Internal Structure - Frontside
Internal Structure - Backside
Working Principle
In the captivating realm of air compression, reaching peak efficiency in single-stage systems requires power usage to parallel the exertion found in multi-stage systems. However, real-world challenges such as power dissipation due to coupling, bearing friction, and cooling liquid viscosity often result in elevated power demands. Multi-stage compression cleverly diminishes the compression ratio at every stage, effectively mitigating such inefficiencies. This strategic approach considerably reduces the total power requirement when compared to single-stage compression, making it a marvel of modern engineering.
We are thrilled to introduce our groundbreaking two-stage screw air compressor, featuring an advanced dual-stage rotary screw system. Each stage is thoughtfully crafted with both an active and passive screw. The active screw energetically propels the passive screw via an external power source. The first stage is equipped with a low-pressure rate screw group, while the second stage employs a high-pressure rate screw group. Each screw is surrounded by a sealing air film that adeptly compresses the gas through three purposeful stages: suction, pressurization, and exhaust.
First Stage Compression: The journey commences as the low-pressure rate screw group deftly compresses the incoming gas. Through a meticulously engineered suction valve, the gas is drawn into the compression chamber, undergoing gradual compression before being seamlessly transitioned to the second stage, energized by the robust rotation of the screw rotor.
Second Stage Compression: In this essential phase, the gas is directed into a more confined screw space, where it experiences compression under increased temperatures and pressures. As the process reaches its peak, the high-pressure gases are gracefully expelled from the system upon the exhaust valve's opening, elegantly concluding the compression cycle.
The refined process initiates with natural air being precisely filtered before entering the first compression stage. It is then expertly combined with a slight amount of lubricating oil. This mixture undergoes compression to interstage pressure and skillfully passes through a cooling channel, where it is exposed to substantial oil mist, significantly reducing its temperature. The cooled gas progresses to the second stage for additional compression, ultimately exiting through the exhaust valve, thus completing the comprehensive and refined compression sequence.
Our water-cooled compressors are renowned for their superior ability to leverage the remarkable cooling power of water. This results in unparalleled lubrication, greatly extending the lifespan of components prone to wear. The circulation of cooling water not only meticulously cleanses internal parts but also efficiently dissipates heat from both the cylinder and the compressed gas. This highly effective cooling method dramatically lowers exhaust temperatures and power consumption, leading to significant savings on operational costs. Regular monitoring and management of any potential scaling issues within the water cooling system are vital to maintain peak performance and ensure long-lasting durability.
1) Superior Efficiency of PM Motor:Step into the future of efficiency with our cutting-edge permanent magnet motor. This marvel of engineering is designed to deliver an extensive range of constant torque and weak magnetic power, boosting efficiency by an astounding 20-30% compared to traditional motors. Even across varying frequencies, it maintains consistent efficiency, assuring you of exceptional motor performance at all times.
2) Maintenance-Free Motor:Our innovative permanent magnet motor is a testament to forward-thinking design, completely free of internal bearings. This eliminates the need for costly and labor-intensive maintenance and bearing replacements, ensuring a smooth, worry-free experience for our users.
3) Integrated Frequency Converter:Equipped with China's premier frequency system, this unit provides an extensive speed regulation range with unmatched precision. It seamlessly adjusts to actual gas demand, delivering outstanding energy-saving advantages for your air compressor, elevating both performance and savings.
4) Zero Transmission Loss:Our unique integrated shaft structure directly connects the permanent magnet motor to the compressor, eliminating couplings and other transmission components. This design achieves flawless transmission efficiency of 100%, ensuring that no energy is lost in the process.
5) Variable Frequency and Soft Start:Embrace the advantages of variable frequency start and soft start technology with our motor, which significantly reduces the impact on power grid equipment while protecting against potential damage to electrical components, offering you peace of mind and reliability.
6) Enhanced Energy Efficiency:Experience remarkable energy efficiency with our system's frequency conversion range from 25% to 100%, dramatically exceeding the typical range of 50% to 100%. This translates to over 30% in energy savings compared to fixed speed compressors and about 5% more savings than standard variable frequency compressors, especially during large fluctuations in system gas consumption.
7) Unique Two-Stage Compression Air End:Our pioneering two-stage compression screw machine features a specially designed air end that incorporates both first-stage and second-stage compression rotors within one casing. These rotors operate through gears to achieve the optimal linear speed for each stage, significantly enhancing compression efficiency and effectiveness.
8) Innovative Internal Spray Curtain Cooling:Transform cooling performance with our revolutionary internal spray curtain cooling technique. This innovation greatly reduces compressed air temperature, closely approximating isothermal compression, while minimizing pressure loss between stages, thus significantly improving compression efficiency.
9) Minimized Internal Leakage:By utilizing a two-stage compression approach, the compression ratio for each stage is reduced, thereby minimizing internal leakage from high-pressure to low-pressure ends and enhancing volumetric efficiency, ensuring optimal performance.
10) Noise Reduction:Our two-stage compression design masterfully reduces the compression ratio, leading to a substantial decrease in operational noise, particularly noticeable during unloading, making for a quieter working environment.
11) Simplified Maintenance and Service:Our two-stage compressor unit retains the familiar systems and structures of single-stage compressors, beyond the screw air end, making maintenance straightforward and user-friendly, ensuring ease of operation and serviceability.
1. Unrivaled Price Competitiveness
Experience unbeatable market dominance with our direct ex-factory pricing! We empower you with exceptional value while adhering to the highest quality standards, ensuring a significant competitive edge.
2. Direct Purchase Benefits
Enjoy the cost-saving advantages of factory-gate dispatch. By eliminating intermediaries, we offer you the most economical solutions, directly passing savings onto you.
