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 such as coupling power loss, bearing friction, and cooling liquid viscosity. This cutting-edge approach ensures superior performance with reduced total power requirements, making it vastly superior to traditional single-stage compression systems.
Step into the future with our two-stage screw air compressor, a masterpiece of engineering ingenuity. Featuring an innovative dual-stage rotary screw mechanism, it boasts both active and passive screws at each stage. The active screw propels the passive screw via an external power device. The first stage utilizes a low-pressure rate screw group, while the second stage employs a high-pressure rate screw group. Encased in a sealing air film, these screws meticulously compress gas through the three critical phases: suction, pressurization, and exhaust.
First Stage Compression: The journey 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: During 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, completing the compression cycle with precision.
Our compression journey commences 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 is then advanced to the second stage for further compression, ultimately being expelled through the exhaust valve, thus masterfully completing the entire compression process.
Water-cooled compressors harness the unparalleled cooling power of water to provide exceptional lubrication, significantly extending the lifespan of high-friction components. This advanced system circulates cooling water meticulously to clean internal parts and efficiently dissipate heat from the cylinder and compressed gas. The outcome is a highly efficient process that dramatically reduces exhaust temperature and power consumption, resulting in substantial operational cost savings. To sustain peak performance, consistent monitoring and addressing potential scaling issues within the water cooling system are essential.
1) Superior 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 retains uniform efficiency even at non-rated frequencies, ensuring top-notch motor performance at all times.
2) Maintenance-Free Motor:Engineered without internal bearings, our permanent magnet motor eliminates the need for expensive, time-consuming maintenance and bearing replacements, offering a seamless, worry-free experience.
3) Integrated Frequency Converter:Featuring China's premier frequency system, this unit provides a broad speed regulation range and exceptional precision. It seamlessly adapts to actual gas demand, delivering outstanding energy savings for the air compressor.
4) Zero Transmission Loss:Incorporating an integrated shaft structure directly connecting the permanent magnet motor and compressor, this design eliminates couplings and other transmission components, achieving flawless 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 safeguarding 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 greater savings during substantial fluctuations in system gas consumption.
7) Unique Two-Stage Compression Air End:Our two-stage compression screw machine features a specialized air end with first-stage and second-stage compression rotors within a single casing. These rotors operate through gears to achieve the optimal linear speed for each stage, significantly enhancing compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Our innovative internal spray curtain cooling technique delivers exceptional cooling performance. It significantly reduces compressed air temperature, closely approximating isothermal compression, and minimizes pressure loss between stages, thus improving compression efficiency.
9) Minimized Internal Leakage:Utilizing 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, especially 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 unparalleled ex-factory pricing, meticulously structured to give our customers a powerful market edge. Enjoy unmatched value and outstanding competitiveness with every purchase.
2. Direct Purchase Benefits
Receive products straight from our factory, ensuring you access to the most cost-effective and economically beneficial solutions in the industry.
3. Extensive OEM & ODM Expertise
Leverage our exceptional production and management prowess to enjoy exemplary OEM/ODM services. Each product is rigorously customized to meet your exact specifications.
4. Tailored Customization Solutions
We specialize in handling non-standard and export orders, offering bespoke customization for voltage, power, and pressure. Our solutions are crafted to precisely match your unique requirements. Contact us to discuss your needs.
5. Acceptance of Small Orders
Embark on your journey with us by placing a small trial order. Witness the superior quality and performance of our products first-hand.
6. Swift and Efficient Delivery
Benefit from our premium products coupled with prompt and dependable delivery services, designed to enhance your operational efficiency seamlessly.
7. Full Authorization Support
We provide our distributors with comprehensive authorization certificates, empowering you to promote SANZHI brand products with utmost assurance and credibility.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd. stands as a beacon of excellence in the world of screw air compressors and screw vacuum pumps. With over a decade of unparalleled expertise, we proudly offer a diverse range of innovative products. From normal and low-pressure screw air compressors to permanent magnet frequency conversion models, and advanced two-stage compression units. Our specialized compressors cater to laser cutting needs, and our portable solutions are available in both single-tank and double-tank options, powered by either electricity or diesel. Additionally, our cutting-edge screw vacuum pumps exemplify our commitment to technological advancement.
Our state-of-the-art production lines are engineered to enhance manufacturing efficiency. Supported by a dedicated team of over 50 highly skilled professionals, we continuously optimize our management systems, including ERP, to streamline processes, reduce lead times, and ensure the rapid delivery of top-quality products.
Our dedication to superior management is reflected in our ISO9001 quality management system certification. We maintain stringent quality standards through meticulous control processes. Every machine undergoes thorough inspections, from material verification to production audits and pre-delivery assessments, guaranteeing that only the finest products reach our valued customers.
Our customer service is unparalleled, beginning with expert pre-sales consultation to help clients select the ideal air equipment for their specific needs. Our extensive customization options include both aesthetic and functional configurations, and we offer OEM services tailored to unique dealer requirements. Our dedicated sales and service team ensures prompt and efficient after-sales support, reinforcing our commitment to customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering exceptional, reliable products while nurturing long-term customer relationships. We pledge efficient delivery, superior machinery, and competitive pricing, establishing ourselves as your trusted partner for comprehensive compressed air solutions.
Our factory is strategically situated in Xinzheng City, Henan Province, China, just 30 kilometers from Xinzheng International Airport-about an hour's drive. We offer complimentary pick-up services from the airport and 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 innovative screw air compressors.
Q2. How do you control quality?
A: 1. We perform rigorous inspections on all raw materials.
2. Our installation procedures are meticulously managed to ensure precision.
3. Each machine undergoes at least 5 hours of continuous testing before leaving our factory, ensuring 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 are available in multiple 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 requirements.
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, ensuring a seamless and satisfactory experience.
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, providing flexible options to meet diverse financial needs.
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. This ensures peace of mind with superior protection. 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. This schedule guarantees optimal performance and longevity of your equipment.
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). This capability ensures reliable performance even under challenging conditions.
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, allowing you to tailor products to your exact specifications.
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. This durability guarantees a significant return on your investment.
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, minimizing downtime and maintaining productivity.
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 and seamless operation of your machinery.
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