Internal Structure - Frontside
Internal Structure - Backside
Working Principle
In the fascinating world of air compression, achieving optimal efficiency in single-stage compression necessitates that the power consumption should mirror the total effort seen in multi-stage compression systems. However, inefficiencies often arise in real-world applications, such as power loss due to coupling, friction in bearings, and viscosity of the cooling liquid, which can lead to increased power consumption. Multi-stage compression ingeniously reduces the compression ratio at each stage, effectively curbing these inefficiencies, thereby significantly lowering the overall power requirement compared to single-stage compression.
We proudly unveil our innovative two-stage screw air compressor, which boasts a dual-stage rotary screw mechanism. Each stage is ingeniously designed with an active and a passive screw. The active screw dynamically drives the passive screw through an external power source. The first stage features a low-pressure rate screw group, while the second stage utilizes a high-pressure rate screw group. Each screw is enveloped by a sealing air film that masterfully compresses the gas through three distinct stages: suction, pressurization, and exhaust.
First Stage Compression: The process begins as the low-pressure rate screw group expertly compresses the incoming gas. The gas is drawn into the compression chamber through a precisely engineered suction valve, where it undergoes gradual compression before being efficiently transferred to the second stage, driven by the vigorous rotation of the screw rotor.
Second Stage Compression: In this critical phase, the gas is channeled into a narrower screw space, where it faces compression at heightened temperatures and pressures. As the process reaches its climax, the high-pressure gases are discharged from the system when the exhaust valve opens, thus elegantly concluding the compression cycle.
The sophisticated procedure begins with natural air being meticulously filtered before it enters the initial compression stage. Here, it is meticulously combined with a small quantity of lubricating oil. This blend is compressed to interstage pressure and skillfully navigates through a cooling channel, where it encounters a significant amount of oil mist that dramatically reduces its temperature. The cooled gas then advances to the second stage for further compression, ultimately being released through the exhaust valve, thereby completing the comprehensive and thorough compression sequence.
Water-cooled compressors expertly harness the robust cooling prowess of water, resulting in unmatched lubrication and significantly extending the lifespan of components susceptible to wear and tear. As the cooling water circulates, it meticulously cleanses internal parts while efficiently dissipating heat from both the cylinder and the compressed gas. This highly effective method dramatically reduces exhaust temperatures and power consumption, leading to remarkable operational cost savings. It is essential to regularly monitor and address any potential scaling issues within the water cooling system to ensure peak performance and longevity.
1) Superior Efficiency of PM Motor:Discover the future of efficiency with our advanced permanent magnet motor, engineered to deliver an extraordinary range of constant torque and weak magnetic power, enhancing efficiency by a staggering 20-30% over conventional motors. Even at varying frequencies, it retains consistent efficiency, guaranteeing exceptional motor performance at all times.
2) Maintenance-Free Motor:Designed with innovation, our permanent magnet motor is devoid of internal bearings, effectively eliminating the need for costly and labor-intensive maintenance and bearing replacements, ensuring a seamless, worry-free experience.
3) Integrated Frequency Converter:Equipped with China's leading frequency system, this unit offers a broad speed regulation range and unparalleled precision. It seamlessly adapts to actual gas demand, delivering outstanding energy-saving benefits for your air compressor.
4) Zero Transmission Loss:Featuring an integrated shaft structure that directly links the permanent magnet motor to the compressor, this design eradicates couplings and other transmission components, achieving impeccable transmission efficiency of 100%.
5) Variable Frequency and Soft Start:Experience the benefits of variable frequency start and soft start with our motor, significantly reducing impact on power grid equipment and protecting against potential damage to electrical components.
6) Enhanced Energy Efficiency:Unleash substantial energy savings with our system's frequency conversion range from 25% to 100%, vastly outperforming the standard range of 50% to 100%. This results in over 30% energy savings compared to fixed speed compressors and approximately 5% more savings than standard variable frequency compressors, especially during significant fluctuations in system gas consumption.
7) Unique Two-Stage Compression Air End:Our innovative two-stage compression screw machine boasts a specialized air end, integrating both first-stage and second-stage compression rotors within a single casing. These rotors, operating via gears, achieve the optimal linear speed for each stage, significantly boosting compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Revolutionize cooling performance with our pioneering internal spray curtain cooling technique. It dramatically reduces the compressed air temperature, approximating isothermal compression, while minimizing pressure loss between stages, thereby enhancing compression efficiency.
9) Minimized Internal Leakage:By employing a two-stage compression method, the compression ratio for each stage is lowered, thereby minimizing internal leakage from high-pressure to low-pressure ends and amplifying volumetric efficiency.
10) Noise Reduction:The two-stage compression design expertly cuts down the compression ratio, resulting in a notable reduction in operational noise, particularly during unloading.
11) Simplified Maintenance and Service:Beyond the screw air end, our two-stage compressor unit retains the familiar systems and structures of single-stage compressors, ensuring straightforward maintenance and user convenience.
1. Unrivaled Price Competitiveness
We provide direct ex-factory pricing, delivering an unparalleled competitive advantage in the marketplace. Our approach ensures you receive unmatched value while steadfastly maintaining the highest quality standards.
2. Direct Purchase Benefits
Our products are dispatched directly from the factory gates, offering you the most economical solutions possible by eliminating intermediaries and transferring the cost savings directly to you.
