We proudly present the extraordinary Special Screw Air Compressor, masterfully designed for optimal performance in Powder Conveying applications. This advanced Closed Type Low Pressure Stationary Screw Air Compressor is an indispensable asset for industries such as Cement Mixing Plants, Flour Mills, Coal Ash handling facilities, and Mineral Powder processing operations. With an impressive array of power specifications, including 11KW, 22KW, 37KW, 45KW, 55KW, 75KW, 90KW, 110KW, and the power-packed 132KW, this compressor promises exceptional durability and unmatched efficiency to meet all your industrial demands with ease and reliability.
Why choose Sanzhi dust special compressor?
Discover the Power of the Sanzhi Low Pressure Screw Air Compressor, meticulously crafted for the efficient transportation of dust, cement, and various other particles. Engineered to operate seamlessly within a working pressure range of 0.15-0.4Mpa, this exceptional machine boasts a direct drive system, substantial head, and low rotational speed to ensure peak performance. Its German-engineered oil-air separation structure minimizes noise and vibrations, delivering an ultra-quiet operation. The effortless installation requires no foundational setup, and the compressed air flows at a rapid pace with an oil content of less than 2PPM, guaranteeing an ample air supply. Furthermore, its radiator design excludes an after-cooling device, preventing issues like coking and caking, which are common in materials such as cement and flour and can significantly impede the conveying process.
Experience unparalleled versatility and efficiency with Sanzhi's specially engineered low-pressure air compressor, ideal for a wide array of applications, including cement, mineral powder, coal ash unloading, textile fermentation, and more. This compressor epitomizes energy savings and efficiency, transforming your operations. For example, unloading a 9.6-meter cement tanker with the tanker's own device exceeds an hour and a half, consuming considerable fuel. In stark contrast, the same task is accomplished in just 40 minutes using a 37KW air compressor, significantly boosting efficiency while conserving energy and reducing operational costs.
Direct-Connected Rotation Motor
Insulation Grade F, Protective Grade IP55: This robust motor delivers a stable flow rate for constant load operations, ensuring high efficiency and outstanding durability.
German Technology Air End
High-Efficiency Air End: Featuring a large rotor and low-speed design, this air end ensures exceptional efficiency, low noise, minimal vibration, and superior reliability. Enjoy reduced leakage and high-volume efficiency.
Smart Button Screen
User-Friendly Interface: Benefit from concise functionalities, simple operations, fast response times, vivid display colors, and effortless maintenance.
Cooling System
Advanced Cooling System: With a large heat exchange area, this design effectively prevents high-temperature issues, reducing oil emulsification and coking.
Reliable Oil and Air Separator
Innovative Separation Technology: Utilizing a vertical tangential cyclone structure, this separator ensures complete oil and air separation, easy cartridge replacement, and reduced maintenance costs.
Safe and Zero Leakage Connection
Innovative High-Rigid Pipes: Sanzhi uses high-rigid pipes with flexible joint connections, eliminating traditional low-cost hydraulic hoses to prevent bursts from aging. The rubber type O-ring ensures a flexible, leak-free seal.
Aluminum Intake Valve
Durable Aluminum Intake Valve: Designed for load and unload operations, this valve includes air replenishment and noise elimination functions, offering stable performance and a smooth, wear-resistant surface.
Oil Viewing Mirror
High-Quality PMMA Oil Viewing Mirror: This mirror provides excellent transparency, high temperature resistance, and minimal color change, allowing visual monitoring of oil levels and lubrication for timely replacements.
Excellent Air Filter
Superior Air Filtration: Our advanced air filter ensures a clean air system with three-stage filtration, maximizing purity and meeting standard emissions by efficiently removing steam and dust.
Oil Filter
High-Performance Oil Filter: This filter effectively removes impurities from the lubricating oil, enhancing head lubrication and extending the air compressor's lifespan.
High-Quality Soundproof Cotton
Premium Noise Reduction: Our compact housing, combined with high-quality soundproof cotton, eliminates vibration and significantly enhances noise reduction.
| 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
Our 132kw Electric Motor Industrial Screw Air Compressor is meticulously engineered to deliver relentless performance. It excels in 24-hour non-stop operation and can withstand up to 3 million start/stop cycles, ensuring unparalleled durability.
Intelligent control
Experience the pinnacle of safety and reliability with our sophisticated electrical system. Coupled with an intuitive, human-centered computer intelligent control, it guarantees seamless operation and enhanced user experience.
Easy use
Designed with simplicity at its core, this compressor boasts a straightforward structure, making installation, operation, and maintenance remarkably effortless.
Energy saving
Achieve enhanced work efficiency while dramatically reducing energy consumption. Our design helps you save an impressive 30-50% on energy costs, making it an eco-friendly and economic choice.
High-temperature shutdown protection
Equipped with a high-temperature shutdown mechanism, this compressor automatically activates to protect the equipment from overheating, thereby preventing potential safety hazards and ensuring longevity.
