Immerse yourself in the unparalleled excellence of the Sanzhi 250kw Energy-Efficient Water Cooling Two-Stage Screw Air Compressor with German Technology. Sanzhi (Henan) Compressor Co., Ltd., a venerated leader in China's compressor industry, proudly brings you this stellar innovation. Transform your operational landscape with our cutting-edge Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, heralded as a revolutionary force in factory pricing benchmarks. This marvel of engineering, featuring advanced Centrifugal Fans, achieves extraordinary energy efficiency and substantial cost savings. Crafted with meticulous precision for stationary applications, this formidable workhorse seamlessly caters to the demanding needs of industrial environments, establishing new heights in performance and reliability.
In-Depth Analysis: Comprehensive View of the Internal Structure - Frontside
Revolutionary Working Principle: 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. |
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
Unlock unprecedented market dominance with our irresistibly competitive ex-factory pricing. This strategic advantage empowers our clients to consistently outshine their competitors and thrive in their respective markets.
2. Seamless Direct Transactions
Experience unparalleled efficiency with products delivered directly from our state-of-the-art manufacturing facility. Our cost-effective solutions are meticulously tailored to your exact 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 like 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 our products consistently deliver. Your satisfaction is our top priority.
6. Swift Delivery
Enjoy the benefits of our expedited 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 at the pinnacle of air compression technology, boasting over a decade of distinguished expertise. We spearhead innovation with a comprehensive suite of advanced products, including cutting-edge screw air compressors and pioneering screw vacuum pumps. Our diverse range features standard and low-pressure screw air compressors, state-of-the-art permanent magnet frequency conversion models, and durable two-stage compression units. Setting new industry benchmarks, our screw air compressors are meticulously designed for laser cutting, versatile single-tank and double-tank mobile applications, as well as electric and diesel mobile configurations. Moreover, our trailblazing screw vacuum pumps are engineered for unparalleled precision and dependability, solidifying our status as industry leaders.
Fueled by state-of-the-art assembly lines, our manufacturing prowess is unmatched in efficiency and effectiveness. Bolstered by a dedicated team of over 50 skilled professionals, we continuously refine our management systems, such as ERP, to significantly reduce lead times and ensure swift delivery of our premium products.
Our unwavering commitment to superior management is underscored by our prestigious ISO9001 quality management system certification. Adhering to stringent quality standards through rigorous control measures, every machine undergoes exhaustive inspections, including material evaluations, production assessments, and meticulous pre-delivery checks, ensuring that only the highest-quality machines are delivered to our esteemed customers.
Our dedication to exceptional customer service starts with expert pre-sales consultations, guiding clients to select the ideal air equipment for their specific needs. Our unmatched customization capabilities enable us to tailor both appearance and configuration to individual preferences, offering OEM services to meet specific dealer requirements. Our committed sales and service team ensures prompt and effective responses, guaranteeing seamless 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. Combining rapid delivery with outstanding product quality and competitive pricing, we position ourselves as your trusted partner for comprehensive compressed air solutions.
Strategically situated in Xinzheng City, Henan Province, China, our factory offers unparalleled convenience for clients. We provide complimentary transportation from Xinzheng International Airport, just 30 kilometers away-a short hour's drive. We warmly invite 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, with 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 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 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 a wide selection of voltage options, meticulously tailored to meet diverse regional requirements. Choose from our versatile configurations: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. We are dedicated to delivering bespoke solutions with exclusive customization services, ensuring our products seamlessly align with your operational needs. This commitment translates to 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 prompt order processing, completing it within an impressive 15 working days post-confirmation. For custom orders, our proactive sales team will work closely with you to devise a timeline that fits your needs seamlessly, ensuring smooth and timely delivery. Our meticulous approach guarantees 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 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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