China Supplier Sanzhi 75HP Two-Stage Screw Air Compressor, 55kw, Air Cooling System, Permanent Magnet Variable-Frequency Drive for Printing Processing

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ55VF-II
• Cooling System: Air Cooling
• Power Source: AC Power
• Cylinder Position: Vertical
• Structure Type: Closed Type
• Installation Type: Stationary Type
• Type: Twin-Screw Compressor
• Brand Name: Sanzhi
• Power: 55kw
• Exhaust Pressure: 0.5-1.6 MPa
• Weight: 2280kg
• Condition: New
• Transport Package: Standard Wooden Package
• Specification: 2150*1300*1730mm
• Trademark: SZ
• Origin: Zhengzhou
• HS Code: 8414804990
• Production Capacity: 500PCS/Month
• Package Size: 220.00cm * 135.00cm * 183.00cm
• Package Gross Weight: 2280.000kg

Product Description

Product Structure

 

Internal Structure Frontside: Experience the meticulously designed frontside of our compressor's internal architecture, where innovation meets craftsmanship. Each component is seamlessly integrated to ensure maximum performance and durability, offering unmatched efficiency.

Internal Structure Backside: Explore the intricately engineered backside of the internal framework, crafted with precision to provide unwavering support to its core functionalities. This design enhances the overall operational stability and reliability, setting new standards in engineering excellence.


Working Principle: Immerse yourself in the revolutionary working principle of the Sanzhi Compressor. Here, cutting-edge technology converges with the advanced science of air compression, delivering efficiency and power that remain unparalleled in the industry.

In the realm of ideal air compression, the theoretical power required for a single-stage pressure transmission equals the cumulative power needed for multi-stage compression. However, in real-world applications, actual working power increases due to factors like coupling transmission losses, bearing friction, and the cooling effects of liquid viscosity. By strategically minimizing the compression ratio at each stage, unnecessary power consumption can be drastically reduced, enabling multi-stage compression to require less total power than a single-stage alternative.

The two-stage screw air compressor stands as a testament to engineering prowess with its dual-stage rotary screw design. Each stage features an active and passive screw, driven by an external power source. The first stage employs a screw group at a low-pressure rate, while the second stage utilizes a high-pressure rate group. Surrounding each screw is a sealing air film, which compresses the gas through a flawless cycle of suction, pressurization, and exhaust, achieving unparalleled efficiency.

First Stage Compression: In this initial phase, our two-stage screw air compressor operates with a low-pressure rate screw group to compress gas. The gas enters the screw compression chamber via the suction valve. As the screw rotor spins rapidly, the gas is efficiently expelled and conveyed to the subsequent compression stage.

Second Stage Compression: During this advanced phase, gas is directed into a confined screw space within the second-stage screw group. Here, it is compressed under elevated temperature and pressure. The exhaust valve then opens, skillfully extracting the high-pressure gas, thereby completing the compression process with exceptional precision.

Initially, natural air enters the compression system through an air filter, merging with a minimal amount of lubricating oil inside the compression chamber. This mixture undergoes initial compression to an interstage pressure level, then traverses through a cooling channel, encountering a rich oil mist that significantly lowers its temperature. The cooled and compressed gas advances to the second-stage rotor, where it experiences further compression, achieving the final exhaust pressure. This results in a fully optimized compression cycle as the air is released through the exhaust valve.

 

Detailed Photos

 

 

 

1) Unmatched Efficiency with PM Motor: Explore the extraordinary benefits of our state-of-the-art permanent magnet motor, offering a remarkable 20-30% enhancement in efficiency over standard motors. Its innovative design guarantees consistent and optimal performance across all frequency ranges, ensuring peak efficiency at every moment.

2) Zero Maintenance Motor: Our groundbreaking permanent magnet motor is ingeniously designed without internal bearings, completely eliminating the need for bearing upkeep or replacements. This feature not only slashes costs but also simplifies maintenance, providing unmatched convenience and reliability.

3) Seamless Frequency Converter Integration: Outfitted with China's top-tier frequency system, this air compressor offers precise and adaptable speed control to tailor energy consumption according to your distinct air needs, thereby enhancing operational efficiency.

4) Absolute Transmission Efficiency: The direct integrated shaft design of the motor-compressor connection ensures a compact and efficient structure with a flawless 100% transmission efficiency, negating the need for couplings or additional transmission apparatus.

5) Advanced Variable Frequency and Soft Start Benefit from the advanced features of variable frequency start and soft start, which substantially diminish stress on electrical systems, thus protecting your power infrastructure from potential harm.

6) Significant Energy Savings: Boasting a frequency conversion spectrum from 25% to 100%, this system achieves over 30% energy savings compared to fixed-speed compressors, surpassing standard variable frequency units by approximately 5% in energy efficiency, particularly in varying gas demand scenarios.

7) Innovative Two-Stage Compression Air End: Our advanced two-stage compression design houses both first and second-stage compression rotors in a single enclosure. Each rotor operates with independent gear-driven precision, optimizing linear speeds and significantly enhancing compression efficiency.

