Immerse yourself in a realm of unparalleled excellence with the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor. This remarkable machine is the epitome of German engineering prowess and an emblem of distinction in China's compressor industry. Sanzhi (Henan) Compressor Co., Ltd. proudly introduces this groundbreaking innovation that promises to transform your operational landscape. Our trailblazing Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor is renowned for revolutionizing the standard factory pricing, offering significant cost savings while enhancing energy efficiency. This engineering marvel features state-of-the-art Centrifugal Fans that redefine operational economics. Crafted with meticulous precision for stationary applications, this robust powerhouse confidently meets the rigorous demands of industrial settings, setting new benchmarks in performance and reliability. Experience an elevation in operational capabilities to unprecedented heights with a product that promises unparalleled excellence.
In-Depth Analysis: Embark on an enlightening exploration of the intricate architecture within the Frontside. Uncover the seamless integration of components that collectively deliver unprecedented performance and steadfast reliability.
Revolutionary Working Principle: Step into the future of air compression where cutting-edge innovation harmonizes with unparalleled efficiency. This groundbreaking principle redefines industry standards, offering peerless performance and sustainable solutions.
At the apex of air compression technology, our system achieves outstanding efficiency through a masterful balance of single-stage and multi-stage designs. While in theory, both systems demand similar energy, practical issues such as transmission power losses, bearing friction, and cooling effects often hike energy requirements. By meticulously minimizing the compression ratio at each stage, our multi-stage systems attain remarkable efficiency, significantly slashing energy consumption compared to single-stage counterparts. This advanced approach not only enhances system performance but also drastically reduces unnecessary energy use, setting a revolutionary 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 cutting-edge dual rotary screw system, where each stage features an active screw that propels a passive counterpart through an expertly crafted external power transfer mechanism. The first stage encompasses a low-pressure screw assembly designed for optimal efficiency, while the second stage hosts a high-pressure screw assembly. Integral to this sophisticated process are sealing air films enveloping each screw, guiding compression through three critical stages: seamless air intake, dynamic pressurization that elevates efficiency to new heights, and the final exhaust phase, concluding the cycle with unmatched precision and excellence.
First Stage Compression: The initial phase of the two-stage screw air compressor showcases engineering brilliance. A sophisticated low-pressure screw assembly initiates the procedure, directing gas into the compression chamber via a precisely engineered suction valve. As the rotor rotates at impressive speeds, the gas undergoes initial compression, setting the foundation for intensified compression in the subsequent phase, thereby preparing the system for extraordinary performance.
Second Stage Compression: As the gas advances to the second stage, it enters a specially designed, more confined screw space where both pressure and temperature are methodically elevated to new zeniths. This process culminates as the exhaust valve opens, allowing high-pressure gases to vacate the system. This marks the completion of a sophisticated compression cycle, characterized by unmatched efficiency and sophistication.
The sophisticated air compression journey begins as ambient air seamlessly flows through the air filter, blending with a trace of lubricating oil within the compression chamber. This mixture undergoes initial compression to intermediate pressure, followed by substantial cooling through interaction with oil mist in the cooling channel. The cooled gas then advances to the second-stage rotor, where it faces a secondary compression phase to achieve the desired final exhaust pressure. This meticulously orchestrated cycle concludes as the compressed gas is elegantly expelled through the exhaust valve, signifying the completion 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 from Sanzhi (Henan) Compressor Co., Ltd. represent the pinnacle of precision engineering. Harnessing water's remarkable cooling efficiency, these compressors enhance lubrication and extend the life of friction-heavy components. The efficient circulation of cooling water meticulously cleans internal parts while dissipating heat from both the cylinder and compressed gas. This advanced cooling mechanism significantly reduces exhaust temperatures and energy use, resulting in substantial operational cost savings. Regular monitoring and swift management of potential scaling issues within the cooling system are crucial to sustaining peak performance.
1) High efficiency of PM motor:Our state-of-the-art permanent magnet (PM) motor is meticulously crafted to deliver outstanding constant torque and a broad weak magnetic field, achieving a remarkable 20-30% increase in efficiency over conventional motors. Even at frequencies beyond the rated level, this PM motor maintains its superior efficiency, ensuring optimal performance under all working conditions.
