Harness the immense power of your industrial operations with the formidable Large Power Oil-Lubricated Screw Compressor, a distinguished offering from Sanzhi (Henan) Compressor Co., Ltd., celebrated as China's preeminent supplier. Discover the remarkable advantages of direct-from-factory pricing on this exceptional Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor. Expertly crafted for superior energy conservation and exceptional efficiency, this compressor features top-tier High-Quality Centrifugal Fans that redefine reliability and performance. Engineered to meet the rigorous standards of the most demanding industrial applications, this stationary powerhouse is your gateway to operational excellence. Enhance your industrial prowess with Sanzhi's 185kw High Volume Two-Stage Screw Air Compressor, acclaimed for its extraordinary durability and steadfast consistency. Embark on a journey toward the pinnacle of efficiency, reliability, and cost-effectiveness with Sanzhi's advanced compressor technology, meticulously designed to elevate your industrial processes to unprecedented levels of performance and sustainability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
In an idealized air compression scenario, the energy requirement for a single-stage process would match the cumulative energy of multi-stage operations. However, real-world dynamics introduce complexities like coupling transmission difficulties, bearing friction, and the cooling effects of fluid viscosity, all of which amplify energy requirements. To maximize efficiency, it is crucial to diminish the compression ratio at each stage. This ensures that the total energy required for multi-stage compression remains less than that of a single-stage operation.
The two-stage screw air compressor exemplifies contemporary engineering excellence, boasting a dual rotary screw configuration with active and passive screws. The active screw, energized by an external power source, sets the passive screw in motion. The sequence begins with a low-pressure screw set in the initial stage and progresses to a high-pressure screw set in the subsequent stage. Each screw is encased by an air film seal, facilitating gas compression through a flawless sequence of suction, pressurization, and release cycles during screw rotation.
First Stage Compression: This critical phase initiates the gas compression journey. The gas is drawn into the screw's compression chamber via the suction valve. Here, the rapid rotation of the rotor compresses the gas, directing it seamlessly to the second stage for further processing.
Second Stage Compression: At this advanced stage, gas is ushered into a more confined screw chamber, where it is subjected to compression at notably elevated temperatures and pressures. The exhaust valve then skillfully opens, releasing the high-pressure gas from the system with accuracy and finesse.
The process commences with ambient air being drawn into the initial stage through an air filter. Within the compression chamber, it amalgamates with a trace of lubricating oil. This mixture is compressed to an intermediate pressure, then cooled in a channel where it encounters oil mist, thereby reducing its temperature. This cooled gas advances to the second-stage rotor for further compression, ultimately achieving the desired exhaust pressure. The cycle concludes with the elegant discharge of high-pressure gas through the exhaust valve, completing the process.
| Sanzhi (Henan) Compressor Co,. Ltd. |
| Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor |
| Model |
Power |
Exhaust pressure |
Free air delivery* of unit at working pressure |
Voltage |
Frequency |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
V |
Hz |
Inch |
Kg |
L*W*H(mm) |
| SZ15VF-II |
15 |
0.5 |
4.00 |
380 |
50 |
G1½ |
660 |
1450*780*1180 |
| 0.8 |
3.00 |
| 1.3 |
2.00 |
| SZ19VF-II |
18.5 |
0.5 |
5.00 |
380 |
50 |
G1½ |
680 |
1450*780*1180 |
| 0.8 |
4.00 |
| 1.3 |
3.80 |
| 1.6 |
2.20 |
| SZ22VF-II |
22 |
0.5 |
6.60 |
380 |
50 |
G1½ |
730 |
1650*880*1280 |
| 0.8 |
4.20 |
| 1.3 |
3.00 |
| 1.6 |
2.50 |
| SZ30VF-II |
30 |
0.5 |
7.00 |
380 |
50 |
G1½ |
980 |
2000*1260*1560 |
| 0.8 |
6.40 |
| 1.3 |
4.00 |
| 1.6 |
