China Manufacturer Fixed Frequency/Inverter Low-Pressure Screw Air Compressor for Industrial Cement Mixing Solutions

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ37
• Lubrication Style: Lubricated
• Cooling System: Air Cooling
• Power Source: AC Power
• Cylinder Position: Vertical
• Structure Type: Closed Type
• Installation Type: Stationary Type
• Type: Twin-Screw Compressor
• Power: 37kw
• Weight: 770kg
• Voltage: 220V / 380V / 415V / 440V 3pH
• Pressure: 0.15-0.4 MPa
• Volumetric Flow: 10 M³/Min
• Air Outlet Discharge Size: G1½"
• Condition: New
• Transport Package: Standard Wooden Packing
• Specification: 1500*940*1350mm
• Trademark: SZ
• Origin: Zhengzhou, China
• HS Code: 8414804990
• Production Capacity: 500PCS/Month
• Package Size: 155.00cm * 95.00cm * 145.00cm
• Package Gross Weight: 770.000kg

Product Description

Introducing our cutting-edge Special Screw Air Compressor, expertly engineered for seamless Powder Conveying. This Closed Type Low Pressure Stationary Screw Air Compressor is meticulously designed to meet the demanding needs of Cement Mixing Plants, Flour Mills, Coal Ash handling, and Mineral Powder processing. With powerful options available in 11KW, 22KW, 37KW, 45KW, and 55KW, it ensures optimal performance and efficiency, making it the ideal choice for your industrial requirements.
 

Product Structure

Why choose Sanzhi dust special compressor?

The cutting-edge special low-pressure air compressor designed for dust conveying serves as an indispensable tool for transporting dust, cement, and other materials with unmatched efficiency. Operating within a pressure range of 0.15-0.4Mpa, this powerhouse features direct drive, a generously sized head, and low rotational speed. Leveraging a unique oil-air separation structure, meticulously crafted with German engineering, this compressor delivers low noise and minimal vibration. Its installation requires no foundational support, making setup a breeze. Notably, the compressor ensures a rapid flow rate of compressed air with an oil content of less than 2PPM, diligently meeting the volume requirements. The radiator is ingeniously designed without an after-cooling device, perfect for applications involving moisture-sensitive materials like cement and flour, preventing coking and caking, and ensuring seamless conveyance.

Sanzhi is proud to offer a specialized low-pressure air compressor dedicated to dust conveying, renowned for its versatile applications across industries such as cement, mineral powder, coal ash unloading, and textile fermentation. This innovative compressor is a beacon of efficiency and energy conservation. For instance, a cement tanker measuring 9.6 meters typically takes over an hour and a half for unloading using its own device, consuming excessive fuel and proving inefficient. However, with a robust 37KW air compressor from Sanzhi, the unloading time is slashed to just 40 minutes, significantly boosting efficiency, reducing fuel consumption, and delivering substantial cost savings.
 

Detailed Photos

 

Direct-Connected Rotation Motor
Featuring an insulation grade of F and protective grade of IP55, this motor ensures stable flow rates. It delivers a constant load with outstanding efficiency and durability for long-lasting operations.

German Technology Air End
With German engineering, the air end incorporates a large rotor and a low-speed design that guarantees high efficiency. It operates with reduced noise and vibration, offering superior reliability and minimal leakage for impressive volume efficiency.
 

Smart Button Screen
Designed for simplicity, this smart button screen boasts clear functions and swift response times. The display is vivid, user-friendly, and requires minimal maintenance, enhancing operating convenience.

Cooling System
An innovative cooling system design with a large heat exchange area effectively prevents overheating. It minimizes the risk of oil emulsification and coking due to elevated temperatures, ensuring optimal performance.
 

Reliable Oil and Air Separator
Utilizing a vertical tangential cyclone separation structure, this component achieves complete oil and air separation. It simplifies cartridge replacement and lowers maintenance costs for efficient operation.

Safe and Zero Leakage Connection
Sanzhi revolutionizes connectivity by forgoing traditional low-cost hydraulic hoses. Instead, it leverages high-rigid pipes and flexible joint connections, providing durable and burst-free solutions with a rubber O-ring that ensures a leak-proof seal.
 

Aluminum Intake Valve
This valve operates electrically to load and unload, featuring noise reduction for the host. It provides stable and durable performance with a smooth, wear-resistant surface, ensuring reliable air replenishment functions.

Oil Viewing Mirror
Crafted from PMMA material, this viewing mirror offers exceptional transparency and high-temperature resistance. It allows for easy monitoring of oil levels and lubrication status, facilitating timely replacements to prevent equipment damage.
 

Excellent Air Filter
Engineered for superior air purification, this filter system guarantees a clean air environment with a triple filtration process. It meets standard emissions by effectively removing significant steam and minor dust particles.

Oil Filter
This oil filter expertly removes impurities from the lubricating oil, ensuring better lubrication of the head and extending the air compressor's lifespan.

High-Quality Soundproof Cotton
Encased in a compact noise reduction housing, the high-quality soundproof cotton further enhances noise reduction, ensuring no vibration amplitude during operation for a quieter, more efficient work environment.

 

Product Parameters

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.

 

Product Features

Rugged and durable
Designed for unparalleled endurance, this compressor supports relentless 24-hour operations and boasts an impressive start/stop capability of up to 3 million cycles, ensuring steadfast performance under demanding conditions.

Intelligent control
Equipped with a robust, dependable electrical system and advanced, user-friendly computer intelligence, this compressor offers safe and reliable operations, seamlessly integrating cutting-edge technology for optimal performance.

