Introducing our Special Screw Air Compressor, meticulously designed for powder conveying applications. This closed-type, low-pressure stationary screw air compressor is the perfect solution for sectors such as cement mixing plants, flour mills, coal ash handling, and mineral powder processing. Available in an array of power options including 11KW, 22KW, 37KW, 45KW, and 55KW, it guarantees exceptional performance and reliability tailored to your industrial needs. Discover unparalleled efficiency and durability with our compressor, ensuring your operations run smoothly and effortlessly.
Why choose Sanzhi dust special compressor?
The primary function of the specialized low-pressure air compressor designed for dust conveying is to efficiently transport dust, cement, and similar materials. Operating within a pressure range of 0.15-0.4Mpa, this advanced machine utilizes a direct drive system, featuring a large head and low rotational speed. Engineered with a unique oil-air separation structure inspired by German technology, it ensures low noise and minimal vibration, eliminating the need for any foundational installation. The compressor's rapid airflow ensures that the compressed air has an oil content of less than 2PPM, guaranteeing the required air volume. The radiator operates without an after-cooling device, as moisture must be avoided during the conveying process to prevent caking and coking, which can severely impact performance. This meticulous design supports optimum conveying efficacy, whether for cement or even flour.
Sanzhi offers a specialized low-pressure air compressor tailored for dust conveying with diverse applications, including cement, mineral powder, coal ash unloading, and textile fermentation. This high-efficiency, energy-saving solution significantly boosts productivity and cost savings. For instance, unloading a 9.6-meter cement tanker using its built-in device typically takes at least 1.5 hours and is fuel-intensive and inefficient. In contrast, employing a 37KW air compressor from Sanzhi reduces this time to just 40 minutes, drastically enhancing efficiency, conserving energy, and reducing operational costs.
Direct-Connected Rotation Motor
Insulation grade F, protective grade IP55, stable flow rate. Constant load, high efficiency, and renowned durability.
German Technology Air End
The air end adopts a large rotor with a low-speed design, delivering exceptional efficiency, whisper-quiet operation, minimal vibration, and unparalleled reliability with reduced leakage and outstanding volume efficiency.
Smart Button Screen
Featuring concise and clear functions, this intuitive operation panel is remarkably user-friendly, offering rapid response times with a crystal-clear display, ensuring straightforward maintenance.
Cooling System
The expansive heat exchange area design effectively prevents high-temperature malfunctions and reduces oil emulsification and coking caused by elevated temperatures.
Reliable Oil and Air Separator
Boasting a vertical tangential cyclone separation structure, this system ensures thorough separation of oil and air, easy cartridge replacement, and minimized maintenance expenses.
Safe and Zero Leakage Connection
Sanzhi has revolutionized the industry by moving away from traditional low-cost hydraulic hose designs. By implementing high-rigidity pipes and flexible joint connections, the system avoids bursts typically caused by aging while the rubber-type O-ring offers a versatile seal to prevent leakage.
Aluminum Intake Valve
Designed to load with electricity and unload with its loss, this valve features functions of air replenishing and noise elimination for the host. Providing stable and enduring performance, it boasts a smooth, wear-resistant surface.
Oil Viewing Mirror
Constructed from *** material, this mirror offers excellent transparency, high-temperature resistance, and minimal color change, allowing you to visually monitor oil level changes and the usage of lubricating oil for timely replacements and additions, preventing equipment damage.
Excellent Air Filter
Featuring exceptional air purification capabilities, this air filter ensures a pristine air system with three-stage filtration, maximizing air purification and meeting standard emissions requirements, effectively removing steam and dust gas.
Oil Filter
Efficiently filtering impurities in the lubricating oil, this filter boosts lubrication for the head, prolonging the lifespan of the air compressor.
High-Quality Soundproof Cotton
This sleek noise reduction housing achieves zero vibration amplitude during operation and works seamlessly with high-quality soundproof cotton to significantly elevate 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. |
Built to Last: Unmatched Ruggedness and Durability
Engineered for Continuous Performance: Our High Capacity 75kw Versatile Voltage Screw Air Compressor is meticulously designed for 24-hour non-stop operation, enduring up to 3 million start/stop cycles, thus guaranteeing unwavering reliability.
Intelligent Control System
Safety and Reliability with Humanized Intelligence: Integrating a state-of-the-art electrical system and user-friendly computer intelligent control, our product ensures seamless, secure, and worry-free operations.
User-Friendly Design
Effortless Operation: Featuring a simplified structure, it ensures easy installation, straightforward operation, and minimal maintenance, making it incredibly user-friendly.
Energy Efficiency
Cutting-Edge Energy Savings: By optimizing work efficiency, our compressor reduces energy consumption, delivering a remarkable cost savings of 30-50%, setting new standards in energy efficiency.
Advanced High-Temperature Shutdown Protection
Automatic Safety Measures: Equipped with an advanced system that automatically shuts down when operating temperatures become too high, it safeguards the equipment and eliminates potential safety hazards, ensuring maximum protection.
