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 exceptional cooling properties of water to deliver superior lubrication and extend the life of high-friction components. As cooling water circulates through the system, it meticulously cleans internal parts while dissipating heat from the cylinder and compressed gas. This highly effective process significantly reduces exhaust temperature and power consumption, leading to substantial operational cost savings. Regular monitoring and addressing potential scaling issues within the water cooling system are essential to maintain peak performance.
1) Superior Efficiency of PM Motor:Our cutting-edge permanent magnet motor provides an extensive constant torque and weak magnetic range, enhancing efficiency by an impressive 20-30% compared to conventional motors. It maintains consistent efficiency even at non-rated frequencies, ensuring top-tier motor performance at all times.
2) Maintenance-Free Motor:Our permanent magnet motor, designed without internal bearings, eliminates the need for expensive and time-consuming maintenance and bearing replacements, offering a seamless, worry-free experience.
3) Integrated Frequency Converter:Featuring one of China's premier frequency systems, this unit offers a broad 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:With an integrated shaft structure that directly connects the permanent magnet motor and compressor, this design eradicates couplings and other transmission components, achieving an impeccable transmission efficiency of 100%.
5) Variable Frequency and Soft Start:Our motor performs variable frequency and soft start, significantly reducing impact on power grid equipment and protecting against potential electrical component damage.
6) Enhanced Energy Efficiency:Our system delivers over 30% energy savings versus fixed-speed compressors, thanks to a frequency conversion range from 25% to 100%-compared to the standard range of 50% to 100%. It also saves about 5% more energy than standard variable frequency compressors, especially 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, 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, markedly 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:The 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
We offer direct ex-factory pricing that propels our customers ahead of the competition with unparalleled market advantage.
2. Direct Purchase Benefits
Our products come straight from our factory, ensuring you receive the most economically beneficial solutions available.
3. Extensive OEM & ODM Expertise
Our solid production and management capabilities empower us to provide exceptional OEM/ODM services, precisely tailored to your unique specifications.
4. Tailored Customization Solutions
We accommodate non-standard and export orders, customizing specifications such as voltage, power, and pressure to meet your specific needs. Contact us to discuss your requirements.
5. Acceptance of Small Orders
Experience the exceptional quality of our products with a small trial order to start.
6. Swift and Efficient Delivery
Leverage our premium products coupled with prompt and efficient delivery services for your benefit.
7. Full Authorization Support
We offer our distributors comprehensive authorization certificates, enabling you to sell SANZHI brand products with absolute confidence.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a distinguished manufacturer in the field of screw air compressors and vacuum pumps. With more than a decade of dedicated industry experience, our innovative product range includes cutting-edge screw air compressors and vacuum pumps, such as normal pressure/low-pressure models, permanent magnet frequency conversion units, two-stage compression systems, screw air compressors specialized for laser cutting, mobile screw air compressors available in single-tank and double-tank configurations, as well as electric and diesel variants, and sophisticated screw vacuum pumps.
Our state-of-the-art assembly lines ensure ultra-efficient production processes. Supported by a dedicated team of over 50 skilled employees, we continuously enhance our management systems, including ERP, to drastically reduce lead times and guarantee the timely delivery of premium-quality products.
Our factory is ISO9001 certified, adhering to the highest quality management standards. We implement stringent quality control protocols, where each machine undergoes exhaustive inspections-covering material checks, production assessments, and pre-delivery evaluations-ensuring that only top-notch products reach our customers.
Our customer service excels in pre-sales consultation, providing expert advice to help clients choose the most suitable air equipment. We offer extensive customization options, from appearance to configuration, and provide OEM services to cater to specific dealer needs. Our professional sales and service team ensures prompt and effective after-sales support, delivering exceptional customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering superior, stable products and building lasting customer relationships. With efficient delivery, high-quality machinery, and competitive pricing, we are your dependable partner for comprehensive compressed air solutions.
Located conveniently in Xinzheng City, Henan Province, China, our factory offers complimentary pick-up services from Xinzheng International Airport, just a short 30-kilometer, one-hour drive away. We warmly invite you to visit our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with over 10 years of expertise in the industry.
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 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 requirements.
Q6. How long is the delivery time?
A: For standard voltage orders, we are proud to offer 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 designed for your convenience: an initial 30% T/T deposit, 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, plus an exclusive two-year warranty for the screw air compressor. Please note that consumable spare parts are not included in this warranty.
Q9. What about the maintenance?
A: For optimal performance, 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, backed by our professional and innovative design team. Custom orders are highly encouraged and welcome.
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 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.
){kind=link}