Easy use
Featuring a straightforward and streamlined design, the compressor is a breeze to install, operate, and maintain, making it an ideal choice for various industrial applications.

Energy saving
Elevate your operational efficiency and experience significant energy savings. This compressor reduces energy consumption, helping you cut costs by an impressive 30-50%, making it both economical and eco-friendly.

High-temperature shutdown protection
Enhanced with automatic high-temperature shutdown, the compressor safeguards against overheating, preventing potential damage and eliminating safety risks, ensuring longevity and peace of mind for your equipment.
 

Packaging & Shipping

Our Advantages

1. Competitive Pricing Advantage

We proudly offer direct ex-factory pricing, empowering our customers with a competitive edge in the market.

2. Direct Dealings
Every product is supplied directly from our factory, promising you greater value and cost-effectiveness.

3. OEM & ODM Services
Our factory's robust production and management capabilities enable us to provide comprehensive OEM/ODM services tailored to your needs.

4. Tailored Customization Services
We embrace non-standard orders, export demands, and customized specifications in voltage, power, pressure, etc. Contact us for your unique requirements.

5. Small Order Acceptance
Initiate your experience with our superior products by placing a small trial order to evaluate their exceptional quality.

6. Rapid Delivery
Our commitment is to deliver high-quality products swiftly and on time.

7. Comprehensive Authorization
Distributors are provided with complete authorization certificates, enabling you to represent and sell our esteemed SANZHI brand with confidence.

Successful Cases

 

Certifications

About us

Sanzhi (Henan) Compressor Co., Ltd stands as a beacon of innovation and reliability in the manufacturing of screw air compressors and vacuum pumps. With a rich legacy of over a decade, we specialize in a diverse array of products, including normal and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, efficient two-stage compression screw air compressors, specialized versions for laser cutting, versatile single and double-tank mobile screw air compressors, and more. Our portfolio also extends to electric, diesel mobile screw air compressors, and advanced screw vacuum pumps, ensuring we meet every industrial need with precision.

Our production prowess is marked by the implementation of state-of-the-art multi-air compressor assembly lines that are both lean and modern, maximizing efficiency. Driven by a skilled team of over 50 dedicated employees, we continuously refine our management systems, such as ERP, to streamline operations, reduce lead times, and ensure rapid delivery of top-quality products. Our commitment to innovation and efficiency guarantees that our clients receive only the best.

Our commitment to excellence is validated by our ISO9001 quality management system certification, which underscores our dedication to rigorous quality control. We uphold meticulous quality management practices, ensuring each machine undergoes comprehensive material, production, and pre-delivery inspections. This stringent process guarantees that every product leaving our factory is a testament to our unwavering standards of quality.

Our customer service ethos is built on providing exceptional pre-sales and after-sales support. We offer expert guidance to help customers select the perfect air equipment solutions, with options for high customization, including aesthetic and functional adjustments. Our capability to produce OEM products further showcases our flexibility in meeting unique dealer demands. Post-purchase, our professional sales and service team is on standby to deliver prompt and efficient support, reaffirming our dedication to customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, our mission is to deliver exceptional and reliable products, fostering enduring partnerships with our clients. We pride ourselves on efficient delivery, superior quality, and competitive pricing, making us the trusted choice for comprehensive compressed air solutions. Our unwavering commitment to these principles assures customers of a truly gratifying experience with our offerings.

Nestled in the vibrant city of Xinzheng, Henan Province, China, our factory is a hub of innovation and excellence. Conveniently located just 30 kilometers from Xinzheng International Airport, we offer a warm welcome and are pleased to arrange transportation from the airport to our facility in approximately one hour. We look forward to your visit and the opportunity to showcase our commitment to quality and service.
 

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Frequently Asked Questions

Q1. Are you a trading company or manufacturer?
A: We proudly stand as a distinguished manufacturer of screw air compressors, boasting over a decade of professional expertise.

Q2. How do you control quality?
A: 1. Each batch of raw materials undergoes meticulous inspection.
2. Installation procedures are executed with precision and strict oversight.
3. Every machine must endure a rigorous 5-hour nonstop testing phase before it exits our factory.

Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (Unit: CFM or m³/Min)
2. Desired working pressure (Unit: PSI, Bar, or Mpa)
3. Your country's voltage and frequency specifics (V/Hz)
4. Need for additional accessories like air tanks, filters, or air dryers.
Share these details with us, and we'll tailor the perfect solution 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 offers a variety of voltages: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with customization available to suit your needs.

Q6. How long is the delivery time?
A: Standard voltage orders ship in 15 working days post-confirmation. Contact sales for non-standard inquiries.

Q7. What's the payment term?
A: Terms are 30% T/T upfront, 40% T/T pre-shipment, and 30% T/T upon B/L copy. Payments accepted in USD and RMB.

Q8. How about your warranty?
A: Enjoy a one-year warranty for the entire machine and a two-year warranty for the screw compressor, excluding consumable parts.

Q9. What about the maintenance?
A: Initial maintenance is recommended after 500 hours. Subsequent maintenance every 2000-3000 hours, adjusted for specific conditions.

Q10. Can machines be run in high-temperature environment?
A: Absolutely, our machines operate flawlessly in high-temperature regions, sustaining from -20° to 45°(-4ºF-113ºF).

Q11. Do you offer OEM service?
A: With our expert design team, we warmly welcome both OEM & ODM orders.

Q12. How long could your air compressor be used?
A: Generally built to last for over a decade.

Q13. Will you provide some spare parts for the machines?
A: Certainly, spare parts are available.

Q14. How about your after-sales service?
A: We offer online guidance for installation and commissioning, along with engineer-led training and setup assistance.