Immerse yourself in the world of unmatched excellence with the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor, epitomizing German engineering prowess. As a distinguished leader in China's compressor industry, Sanzhi (Henan) Compressor Co., Ltd. proudly unveils this extraordinary innovation. Transform your operational landscape with our trailblazing Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, celebrated for revolutionizing factory pricing standards. This engineering masterpiece, equipped with cutting-edge Centrifugal Fans, delivers extraordinary energy efficiency and significant cost savings, redefining operational economics. Designed with meticulous precision for stationary applications, this robust powerhouse seamlessly fulfills the demanding requirements of industrial settings, setting new benchmarks in performance and reliability. Experience unparalleled excellence that elevates your operational capabilities to unprecedented heights.
In-Depth Analysis: Dive into the intricate details of the internal structure, focusing on the Frontside. Discover how every component harmoniously integrates to deliver unparalleled performance and reliability.
Revolutionary Working Principle: Welcome to a New Era of Air Compression, where innovation meets efficiency. This cutting-edge principle redefines the standards of the industry, offering superior performance and sustainability.
At the pinnacle of air compression technology, our system achieves supreme efficiency through the artful balance of single-stage and multi-stage systems. While theoretically both systems demand similar energy, practical challenges like transmission power losses, bearing friction, and cooling effects often increase energy needs. By precisely minimizing the compression ratio at each stage, our multi-stage systems achieve unmatched efficiency, significantly reducing energy consumption compared to single-stage alternatives. This advanced strategy not only elevates system performance but also dramatically slashes excess energy use, establishing a revolutionary standard in power optimization.
Introducing the pioneering 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. This technological masterpiece features a state-of-the-art dual rotary screw system, with each stage comprising an active screw that drives a passive one via an expertly designed external power transfer mechanism. The first stage includes a low-pressure screw assembly tailored for optimal performance, while the second stage houses a high-pressure screw assembly. Integral to this sophisticated process are sealing air films surrounding each screw, guiding compression through three pivotal stages: seamless air intake, dynamic pressurization that propels efficiency to unprecedented heights, and the final exhaust phase, completing the cycle with unparalleled precision and excellence.
First Stage Compression: The beginning phase of the two-stage screw air compressor exemplifies engineering brilliance. A sophisticated low-pressure screw assembly initiates the process, channeling gas into the compression chamber through a precisely engineered suction valve. As the rotor spins at remarkable velocities, the gas undergoes initial compression, setting the stage for intensified compression in the subsequent phase, thus preparing the system for exceptional performance.
Second Stage Compression: As gas transitions into the second stage, it enters a uniquely designed, more confined screw space where both pressure and temperature are meticulously heightened to new peaks. This process reaches its pinnacle when the exhaust valve opens, allowing high-pressure gases to exit the system. This marks the completion of an intricate compression cycle, distinguished by unmatched efficiency and sophistication.
The sophisticated air compression journey begins as ambient air effortlessly traverses the air filter, merging with a hint of lubricating oil within the compression chamber. This blend undergoes initial compression to intermediate pressure, followed by substantial cooling via interaction with oil mist in the cooling channel. The cooled gas then proceeds to the second-stage rotor, facing a secondary compression phase to achieve the desired final exhaust pressure. This meticulously orchestrated cycle reaches its finale 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. |
Water-cooled compressors by Sanzhi (Henan) Compressor Co., Ltd. epitomize precision engineering, leveraging water's exceptional cooling capacity to deliver superior lubrication and longevity for friction-prone components. The circulating cooling water meticulously cleanses internal parts and effectively dissipates heat from both the cylinder and compressed gas. This sophisticated process slashes exhaust temperatures and power consumption, leading to significant operational cost savings. Regular monitoring and prompt management of potential scaling issues within the cooling system are essential for maintaining peak performance.
1) High efficiency of PM motor:Our cutting-edge permanent magnet (PM) motor is engineered to provide a remarkable constant torque range and a broad weak magnetic spectrum, boasting an impressive 20-30% higher efficiency than traditional motors. Even at frequencies beyond the rated level, the PM motor sustains its unmatched efficiency, ensuring optimal performance under all operating conditions.