1. Unbeatable Price Advantage
Enjoy factory-direct pricing that ensures you stay at the forefront of market competitiveness.
2. Direct Transactions
Benefit from our factory-to-customer approach, offering you the most cost-effective solutions available.
3. OEM & ODM Services
Leverage our extensive production and management capabilities for bespoke OEM/ODM services designed specifically for your requirements.
4. Customized Solutions
We specialize in accommodating non-standard, export-specific, and customized requests for voltage, power, and pressure. Reach out to us for tailored solutions.
5. Small Orders Welcome
Initiate with a small trial order and witness the superior quality of our offerings firsthand.
6. Swift Delivery
We promise timely delivery, ensuring our high-quality products reach you without delay.
7. Comprehensive Authorization
For distributors, we offer complete authorization certificates, empowering you to confidently market and sell SANZHI brand products.
About us
Sanzhi (Henan) Compressor Co., Ltd. is a distinguished manufacturer specializing in the production of screw air compressors and screw vacuum pumps, with a proud history spanning over a decade. Our extensive product lineup boasts everything from normal pressure and low-pressure screw air compressors to advanced models like permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, laser cutting screw air compressors, and mobile screw air compressors in both single-tank and double-tank configurations. Additionally, we provide electric and diesel mobile screw air compressors and state-of-the-art screw vacuum pumps.
In production, we achieve unparalleled efficiency through our state-of-the-art multi-air compressor assembly lines, designed to be both lean and modern. Our dedicated team of over 50 employees consistently works towards optimizing management systems, including ERP, to minimize lead times and ensure the rapid delivery of top-quality products.
In management, our factory proudly holds the ISO9001 quality management system certification. We are committed to implementing a rigorous quality management system and strictly adhere to standardized quality control processes. Every machine undergoes meticulous material inspection, production inspection, and pre-delivery inspection before it is shipped.
In customer service, our pre-sales team offers expert guidance to help customers select the perfect air equipment for their needs, providing high levels of customization in appearance and configuration. We specialize in creating unique OEM products to meet dealer demands. Our after-sales support is unparalleled, with a professional sales and service team ready to respond swiftly to customer needs.
At Sanzhi (Henan) Compressor Co., Ltd., we are committed to delivering superior, stable products and building long-term relationships with our customers. With efficient delivery, top-notch machines, and competitive pricing, we are your reliable partner for satisfactory compressed air solutions.
Our factory is conveniently located in Xinzheng City, Henan Province, China. We are pleased to offer pick-up services from Xinzheng International Airport to our factory, a short 30-kilometer journey that takes about one hour. We warmly welcome you to visit our company!
Triumphant Client Success Stories
Comprehensive Frequently Asked Questions (FAQ)
Q1. Are you a trading company or a manufacturer?
A: We proudly stand as a distinguished manufacturer of screw air compressors, backed by over a decade of unparalleled expertise.
Q2. How do you ensure quality control?
A: 1. Rigorous inspection and selection of raw materials.
2. Meticulous oversight of installation procedures.
3. Each unit undergoes a stringent minimum of 5 hours of continuous operational testing before shipment.
Q3. What information do I need to provide to get the most suitable machine?
1. Desired air delivery capacity (Units: CFM or m³/min)
2. Required working pressure (Units: PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your region (Units: V/Hz)
4. Additional accessories needed, such as air tanks, filters, and/or air dryers.
Provide these details, and we will tailor the perfect solution for you!
Q4. What are the general unit conversions?
1 Bar = 0.1 Mpa = 14.5 PSI
1 m³/min = 35.32 CFM
1 KW = 1.34 HP
Q5. What voltages are available for the air compressors?
A: Sanzhi provides voltages including 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can customize to meet your specific requirements.
Q6. What is your standard delivery time?
A: For standard voltage units, delivery is 15 working days after order confirmation. For non-standard units, please contact our sales team.
Q7. What are your payment terms?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T upon presentation of the B/L copy. We accept both USD and RMB.
Q8. What is your warranty policy?
A: We offer a one-year warranty for the entire machine and a two-year warranty for the screw air compressor, excluding consumables.
Q9. How should maintenance be conducted?
A: Initial maintenance is required after the first 500 hours. Following that, perform regular maintenance every 2000-3000 hours, taking into account the operational environment.
Q10. Can your machines operate in high-temperature environments?
A: Absolutely! Our machines are engineered to function efficiently in temperatures ranging from -20°C to 45°C (-4ºF to 113ºF).
Q11. Do you provide OEM services?
A: Indeed! With our highly skilled design team, we warmly welcome both OEM & ODM orders.
Q12. What is the lifespan of your air compressors?
A: Typically, our air compressors have a lifespan of more than 10 years.
Q13. Will you supply spare parts for the machines?
A: Yes, we certainly do.
Q14. What after-sales services do you offer?
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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