2) Motor maintenance-free:Ingeniously crafted, the permanent magnet motor features a bearing-free design, eliminating the typical expenses associated with motor bearing maintenance and replacement. This innovative design translates into considerable savings on overall maintenance costs.
3) Integrated frequency converter: Featuring China's premier frequency system, our compressor enables extensive speed regulation with exceptional accuracy. This system dynamically aligns with real-time gas demands, ensuring maximum energy conservation and peak operational efficiency.
4) No transmission loss: Boasting a direct shaft connection design, the compressor incorporates an integrated permanent magnet motor, resulting in a streamlined and compact build. This cutting-edge approach eliminates the need for couplings and other transmission elements, achieving flawless 100% transmission efficiency.
5) Variable frequency start and soft start:The advanced motor design significantly reduces the impact on power grid equipment, shielding electrical systems from potential harm and enhancing overall system durability.
6) Reduced energy consumption: Featuring an exceptional frequency conversion range from 25% to 100% (versus the typical 50% to 100%), our system offers over 30% energy savings compared to fixed-speed compressors and about 5% more savings than standard variable frequency models, delivering notable benefits for systems with varying gas consumption demands.
7) Unique two-stage compression air end:Our expertly engineered two-stage compression screw system incorporates first and second-stage compression rotors within a single housing, with each rotor driven by unique gears to guarantee optimal linear speed and maximum compression efficiency.
8) Internal spray curtain cooling method: Our high-efficiency internal spray curtain cooling method provides exceptional thermal regulation, significantly lowering compressed air temperatures. This leads to nearly 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 significantly lowers the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends, thus boosting volumetric efficiency.
10) Noise reduction:The decreased compression ratio in the two-stage system notably reduces noise levels, especially during unloading operations, ensuring a quieter and more peaceful working environment.
11) Easy maintenance and service:Despite its advanced two-stage compression design, other components and structures of our system remain akin to single-stage compressors, ensuring simple maintenance and user-friendly service.
12) Door Panels are Removable:Crafted with noise-dampening metal plates and lined with high-density sound-absorbing materials, the unit adheres to international noise standards. Its door panel can be easily opened and detached, offering a 270-degree comprehensive access that greatly aids maintenance personnel entry and enhances service efficiency.
1. Unbeatable Pricing Edge
Revolutionize your market presence with our exceptionally competitive ex-factory pricing. This compelling advantage empowers our clients to not only surpass competitors but also establish a commanding presence in their industry sectors.
2. Seamless Direct Transactions
Experience unparalleled efficiency with direct transactions as our products are dispatched straight from our state-of-the-art manufacturing facility. Our economically astute solutions are meticulously crafted to align with your exact specifications, ensuring precision and complete satisfaction.
3. Extensive OEM & ODM Solutions
Leverage our vast production expertise and proficient management to deliver superior OEM/ODM services. These solutions are meticulously designed to integrate seamlessly with your specific requirements and strategic business objectives.
4. Tailored Customization Service
Specializing in non-standard export orders, we provide customization across parameters such as voltage, power, and pressure. Contact us to unveil bespoke solutions tailored to meet your unique requirements.
5. Acceptance of Small Orders
Begin with a small trial order to witness the exemplary quality and consistent performance that our products ensure. Your satisfaction remains our highest priority.
6. Swift Delivery
Take advantage of our fast delivery services, crafted to keep your operations seamless and uninterrupted. With our premium products, your schedules are always respected and maintained.
7. Complete Authorization
Strengthen your business with our comprehensive authorization certificates. Our esteemed distributors are empowered to market the prestigious SANZHI brand products with confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd.: A luminary in the realm of air compression, Sanzhi heralds more than a decade of distinguished excellence. As trailblazers of innovation, we present an expansive portfolio of cutting-edge products, including high-performance screw air compressors and pioneering screw vacuum pumps. Our comprehensive range features not only standard models but also innovative low-pressure screw air compressors, advanced permanent magnet frequency conversion units, and resilient two-stage compression systems. Our screw air compressors redefine industry benchmarks, meticulously designed for laser cutting applications, adaptable single-tank and double-tank mobile setups, and versatile electric and diesel mobile operations. Our revolutionary screw vacuum pumps epitomize accuracy and dependability, reinforcing our status as industry forerunners.
