Unveil the epitome of precision with our specialized Screw Air Compressor, meticulously designed for impeccable Powder Conveying. Presenting the Closed Type Low Pressure Stationary Screw Air Compressors, quintessential for Cement Mixing Plants, Flour Mills, and the management of Coal Ash & Mineral Powder. Choose from a spectrum of formidable power options: 11KW, 22KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, and the robust 132KW-ensuring you discover the ideal match for your industrial requisites. Experience the zenith of efficiency and reliability with each tailored solution.
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, this motor ensures a stable flow rate with constant load performance. Enjoy high efficiency and exceptional durability.
Cutting-Edge German Technology Air End
Featuring a large rotor and low-speed design, this air end delivers high efficiency, low noise, minimal vibration, and exceptional reliability. Experience reduced leakage and superior volume efficiency.
User-Friendly Smart Button Screen
Designed for ease and clarity, this interface offers rapid response times, vibrant display colors, and effortless maintenance.
Advanced Cooling System
Designed with a large heat exchange area, this cooling system effectively prevents high-temperature issues, reducing the risk of oil emulsification and coking caused by excessive heat.
Highly Reliable Oil and Air Separator
With a vertical tangential cyclone separation structure, this separator ensures complete oil and air separation, making cartridge replacement easy and reducing maintenance costs.
Safe, Zero-Leakage Connections
Moving beyond traditional hydraulic hoses, Sanzhi uses high-rigidity pipes and flexible joints. This design prevents burst risks and employs rubber type 0-rings for flexible, leak-preventive seals.
Durable Aluminum Intake Valve
This valve operates electrically for loading and unloads with power loss. It features noise elimination, air replenishment, stable and durable performance, smooth surface, and wear-resistant properties.
High-Quality Oil Viewing Mirror
Made from premium materials, this oil viewing mirror offers excellent transparency, high-temperature resistance, and minimal color change. Easily monitor oil levels and lubricating oil usage to ensure timely replacements and prevent damage.
Superior Air Filter
This top-tier air filter guarantees a clean air system with three-stage filtration, optimizing air purity and meeting emissions standards. Efficiently removes steam and dust gas.
Optimal Oil Filter
This oil filter effectively removes impurities from lubricating oil, enhancing lubrication and extending the lifespan of the air compressor.
Top-Notch Soundproof Cotton
Compact noise reduction housing 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 robust powerhouse is capable of enduring up to 3 million start/stop cycles, ensuring exceptional performance and unwavering reliability.
Intelligent Control
Our sophisticated, user-centric computer intelligent control system combined with a reliable electrical framework ensures seamless, safe, and dependable operation.
Easy Use
Crafted with simplicity at its core, this model features an intuitive design that makes installation, operation, and maintenance remarkably effortless.
Energy Saving
Enhance your operational efficiency while significantly reducing energy consumption, achieving a remarkable 30-50% cost savings.
High-Temperature Shutdown Protection
Automatically shuts down when temperatures reach critical levels, safeguarding your equipment from potential damage and reducing safety hazards.
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.
About us
Sanzhi (Henan) Compressor Co., Ltd is a manufacturer in the production of screw air compressors and screw vacuum pumps, with more than 10 years of experience. The extensive product range includes 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 mobile screw air compressors, double-tank mobile screw air compressor, electric mobile screw air compressor, diesel mobile screw air compressor, screw vacuum pump, etc.
In production, we are able to achieve the most efficient production by multi-air compressor assembly lines which are lean and modern. With the effort of over 50 employees, we continue to optimize management systems such as ERP to shorten the lead time and deliver qualified products at a fast speed.
In management, our factory passed ISO9001 quality management system certification. We always adhere to the implementation of the stringent quality management system, and strictly implement the standard quality control processes. The outgoing of each machine is an experience of material inspection, production inspection and pre-delivery inspection.
In customer service, on the hand of pre-sales, we offer our customers a professional guide to choosing air equipment for multiple facilities and supply with high customization like its appearance and allocation, and we are even able to create unique products to meet dealer's demand, that is OEM. Meanwhile, for after-sales, we staffed a professional sales & service team for quick response to customers.
We Sanzhi (Henan) Compressor Co., Ltd, devote ourselves to delivering superior and stable products, for building long-term relationships with our customers. Efficient delivery, qualified machine, and worthy price, we are reliable to provide you with a satisfactory compressed air solution.
Our factory is located in Xinzheng City, Henan Province, China. We can pick you up from Xinzheng International Airport to our factory, 30 kilometers in about one hour. Welcome to our company!
Successful Cases
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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