Discover the specialized Screw Air Compressor engineered for flawless Powder Conveying! Introducing the Closed Type Low Pressure Stationary Screw Air Compressors, tailor-made for Cement Mixing Plants, Flour Mills, and Coal Ash & Mineral Powder handling. Available in a range of powerful options: 11KW, 22KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, and the mighty 132KW-ensuring you find the perfect fit for your industrial needs.
Why choose Sanzhi dust special compressor?
The main function of the special low-pressure air compressor for dust conveying is to efficiently transport dust, cement, and various other materials. This advanced system operates with a working pressure between 0.15 and 0.4Mpa. It features a direct drive mechanism, a robust and large head operating at low rotational speeds, and a specialized oil-air separation structure engineered with cutting-edge German technology. This design ensures minimal noise and vibration, eliminating the need for a foundational installation. The air compressor provides a rapid flow rate with an oil content in the compressed air of less than 2PPM, ensuring the air volume meets the necessary specifications. Notably, the radiator doesn't include an after-cooling device, preventing moisture in the air stream, which is crucial for materials like cement and flour to avoid coking and caking, thus maintaining efficient transportation.
Sanzhi's special low-pressure air compressor for dust conveying boasts a broad spectrum of applications, including cement, mineral powder, coal ash unloading, and textile fermentation. It is designed for high efficiency and energy conservation. For instance, unloading a 9.6-meter cement tanker using the tanker's own device typically requires at least one and a half hours and consumes substantial fuel. In contrast, using a 37KW air compressor from Sanzhi reduces the unloading time to just 40 minutes. This significant improvement in efficiency not only saves time and energy but also reduces operational costs.
Premium Direct-Connected Rotation Motor
Built with insulation grade F and protective grade IP55 for a stable flow rate. Experience constant load performance, high efficiency, and long-lasting durability.
Cutting-Edge German Technology Air End
Adopting a large rotor and low-speed design, this air end guarantees high efficiency, low noise, minimal vibration, and outstanding reliability. Expect less leakage and superior volume efficiency.
User-Friendly Smart Button Screen
Designed for simplicity and clarity, this interface offers fast response speeds, clear display colors, and easy maintenance.
Advanced Cooling System
With a large heat exchange area design, this system effectively prevents high-temperature issues, reducing oil emulsification and coking caused by excessive heat.
Highly Reliable Oil and Air Separator
Featuring a vertical tangential cyclone separation structure, this unit ensures complete oil and air separation, easy cartridge replacement, and reduced maintenance costs.
Safe, Zero-Leakage Connections
Sanzhi moves beyond traditional low-cost hydraulic hoses, employing high-rigidity pipes and flexible joints. This design avoids burst risks and uses rubber type 0-rings for flexible, leak-preventive seals.
Durable Aluminum Intake Valve
Operates on electricity for loading and unloads with power loss. Features noise elimination, air replenishment, stable and durable performance, smooth surface, and wear-resistant qualities.
High-Quality Oil Viewing Mirror
Crafted from *** material, offering excellent transparency, high-temperature resistance, and minimal color change. Visually monitor oil levels and lubricating oil usage for timely replacements, preventing damage.
Superior Air Filter
This exceptional air filter ensures a clean air system with three-stage filtration, optimizing air purity and meeting standard emissions. Efficiently removes steam and dust gas.
Optimal Oil Filter
This filter removes impurities from lubricating oil, enhancing lubrication and extending the air compressor's lifespan.
Top-Notch Soundproof Cotton
Compact noise reduction housing that eliminates operational vibration, paired with high-quality soundproof cotton to significantly enhance noise reduction levels.
| 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. |
Rugged and Durable
Engineered for uninterrupted 24-hour operation, this powerhouse can handle up to 3 million start/stop cycles, ensuring peak performance and reliability.
Intelligent Control
Our advanced, human-centric computer intelligent control system and dependable electrical framework guarantee safe and reliable operation.
