Introducing our Special Screw Air Compressor, meticulously engineered for Powder Conveying. This Closed Type, Low Pressure, Stationary Screw Air Compressor is the ideal solution for diverse industrial applications, including Cement Mixing Plants, Flour Mills, Coal Ash, and Mineral Powder processing. Available in a range of power options: 11KW, 22KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, and 132KW, ensuring you find the perfect fit for your operational 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 similar materials. Operating with a working pressure of 0.15-0.4Mpa, it features direct drive, a large head, and a low rotational speed. Utilizing a unique oil-air separation structure designed with advanced German technology, it ensures low noise and minimal vibration. This compressor does not require any foundational installation and boasts a fast flow rate of compressed air, with an oil content of less than 2PPM to guarantee optimal air volume. The radiator is designed without an after-cooling device, ideal for materials like cement and flour that cannot tolerate moisture to prevent coking and caking, thereby maintaining excellent conveying performance.
Sanzhi produces a specialized low-pressure air compressor for dust conveying, offering versatile applications in cement, mineral powder, coal ash unloading, textile fermentation, and beyond. This compressor is both highly efficient and energy-saving. For instance, a 9.6-meter cement tanker's own unloading device takes at least one and a half hours and consumes a significant amount of fuel, whereas a 37KW air compressor completes the task in just 40 minutes. This not only drastically improves efficiency but also conserves energy and reduces operational costs.
Direct-Connected Rotation Motor
Insulation grade F, protective grade IP55, ensuring a stable flow rate. This motor operates under constant load, showcasing high efficiency and exceptional durability.
German Technology Air End
Utilizing a large rotor and low-speed design, our air end delivers high efficiency with reduced noise and vibration. Experience superior reliability, minimal leakage, and outstanding volume efficiency.
Smart Button Screen
Our interface is designed for simplicity and efficiency. Enjoy a clear display with fast response times, easy operation, and straightforward maintenance.
Cooling System
Designed with a large heat exchange area, this system effectively prevents high temperatures, reducing oil emulsification and coking issues associated with overheating.
Reliable Oil and Air Separator
Featuring a vertical tangential cyclone structure, this separator ensures thorough oil and air separation. Enjoy easy cartridge replacement and lower maintenance costs.
Safe and Zero Leakage Connection
Sanzhi opts for high-rigidity pipes and flexible joint connections over traditional low-cost hydraulic hoses. This robust design prevents bursts and ensures a flexible, leak-proof seal with rubber O-rings.
Aluminum Intake Valve
Our valve operates by loading with electricity and unloading when powered off. It also features noise elimination, stable performance, and a wear-resistant smooth surface.
Oil Viewing Mirror
Crafted from *** material, this viewing mirror offers excellent transparency, high temperature resistance, and minimal color change. Easily monitor oil levels for timely maintenance and replacement.
Excellent Air Filter
This high-performance air filter offers exceptional air purification and employs three-stage filtration to meet standard emissions. It effectively removes steam and dust for a cleaner air system.
Oil Filter
Our oil filter removes impurities from the lubricating oil, ensuring better lubrication for the head and extending the life of your air compressor.
High-Quality Soundproof Cotton
Encased in a compact noise reduction housing, this soundproof cotton minimizes vibration and further enhances noise reduction, ensuring quieter operation.
| 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
Designed to endure the toughest conditions, our Heavy-Duty Screw Air Compressor Pump ensures seamless 24-hour non-stop operation, capable of handling up to an impressive 3 million start/stop cycles without compromising performance.
Intelligent control
Experience unparalleled efficiency with our advanced, safe, and reliable electrical system, complemented by a user-friendly, humanized computer intelligent control for effortless operation.
Easy use
Boasting a simple yet robust structure, this compressor is incredibly easy to install, operate, and maintain, ensuring a hassle-free user experience.
Energy saving
Engineered for efficiency, the enhancement in work productivity significantly reduces energy consumption, translating to impressive cost savings of 30-50%.
High-temperature shutdown protection
For your peace of mind, our compressor features an automatic high-temperature shutdown mechanism, safeguarding the equipment from potential damage and preventing safety hazards by halting operations when temperatures soar.
1. Price Advantage
Providing our customers with direct ex-factory prices, ensuring you stay ahead of the competition.
2. Direct Deal
All our products are supplied directly from the factory, offering you more cost-effective solutions.
3. OEM & ODM Services
Our robust production and management capabilities enable us to offer OEM/ODM services tailored to your needs.
4. Customized Service
We accept non-standard orders including export orders, and can customize voltage, power, pressure, etc., to meet your specific requirements. Contact us for your custom needs.
5. Accept Small Orders
Start with a small trial order to evaluate the superior quality of our products.
6. Fast Delivery
Enjoy our high-quality products delivered promptly and efficiently.
7. Complete Authorization
For distributors, we offer a full authorization certificate, allowing you to market and sell our prestigious SANZHI brand products.
SUCCESSFUL CASES: Delve into our impressive portfolio of successful cases that showcase the optimal performance and reliability of our products. Whether it's in heavy industry, manufacturing, or specialized applications, our experiences highlight the trust and confidence placed in our solutions by leading businesses worldwide.
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!
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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