Internal Structure - Frontside
Internal Structure - Backside
Working Principle
In the intricate world of air compression technology, achieving optimal efficiency in single-stage compression ideally requires the power expended to match that of multi-stage compression efforts. Yet, practical applications often face challenges like coupling power losses, bearing friction, and the viscosity of cooling liquids, all contributing to increased power consumption. Multi-stage compression is ingeniously designed to address these inefficiencies by reducing the compression ratio at each stage, dramatically lowering the overall power demand compared to single-stage compression.
Presenting our revolutionary two-stage screw air compressor, a marvel of engineering featuring a dual-stage rotary screw system, where each stage is outfitted with both an active and passive screw. The active screw drives the passive screw through an external power mechanism. The first stage is defined by a low-pressure rate screw group, while the second stage boasts a high-pressure rate screw group. Encasing each screw is a sophisticated sealing air film that navigates the gas through three pivotal phases: suction, pressurization, and exhaust, ensuring seamless compression.
First Stage Compression: The compression journey commences as the low-pressure rate screw group begins its task of compressing the incoming gas. Entering through a specialized suction valve, the gas is expertly compressed and then conveyed to the second stage, propelled by the dynamic rotation of the screw rotor.
Second Stage Compression: At this crucial juncture, the gas is channeled into a more constrained screw space, where it undergoes intensified compression under heightened temperatures and pressures. The high-pressure gases are then efficiently expelled from the system as the exhaust valve opens, marking the successful completion of the compression cycle.
The process kicks off with the natural air being meticulously filtered before it enters the initial compression stage, where it merges with a precise amount of lubricating oil. This mixture is expertly compressed to reach interstage pressure, flowing through an advanced cooling channel. Here, it encounters a significant quantity of oil mist, which effectively reduces its temperature. This cooled gas then proceeds to the second stage for further compression, ultimately being released through the exhaust valve, thereby completing the comprehensive compression cycle with finesse.
Water-cooled compressors harness the robust cooling capabilities of water to deliver exceptional lubrication and extend the lifespan of components susceptible to friction. As the cooling water circulates, it not only cleans internal parts but also efficiently dissipates heat from both the cylinder and the compressed gas. This advanced cooling process drastically lowers exhaust temperatures and reduces power consumption, offering substantial savings on operational costs. To maintain optimal performance, it is crucial to regularly monitor and manage potential scaling issues within the water cooling system.
1) Unmatched Efficiency of PM Motor:Our state-of-the-art permanent magnet motor delivers an extensive constant torque and weak magnetic range, enhancing efficiency by an impressive 20-30% compared to traditional motors. It maintains its superior efficiency even at non-rated frequencies, ensuring top-notch motor performance at all times.
2) Maintenance-Free Motor:Designed without internal bearings, our permanent magnet motor eliminates the need for costly and time-consuming maintenance and bearing replacements, ensuring a seamless and hassle-free experience.
3) Advanced Integrated Frequency Converter:Equipped with China's leading frequency system, this unit provides a wide speed regulation range and unparalleled precision. It effortlessly adapts to actual gas demand, delivering significant energy-saving benefits for the air compressor.
4) Perfect Zero Transmission Loss:With an integrated shaft structure directly linking the permanent magnet motor and compressor, this design eradicates couplings and other transmission components, achieving flawless transmission efficiency of 100%.
5) Variable Frequency and Gentle Soft Start:Our motor performs a variable frequency start and soft start, significantly reducing the impact on power grid equipment and protecting against potential damage to electrical components.
6) Superior Energy Efficiency:Boasting a frequency conversion range from 25% to 100%-surpassing the standard range of 50% to 100%-our system offers over 30% energy savings compared to fixed-speed compressors. Additionally, it saves approximately 5% more energy than standard variable frequency compressors, with even greater savings during substantial fluctuations in system gas consumption.
7) Unique & Efficient Two-Stage Compression Air End:Our two-stage compression screw machine features a specialized air end, integrating first-stage and second-stage compression rotors within a single casing. These rotors operate through gears to achieve optimal linear speed for each stage, substantially boosting compression efficiency.
8) Revolutionary Internal Spray Curtain Cooling:Our groundbreaking internal spray curtain cooling technique provides exceptional cooling performance. It dramatically lowers compressed air temperature, closely mirroring isothermal compression, and reduces pressure loss between stages, thereby enhancing compression efficiency.