3.00 |
| SZ37VF-II |
37 |
0.5 |
10.00 |
380 |
50 |
G1½ |
1080 |
2000*1260*1560 |
| 0.8 |
7.00 |
| 1.3 |
5.50 |
| 1.6 |
4.00 |
| SZ45VF-II |
45 |
0.5 |
13.00 |
380 |
50 |
G2 |
1980 |
2000*1260*1560 |
| 0.8 |
10.00 |
| 1.3 |
6.50 |
| 1.6 |
5.00 |
| SZ55VF-II |
55 |
0.5 |
17.00 |
380 |
50 |
G2 |
2180 |
2150*1300*1730 |
| 0.8 |
12.00 |
| 1.3 |
8.60 |
| 1.6 |
5.00 |
| SZ75VF-II |
75 |
0.5 |
20.00 |
380 |
50 |
G2 |
2280 |
2150*1300*1730 |
| 0.8 |
16.50 |
| 1.3 |
11.00 |
| 1.6 |
9.00 |
| SZ90VF-II |
90 |
0.5 |
24.00 |
380 |
50 |
DN65 |
3200 |
2700*1920*1820 |
| 0.8 |
20.00 |
| 1.3 |
14.00 |
| 1.6 |
11.00 |
| SZ110VF-II |
110 |
0.5 |
28.00 |
380 |
50 |
DN65 |
3360 |
2700*1920*1820 |
| 0.8 |
24.50 |
| 1.3 |
18.00 |
| 1.6 |
14.00 |
| Due to product updates, the above parameters are subject to deviation in kind. |
Step into the world of superior performance and unrivaled efficiency with our High Volume Centrifugal Fan Two-Stage Air Compressor! This cutting-edge marvel, featuring a high-speed rotating impeller, expertly accelerates and decelerates air, guaranteeing optimal axial entry and swift cooling. It surpasses traditional air-cooled systems, enabling smooth, continuous operations while significantly extending the compressor's longevity.
1) Remarkable Efficiency of PM Motor:Harness the exceptional power of our advanced permanent magnet motor, boasting an enlarged constant torque and expansive weak magnetic range. This motor achieves a spectacular 20-30% boost in efficiency over ordinary motors, consistently delivering high-performance output even beyond its rated frequency.
2) Maintenance-Free Motor Technology:Brilliantly engineered without internal bearings, our sophisticated permanent magnet motor eradicates the costly upkeep and replacement issues associated with traditional motor bearings.
3) Superior Integrated Frequency Converter:Outfitted with the top frequency system from China, our compressor features a vast and precise speed regulation range, perfectly aligning with real gas demands to offer outstanding energy-saving advantages.
4) Perfect Zero Transmission Loss:The integrated shaft design seamlessly connects the permanent magnet motor directly to the compressor, eliminating the need for couplings and transmission components, thereby ensuring flawless 100% transmission efficiency.
5) Advanced Variable Frequency Start and Soft Start:This state-of-the-art feature significantly eases the strain on power grid equipment, effectively safeguarding electrical systems from potential damage.
6) Optimized Energy Consumption:Our innovative frequency conversion spans from 25% to 100%, far surpassing the traditional 50% to 100% range. This results in more than 30% energy savings compared to fixed-speed air compressors and approximately 5% more than standard variable frequency compressors. Greater system gas consumption fluctuations further enhance these energy-saving effects.
7) Distinctive Two-Stage Compression Air End:Our ingeniously crafted air end amalgamates first-stage and second-stage compression rotors within a single case, each driven by gears. This design ensures optimal linear speed and boosts overall compression efficiency.
8) Groundbreaking Internal Spray Curtain Cooling Technique:Our pioneering internal spray curtain cooling technique provides exceptional cooling, markedly reducing the temperature of compressed air. It achieves near-isothermal compression, minimizes interstage pressure loss, lowers compression ratios, and augments overall compression efficiency.
9) Significantly Reduced Internal Leakage:By decreasing the compression ratio for each stage, our two-stage compression method notably reduces internal leakage between high and low-pressure ends, dramatically enhancing volume efficiency.
10) Effective Noise Reduction:The innovative two-stage compression system substantially decreases the compression ratio, leading to a significant reduction in noise levels, especially during unloading.
11) Simplified Maintenance and Service:With a two-stage compressor unit, its similarities in systems and structures to single-stage compression make maintenance and user servicing remarkably straightforward, aside from the screw air end.
