Experience the pinnacle of efficiency and reliability with our specialized Screw Air Compressor, meticulously engineered for flawless Powder Conveying operations! Presenting the Closed Type Low Pressure Stationary Screw Air Compressors, expertly designed for optimal performance in Cement Mixing Plants, Flour Mills, and the handling of Coal Ash & Mineral Powder. Our range boasts a variety of robust options: 11KW, 22KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, and the formidable 132KW, ensuring that you will find the ideal match for your specific industrial requirements. Elevate your operations with the unparalleled power and precision of our compressors.
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 superior insulation grade F and protective grade IP55, this motor ensures a stable flow rate, offering constant load performance, exceptional efficiency, and remarkable durability for long-term use.
Cutting-Edge German Technology Air End
Engineered with a large rotor and low-speed design, this advanced air end delivers exceptional efficiency, reduced noise, minimal vibration, and unparalleled reliability. Expect minimal leakage and optimal volume efficiency.
User-Friendly Smart Button Screen
Crafted for simplicity and clarity, this intuitive interface provides rapid response times, vivid display colors, and effortless maintenance for an enhanced user experience.
Advanced Cooling System
Featuring a spacious heat exchange area design, this sophisticated cooling system effectively prevents high-temperature issues, reducing oil emulsification and coking from excessive heat, ensuring optimal performance.
Highly Reliable Oil and Air Separator
Incorporating a vertical tangential cyclone separation structure, this unit guarantees complete oil and air separation, easy cartridge replacement, and minimized maintenance costs for maximum efficiency.
Safe, Zero-Leakage Connections
Sanzhi surpasses traditional low-cost hydraulic hoses by employing high-rigidity pipes and flexible joints. This innovative design mitigates burst risks and utilizes rubber type 0-rings for flexible, leak-proof seals.
Durable Aluminum Intake Valve
Powered by electricity for precise loading and unloads during power loss. It features noise reduction, air replenishment, stable and durable performance, a smooth surface, and wear-resistant properties.
High-Quality Oil Viewing Mirror
Constructed from premium material, this mirror offers excellent transparency, high-temperature resistance, and minimal discoloration. It allows easy visual monitoring of oil levels and lubricating oil usage for timely replacements, preventing potential damage.
Superior Air Filter
This outstanding air filter provides a clean air system with three-stage filtration, optimizing air purity and meeting standard emissions. It efficiently removes steam and dust gas for enhanced performance.
Optimal Oil Filter
Designed to remove impurities from lubricating oil, this filter significantly enhances lubrication, extending the air compressor's lifespan and ensuring smooth operation.
Top-Notch Soundproof Cotton
Featuring a compact noise reduction housing that eliminates operational vibration, this high-quality soundproof cotton significantly enhances noise reduction levels, ensuring a quieter working environment.
| 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 is built to withstand up to 3 million start/stop cycles, providing unmatched performance and reliability.
Intelligent Control
Our cutting-edge, human-centric computer intelligent control system, combined with a robust electrical framework, ensures safe, consistent, and reliable operation at all times.
Easy Use
Crafted with user-friendliness in mind, this product features a straightforward structure, making installation, operation, and maintenance remarkably simple and hassle-free.
Energy Saving
Enhance your operational efficiency while significantly reducing energy consumption, achieving a remarkable 30-50% cost savings.
High-Temperature Shutdown Protection
Automatically activates shutdown when temperatures become excessively high, safeguarding your equipment from damage and reducing potential safety hazards.
1. Unbeatable Price Advantage
We offer ex-factory prices directly to our customers, ensuring an unparalleled level of competitiveness in the market.
2. Direct Deal Assurance
All our products are delivered straight from the factory, allowing us to provide more cost-effective and efficient solutions.
3. Comprehensive OEM & ODM Services
Our factory's extensive production and management capabilities empower us to offer bespoke OEM/ODM services tailored to your unique requirements.
4. Bespoke Customization Service
We accept non-standard and export orders, customizing voltage, power, pressure, and other specifications. Contact us for specialized needs.
5. Flexibility for Small Orders
Start with a small trial order to experience the exceptional quality and performance of our products.
6. Rapid Delivery
We ensure that the superior quality of our products is complemented by timely and prompt delivery.
7. Full Authorization for Distributors
We provide comprehensive authorization certificates for distributors to confidently 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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