Introducing the revolutionary AC Power Industrial Screw Air Pump by Sanzhi (Henan) Compressor Co., Ltd. Engineered with precision for Powder Conveying, our Special Screw Air Compressor is the epitome of advanced technology and robust design. This Closed Type Low Pressure Stationary Screw Air Compressor is meticulously crafted to meet the rigorous demands of Cement Mixing Plants, Flour Mills, Coal Ash, and Mineral Powder applications. With a range of power options - 11KW, 22KW, 37KW, 45KW, and 55KW - this compressor guarantees unparalleled performance, efficiency, and reliability, making it an indispensable asset for your industrial needs.
Why Choose the Sanzhi Dust Special Compressor?
Our Special Low Pressure Air Compressor for Dust Conveying is meticulously engineered to handle dust, cement, and other particulates with unmatched efficiency. Operating within an ideal working pressure range of 0.15-0.4Mpa, it boasts a direct drive mechanism and a robust, large head that runs at low rotational speed. Infused with advanced German technology, it features a special oil-air separation structure that ensures minimal noise and vibration. Its installation requires no foundation, and the high-speed compressed air flow, with oil content under 2PPM, guarantees an optimal air volume. The radiator, ingeniously designed without an after-cooling device, prevents moisture in materials such as cement and flour, thereby avoiding coking and caking. This ensures seamless and continuous conveying.
Sanzhi's Special Low-Pressure Air Compressor for Dust Conveying is a versatile and highly efficient solution tailored for diverse applications, including cement, mineral powder, coal ash unloading, and textile fermentation. This energy-saving marvel significantly enhances productivity; for example, unloading a 9.6-meter cement tanker with conventional devices typically takes over 1.5 hours and consumes substantial fuel. In stark contrast, our powerful 37KW air compressor completes the task in just 40 minutes, dramatically boosting efficiency and delivering significant cost savings.
Direct-Connected Rotation Motor
Featuring an insulation grade of F and a protective grade of IP55, this motor provides a stable flow rate, constant load, exceptional efficiency, and long-lasting durability.
German Technology Air End
Our air end incorporates a large rotor and low-speed design, ensuring high efficiency, low noise, minimal vibration, and exceptional reliability. It boasts reduced leakage and superior volume efficiency.
Smart Button Screen
The user-friendly smart button screen offers clear, concise functions, simple operation, fast response times, and vivid display colors, making maintenance a breeze.
Cooling System
Designed with a large heat exchange area, our cooling system effectively prevents high temperatures, reducing oil emulsification and coking to maintain optimal machine performance.
Reliable Oil and Air Separator
Our vertical tangential cyclone separation structure ensures complete oil and air separation, simplifying cartridge replacement, and reducing maintenance costs.
Safe and Zero Leakage Connection
Breaking away from traditional low-cost hydraulic hoses, Sanzhi employs high-rigid pipes and flexible joint connections to prevent bursts and ensure a flexible seal with rubber-type O-rings, guaranteeing zero leakage.
Aluminum Intake Valve
Operated by an electric load, our aluminum intake valve features unloading and air replenishing capabilities while reducing noise. It ensures stable, durable performance with a smooth, wear-resistant surface.
Oil Viewing Mirror
Made from high-quality PMMA material, our oil viewing mirror offers excellent transparency, high-temperature resistance, and minimal color change. It allows for visual monitoring of oil levels and lubrication, ensuring timely replacements to prevent equipment damage.