Easy Use
Designed with simplicity in mind, it boasts a straightforward structure that makes it incredibly easy to install, operate, and maintain.
Energy Saving
Boost your work efficiency while slashing energy consumption, achieving an impressive 30-50% cost reduction.
High-Temperature Shutdown Protection
Automatically shuts down when temperatures soar too high, protecting your equipment from damage and mitigating potential safety risks.
1. Unbeatable Price Advantage
We offer ex-factory prices directly to our customers, ensuring unbeatable competitiveness.
2. Direct Deal Assurance
All our products come straight from the factory, enabling us to provide more cost-effective solutions.
3. Comprehensive OEM & ODM Services
Our factory's robust production and management capabilities allow us to offer tailored OEM/ODM services.
4. Bespoke Customization Service
Accepting non-standard and export orders, we customize voltage, power, pressure, etc. Contact us for any specific needs.
5. Flexibility for Small Orders
You can start with a small trial order to evaluate the superior quality of our products.
6. Rapid Delivery
We ensure the high quality of our products is matched with prompt delivery.
7. Full Authorization for Distributors
We provide comprehensive authorization certificates for distributors to sell SANZHI brand products.
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About us
Sanzhi (Henan) Compressor Co., Ltd is a seasoned manufacturer specializing in the production of top-tier screw air compressors and screw vacuum pumps, with a decade of industry expertise. Our comprehensive product line features normal pressure/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.
In production, we maximize efficiency through our state-of-the-art, lean multi-air compressor assembly lines. With a dedicated team of over 50 employees, we continuously optimize our management systems, such as ERP, to reduce lead times and ensure the rapid delivery of high-quality products.
In management, our factory has achieved ISO9001 quality management system certification. We rigorously adhere to stringent quality management protocols and implement standard quality control processes. Each machine undergoes meticulous material inspection, production inspection, and pre-delivery inspection to guarantee excellence.
In customer service, we excel in both pre-sales and after-sales support. Pre-sales, we provide expert guidance in selecting air equipment tailored to various facilities, offering high customization options, including appearance and allocation. We also excel in OEM services, creating unique products to meet dealer demands. Post-sales, our professional sales and service team ensures a swift response to customer needs.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering superior, stable products and fostering long-term relationships with our customers. With efficient delivery, high-quality machines, and competitive pricing, we are your trusted partner for all your compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We offer complimentary pick-up from Xinzheng International Airport, just 30 kilometers away, a brief one-hour journey to our facility. We warmly welcome you to visit our company!
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, with more than 10 years of experience.
Q2. How do you control quality?
A: 1. The raw materials are strictly inspected.
2. Installation procedures are strictly controlled.
3. Each machine must pass at least 5 hours of continuous testing before leaving the factory.
Q3. What information must I provide to get the suitable machine?
1. How much air delivery capacity (Unit: CFM or m³/Min)
2. How much working pressure (Unit: PSI, Bar or Mpa)
3. What is the voltage and frequency of my country of residence (V/Hz)
4. Whether I need other accessories such as an air tank, filters, and/or air dryers.
Tell us the answer, we will offer a scheme 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 available voltage include 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized according to your requirements.
Q6. How long is the delivery time?
A: For standard voltage,15 working days after the confirmed order. Non-standard, please contact our sales.
Q7. What's the payment term?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. USD, RMB can be accepted.
Q8. How about your warranty?
A: One year for the whole machine and two years for screw air compressor, except for consumable spare parts.
Q9. What about the maintenance?
A: First maintenance needs to be done after 500 hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q10. Can machines be run in high-temperature environment?
A: Yes, machines would run in high-temperature environment countries. Working temperature from -20° to 45°(-4ºF-113ºF).
Q11. Do you offer OEM service?
A: Yes, with a professional design team, both OEM & ODM orders are highly welcome.
Q12. How long could your air compressor be used?
A: Generally, more than 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, of course.
Q14. How about your after-sales service?
A: Provide customers with installation and commissioning online instructions, and arrange for our engineers to help you with training and installation.
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