Internal Structure - Frontside
Internal Structure - Backside
Working Principle
Experience unparalleled efficiency with our advanced air compression process! Unlike single-stage compression, which can fall victim to coupling power loss, bearing friction, and cooling liquid viscosity, our intelligent multi-stage compression method triumphs by reducing the compression ratio at each stage. This results in significantly lower power consumption and higher performance, ensuring that your operations are more efficient than ever.
Discover the brilliance of our two-stage screw air compressor, a masterpiece of engineering featuring a pioneering dual-stage rotary screw mechanism. Each stage is equipped with its own active and passive screws, where the active screw drives the passive screw using an external power source. 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 critical phases: suction, pressurization, and exhaust.
First Stage Compression: This process starts with the low-pressure rate screw group proficiently compressing the gas. The gas enters the compression chamber via a suction valve, where it is gradually compressed 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 enters a more confined screw space, encountering increased compression at elevated temperatures and pressures. The high-pressure gases are then efficiently expelled from the system through the exhaust valve, completing the compression cycle with precision.
Our compression journey begins with natural air being meticulously filtered before it enters the first compression stage. Here, it combines with a precise amount of lubricating oil, and this mixture is compressed to interstage pressure. The compressed gas then travels through a cooling channel, encountering a substantial amount of oil mist, which significantly reduces 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 harness the unmatched cooling power of water, providing superior lubrication and significantly extending the lifespan of high-friction components. As the cooling water circulates, it meticulously cleanses internal parts and dissipates heat from both the cylinder and compressed gas. This highly efficient process dramatically reduces exhaust temperature and power consumption, resulting in substantial operational cost savings. Consistent monitoring and addressing potential scaling issues within the water cooling system are critical to maintaining peak performance.
1) Superior Efficiency of PM Motor:Our state-of-the-art permanent magnet motor offers an extensive constant torque and weak magnetic range, enhancing efficiency by an extraordinary 20-30% over conventional motors. Even at non-rated frequencies, it maintains consistent efficiency, ensuring superior 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, providing a seamless, worry-free experience.
3) Integrated Frequency Converter:Equipped with China's leading frequency system, this unit boasts 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 that directly connects the permanent magnet motor and compressor, this design eradicates couplings and other transmission components, achieving a 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 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 delivers 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
By providing direct ex-factory pricing, we empower our customers to gain an unprecedented market advantage, keeping them steps ahead of the competition.
2. Direct Purchase Benefits
Our products are sourced directly from our factory, ensuring you benefit from the most economically favorable solutions available.
3. Extensive OEM & ODM Expertise
Our robust production and management capabilities enable us to deliver outstanding OEM/ODM services, meticulously tailored to meet your specialized requirements.
4. Tailored Customization Solutions
We cater to non-standard and export orders, customizing specifics such as voltage, power, and pressure to perfectly align with your unique requirements. Reach out to discuss your needs.
5. Acceptance of Small Orders
Initiate your experience with our superior products by placing a small trial order and witness our excellence firsthand.
6. Swift and Efficient Delivery
Benefit from our high-quality products paired with prompt and efficient delivery services, ensuring your satisfaction.
7. Full Authorization Support
We provide our distributors with comprehensive authorization certificates, allowing you to sell SANZHI brand products with utmost confidence.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a premier manufacturer excelling in the production of screw air compressors and screw vacuum pumps, boasting over a decade of industry experience. Our diverse product portfolio features state-of-the-art screw air compressors and vacuum pumps including normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion models, two-stage compression units, screw air compressors for laser cutting, single-tank and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and advanced screw vacuum pumps.
In production, our cutting-edge assembly lines facilitate the most efficient manufacturing processes. Thanks to our dedicated team of over 50 employees, we continuously optimize management systems such as ERP to minimize lead times and ensure the swift delivery of high-quality products.
In management, our factory proudly holds ISO9001 quality management system certification. We adhere to stringent quality standards, implementing rigorous quality control processes. Every machine undergoes comprehensive inspections, including material checks, production assessments, and pre-delivery evaluations, ensuring only the finest products leave our facility.
In customer service, we excel in pre-sales consultation, offering professional guidance to help customers select the ideal air equipment tailored to their specific needs. Our high level of customization extends to both appearance and configuration, and we provide OEM services to meet unique dealer demands. For after-sales support, our professional sales and service team ensures prompt and efficient customer responses.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior, stable products and fostering long-term customer relationships. With efficient delivery, top-quality machines, and competitive pricing, we are your reliable partner for comprehensive compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary pick-up services from Xinzheng International Airport, located just 30 kilometers away-about an hour's drive. We warmly welcome your visit to our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, backed by over 10 years of expertise.
Q2. How do you control quality?
A: 1. We rigorously inspect all raw materials.
2. Installation procedures are meticulously controlled.
3. Each machine undergoes a minimum of 5 hours of continuous testing before leaving our factory to ensure optimal performance.
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!
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 various 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 assure an impressively swift processing time of merely 15 working days upon order confirmation. For non-standard specifications, kindly reach out to our dedicated sales team for precise timelines and personalized assistance.
Q7. What's the payment term?
A: Our payment terms are strategically structured for your convenience: an initial 30% T/T deposit, followed by 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.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty covering the entire machine, complemented by an exclusive two-year warranty for the screw air compressor. Please note, consumable spare parts are excluded from this warranty.
Q9. What about the maintenance?
A: Initial maintenance should be conducted after 500 hours of operation. Following that, maintenance is required every 2000-3000 hours, adjustable based on the actual working environment.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to perform efficiently in high-temperature conditions, with 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 provide both OEM and ODM services, supported by our professional and innovative design team. Custom orders are highly encouraged and welcomed.
Q12. How long could your air compressor be used?
A: Typically, our air compressors are engineered for durability, 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 supply essential spare parts to ensure the continued functionality and efficiency of your machines.
Q14. How about your after-sales service?
A: We provide exceptional after-sales support, including online installation and commissioning instructions. Our skilled engineers are also available for training sessions and on-site installation assistance, ensuring your complete satisfaction.
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