China Supplier Low-Pressure 2bar 3bar 4bar Screw Air Compressor for Efficient Industrial Applications

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year, 2 Years
• 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 exceptional Special Screw Air Compressor, a true marvel of modern engineering, meticulously crafted to deliver seamless and effortless Powder Conveying in diverse industrial environments. This Closed Type Low Pressure Stationary Screw Air Compressor is expertly designed to meet the stringent demands of Cement Mixing Plants, Flour Mills, Coal Ash handling, and Mineral Powder processing with outstanding precision and accuracy. Offering an impressive range of power options, including 11KW, 22KW, 37KW, 45KW, and 55KW, this compressor ensures unrivaled performance and exceptional efficiency. It stands as the ultimate solution for your industrial needs, providing unmatched reliability and superior functionality for optimal operational excellence.
 

Product Structure

Why choose Sanzhi dust special compressor?

Unveil the epitome of innovation with Sanzhi's special low-pressure air compressor, masterfully crafted to redefine dust conveying capabilities. This essential apparatus is the benchmark for transporting materials such as dust and cement with extraordinary efficiency. Operating within a formidable pressure range of 0.15-0.4Mpa, it features a direct drive mechanism, a generously proportioned head, and an optimized low rotational speed to deliver outstanding performance. Experience the tranquility of operation with its unique oil-air separation system, precision-engineered in Germany, ensuring minimal noise and vibration for an enhanced user experience. Enjoy seamless installation without the need for foundational support. This compressor offers swift compressed air delivery with oil content maintained under 2PPM, satisfying all volumetric requirements effortlessly. Its radiator, crafted without an after-cooling device, excels in handling moisture-sensitive materials such as cement and flour, effectively preventing coking and caking, ensuring smooth conveyance and impeccable performance.

Sanzhi proudly unveils its specialized low-pressure air compressor, a groundbreaking masterpiece in dust conveying, showcasing unmatched versatility across industries including cement, mineral powder, coal ash unloading, and textile fermentation. Renowned for its exceptional efficiency and cutting-edge energy-saving capabilities, this state-of-the-art compressor establishes a new benchmark. As an illustration, a 9.6-meter cement tanker, traditionally taking over ninety minutes to unload with conventional equipment, often results in excessive fuel consumption and inefficiency. In stark contrast, Sanzhi's powerful 37KW air compressor dramatically reduces unloading time to a mere 40 minutes, significantly enhancing efficiency, curbing fuel usage, and offering substantial cost savings. Transform your operations with this extraordinary solution.
 

Detailed Photos

 

Direct-Connected Rotation Motor
Embodying an outstanding insulation grade of F and a protective rating of IP55, this motor guarantees steadfast flow rates. It reliably maintains a constant load with impressive efficiency, showcasing unparalleled durability for prolonged operational usage.

German Technology Air End
Infused with cutting-edge German engineering, the air end is crafted with an enlarged rotor and low-speed mechanism, ensuring unmatched efficiency. It functions with extraordinarily reduced noise and vibration, offering exceptional reliability and minimizing leakage, thereby achieving extraordinary volume efficiency.
 

Smart Button Screen
Designed for hassle-free usability, this smart button screen features simple operations with quick response times. The display is bright, intuitive, and requires minimal upkeep, significantly boosting operational convenience.

Cooling System
Our advanced cooling system design incorporates an expansive heat exchange area, effectively averting overheating. It diminishes the risk of oil emulsification and coking at elevated temperatures, ensuring optimal performance.
 

Reliable Oil and Air Separator
Boasting a vertical tangential cyclone separation structure, this component guarantees comprehensive oil and air separation. It streamlines cartridge replacement, cuts down on maintenance costs, and fosters efficient operations.

Safe and Zero Leakage Connection
Sanzhi pioneers a novel standard in connectivity by discarding traditional low-cost hydraulic hoses. Instead, it utilizes high-rigid pipes alongside flexible joint connections, providing robust, burst-free solutions with a rubber O-ring that ensures a flawless leak-proof seal.
 

Aluminum Intake Valve
This valve operates electrically for seamless loading and unloading, incorporating noise reduction for the host. It offers stable, enduring performance with a sleek, wear-resistant surface, guaranteeing reliable air replenishment capabilities.

Oil Viewing Mirror
Crafted from PMMA material, this viewing mirror showcases remarkable transparency and high-temperature resilience. It enables effortless monitoring of oil levels and lubrication status, allowing for timely replacements and preventing equipment damage.
 