Excellent Air Filter
Our air filter provides superior air purification, maintaining a clean air system through a three-stage filtration process. It effectively removes steam and small dust particles, meeting standard emissions and ensuring optimal air quality.
| Model |
Power |
Pressure |
Free air delivery* of unit at working pressure |
Voltage |
Frequency |
Noise Level |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
V |
Hz |
dB(A) |
Inch |
Kg |
L*W*H(mm) |
| SZ7.5 |
7.5 |
0.15-0.4 |
1.91 |
380 |
50 |
62 |
G3/4" |
300 |
700*700*1020 |
| SZ11 |
11 |
0.15-0.4 |
2.7 |
380 |
50 |
62 |
G3/4" |
320 |
700*700*1020 |
| SZ15 |
15 |
0.15-0.4 |
3.2 |
380 |
50 |
63 |
G1" |
530 |
1250*780*1220 |
| SZ18 |
18.5 |
0.15-0.4 |
4.5 |
380 |
50 |
65 |
G1" |
560 |
1250*780*1220 |
| SZ22 |
22 |
0.15-0.4 |
5.3 |
380 |
50 |
66 |
G1" |
570 |
1250*780*1220 |
| SZ30 |
30 |
0.15-0.4 |
7.1 |
380 |
50 |
67 |
G1½" |
740 |
1500*940*1350 |
| SZ37 |
37 |
0.15-0.4 |
10.0 |
380 |
50 |
68 |
G1½" |
770 |
1500*940*1350 |
| SZ45 |
45 |
0.15-0.4 |
11.0 |
380 |
50 |
70 |
G1½" |
1060 |
1800*1100*1600 |
| SZ55 |
55 |
0.15-0.4 |
13.0 |
380 |
50 |
73 |
G2"/DN50 |
1250 |
1800*1100*1600 |
| SZ75 |
75 |
0.15-0.4 |
18.0 |
380 |
50 |
73 |
G2"/DN50 |
1480 |
1900*1200*1700 |
| SZ90 |
90 |
0.15-0.4 |
21.0 |
380 |
50 |
78 |
DN80 |
2030 |
2200*1600*1800 |
| SZ110 |
110 |
0.15-0.4 |
27.0 |
380 |
50 |
78 |
DN80 |
2450 |
2250*1600*1800 |
| SZ132 |
132 |
0.15-0.4 |
32.0 |
380 |
50 |
78 |
DN80 |
2550 |
2300*1700*1900 |
| SZ160 |
160 |
0.15-0.4 |
40.0 |
380 |
50 |
78 |
DN80 |
2710 |
2800*1900*2000 |
| SZ185 |
185 |
0.15-0.4 |
45.0 |
380 |
50 |
78 |
DN100 |
3800 |
2800*1760*1920 |
| SZ200 |
200 |
0.15-0.4 |
48.0 |
380 |
50 |
78 |
DN100 |
4100 |
3300*2200*2000 |
| SZ220 |
220 |
0.15-0.4 |
53.0 |
380 |
50 |
78 |
DN100 |
4950 |
3000*2100*2150 |
| SZ250 |
250 |
0.15-0.4 |
60.0 |
380 |
50 |
78 |
DN100 |
5200 |
3000*2100*2150 |
| SZ315 |
315 |
0.15-0.4 |
75.0 |
380 |
50 |
78 |
DN100 |
5650 |
3500*2250*2150 |
| SZ355 |
355 |
0.15-0.4 |
85.0 |
380 |
50 |
78 |
DN100 |
5750 |
3500*2250*2150 |
| Due to product updates, the above parameters are subject to deviation in kind. |
Built to Last
Experience relentless performance with our AC Power Industrial Screw Air Pump, designed for 24-hour continuous operation and capable of up to 3 million start/stop cycles.
Smart Control
Equipped with a highly reliable electrical system and user-friendly computer intelligent control for seamless operation and enhanced safety.
Effortless Operation
Featuring a straightforward design, this pump is remarkably easy to install, operate, and maintain, making it an ideal choice for various industrial applications.
Energy Efficient
Boost your work efficiency while significantly reducing energy consumption. Enjoy savings of up to 30-50% on operational costs with our advanced technology.
High-Temperature Shutdown Protection
Safeguard your equipment with automatic shutdown functionality when operating temperatures soar, preventing damage and eliminating safety risks.
1. Price Advantage
We offer direct ex-factory prices to our customers, giving you a competitive edge in the market.
2. Direct Deal
Our products come straight from the factory, ensuring you receive cost-effective solutions at unbeatable prices.
