Internal Structure - Frontside
Internal Structure - Backside
Working Principle
Experience unparalleled efficiency with our advanced air compression process! Our multi-stage compression method intelligently reduces the compression ratio at each stage, significantly curtailing inefficiencies like coupling power loss, bearing friction, and cooling liquid viscosity. This innovative approach ensures superior performance with reduced total power requirements, outperforming single-stage compression systems.
Discover the brilliance of our two-stage screw air compressor, a marvel of engineering featuring an innovative dual-stage rotary screw mechanism. Each stage is equipped with its own active and passive screws. The active screw propels the passive screw using an external power device. The first stage employs a low-pressure rate screw group, while the second stage uses a high-pressure rate screw group. Encased in a sealing air film, these screws meticulously compress gas through three essential phases: suction, pressurization, and exhaust.
First Stage Compression: The process begins with the low-pressure rate screw group expertly compressing the gas. The gas enters the compression chamber via a suction valve, where it is gradually squeezed and then transferred to the second stage, driven by the high-speed rotation of the screw rotor.
Second Stage Compression: In this phase, the gas moves into a tighter screw space, undergoing heightened compression at increased temperatures and pressures. The high-pressure gases are then efficiently expelled from the system as the exhaust valve opens, perfectly completing the compression cycle.
Our compression journey begins with natural air being meticulously filtered before entering the first compression stage. Here, it mixes with a precise amount of lubricating oil, and this mixture is compressed to interstage pressure. The compressed gas then traverses through a cooling channel, encountering a substantial amount of oil mist, which significantly lowers its temperature. This cooled gas then advances to the second stage for further compression, ultimately being expelled through the exhaust valve, thus masterfully completing the entire compression process.
Water-cooled compressors leverage the unmatched cooling capability of water to deliver superior lubrication and significantly extend the life of high-friction components. This innovative system circulates cooling water to meticulously clean internal parts and dissipate heat from the cylinder and compressed gas. The result is a highly efficient process that dramatically lowers exhaust temperature and power consumption, leading to substantial operational cost savings. Maintaining peak performance requires consistent monitoring and addressing potential scaling issues within the water cooling system.
1) Superior Efficiency of PM Motor:Our cutting-edge permanent magnet motor offers an extensive constant torque and weak magnetic range, boosting efficiency by an extraordinary 20-30% compared to conventional motors. It maintains uniform efficiency even at non-rated frequencies, ensuring superior motor performance at all times.
2) Maintenance-Free Motor:Designed without internal bearings, our permanent magnet motor eliminates the need for costly, time-consuming maintenance and bearing replacements, providing a seamless, worry-free experience.
3) Integrated Frequency Converter:Equipped with China's leading frequency system, this unit offers an extensive speed regulation range and exceptional precision. It adapts effortlessly to actual gas demand, delivering remarkable energy-saving benefits for the air compressor.
4) Zero Transmission Loss:Featuring an integrated shaft structure directly connecting the permanent magnet motor and compressor, this design eliminates couplings and other transmission components, achieving impeccable transmission efficiency of 100%.
5) Variable Frequency and Soft Start:Our motor performs variable frequency start and soft start, significantly reducing impact on power grid equipment and protecting against potential electrical component damage.
6) Enhanced Energy Efficiency:With a frequency conversion range from 25% to 100%-compared to the standard range of 50% to 100%-our system offers over 30% energy savings versus fixed-speed compressors. It also saves approximately 5% more energy than standard variable frequency compressors, with even higher savings during significant fluctuations in system gas consumption.
7) Unique Two-Stage Compression Air End:Our two-stage compression screw machine features a specialized air end, incorporating first-stage and second-stage compression rotors within a single casing. These rotors operate through gears to achieve optimal linear speed for each stage, significantly boosting compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Our groundbreaking internal spray curtain cooling technique offers exceptional cooling performance. It significantly reduces compressed air temperature, closely approximating isothermal compression, and minimizes pressure loss between stages, thereby enhancing compression efficiency.
9) Minimized Internal Leakage:Employing a two-stage compression method reduces the compression ratio for each stage, thereby minimizing internal leakage from high-pressure to low-pressure ends and enhancing volumetric efficiency.
10) Noise Reduction:The two-stage compression design significantly lowers the compression ratio, resulting in a substantial reduction in operational noise, particularly during unloading.
11) Simplified Maintenance and Service:In addition to the screw air end, our two-stage compressor unit retains similar systems and structures to single-stage compressors, ensuring straightforward maintenance and user convenience.
1. Unrivaled Price Competitiveness
Benefit from our unbeatable ex-factory pricing, designed to give our customers a formidable edge in the market, ensuring unmatched value and competitiveness.