Excellent Air Filter
Designed for supreme air purification, this advanced filter system secures a pristine air environment through a triple filtration process. It adeptly meets emission standards by eliminating both major steam and minor dust particles.

Oil Filter
This oil filter is meticulously engineered to remove impurities from the lubricating oil, assuring excellent lubrication of the head and extending the operational lifespan of the air compressor.

High-Quality Soundproof Cotton
Enclosed within a compact noise reduction casing, the superior soundproof cotton further amplifies noise reduction, ensuring zero vibration amplitude during operation for a quieter, highly efficient working 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
Crafted with exceptional resilience and built for unmatched endurance, this compressor is your reliable partner for continuous 24-hour operations. With an astonishing start/stop capability reaching up to 3 million cycles, it guarantees unwavering performance even in the most challenging environments, delivering reliability when you need it most.

Intelligent control
Harness the power of a robust, dependable electrical system combined with state-of-the-art, user-friendly computer intelligence. This compressor is engineered for safe and reliable operations, seamlessly integrating cutting-edge technology to elevate performance, ensuring efficiency and ease like never before.

Easy use
With its user-centric design, this compressor is effortlessly easy to install, operate, and maintain. Its straightforward and streamlined design caters to a wide range of industrial applications, making it the go-to choice for industries seeking simplicity and efficiency in their operations.

Energy saving
Take your operational efficiency to new heights with significant energy savings. This compressor is engineered to dramatically cut energy consumption, helping you reduce costs by an impressive 30-50%. It's a smart choice for those looking for an economical and environmentally friendly solution, aligning performance with sustainability.

High-temperature shutdown protection
Fortified with an automatic high-temperature shutdown mechanism, this compressor acts as a guardian against overheating, protecting your equipment from potential damage and eliminating safety risks. It assures you of enhanced longevity and peace of mind, making it a wise addition to your industrial operations.

Packaging & Shipping

Our Advantages

1. Competitive Pricing Advantage

We proudly offer direct ex-factory pricing, delivering our customers an invaluable competitive advantage in the marketplace.

2. Direct Dealings
Each product is supplied directly from our factory, ensuring you receive unparalleled value and cost-effectiveness.

3. OEM & ODM Services
Thanks to our factory's remarkable production and management capabilities, we provide extensive OEM/ODM services precisely customized to meet your diverse needs.

4. Tailored Customization Services
We welcome non-standard orders, export demands, and customized specifications, including voltage, power, pressure, and beyond. Partner with us to satisfy your unique requirements.

5. Small Order Acceptance
Begin your journey with our premium products by placing a small trial order, allowing you to experience their extraordinary quality firsthand.

6. Rapid Delivery
Our commitment is to deliver high-quality products swiftly and punctually, ensuring seamless operation of your business.

7. Comprehensive Authorization
We provide our distributors with complete authorization certificates, empowering you to represent and sell the distinguished SANZHI brand with utmost assurance.

Successful Cases

Certifications

About us

Sanzhi (Henan) Compressor Co., Ltd stands as a shining emblem of innovation and reliability in the realm of screw air compressors and vacuum pumps. With over ten years of distinguished expertise, we masterfully craft a wide spectrum of products, encompassing both normal and low-pressure screw air compressors. Our lineup features cutting-edge permanent magnet frequency conversion models, highly efficient two-stage compression screw air compressors, and specialized designs tailored for laser cutting applications. We provide versatile single and double-tank mobile screw air compressors, adding to our diverse portfolio. Furthermore, we offer a comprehensive range of electric and diesel mobile screw air compressors, along with advanced screw vacuum pumps, ensuring precise solutions for every industrial requirement.

Our production capabilities are distinguished by the integration of state-of-the-art multi-air compressor assembly lines that epitomize modernity and efficiency. With the dedication of a skilled team comprising over 50 committed employees, we are constantly enhancing our management systems, including ERP, to optimize operations, minimize lead times, and ensure the swift delivery of superior products. Our unwavering commitment to innovation and operational excellence ensures that our clients receive nothing but the very best in quality and performance.

Our steadfast commitment to excellence is exemplified by our ISO9001 quality management system certification, which highlights our unwavering pursuit of rigorous quality control. We adhere to meticulous quality management practices, with each machine undergoing thorough material, production, and pre-delivery inspections. This rigorous process ensures that every product emerging from our factory is a proud testament to our uncompromising quality standards.