3. Extensive Expertise in OEM & ODM
With our extensive production and management proficiency, we stand ready to deliver exceptional OEM/ODM services. Our capabilities ensure your product vision is realized through precise, customized solutions tailored to your exact specifications.
4. Personalized Customization Solutions
We specialize in custom solutions for both non-standard and export orders, adjusting factors like voltage, power, and pressure to meet your specific requirements. Communicate your needs, and we will craft bespoke solutions for you.
5. Acceptance of Small Orders
Explore the excellence of our products with a small trial order. This approach provides you with a firsthand experience of our outstanding quality, paving the way for future substantial engagements.
6. Swift and Reliable Delivery
Take advantage of our superior products coupled with fast and dependable delivery services. We ensure your orders are fulfilled promptly and reliably, every time.
7. Comprehensive Authorization Support
Empower your marketing efforts with complete authorization certificates from us. Market our SANZHI brand products with full confidence and official endorsement, backed by our comprehensive support.
ABOUT US
Sanzhi (Henan) Compressor Co., Ltd is an eminent powerhouse in manufacturing, dedicated to crafting world-class screw air compressors and vacuum pumps. With over a decade of exceptional industry expertise, we shine with our diverse and pioneering product lineup. Dive into our advanced collection featuring normal and low-pressure screw air compressors, alongside energy-saving permanent magnet frequency conversion models. Elevate your performance with our two-stage compression units, precision-engineered for laser cutting, plus flexible single-tank and double-tank mobile screw air compressors. Choose from our steadfast electric and diesel mobile screw air compressors and explore our elite screw vacuum pumps.
Our production prowess is supported by state-of-the-art assembly lines, epitomizing manufacturing excellence. Our dedicated team of over 50 skilled professionals ensures continuous enhancement of systems like ERP, delivering rapid lead times and consistently impeccable quality.
Our management is bolstered by the esteemed ISO9001 quality management system certification. We maintain unmatched quality standards through meticulous control measures. Every machine endures exhaustive inspections, from material checks to production evaluations and thorough pre-delivery assessments, ensuring only top-tier products depart from our facilities.
In customer service, we set the standard, providing expert pre-sales advice to help customers select the ideal air equipment tailored to their specific needs. Our refined customization services span both appearance and configuration, including OEM solutions for dealer uniqueness. Our robust after-sales support guarantees rapid and proficient customer care, powered by our expert sales and service team.
At Sanzhi (Henan) Compressor Co., Ltd, our steadfast commitment to excellence ensures the provision of superior, dependable products and the nurturing of lasting customer partnerships. With a promise of swift delivery, exceptional machinery, and competitive pricing, we are your unwavering ally for all-inclusive compressed air solutions.
Our strategically placed factory in Xinzheng City, Henan Province, China, offers unparalleled connectivity. We provide complimentary pick-up from Xinzheng International Airport, conveniently 30 kilometers or roughly an hour's drive away. We enthusiastically await your visit to our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer, proficient in screw air compressors, boasting over 10 years of industry mastery.
Q2. How do you control quality?
A: 1. We execute rigorous inspections on all raw materials, ensuring supreme quality from the get-go.
2. Our installation procedures are meticulously designed and controlled, guaranteeing precision and dependability.
3. Each machine undergoes a minimum of 5 hours of uninterrupted performance testing before dispatch, ensuring peak operation.
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).
Supply these details, and we will craft a custom solution for you, ensuring the perfect match for your needs!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage air compressor?
A: Sanzhi air compressors are available in a versatile spectrum of voltages, including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Tailored customization is also at your disposal to perfectly align with your specific requirements.
Q6. How long is the delivery time?
A: Experience the rapid efficiency of our order processing for standard voltages, fulfilled within an extraordinary 15 working days post-confirmation. For non-standard specifications, connect with our dedicated sales team for customized timelines and expert guidance, ensuring your precise needs are met with diligence.
Q7. What's the payment term?
A: Our payment terms are designed for clarity and convenience: initiate with a 30% T/T deposit, followed by an additional 40% T/T before shipment, and conclude with the final 30% T/T upon receiving the B/L copy. We accept payments in both USD and RMB for your ease.
Q8. How about your warranty?
A: Enjoy our extensive warranty offerings: a full one-year coverage for the entire machine, complemented by a two-year warranty dedicated to the screw air compressor. Please note that this warranty does not include consumable spare parts.
Q9. What about the maintenance?
A: Initial upkeep is crucial and should be conducted after 500 hours of usage. Thereafter, regular maintenance is required every 2000-3000 hours, with adjustments tailored to the working environment, ensuring your machine operates at peak performance.
Q10. Can machines be run in high-temperature environment?
A: Indeed! Our machines are expertly engineered to sustain efficient performance in high-temperature settings, functioning optimally within a range of -20°C to 45°C (-4°F to 113°F).
Q11. Do you offer OEM service?
A: Certainly! We offer extensive OEM and ODM services, backed by our innovative and skilled design team. Custom orders are not only accommodated but enthusiastically embraced to fulfill your unique specifications.
Q12. How long could your air compressor be used?
A: Our air compressors are robustly constructed to endure, typically offering a remarkable lifespan exceeding 10 years, ensuring enduring reliability and superior performance.
Q13. Will you provide some spare parts for the machines?
A: Certainly! We provide essential spare parts to maintain your machines' seamless operation and efficiency, ensuring they remain in prime working order.
Q14. How about your after-sales service?
A: We deliver outstanding after-sales support, featuring comprehensive online guidance for installation and commissioning. Moreover, our adept engineers are available for detailed training and on-site installation support, ensuring your complete satisfaction.
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