Internal Structure - Frontside
Internal Structure - Backside
Working Principle
Venturing into the realm of air compression, the pursuit of supreme efficiency in single-stage compression necessitates that the energy consumed matches the combined force of multi-stage compression. Yet, real-world operations are fraught with shortcomings such as coupling power loss, bearing friction, and cooling liquid viscosity, which escalate energy consumption. Multi-stage compression ingeniously mitigates these inefficiencies by reducing the compression ratio at each stage, thereby significantly diminishing the total power demand compared to the single-stage approach.
Presenting our revolutionary two-stage screw air compressor, a marvel of engineering featuring a dual-stage rotary screw system. Each stage is powered by an engaging interplay of active and passive screws, where the active screw drives its counterpart using an external power source. The initial stage hosts a low-pressure rate screw arrangement, while the subsequent stage is defined by its high-pressure rate screws. The compression process is meticulously managed by an enveloping sealing air film, facilitating gas compression through the distinct phases of suction, pressurization, and release.
First Stage Compression: Embarking on the compression journey, the low-pressure rate screw group initiates the process by drawing gas into the chamber via a suction valve. Here, the gas is progressively compressed, transported with precision to the subsequent stage through the dynamic rotation of the screw rotor.
Second Stage Compression: As the gas advances, it is subjected to heightened temperatures and pressures within a more confined screw space. The high-pressure gases are then efficiently evacuated from the system as the exhaust valve opens, marking the completion of this sophisticated compression cycle.
The process begins with ambient air undergoing meticulous filtration before entering the initial compression phase, wherein it is amalgamated with a modest volume of lubricating oil. This mixture is then compressed to interstage pressure and proceeds through a cooling channel, where it encounters a significant oil mist that substantially lowers its temperature. The now-cooled gas advances to the final compression stage, culminating in its release through the exhaust valve, thus completing the intricate and efficient compression sequence.
Water-cooled compressors are designed with the outstanding cooling prowess of water, significantly enhancing lubrication and extending the life of components subject to wear. As the cooling water circulates, it meticulously cleans the internal parts and efficiently dissipates heat from both the cylinder and the compressed gas. This highly effective process not only drastically reduces exhaust temperature but also minimizes power consumption, leading to substantial operational cost savings. Regular monitoring and addressing of potential scaling issues within the water-cooling system are essential to sustaining optimal performance.
1) Superior Efficiency of PM Motor:Our state-of-the-art permanent magnet motor showcases a broad constant torque and weak magnetic range, elevating efficiency by an exceptional 20-30% compared to traditional motors. Even when operating at non-rated frequencies, it maintains consistent efficiency, ensuring unwavering top-tier performance at all times.
2) Maintenance-Free Motor:Crafted without internal bearings, our permanent magnet motor eliminates the necessity for costly and time-consuming maintenance and bearing replacements, providing an effortless, worry-free experience.
3) Integrated Frequency Converter:Equipped with China's leading frequency system, this unit boasts a vast speed regulation range and unparalleled precision. It effortlessly adapts to actual gas demand, delivering remarkable energy-saving benefits for the air compressor.
4) Zero Transmission Loss:Featuring an integrated shaft structure that seamlessly connects the permanent magnet motor and compressor, this innovative design eliminates couplings and other transmission components, achieving impeccable transmission efficiency of 100%.
5) Variable Frequency and Soft Start:Our motor executes variable frequency start and soft start, significantly diminishing impact on power grid equipment and safeguarding against potential damage to electrical components.
6) Enhanced Energy Efficiency:Boasting a frequency conversion range from 25% to 100%, as opposed to the typical range of 50% to 100%, our system achieves over 30% energy savings compared to fixed speed compressors. It also conserves about 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 is equipped with a specialized air end, integrating first-stage and second-stage compression rotors within a singular casing. These rotors function via gears to achieve the ideal linear speed for each stage, substantially amplifying compression efficiency.
8) Innovative Internal Spray Curtain Cooling:Our groundbreaking internal spray curtain cooling technique offers exceptional cooling performance. It significantly lowers compressed air temperature, closely approximating isothermal compression, and diminishes pressure loss between stages, thereby enhancing compression efficiency.
9) Minimized Internal Leakage:Employing a two-stage compression method lessens the compression ratio for each stage, thus minimizing internal leakage from high-pressure to low-pressure ends and augmenting volumetric efficiency.
10) Noise Reduction:The two-stage compression design considerably reduces the compression ratio, culminating in a substantial decline in operational noise, particularly during unloading.
11) Simplified Maintenance and Service:Aside from the screw air end, our two-stage compressor unit maintains systems and structures similar to single-stage compressors, ensuring straightforward maintenance and enhanced user convenience.
1. Unrivaled Price Competitiveness
We proudly present direct ex-factory pricing that bestows our customers with a formidable competitive advantage in the marketplace. This ensures that you benefit from unbeatable value while maintaining the highest standards of quality.
2. Direct Purchase Benefits
Our products are delivered directly from our manufacturing facility, guaranteeing the most economical solutions available. This eliminates the middleman, allowing us to transfer those cost savings directly to you, enhancing your purchasing power.
3. Extensive OEM & ODM Expertise
With our strong production and management prowess, we are equipped to offer exceptional OEM/ODM services. These services are meticulously crafted to align perfectly with your specific demands, ensuring you achieve the precise product vision you have in mind.
4. Tailored Customization Solutions
We welcome both non-standard and export orders, offering customization on aspects such as voltage, power, and pressure to meet your distinct requirements. Share your specific needs with us and experience bespoke solutions that cater to your unique demands.