Our customer service philosophy revolves around delivering outstanding pre-sales and after-sales support. We provide expert guidance to assist customers in selecting the ideal air equipment solutions, offering high levels of customization, including both aesthetic and functional modifications. Our ability to produce OEM products further underscores our adaptability in meeting the distinct demands of dealers. After purchase, our professional sales and service team remains on standby to provide swift and effective support, reaffirming our unwavering commitment to customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, our mission is to deliver exceptional and reliable products, nurturing lasting partnerships with our valued clients. We take pride in our efficient delivery, unmatched quality, and competitive pricing, making us the trusted choice for comprehensive compressed air solutions. Our steadfast adherence to these guiding principles assures customers of a truly gratifying and seamless experience with our offerings.

Nestled in the vibrant city of Xinzheng, Henan Province, China, our factory stands as a beacon of innovation and excellence. Conveniently situated just 30 kilometers from Xinzheng International Airport, we extend a warm welcome and are delighted to arrange transportation from the airport to our facility, a journey of approximately one hour. We eagerly anticipate your visit and the opportunity to demonstrate our unwavering commitment to quality and service.

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Comprehensive Answers to Your Most Frequently Asked Questions

Q1. Is your company a trading entity or a manufacturing powerhouse?
A: We are thrilled to highlight our status as a renowned manufacturer of screw air compressors, boasting over a decade of unparalleled professional experience in the field.

Q2. What measures do you employ to ensure impeccable quality control?
A: 1. Our pursuit of excellence starts with the rigorous examination of each batch of raw materials.
2. Installation procedures are meticulously carried out under strict supervision to guarantee peak performance and reliability.
3. Each machine is subjected to a stringent 5-hour continuous testing regime, certifying flawless functionality before leaving our production facility.

Q3. What specific details should I provide to secure the ideal machine for my needs?
1. Please specify the exact air delivery capacity (Units: CFM or m³/Min) required for your operational needs.
2. Clearly indicate the desired working pressure (Units: PSI, Bar, or Mpa) for achieving optimal performance.
3. Communicate your country's specific voltage and frequency requirements (V/Hz) to ensure a perfectly tailored solution.
4. Mention any additional accessory needs, such as air tanks, filters, or air dryers, for a comprehensive system setup.
Provide these details, and we will craft a perfectly customized solution to meet your requirements!

Q4. Can you explain the general unit conversions?
1Bar equates to 0.1Mpa or 14.5PSI, ensuring precise pressure adjustments.
1m³/min is equivalent to 35.32cfm, facilitating efficient air flow measurements.
1KW is precisely translated to 1.34HP, for seamless power conversion.

Q5. What voltage options are available for your air compressors?
A: Sanzhi proudly offers a wide range of voltage options: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, with custom solutions available to meet your unique needs.

Q6. What is the expected delivery timeline?
A: For orders with standard voltage, expect dispatch within 15 working days post-confirmation. For non-standard orders, please contact our sales team for a tailored timeline.

Q7. What are your payment terms and options?
A: Our payment terms are structured as 30% T/T in advance, 40% T/T prior to shipment, and 30% T/T upon receipt of the B/L copy; payments can be made in USD and RMB.

Q8. What does your warranty cover, and for how long?
A: Enjoy a comprehensive one-year warranty on the entire machine and a two-year warranty specifically for the screw compressor, with consumable parts excluded.

Q9. How should the maintenance be scheduled?
A: Initial maintenance is advised after 500 hours, with subsequent regular maintenance every 2000-3000 hours, adaptable to specific operational conditions.

Q10. Are your machines suitable for high-temperature environments?
A: Indeed, our machines are ingeniously designed to perform seamlessly in high-temperature conditions, tolerating a range from -20° to 45°(-4ºF-113ºF).

Q11. Do you provide OEM services for customized orders?
A: Absolutely, with our expert design team, we enthusiastically welcome both OEM & ODM orders, bringing your innovative ideas to reality.

Q12. What is the typical lifespan of your air compressors?
A: Engineered for longevity, our air compressors are generally designed to operate efficiently for over a decade, offering enduring reliability.

Q13. Will you provide some spare parts for the machines?
A: Absolutely! We proudly offer a comprehensive range of spare parts, meticulously designed to ensure your machines operate with exceptional efficiency and reliability, keeping your operations smooth and uninterrupted.

Q14. How about your after-sales service?
A: Our after-sales service is nothing short of exemplary. We deliver an all-encompassing online guidance experience for installation and commissioning, further enhanced by personalized, hands-on training and setup support from our expert engineers. This ensures your operations run flawlessly from day one.