9) Minimized Internal Leakage:Adopting a two-stage compression method reduces the compression ratio for each stage, thereby minimizing internal leakage from high-pressure to low-pressure ends and significantly enhancing volumetric efficiency.
10) Remarkable Noise Reduction:The two-stage compression design significantly lessens the compression ratio, resulting in a notable decrease in operational noise, especially during unloading.
11) Effortless Maintenance and Service:Aside from the screw air end, our two-stage compressor unit maintains similar systems and structures to single-stage compressors, ensuring easy maintenance and user convenience.
1. Unrivaled Price Competitiveness
We offer direct ex-factory pricing that gives our customers a formidable competitive edge in the marketplace, ensuring you receive unmatched value while maintaining exceptional quality.
2. Direct Purchase Benefits
Our products are delivered straight from our factory, offering you the most economical solutions available. By eliminating the middlemen, we pass substantial savings directly to you.
3. Extensive OEM & ODM Expertise
Our powerful production and management capabilities enable us to provide superior OEM/ODM services, carefully customized to meet your precise requirements, ensuring you obtain exactly what you desire.
4. Tailored Customization Solutions
We welcome both non-standard and export orders, customizing elements such as voltage, power, and pressure to meet your distinct requirements. Share your specific needs for personalized solutions.
5. Acceptance of Small Orders
Discover the outstanding quality of our products by beginning with a small trial order, allowing you to evaluate our superior standards before committing to larger quantities.
6. Swift and Efficient Delivery
Benefit from our high-quality products paired with our prompt and efficient delivery services, ensuring your orders are fulfilled swiftly and reliably for your convenience.
7. Full Authorization Support
We provide our distributors with full authorization certificates, empowering you to sell our SANZHI brand products with absolute confidence and official endorsement.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in manufacturing, renowned for its exceptional screw air compressors and vacuum pumps with over 10 years of expertise. Our extensive product lineup includes cutting-edge solutions like standard and low-pressure screw air compressors, energy-efficient permanent magnet frequency conversion units, robust two-stage compressors, and models tailored for laser cutting. We also offer versatile mobile options in single and double-tank configurations, powered by both electric and diesel engines, as well as innovative screw vacuum pumps.
Our production facilities are equipped with state-of-the-art assembly lines that streamline the manufacturing process for maximum efficiency. Our committed team of over 50 professionals relentlessly enhances our management systems, including ERP, to reduce lead times and ensure the rapid delivery of top-notch products.
Our management system proudly carries the ISO9001 quality management certification, reflecting our dedication to high-quality standards. We enforce rigorous quality control measures, conducting thorough inspections on materials, production processes, and pre-delivery evaluations, guaranteeing that only the most superior products reach our clients.
Our customer service team excels in pre-sales consultations, providing expert advice to help clients choose the perfect air equipment solution. We offer extensive customization options for both appearance and configuration and provide OEM services to satisfy unique dealer requirements. Our dedicated sales and service team ensures quick and effective responses for all after-sales support needs.
At Sanzhi (Henan) Compressor Co., Ltd, we are steadfast in delivering superior, reliable products while cultivating enduring customer relationships. With speedy delivery, exceptional machines, and competitive pricing, we stand as your trustworthy partner for all-encompassing compressed air solutions.
Our factory is strategically located in Xinzheng City, Henan Province, China, offering complimentary pick-up services from Xinzheng International Airport, which is just a short 30-kilometer drive away. We warmly invite you to visit our company and experience our hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer with a specialized focus on screw air compressors, supported by over a decade of professional experience.
Q2. How do you control quality?
A: 1. We conduct exhaustive inspections of all incoming raw materials.
2. Our installation procedures are managed with meticulous attention to detail.
3. Each machine is subject to a rigorous testing process, running for a minimum of 5 continuous hours to ensure optimal performance before it leaves our factory.
Q3. What information must I provide to get the suitable machine?
1. Specify the required air delivery capacity (Unit: CFM or m³/Min)
2. Indicate the desired working pressure (Unit: PSI, Bar, or Mpa)
3. Provide voltage and frequency specifications applicable in your country (V/Hz)
4. List any additional accessories needed (e.g., air tanks, filters, air dryers).
Share these details with us, and we will craft a perfectly tailored solution to meet your needs!
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 an array of voltage options, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized to align with your precise 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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