2) Motor maintenance-free:Ingeniously designed, the permanent magnet motor features a bearing-free construction, eradicating the typical costs associated with motor bearing maintenance and replacement. This revolutionary design significantly slashes overall maintenance expenditures.
3) Integrated frequency converter: Equipped with China's top-tier frequency system, our compressor facilitates extensive speed regulation with extraordinary precision. The system dynamically adjusts to real-time gas demands, ensuring maximum energy savings and peak operational efficiency.
4) No transmission loss: Utilizing a direct shaft connection design, the compressor incorporates an integrated permanent magnet motor for a streamlined and compact structure. This innovative approach eliminates the need for couplings and other transmission components, achieving perfect 100% transmission efficiency.
5) Variable frequency start and soft start:The advanced motor design minimizes impact on power grid equipment, protecting electrical systems from potential damage and extending overall system longevity.
6) Reduced energy consumption: With an exceptional frequency conversion range of 25% to 100% (compared to the conventional 50% to 100%), our system delivers over 30% energy savings relative to fixed-speed compressors and approximately 5% more energy savings than standard variable frequency compressors, providing significant benefits for systems with fluctuating gas consumption needs.
7) Unique two-stage compression air end:Our expertly designed two-stage compression screw machine integrates first and second-stage compression rotors within a single casing, each rotor driven by individual gears to ensure optimal linear speed and peak compression efficiency.
8) Internal spray curtain cooling method: Our high-efficiency internal spray curtain cooling method delivers exceptional cooling effects, dramatically lowering compressed air temperatures. This results in near-isothermal compression, reduced pressure loss between stages, a lower compression ratio, and enhanced overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system significantly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, thereby boosting volumetric efficiency.
10) Noise reduction:The reduced compression ratio in the two-stage system notably decreases noise levels, particularly during unloading operations, ensuring a quieter and more tranquil working environment.
11) Easy maintenance and service:Despite its advanced two-stage compression design, other components and structures of our system maintain similarities to single-stage compressors, ensuring straightforward maintenance and user-friendly service.
12) Door Panels are Removable:Constructed with noise-dampening metal plates and lined with high-density sound-absorbing material, the unit meets 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
Revolutionize your market presence with our remarkably competitive ex-factory pricing. This distinctive advantage propels our clients to not only outperform rivals but also secure a formidable position in their industry landscapes.
2. Seamless Direct Transactions
Benefit from unmatched efficiency and direct dealings as our products are dispatched straight from our cutting-edge manufacturing facility. Our economically savvy solutions are precisely engineered to match your specifications, guaranteeing precision and ultimate satisfaction.
3. Extensive OEM & ODM Solutions
Harness our extensive production prowess and expert management to offer superior OEM/ODM services. These solutions are designed to integrate flawlessly with your precise needs and strategic business goals.
4. Tailored Customization Service
Specializing in non-standard export orders, we offer customization across parameters such as voltage, power, and pressure. Reach out to discover bespoke solutions tailored to fulfill your distinct requirements.
5. Acceptance of Small Orders
Initiate with a small trial order to experience the outstanding quality and consistent performance that our products promise. Ensuring your satisfaction remains our utmost priority.
6. Swift Delivery
Capitalize on our rapid delivery services, designed to keep your operations fluid and uninterrupted. With our top-tier products, your schedules are always adhered to.
7. Complete Authorization
Bolster your enterprise with our full authorization certificates. Our valued distributors are equipped to market the distinguished SANZHI brand products with confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd shines as a beacon of excellence in air compression technology, backed by over ten years of unparalleled industry expertise. We lead the charge in innovation, offering a full spectrum of advanced products that include state-of-the-art screw air compressors and groundbreaking screw vacuum pumps. Our extensive lineup showcases not only standard models but also 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 single-tank and double-tank mobile applications, and versatile electric and diesel mobile setups. Our revolutionary screw vacuum pumps are crafted with precision and reliability as their cornerstone, securing our position as industry pioneers.