3. OEM & ODM Services
Our robust production and management capabilities enable us to provide comprehensive OEM/ODM services tailored to your needs.
4. Customised Service
We cater to non-standard, export, and specific voltage/power/pressure orders. Customize your order to meet your exact requirements. Contact us for any specific needs.
5. Small Order Acceptance
We welcome small trial orders, allowing you to test the superior quality of our products with minimal commitment.
6. Fast Delivery
Experience high-quality products delivered promptly and efficiently.
7. Complete Authorization
For our valued distributors, we provide full authorization certificates, empowering you to market and sell our premium SANZHI brand products.
About Us
Sanzhi (Henan) Compressor Co., Ltd is a seasoned manufacturer specializing in the production of screw air compressors and screw vacuum pumps, boasting over a decade of experience. Our extensive product range features: standard/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, screw air compressors for laser cutting, single-tank and double-tank mobile screw air compressors, electric and diesel mobile screw air compressors, and screw vacuum pumps, among others.
During production, we maximize efficiency through our modern, lean, multi-air compressor assembly lines. With the dedication of over 50 employees, we continually refine our management systems, including ERP, to minimize lead times and expedite the delivery of top-quality products.
In management, our factory has proudly earned ISO9001 quality management system certification. We unwaveringly adhere to rigorous quality management protocols and meticulously follow standard quality control processes. Each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection before it exits our facility.
In customer service, we provide an expert pre-sales guide to help customers choose the best air equipment for various facilities. We offer high customization options, including appearance and allocation, and can even create bespoke products to meet dealers' demands, known as OEM. Additionally, our adept sales & service team ensures a quick response to any after-sales needs.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior and stable products to forge long-term partnerships with our customers. With efficient delivery, high-quality machines, and competitive pricing, we are your reliable partner for all compressed air solutions.
Our factory is located in Xinzheng City, Henan Province, China. We can arrange pickup from Xinzheng International Airport, which is just a 30-kilometer, one-hour drive to our facility. We warmly welcome you to visit our company!
Frequently Asked Questions (FAQ)
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, with over 10 years of industry experience.
Q2. How do you ensure quality control?
A: 1. We conduct stringent inspections on raw materials.
2. Our installation procedures are meticulously monitored.
3. Each machine undergoes at least 5 hours of continuous testing before leaving the factory.
Q3. What information is required to get the right machine?
1. Desired air delivery capacity (Unit: CFM or m³/Min)
2. Required working pressure (Unit: PSI, Bar or Mpa)
3. Voltage and frequency specifications of your country (V/Hz)
4. Any additional accessories needed, such as air tanks, filters, and/or air dryers.
Share these details with us, and we'll tailor a solution for you!
Q4. What are the general unit conversions?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What voltage options are available for the air compressors?
A: Sanzhi offers voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can customize according to your specific requirements.
Q6. What is the typical delivery time?
A: For standard voltage, we typically require 15 working days post-order confirmation. For non-standard voltage requirements, please reach out directly to our sales team for precise timelines.
Q7. What's the payment term?
A: Our payment terms are structured as follows: 30% T/T in advance, 40% T/T before 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 offer a comprehensive warranty: one year for the entire machine and an extended two-year warranty for the screw air compressor, excluding consumable spare parts.
Q9. What about the maintenance?
A: The initial maintenance should be performed after 500 hours of operation. Subsequent regular maintenance is recommended every 2000-3000 hours, taking into account the actual working environment.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines are designed to operate efficiently in high-temperature environments, with a working temperature range from -20° to 45°C (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Yes, we proudly offer OEM services. With our professional design team, both OEM and ODM orders are warmly welcomed.
Q12. How long could your air compressor be used?
A: Typically, our air compressors have a robust lifespan of over 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, certainly. We provide spare parts to ensure the longevity and efficiency of your machines.
Q14. How about your after-sales service?
A: We offer comprehensive after-sales support, including online installation and commissioning guidance. Additionally, we can arrange for our engineers to assist with training and installation as needed.
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