5. Acceptance of Small Orders
Immerse in the exceptional quality of our offerings by initiating a small trial order, enabling you to evaluate our high standards before committing to larger volumes, ensuring a gratifying experience.
6. Swift and Efficient Delivery
Delight in our premium products paired with our swift and reliable delivery services, assuring that your orders are processed and dispatched promptly and efficiently, fulfilling your needs with ease.
7. Full Authorization Support
We furnish our distributors with complete authorization certificates, allowing you to market our prestigious SANZHI brand products with utmost confidence and official endorsement, empowering your sales efforts.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the realm of screw air compressors and vacuum pumps. With over ten years of unparalleled industry expertise, we pride ourselves on our cutting-edge product range. Our extensive selection includes high-performance normal and low-pressure screw air compressors, dynamic permanent magnet frequency conversion models, efficient two-stage compression units, and specialized screw air compressors for laser cutting. We also offer versatile single-tank and double-tank mobile screw air compressors, along with both electric and diesel-powered mobile options. Furthermore, our advanced screw vacuum pumps set industry standards for innovation and efficiency.
Our production prowess is evident through our state-of-the-art assembly lines, ensuring the most efficient manufacturing processes available. Our dedicated team of over 50 skilled professionals is committed to refining management systems, such as ERP, to minimize lead times and guarantee the timely delivery of superior products.
Our management excellence is underscored by our ISO9001 quality management system certification. We adhere to the highest quality standards, implementing comprehensive quality control protocols. Every machine undergoes stringent inspections, including detailed material checks, thorough production assessments, and meticulous pre-delivery evaluations, ensuring that only the finest products reach our customers.
Outstanding customer service defines our approach, with pre-sales consultation that provides expert guidance to help clients select the perfect air equipment for their specific needs. We offer extensive customization options in both appearance and configuration, alongside OEM services to fulfill unique dealer requirements. Our dedicated sales and service team guarantees prompt and effective after-sales support, ensuring customer satisfaction.
At Sanzhi (Henan) Compressor Co., Ltd, our dedication to delivering superior, stable products is unwavering. We strive to cultivate enduring customer relationships through efficient delivery, exceptional product quality, and competitive pricing, establishing ourselves as your trusted partner in comprehensive compressed air solutions.
Situated in the convenient location of Xinzheng City, Henan Province, China, our factory is easily accessible. We offer a complimentary pick-up service from Xinzheng International Airport, just 30 kilometers-a mere hour's drive away. We warmly invite you to visit and experience our company's hospitality firsthand!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer, specializing in screw air compressors and boasting over a decade of expertise that underscores our reputation for excellence.
Q2. How do you control quality?
A: 1. We conduct rigorous inspections of all raw materials, ensuring the foundation of quality is established from the outset.
2. Our meticulous control over installation procedures guarantees precision and reliability.
3. Each machine is subject to a minimum of 5 hours of continuous testing prior to factory departure, ensuring peak performance and dependability.
Q3. What information must I provide to get the suitable machine?
1. The required air delivery capacity (Unit: CFM or m³/Min) to match your operational needs.
2. Desired working pressure (Unit: PSI, Bar, or Mpa) essential for your specific applications.
3. Voltage and frequency specifications for your country (V/Hz) to ensure compatibility.
4. Any additional accessories required (e.g., air tanks, filters, air dryers) to complete your setup.
By providing these details, we can craft a custom solution perfectly suited to your requirements!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI, providing simplicity in understanding pressure levels.
1m³/min = 35.32cfm, offering clarity in airflow measurements.
1KW = 1.34HP, facilitating straightforward power conversions.
Q5. What is the available voltage air compressor?
A: Sanzhi air compressors are versatile, offered in various voltages such as 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be tailored to meet your unique specifications.
Q6. How long is the delivery time?
A: For standard voltage orders, your request will be processed with remarkable speed, completed within an impressive 15 working days after confirmation. If your order requires non-standard specifications, please do not hesitate to contact our dedicated sales team. They are ready to provide detailed timelines and personalized service to ensure your unique needs are fully met.
Q7. What's the payment term?
A: Our payment terms are designed to be both 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. To facilitate your transactions, we accept payments in both USD and RMB.
Q8. How about your warranty?
A: We are proud to offer a comprehensive warranty package that provides peace of mind: a full one-year warranty covering the entire machine and an extended two-year warranty specifically for the screw air compressor. Please be aware that consumable spare parts are excluded from this warranty offering.
Q9. What about the maintenance?
A: The initial maintenance is crucial and should be performed after 500 hours of operation. Thereafter, maintenance is required every 2000-3000 hours. Adjustments can be made based on the actual working environment to ensure your equipment continues to run at peak performance.
Q10. Can machines be run in high-temperature environment?
A: Absolutely! Our machines are meticulously engineered to provide 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), ensuring reliability under demanding conditions.
Q11. Do you offer OEM service?
A: Yes, indeed! We are delighted to offer comprehensive OEM and ODM services, supported by our highly professional and creative design team. Custom orders are not only accepted but also encouraged to suit your specific requirements.
Q12. How long could your air compressor be used?
A: Our air compressors are engineered for durability, typically boasting a robust lifespan that exceeds 10 years. This ensures long-term reliability and exceptional performance, making them a sound investment for your business.
Q13. Will you provide some spare parts for the machines?
A: Certainly! We will supply all necessary spare parts to maintain the continuous functionality and efficiency of your machines, ensuring they remain in top working condition throughout their use.
Q14. How about your after-sales service?
A: We provide outstanding after-sales support, offering detailed online instructions for installation and commissioning. Moreover, our skilled engineers are available for comprehensive training sessions and on-site installation assistance, ensuring your complete satisfaction with our service.
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