact and streamlined structure. This innovative design dispenses with the need for couplings and other transmission elements, achieving flawless 100% transmission efficiency.
5) Variable frequency start and soft start:Our advanced motor design effectively minimizes the impact on power grid equipment, safeguarding electrical systems from potential damage and significantly extending the overall lifespan of the system.
6) Reduced energy consumption: With a remarkable frequency conversion range from 25% to 100%-superior to the standard 50% to 100%-our system offers over 30% energy savings compared to fixed-speed compressors, and approximately 5% more in comparison to standard variable frequency compressors. This provides considerable advantages for systems experiencing variable gas consumption needs.
7) Unique two-stage compression air end:Our expertly crafted two-stage compression screw machine seamlessly integrates first and second-stage compression rotors within a single casing. Each rotor is powered by individual gears, ensuring optimal linear speed and unmatched compression efficiency.
8) Internal spray curtain cooling method: Our highly efficient internal spray curtain cooling method yields exceptional cooling effects, significantly reducing compressed air temperatures. This process results in near-isothermal compression, diminished pressure loss between stages, a lower compression ratio, and boosted overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system notably decreases the compression ratio for each stage, thereby minimizing internal leakage between high and low-pressure ends and enhancing volumetric efficiency.
10) Noise reduction:With a reduced compression ratio in the two-stage system, noise levels decrease significantly, particularly during unloading operations, ensuring a quieter and more serene working environment.
11) Easy maintenance and service:Despite the sophisticated two-stage compression design, other components and structures remain similar to single-stage compressors, ensuring ease of maintenance and user-friendly service.
12) Door Panels are Removable:Constructed with noise-reducing metal plates and lined with high-density sound-absorbing material, the unit meets international noise standards. The door panels can be effortlessly opened and detached, offering a comprehensive 270-degree access that significantly facilitates maintenance personnel's tasks and boosts service efficiency.
1. Unbeatable Pricing Edge
Step into a realm of unparalleled market supremacy with our irresistibly enticing ex-factory pricing. This formidable strategic advantage empowers our esteemed clients to consistently outshine their rivals and flourish triumphantly in their respective domains.
2. Seamless Direct Transactions
Experience the pinnacle of efficiency with products dispatched directly from our cutting-edge manufacturing facility. Our cost-effective solutions are meticulously tailored to your precise specifications, ensuring unmatched precision and satisfaction at every turn.
3. Extensive OEM & ODM Solutions
Harness our robust production capabilities and expert management to access exceptional OEM/ODM services. These solutions are custom-crafted to align impeccably with your specific requirements and overarching business objectives.
4. Tailored Customization Service
We excel in addressing non-standard export orders by offering customization in critical parameters like voltage, power, and pressure. Reach out to explore bespoke solutions meticulously designed to cater exclusively to your unique needs.
5. Acceptance of Small Orders
Kickstart your experience with a small trial order to witness firsthand the exceptional quality and performance that our products consistently deliver. Ensuring your satisfaction is our ultimate priority.
6. Swift Delivery
Reap the rewards of our expedited delivery services, guaranteeing your operations remain seamless and uninterrupted, with timelines consistently met through our superior product offerings.
7. Complete Authorization
Elevate your business with our comprehensive authorization certificates. Our esteemed distributors can confidently champion the prestigious SANZHI brand products with pride and absolute assurance.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd stands at the forefront of air compression innovation, with a legacy of over ten years of unparalleled expertise. We lead the charge in technological advancements by offering an extensive array of sophisticated products, including top-of-the-line screw air compressors and groundbreaking screw vacuum pumps. Our diverse product lineup features standard and low-pressure screw air compressors, revolutionary permanent magnet frequency conversion models, and robust two-stage compression units. Our screw air compressors are meticulously engineered to set new industry benchmarks, catering to laser cutting, adaptable single-tank and double-tank mobile uses, as well as electric and diesel mobile configurations. Additionally, our cutting-edge screw vacuum pumps are crafted for unmatched precision and reliability, reinforcing our esteemed position as industry frontrunners.
Driven by cutting-edge assembly lines, our manufacturing capabilities are second to none in terms of efficiency and effectiveness. With the support of a dedicated team of over 50 skilled professionals, we are committed to continuously refining our management systems, such as ERP, to drastically reduce lead times and ensure the swift delivery of our premium-quality products.
Our steadfast commitment to exceptional management is highlighted by our prestigious ISO9001 quality management system certification. By adhering to strict quality standards through rigorous control measures, every machine undergoes comprehensive inspections, including material evaluations, production assessments, and meticulous pre-delivery checks, ensuring that only the finest-quality machines reach our valued customers.
Our unwavering dedication to outstanding customer service begins with expert pre-sales consultations, assisting clients in selecting the perfect air equipment tailored to their specific requirements. Our unparalleled customization capabilities empower us to tailor both the appearance and configuration to individual preferences, offering OEM services to meet distinct dealer needs. Our devoted sales and service team guarantees prompt and effective responses, ensuring seamless and efficient after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior and dependable products while nurturing enduring customer relationships. By combining rapid delivery with exceptional product quality and competitive pricing, we position ourselves as your trusted partner for comprehensive compressed air solutions.
Strategically located in Xinzheng City, Henan Province, China, our factory offers unparalleled convenience for clients. We provide complimentary transportation from Xinzheng International Airport, which is just 30 kilometers away-a brief hour's drive. We warmly invite 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, with over a decade of proven industry expertise.
Q2. How do you control quality?
A: 1. We perform stringent 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 rigorous minimum of 5 continuous hours of 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 craft 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: At Sanzhi (Henan) Compressor Co., Ltd., we are delighted to offer an extensive array of voltage options, exquisitely crafted to cater to diverse regional demands. Select from our adaptable configurations: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our unwavering dedication to providing bespoke solutions with unique customization services ensures that our products integrate seamlessly with your operational requirements. This devotion translates into exceptional adaptability and efficiency, empowering your enterprise with the zenith of performance and reliability.
Q6. How long is the delivery time?
A: With our standard voltage specifications, we excel in rapid order processing, completing it within an impressive 15 working days after confirmation. For customized orders, our proactive sales team will collaborate closely with you to tailor a timeline that fits your requirements seamlessly, ensuring smooth and punctual delivery. Our meticulous approach guarantees your utmost satisfaction and trust.
Q7. What's the payment term?
A: Our payment terms are crafted for simplicity and convenience. We request 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 payments in both USD and RMB currencies, offering flexibility and ease for our esteemed clientele.
Q8. How about your warranty?
A: Our robust warranty offering includes a comprehensive one-year warranty on the complete machine, along with an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage guarantees unmatched protection and peace of mind, safeguarding your investment with top-tier assurance and confidence.
Q9. What about the maintenance?
A: To maintain peak performance and longevity, we recommend initial maintenance after 500 hours of usage. Subsequently, regular servicing every 2000-3000 hours is advised, tailored to your specific working conditions. This routine maintenance is crucial for ensuring optimal durability and reliability over time.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our resilient machines are expertly engineered to thrive in high-temperature environments. They function effortlessly within a temperature range of -20°C to 45°C (-4°F to 113°F), ensuring dependable performance even under the most challenging conditions. Your operations will maintain resilience and efficiency.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our highly 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 unrivaled customization and innovation.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously 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 dependability and peace of mind.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to providing continuous support by supplying essential spare parts for your machines. This ensures seamless and uninterrupted operations, enabling you to maintain optimal performance and minimize downtime effectively.
Q14. How about your after-sales service?
A: We are dedicated 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 utmost priorities, ensuring you receive unparalleled support and guidance.
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