1. Unmatched Pricing Advantage
We offer factory-direct pricing, granting our customers a unique competitive edge in the market. Benefit from our cost-effective solutions and maximize your profitability.
2. Direct Transactions
All our products come directly from our factory, ensuring we provide the most cost-effective solutions. Enjoy the assurance of quality and competitive pricing.
3. Comprehensive OEM & ODM Services
Leveraging our robust production and management capabilities, we offer tailored OEM/ODM services to meet your specific needs. Customize your orders precisely to your requirements with our professional expertise.
4. Tailored Customization Services
We welcome non-standard orders including export orders, customized voltage, power, pressure, etc. No matter your specific requirements, we are here to cater to your needs.
5. Small Order Friendly
Start with a small trial order to evaluate the superior quality of our products. Experience firsthand the exceptional standards we maintain.
6. Prompt Delivery
Experience the seamless combination of high-quality products and timely delivery. Our efficient logistics ensure that you receive your products exactly when you need them.
7. Full Authorization Support
For distributors, we provide comprehensive authorization certificates, empowering you to sell our SANZHI brand products with confidence and credibility.
SUCCESSFUL CASES
About us
Sanzhi (Henan) Compressor Co., Ltd is a premier manufacturer specializing in the production of high-performance screw air compressors and vacuum pumps, boasting over a decade of expertise. Our extensive product lineup includes normal pressure and low-pressure screw air compressors, energy-efficient permanent magnet frequency conversion screw air compressors, advanced two-stage compression screw air compressors, specialized screw air compressors for laser cutting, versatile single-tank mobile screw air compressors, robust double-tank mobile screw air compressors, efficient electric mobile screw air compressors, reliable diesel mobile screw air compressors, and cutting-edge screw vacuum pumps.
Our production capabilities are maximized through state-of-the-art multi-air compressor assembly lines designed for lean and modern manufacturing. With the dedication of over 50 skilled employees, we continuously enhance management systems such as ERP, ensuring reduced lead times and the rapid delivery of top-quality products.
In terms of management, our factory has achieved ISO9001 quality management system certification. We are committed to maintaining a rigorous quality management framework, strictly adhering to standardized quality control processes. Each machine undergoes thorough material inspection, production inspection, and pre-delivery inspection to ensure superior quality.
Our customer service is exceptional, beginning with pre-sales where we provide expert guidance in selecting the ideal air equipment for various facilities, offering high levels of customization in appearance and configuration. We also specialize in creating unique OEM products tailored to meet dealer demands. For after-sales service, our professional sales and service team is always ready to respond promptly to customer needs.
At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to delivering superior, stable products and forging 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.
Located in Xinzheng City, Henan Province, China, our factory is conveniently accessible. We offer complimentary pickup from Xinzheng International Airport to our factory, a short 30-kilometer drive taking approximately one hour. We warmly welcome you to visit our company!
Frequently Asked Questions
Q1. Are you a trading company or manufacturer?
A: We are a distinguished manufacturer specializing in screw air compressors, boasting over a decade of industry expertise.
Q2. How do you control quality?
A: 1. Our raw materials undergo rigorous inspection to ensure premium quality.
2. Our installation procedures are meticulously managed and controlled.
3. Each machine is subjected to a minimum of 5 continuous hours of testing before it leaves our factory.
Q3. What information must I provide to get the suitable machine?
1. Specify the required air delivery capacity (Unit: CFM or m³/Min)
2. Indicate the necessary working pressure (Unit: PSI, Bar, or Mpa)
3. Provide the voltage and frequency of your country (V/Hz)
4. Let us know if additional accessories such as an air tank, filters, or air dryers are needed.
Share these details, and we will tailor a scheme just for you!
Q4. What is the general unit conversion?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 cfm
1 KW = 1.34 HP
Q5. What is the available voltage air compressor?
A: Sanzhi offers voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Customization is available to meet your specific requirements.
Q6. How long is the delivery time?
A: For standard voltage units, the delivery time is 15 working days post-order confirmation. For non-standard options, please consult our sales team.
Q7. What's the payment term?
A: Payment terms are 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. Payments in USD and RMB are accepted.
Q8. How about your warranty?
A: We offer a one-year warranty for the entire machine and a two-year warranty for the screw air compressor, excluding consumable parts.
Q9. What about the maintenance?
A: The initial maintenance should be performed after 500 hours of operation. Subsequent maintenance should be done every 2000-3000 hours, considering the specific operating environment.
Q10. Can machines be run in high-temperature environments?
A: Absolutely, our machines can operate in high-temperature environments, with a working range from -20° to 45°C (-4ºF to 113ºF).
Q11. Do you offer OEM service?
A: Yes, we welcome both OEM and ODM orders, supported by our professional design team.
Q12. How long could your air compressor be used?
A: Our air compressors are designed for a lifespan exceeding 10 years.
Q13. Will you provide some spare parts for the machines?
A: Yes, we will definitely provide spare parts.
Q14. How about your after-sales service?
A: We offer online instructions for installation and commissioning, and our engineers are available to assist with training and installation.
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