12) Conveniently Removable Door Panels:The unit's casing, crafted from noise-treated metal plates, features panels lined with high-density sound-absorbing material, ensuring compliance with international noise standards. The door plate can be opened and removed, providing a 270-degree all-around access, facilitating maintenance personnel's access to the unit's interior and enhancing the ease of service and upkeep.
1. Unmatched Price Competitiveness - Gain the Edge
Our pricing strategy is unparalleled, offering you extraordinary ex-factory prices that deliver a competitive edge in your market. Embrace significant cost reductions while maintaining premium quality, empowering your market leadership with confidence and success.
2. Seamless Direct Transactions - Efficiency Redefined
Experience direct shipping from our state-of-the-art manufacturing facility, providing you with cost-effective solutions that maintain our high standards of quality. By eliminating intermediaries, we channel savings directly to you, guaranteeing exceptional value and excellence.
3. Exceptional OEM & ODM Services - Precision and Innovation
Harness our cutting-edge production and management prowess to access extraordinary OEM and ODM services, customized to your unique specifications. Partner with us to bring your vision to life with outstanding precision and unrivaled quality.
4. Tailored Customization - Your Vision, Our Expertise
We welcome non-standard, export, and custom orders in voltage, power, pressure, and beyond. Reach out to discuss your specific requirements, and we will engineer a bespoke solution tailored flawlessly to your needs.
5. Welcoming Small Order Requests - Experience the Difference
Begin with a small trial order to personally experience the superior quality of our products. Discover why SANZHI is the trusted choice for clients who demand exceptional performance and steadfast reliability.
6. Swift and Reliable Delivery - Keeping You Ahead
Benefit from our premium product range paired with rapid and dependable delivery services. We ensure your orders arrive on time, safeguarding your operational efficiency and keeping your business running smoothly.
7. Comprehensive Authorization Support - Empower Your Business
We offer complete authorization certificates to our valued distributors, empowering you to promote SANZHI brand products with total confidence. Utilize our brand's robust reputation to amplify your sales and fortify your market presence.
Sanzhi (Henan) Compressor Co., Ltd. is a celebrated powerhouse in the manufacturing realm, renowned for its exceptional screw air compressors and vacuum pumps. With a robust foundation of over a decade, Sanzhi offers a diverse range of products, including standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, sophisticated two-stage compression units, compressors tailored for laser cutting, and versatile mobile screw compressors. Our offerings come in both single and double-tank setups, with power options ranging from electric to diesel, complemented by our innovative screw vacuum pumps.
Our production methodologies stand at the forefront of efficiency and modernization, epitomized by our state-of-the-art multi-air compressor assembly lines. Supported by a skilled team of over 50 committed employees, we consistently refine our ERP-enhanced management systems to significantly reduce lead times, ensuring the swift delivery of superior products.
Upholding excellence, our manufacturing facility is distinguished with the prestigious ISO9001 certification, reflecting our unwavering dedication to impeccable quality management. We rigorously implement comprehensive quality control measures, guaranteeing that each apparatus undergoes meticulous material checks, detailed production evaluations, and thorough pre-dispatch inspections before it departs our facility.
Our customer service ethos is unmatched. Our knowledgeable pre-sales team offers expert guidance in selecting the perfect air equipment, providing extensive customization options in both appearance and configuration. We excel in crafting bespoke OEM products to fulfill the specific needs of our dealers. Our after-sales team, comprised of seasoned experts, is committed to delivering prompt and efficient responses to all customer inquiries and requirements.
At Sanzhi (Henan) Compressor Co., Ltd., we are dedicated to delivering high-performance, reliable products that foster enduring customer partnerships. Our streamlined delivery schedules, top-notch machines, and competitive pricing ensure exceptional compressed air solutions with every engagement.
Strategically located in Xinzheng City, Henan Province, China, our factory is easily accessible. We offer complimentary transportation from Xinzheng International Airport to our facility, a quick 30-kilometer journey taking approximately one hour. We warmly invite you to visit us and witness our commitment firsthand!
FAQ
Q1. Are you a trading company or a manufacturer?
A: We are a specialist manufacturer in screw air compressors, with over a decade of expertise in the industry.