2. Direct Purchase Benefits
Receive products directly from our factory, guaranteeing you the most cost-effective and economically advantageous solutions available.
3. Extensive OEM & ODM Expertise
Our exceptional production and management capabilities enable us to deliver outstanding OEM/ODM services, meticulously customized to your precise specifications.
4. Tailored Customization Solutions
We excel in handling non-standard and export orders, offering bespoke customization for voltage, power, and pressure to perfectly align with your specific requirements. Contact us to discuss your needs.
5. Acceptance of Small Orders
Initiate your journey with us by placing a small trial order and experience the superior quality of our products first-hand.
6. Swift and Efficient Delivery
Take advantage of our top-tier products combined with rapid and reliable delivery services to enhance your operational efficiency.
7. Full Authorization Support
We provide our distributors with complete authorization certificates, empowering you to market SANZHI brand products with utmost assurance and credibility.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the manufacturing of top-tier screw air compressors and screw vacuum pumps. With over ten years of unmatched industry experience, we specialize in an extensive array of products featuring cutting-edge technology. Our collection includes normal pressure and low-pressure screw air compressors, permanent magnet frequency conversion models, two-stage compression units, and specialized compressors for laser cutting. We also offer versatile mobile solutions with single-tank and double-tank options, available in both electric and diesel variants, as well as advanced screw vacuum pumps.
In production, our state-of-the-art assembly lines are designed to maximize manufacturing efficiency. With a dedicated team of over 50 skilled professionals, we continually refine our management systems, including ERP, to streamline operations, reduce lead times, and ensure the swift delivery of premium-quality products.
In management, our commitment to excellence is evidenced by our ISO9001 quality management system certification. We uphold rigorous quality standards, executing meticulous quality control processes. Each machine undergoes extensive inspections, including material validation, production audits, and pre-delivery evaluations, ensuring that only superior products reach our customers.
In customer service, we excel in pre-sales consultation, providing expert guidance to help customers choose the perfect air equipment to meet their specific requirements. Our high level of customization covers both appearance and configuration, and we offer OEM services to cater to unique dealer demands. Our dedicated sales and service team ensures efficient and prompt after-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering exceptional, stable products and fostering long-term customer relationships. With our commitment to efficient delivery, top-tier machines, and competitive pricing, we are your trusted partner for comprehensive compressed air solutions.
Our factory is strategically located in Xinzheng City, Henan Province, China. We offer complimentary pick-up services from Xinzheng International Airport, which is just 30 kilometers away, approximately an hour's drive. We warmly invite you to visit our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer with over a decade of expertise in specializing in screw air compressors.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections on all raw materials.
2. Our installation procedures are meticulously controlled to ensure precision.
3. Each machine undergoes a minimum of 5 hours of continuous testing before leaving our factory to guarantee optimal performance.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/Min)
2. The desired working pressure (Unit: PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (V/Hz)
4. Any additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will design a tailored solution for you!
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: Sanzhi air compressors come in a variety of voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized to meet your specific needs.
Q6. How long is the delivery time?
A: For standard voltage orders, we promise a remarkably swift processing time of just 15 working days upon confirmation. For non-standard specifications, please connect with our dedicated sales team for precise timelines and tailored assistance.
Q7. What's the payment term?
A: Our payment terms are structured as follows: an initial 30% T/T deposit, an additional 40% T/T prior to shipment, and the remaining 30% T/T upon receipt of the B/L copy. We accept payments in both USD and RMB for your utmost convenience.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty that covers the entire machine, plus an exclusive two-year warranty for the screw air compressor. Please note, consumable spare parts are not included in this warranty.
Q9. What about the maintenance?
A: Initial maintenance should be performed after 500 hours of operation. Subsequent maintenance is required every 2000-3000 hours, with adjustments based on the actual working environment.
Q10. Can machines be run in high-temperature environments?
A: Absolutely! Our machines are expertly engineered to function efficiently in high-temperature conditions, boasting an optimal working temperature range from -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Yes, indeed! We offer both OEM and ODM services, supported by our professional and innovative design team. Custom orders are highly encouraged and welcome.
Q12. How long could your air compressor be used?
A: Typically, our air compressors are built to last, boasting a robust lifespan that exceeds 10 years, ensuring reliable and long-term performance.
Q13. Will you provide some spare parts for the machines?
A: Certainly! We provide essential spare parts to ensure the ongoing functionality and efficiency of your machines.
Q14. How about your after-sales service?
A: We offer exceptional after-sales support, including online instructions for installation and commissioning. Our skilled engineers are also available for training sessions and on-site installation assistance, ensuring your complete satisfaction.
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