3. Extensive Expertise in OEM & ODM
With robust production and management capabilities, we are perfectly positioned to offer exceptional OEM/ODM services, precisely customized to align with your exact specifications, ensuring your product vision becomes a reality.
4. Personalized Customization Solutions
We accommodate both non-standard and export orders, tailoring elements such as voltage, power, and pressure to your distinct specifications. Share your specific needs with us and receive bespoke, tailored solutions.
5. Acceptance of Small Orders
Discover the superior quality of our products by initiating with a small trial order. This allows you to experience our outstanding standards firsthand before proceeding with larger commitments.
6. Swift and Reliable Delivery
Benefit from our top-notch products paired with our fast and reliable delivery services, ensuring your orders are promptly and dependably fulfilled.
7. Comprehensive Authorization Support
We offer our distributors complete authorization certificates, empowering you to market our SANZHI brand products with total confidence and official endorsement.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the world of manufacturing, specializing in premium screw air compressors and vacuum pumps. With over a decade of remarkable industry experience, we pride ourselves on our extensive and innovative product range. Our cutting-edge offerings include an array of screw air compressors and vacuum pumps, from normal and low-pressure screw air compressors to energy-efficient permanent magnet frequency conversion models. Our two-stage compression units further enhance performance, tailored solutions for laser cutting, as well as versatile single-tank and double-tank mobile screw air compressors. Choose between our reliable electric and diesel mobile screw air compressors and explore our sophisticated screw vacuum pumps.
In production, our state-of-the-art assembly lines represent the pinnacle of manufacturing efficiency, thanks to our dedicated team of over 50 skilled professionals. We continuously refine management systems like ERP, ensuring the fastest possible lead times and delivering impeccable quality products swiftly and consistently.
In management, our factory proudly flaunts the prestigious ISO9001 quality management system certification. We uphold the highest quality standards by executing rigorous quality control measures. Each machine undergoes thorough inspections, including material verification, production evaluations, and comprehensive pre-delivery assessments, guaranteeing that only premium products leave our premises.
In customer service, we are unparalleled, offering expert pre-sales consultation to guide customers in selecting the perfect air equipment tailored to their precise needs. Our sophisticated customization services cover both appearance and configuration, alongside OEM options to meet unique dealer requirements. Our robust after-sales support ensures swift and proficient customer service, facilitated by our professional sales and service team.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering commitment to excellence ensures the delivery of superior, reliable products and the cultivation of enduring customer partnerships. Our promise of swift delivery, top-notch machinery, and competitive pricing makes us your steadfast partner for comprehensive compressed air solutions.
Our strategically located factory in Xinzheng City, Henan Province, China, offers seamless connectivity. We provide complimentary pick-up services from Xinzheng International Airport, a convenient 30 kilometers or approximately a one-hour drive away. We eagerly anticipate welcoming you to our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer with specialized expertise in screw air compressors, supported by over 10 years of industry experience.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections of all raw materials, ensuring the highest quality from the start.
2. Installation procedures are meticulously curated and controlled, ensuring precision and reliability.
3. Each machine is subject to a minimum of 5 hours of continuous performance testing before dispatch to guarantee optimal operation.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min)
2. Desired working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will design a tailored solution for you, ensuring the perfect fit for your needs!
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 air compressor?
A: Sanzhi air compressors come in a versatile range of voltages, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, with further customization available to suit your distinct needs.
Q6. How long is the delivery time?
A: For standard voltage orders, your request will be processed with exceptional speed, specifically within an impressive 15 working days upon confirmation. For orders requiring non-standard specifications, please reach out to our dedicated sales team. They will provide detailed timelines and personalized assistance to ensure your needs are thoroughly met.
Q7. What's the payment term?
A: Our payment terms are straightforward and flexible: an initial 30% T/T deposit is required upfront, followed by an additional 40% T/T prior to shipment, and the remaining 30% T/T upon receipt of the B/L copy. For your convenience, we accept payments in both USD and RMB.
Q8. How about your warranty?
A: We proudly offer a comprehensive warranty package: a full one-year warranty covering the entire machine and an extended two-year warranty specifically for the screw air compressor. Please note that consumable spare parts are excluded from this warranty.
Q9. What about the maintenance?
A: The initial maintenance is essential and should be performed after 500 hours of operation. Subsequently, maintenance is required every 2000-3000 hours, with adjustments made based on the actual working environment to ensure optimal performance.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to deliver efficient performance even in high-temperature environments. They operate optimally within a temperature range from -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Yes, indeed! We are proud to offer comprehensive OEM and ODM services, supported by our highly professional and creative design team. Custom orders are not only welcome but also encouraged to meet your unique needs.
Q12. How long could your air compressor be used?
A: Our air compressors are built to last, typically boasting a robust lifespan that exceeds 10 years, ensuring long-term reliability and outstanding performance.
Q13. Will you provide some spare parts for the machines?
A: Absolutely! We will supply the necessary spare parts to ensure the continuous functionality and efficiency of your machines, keeping them in top working condition.
Q14. How about your after-sales service?
A: We offer exceptional after-sales support, including detailed online instructions for installation and commissioning. Additionally, our skilled engineers are readily available for comprehensive training sessions and on-site installation assistance, ensuring your complete satisfaction.
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