Powered by cutting-edge assembly lines, our manufacturing capabilities are unmatched in both efficiency and effectiveness. With the dedication of over 50 skilled professionals, we continuously enhance our management systems like ERP, significantly cutting lead times and ensuring rapid delivery of our premium products.
Our steadfast commitment to superior management is highlighted by our esteemed ISO9001 quality management system certification. By adhering to strict quality standards and employing rigorous control measures, each machine undergoes thorough inspections, including material evaluations, production assessments, and meticulous pre-delivery checks, ensuring only top-quality machines reach our valued customers.
Our commitment to exceptional customer service begins with expert pre-sales consultations, assisting clients in selecting the perfect air equipment tailored to their specific needs. Our unmatched customization capabilities allow us to personalize both appearance and configuration to meet individual preferences and offer OEM services for specific dealer requirements. Our dedicated sales and service team ensures swift and effective responses, guaranteeing seamless and efficient post-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to provide superior, reliable products while fostering long-lasting customer relationships. By combining swift delivery with outstanding product quality and competitive pricing, we position ourselves as your trusted partner for comprehensive compressed air solutions.
Conveniently located in Xinzheng City, Henan Province, China, our factory offers unmatched accessibility for clients. We provide complimentary transportation from Xinzheng International Airport, located just 30 kilometers away, a brief 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 specializing in screw air compressors, proudly carrying over a decade of proven industry expertise.
Q2. How do you control quality?
A: 1. We rigorously inspect all raw materials to ensure they meet our exceptional quality standards.
2. Our assembly procedures are meticulously executed to uphold unmatched excellence.
3. Each machine undergoes a minimum of five 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 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 proudly unveil a dynamic range of voltage options, each carefully crafted to cater to the unique demands of various regions across the globe. 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 delivering bespoke solutions through exclusive customization services ensures that our products seamlessly integrate with your operational requirements. This unwavering commitment results in unrivaled adaptability and efficiency, empowering your business with the zenith of performance and dependability.
Q6. How long is the delivery time?
A: With standard voltage specifications, we are distinguished by our rapid order processing, achieving completion within an impressive 15 working days following order confirmation. For custom orders, our proactive sales team will collaborate closely with you to tailor a timeline that seamlessly aligns with your requirements, ensuring a smooth and timely delivery process. Our meticulous attention to detail guarantees your ultimate satisfaction.
Q7. What's the payment term?
A: Our payment terms are thoughtfully designed to offer simplicity and convenience. We initiate production with an initial 30% T/T payment, followed by a 40% T/T prior to shipment, and conclude with the final 30% T/T payment upon receipt of the B/L copy. We facilitate transactions in both USD and RMB currencies, providing flexibility and convenience for our esteemed clients.
Q8. How about your warranty?
A: We extend a comprehensive one-year warranty on the complete machine, augmented by an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage offers unmatched protection and peace of mind, safeguarding your investment with premier assurance.
Q9. What about the maintenance?
A: To ensure peak performance and longevity, we recommend initiating maintenance after the initial 500 hours of use. Subsequently, regular servicing every 2000-3000 hours is advised, customized to your specific working conditions. This routine maintenance is crucial for sustaining optimal durability and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are expertly engineered to excel in high-temperature environments. They operate smoothly within a temperature range of -20°C to 45°C (-4°F to 113°F), ensuring consistent functionality even under the most demanding conditions. Your operations will remain resilient and efficient.
Q11. Do you offer OEM service?
A: Yes, we proudly provide both OEM and ODM services, backed by our skilled design team. We enthusiastically welcome custom orders and are committed to actualizing your unique ideas 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 engineered for longevity, typically offering an extraordinary lifespan of over 10 years. This guarantees reliable and enduring performance, consistently supporting your operations over the years. Invest in our compressors for long-term dependability.
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 operations and reduces downtime, enabling you to maintain optimal performance continuously.
Q14. How about your after-sales service?
A: We are wholeheartedly devoted to delivering exceptional after-sales service. Our comprehensive offerings encompass detailed online guides for installation and commissioning, along 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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