Internal Structure - Frontside
Internal Structure - Backside
Working Principle
Experience unparalleled efficiency with our advanced air compression process! While single-stage compression aims for optimal power usage, real-world scenarios often lead to increased power consumption due to factors like coupling power loss, bearing friction, and cooling liquid viscosity. By intelligently reducing the compression ratio at each stage, our multi-stage compression method significantly curtails these inefficiencies, ensuring superior performance with reduced total power requirements.
Discover the brilliance of our two-stage screw air compressor, a marvel of engineering featuring an innovative dual-stage rotary screw mechanism. Each stage comes with its own active and passive screws, where 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: This 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, encountering 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 starts 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 efficiency of water to deliver superior lubrication and extend the life of high-friction components. The circulating cooling water meticulously cleans internal parts and dissipates heat from both the cylinder and compressed gas. This process significantly reduces exhaust temperature and power consumption, resulting in substantial operational cost savings. Regular monitoring and addressing potential scaling issues within the water cooling system are vital to maintaining optimal performance.
1) Superior Efficiency of PM Motor:Our cutting-edge permanent magnet motor offers extensive constant torque and a broad weak magnetic range, boosting efficiency by an extraordinary 20-30% over conventional motors. It maintains uniform efficiency even at non-rated frequencies, ensuring top-tier motor performance at all times.
2) Maintenance-Free Motor:Engineered without internal bearings, our permanent magnet motor eliminates the need for costly and time-consuming maintenance and bearing replacements, ensuring a seamless and worry-free experience.
3) Integrated Frequency Converter:Outfitted with China's premier frequency system, this unit offers an extensive speed regulation range and exceptional precision. It adapts effortlessly to actual gas demand, delivering outstanding energy-saving advantages for the air compressor.
4) Zero Transmission Loss:Featuring an integrated shaft structure that directly connects the permanent magnet motor and compressor, this design eliminates couplings and other transmission components, achieving perfect transmission efficiency of 100%.
5) Variable Frequency and Soft Start:Our motor supports 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 achieves 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 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 via gears to attain optimal linear speed for each stage, significantly boosting compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Our innovative internal spray curtain cooling method delivers exceptional cooling performance. It substantially reduces compressed air temperature, closely approximating isothermal compression, and minimizes pressure loss between stages, thereby boosting 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 notable reduction in operational noise, especially during unloading.
11) Simplified Maintenance and Service:Alongside the screw air end, our two-stage compressor unit maintains similar systems and structures to single-stage compressors, ensuring straightforward maintenance and user convenience.
1. Unrivaled Price Competitiveness
Our direct ex-factory pricing positions our customers at the forefront of market competition, granting them an exceptional and unmatched market advantage.
2. Direct Purchase Benefits
By sourcing products directly from our factory, we guarantee the most economically beneficial solutions, maximizing your savings and investment returns.
3. Extensive OEM & ODM Expertise
With robust production and management capabilities, we deliver superior OEM/ODM services that are meticulously tailored to your unique specifications and demands.
4. Tailored Customization Solutions
We specialize in customizing non-standard and export orders, adjusting specifications such as voltage, power, and pressure to precisely meet your specific requirements. Contact us for a personalized consultation.
5. Acceptance of Small Orders
Start experiencing the exceptional quality of our products with a small trial order, allowing you to test and trust our reliability.
6. Swift and Efficient Delivery
Benefit from our premium products paired with prompt and efficient delivery services, ensuring your operations run smoothly and without delay.
7. Full Authorization Support
We provide our distributors with comprehensive authorization certificates, empowering you to sell SANZHI brand products with full confidence and credibility.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd. is an industry leader specializing in the manufacturing of top-tier screw air compressors and vacuum pumps. With over a decade of unparalleled expertise, our comprehensive product lineup includes a variety of advanced models such as 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 units, both electric and diesel mobile screw air compressors, and cutting-edge screw vacuum pumps.
Our state-of-the-art assembly lines are the backbone of our highly efficient manufacturing process. Supported by a dedicated team of over 50 skilled employees, we continuously enhance our management systems like ERP to minimize lead times and ensure the swift delivery of premium-quality products.
Our factory has proudly earned ISO9001 quality management system certification, reflecting our commitment to stringent quality standards. We implement rigorous quality control measures, conducting comprehensive inspections including material checks, production assessments, and pre-delivery evaluations to ensure only the highest quality machines leave our facility.
We excel in customer service, offering expert pre-sales consultations to help customers choose the ideal air equipment tailored to their specific needs. Our customization capabilities extend to both appearance and configuration, and we provide OEM services to meet unique dealer requirements. Our professional sales and service team ensures prompt and efficient customer support, both pre- and post-sale.
At Sanzhi (Henan) Compressor Co., Ltd., our mission is to deliver superior and stable products while fostering lasting relationships with our customers. We offer efficient delivery, top-quality machines, and competitive pricing, making us your trusted partner for comprehensive compressed air solutions.
Conveniently located in Xinzheng City, Henan Province, China, our factory is just 30 kilometers-about an hour's drive-from Xinzheng International Airport. We offer complimentary pick-up services to welcome you 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 guarantee 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, offering you the utmost convenience.
Q8. How about your warranty?
A: We proudly extend 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: The 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 environment?
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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