Empowered by cutting-edge assembly lines, our manufacturing prowess is unparalleled in both efficiency and capability. With the expertise of over 50 adept professionals, we perpetually advance our management systems such as ERP, dramatically reducing lead times and ensuring the prompt delivery of our superior products.
Our unwavering dedication to superior management is epitomized by our prestigious ISO9001 quality management system certification. By steadfastly adhering to stringent quality standards and implementing rigorous control measures, each machine undergoes exhaustive inspections, encompassing material evaluations, production assessments, and comprehensive pre-delivery checks, guaranteeing that only top-tier machines reach our esteemed customers.
Our steadfast commitment to outstanding customer service begins with expert pre-sales consultations, guiding clients to choose the ideal air equipment tailored to their specific aspirations. Our unparalleled customization capabilities empower us to tailor both appearance and configuration to meet individual preferences and offer OEM services for particular dealer requirements. Our dedicated sales and service team ensures rapid 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 nurturing enduring customer relationships. By harmonizing swift delivery with outstanding product quality and competitive pricing, we establish ourselves as your dependable partner for all-encompassing compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our facility offers unparalleled accessibility for clients. We provide complimentary transportation from Xinzheng International Airport, merely 30 kilometers away, a swift hour's drive. We cordially invite you to visit our distinguished facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, proudly boasting over a decade of industry expertise.
Q2. How do you control quality?
A: 1. Comprehensive inspections of all raw materials ensure alignment with our exceptional quality standards.
2. Our assembly processes are meticulously executed to maintain unparalleled excellence.
3. Each machine is subjected to at least five continuous hours of rigorous testing prior to dispatch, ensuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (expressed in CFM or m³/Min)
2. The desired working pressure (expressed in PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (expressed in V/Hz)
4. Any 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 present an extensive selection of voltage options, each meticulously designed to meet the diverse requirements of regions worldwide. Choose from our versatile configurations: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our steadfast dedication to delivering tailor-made solutions through exclusive customization services ensures our products are flawlessly aligned with your operational needs. This commitment fosters unparalleled adaptability and efficiency, empowering your enterprise with peak performance and unwavering reliability.
Q6. How long is the delivery time?
A: With standard voltage specifications, we stand out for our expeditious order processing, completing within a remarkable 15 working days post order confirmation. For custom orders, our proactive sales team will collaborate closely with you to craft a timeline that perfectly matches your needs, ensuring a seamless and timely delivery process. Our keen attention to detail guarantees your utmost satisfaction.
Q7. What's the payment term?
A: Our payment terms are strategically crafted for simplicity and convenience. We commence production with an initial 30% T/T payment, followed by 40% T/T prior to shipment, and conclude with the final 30% T/T payment upon receipt of the B/L copy. Transactions are facilitated in both USD and RMB, offering flexibility and ease for our esteemed clients.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty for the complete machine, enhanced by an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage ensures unmatched protection and peace of mind, securing your investment with superior assurance.
Q9. What about the maintenance?
A: To maintain peak performance and extend longevity, we advise initiating maintenance after the first 500 hours of use. Thereafter, regular servicing every 2000-3000 hours is recommended, 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: Absolutely, our machines are expertly crafted to excel in high-temperature environments. They perform seamlessly within a temperature range of -20°C to 45°C (-4°F to 113°F), ensuring consistent operation even under the most challenging conditions. Your operations will remain robust 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 warmly welcome custom orders and are committed to realizing your unique ideas with precision and excellence. Collaborate with us for unmatched customization.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously designed for longevity, typically providing an extraordinary lifespan of over 10 years. This ensures reliable and enduring performance, consistently supporting your operations over the years. Choose our compressors for long-term dependability.
Q13. Will you provide some spare parts for the machines?
A: Absolutely, we are committed to providing ongoing support by supplying essential spare parts for your machines. This ensures uninterrupted operations and minimizes downtime, enabling you to maintain optimal performance continuously.
Q14. How about your after-sales service?
A: We are passionately committed 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 assistance. Your satisfaction and success are our top priorities, ensuring you receive unparalleled support.
Audited Supplier 
){kind=link}