Q2. How do you ensure quality control?
A: 1. We perform stringent inspections on raw materials.
2. We maintain strict oversight of installation processes.
3. Each unit is subjected to at least 5 hours of continuous testing before dispatch.
Q3. What details must I provide to obtain the right machine?
1. Specify the required air delivery capacity (Units: CFM or m³/Min).
2. Outline the necessary working pressure (Units: PSI, Bar, or Mpa).
3. Provide the voltage and frequency specific to your location (V/Hz).
4. Indicate any additional accessories needed, such as an air tank, filters, or air dryers.
Provide these details, and we will tailor the ideal solution for you!
Q4. What are the standard unit conversions?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What are the available voltage options for air compressors?
A: At Sanzhi (Henan) Compressor Co., Ltd., we understand the diverse and evolving needs of our clients. That's why we present a versatile selection of voltage options for our cutting-edge compressors, including 380V/50Hz/3P, 400V/50Hz/3P, 415V/50Hz/3P, 220V/60Hz/3P, and 440V/60Hz/3P. Additionally, we are pleased to offer customization services to match your unique specifications. Our tailored solutions ensure our products fit seamlessly into your operations, providing a personalized approach that meets your business requirements perfectly.
Q6. What is the typical delivery time?
A: Revel in our streamlined and efficient delivery process at Sanzhi. With our standard voltage models, you can expect rapid dispatch within an impressive 15 working days from order confirmation. For those requiring non-standard voltage models, our expert sales team will collaborate closely with you to craft a tailored delivery schedule that aligns precisely with your needs. Experience a bespoke delivery solution that is as unique as your business.
Q7. What's the payment term?
A: Our payment terms are designed with your convenience in mind, offering flexibility and ease. We require a 30% T/T deposit to initiate the process, followed by 40% T/T payment prior to shipment. The remaining 30% T/T is due upon receipt of the B/L copy. To accommodate your preferences, we accept payments in both USD and RMB, making transactions smooth and hassle-free.
Q8. How about your warranty?
A: Enjoy unparalleled peace of mind with our comprehensive warranty program at Sanzhi. We offer a full one-year warranty that covers the entire machine, complemented by an extended two-year warranty specifically for the screw air compressor. This warranty encompasses all non-consumable parts, ensuring you benefit from robust protection and enduring reliability, safeguarding your investment over time.
Q9. What about the maintenance?
A: For optimal performance and reliability, we recommend conducting your initial maintenance inspection after 500 hours of usage. Subsequent maintenance should be carried out every 2000-3000 hours, tailored to the specific working conditions of your operations. This proactive approach ensures your machines remain in peak condition, offering enhanced longevity and efficiency.
Q10. Can machines be run in high-temperature environment?
A: Absolutely. Our advanced machines are engineered to excel in high-temperature environments, operating efficiently within a range of -20° to 45° (-4ºF to 113ºF). Rest assured that even in the most demanding conditions, our compressors deliver reliable performance, ensuring your operations stay on track regardless of the climate.
Q11. Do you offer OEM service?
A: Certainly. We provide a wide array of OEM and ODM services, supported by our dedicated design team. We are committed to delivering innovative and adaptable solutions that resonate with your brand's vision. Our team ensures seamless integration with your specifications, providing a bespoke approach that enhances your brand identity.
Q12. How long could your air compressor be used?
A: Our air compressors are crafted for exceptional durability and strength, boasting a remarkable operational lifespan that exceeds 10 years. This long-lasting reliability ensures you experience peace of mind and sustained performance throughout the compressor's extensive life cycle.
Q13. Will you provide some spare parts for the machines?
A: Absolutely. We are committed to supporting your operational needs by providing essential spare parts for all our machines. This ensures efficient maintenance and prompt repairs, allowing for smooth, uninterrupted operations that keep your business running seamlessly.
Q14. How about your after-sales service?
A: Our comprehensive after-sales service is designed to ensure your operations launch smoothly and successfully. We provide thorough online guidance for installation and commissioning, and for added support, we offer the option to send our expert engineers for on-site training and installation assistance. This commitment to excellence ensures that you receive the highest level of service and support post-purchase.
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