8) Cutting-Edge Internal Spray Curtain Cooling: Incorporating a sophisticated internal spray curtain cooling method, it effectively reduces compressed air temperatures, closely approximates isothermal compression, minimizes inter-stage pressure loss, and boosts overall compression efficiency.

9) Minimized Internal Leakage: Through two-stage compression, the reduced compression ratio at each stage effectively minimizes internal leakage from high to low pressure, thereby enhancing volumetric efficiency.

10) Enhanced Noise Reduction: The two-stage compression process notably lowers the compression ratio, resulting in significant noise reduction, particularly during unloading, creating a quieter and more pleasant workplace atmosphere.

11) Simplified Maintenance and Service: Maintaining the simplicity of single-stage systems, this two-stage compressor, aside from the screw air end, ensures easy maintenance and user-friendliness, delivering convenience and efficiency to end-users.

 

Product Parameters

 

Sanzhi (Henan) Compressor Co,. Ltd.
Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor
Model	Power	Exhaust pressure	Free air delivery* of unit at working pressure	Voltage	Frequency	Air outlet discharge size	Weight	Dimensions
	KW	Mpa	m³/min	V	Hz	Inch	Kg	L*W*H(mm)
SZ15VF-II	15	0.5	4.00	380	50	G1½	660	1450*780*1180
		0.8	3.00
		1.3	2.00
SZ19VF-II	18.5	0.5	5.00	380	50	G1½	680	1450*780*1180
		0.8	4.00
		1.3	3.80
		1.6	2.20
SZ22VF-II	22	0.5	6.60	380	50	G1½	730	1650*880*1280
		0.8	4.20
		1.3	3.00
		1.6	2.50
SZ30VF-II	30	0.5	7.00	380	50	G1½	980	2000*1260*1560
		0.8	6.40
		1.3	4.00
		1.6	3.00
SZ37VF-II	37	0.5	10.00	380	50	G1½	1080	2000*1260*1560
		0.8	7.00
		1.3	5.50
		1.6	4.00
SZ45VF-II	45	0.5	13.00	380	50	G2	1980	2000*1260*1560
		0.8	10.00
		1.3	6.50
		1.6	5.00
SZ55VF-II	55	0.5	17.00	380	50	G2	2180	2150*1300*1730
		0.8	12.00
		1.3	8.60
		1.6	5.00
SZ75VF-II	75	0.5	20.00	380	50	G2	2280	2150*1300*1730
		0.8	16.50
		1.3	11.00
		1.6	9.00
SZ90VF-II	90	0.5	24.00	380	50	DN65	3200	2700*1920*1820
		0.8	20.00
		1.3	14.00
		1.6	11.00
SZ110VF-II	110	0.5	28.00	380	50	DN65	3360	2700*1920*1820
		0.8	24.50
		1.3	18.00
		1.6	14.00
Due to product updates, the above parameters are subject to deviation in kind.

Our Advantages

 

1. Price Advantage: Experience unparalleled pricing superiority that ensures you stay ahead of the competition with our strategically designed cost advantage.

By offering ex-factory prices directly, we enable you to gain a formidable advantage, drastically reducing costs for a competitive edge.

2. Direct Deal: Enhance efficiency and maximize cost-effectiveness by engaging in direct transactions with our factory.
Enjoy the economic and efficient benefits of direct factory shipments, securing the most effective solutions for your needs.

3. OEM & ODM Services: Providing custom-crafted solutions tailored specifically to your requisites.
With cutting-edge production facilities and rigorous management, we excel in offering personalized OEM/ODM services that meet your bespoke specifications.

4. Customised Service: Precision-engineered solutions designed to meet your exacting standards.
We specialize in non-standard, export, and tailored orders for voltage, power, and pressure. Share your requirements and watch them come to life.

5. Accept Small Orders: Flexible options for small-scale orders to verify the superior quality of our offerings.
Start with a trial order to personally witness the outstanding quality of our products.

6. Fast Delivery: Delivering premium-grade products swiftly and dependably to your location.
Benefit from our guaranteed timely delivery of top-quality products, ensuring your complete satisfaction with our efficient service.

7. Complete Authorization: Empower distributors with comprehensive rights to expand our prestigious brand's reach.
We furnish distributors with full authorization certificates, enabling you to market our renowned SANZHI brand products with utmost confidence.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd stands as a leading powerhouse in manufacturing, specializing in the development of groundbreaking screw air compressors and resilient screw vacuum pumps. With a decade of unmatched expertise, we offer an extensive and diverse array of industrial solutions. Our product portfolio shines with standard and low-pressure screw air compressors, innovative permanent magnet frequency conversion screw air compressors, and sophisticated two-stage compression screw air compressors. We tailor to niche applications such as screw air compressors for laser cutting and provide versatile options with single and double-tank mobile screw air compressors available in both electric and diesel variations. Our screw vacuum pumps are meticulously engineered to cater to your industrial specifications with precision and reliability.

In our production sphere, we operate cutting-edge multi-air compressor assembly lines that set benchmarks for efficiency and modernity. Powered by a dedicated team of over 50 skilled employees, we continually enhance management systems such as ERP to significantly slash lead times, ensuring the swift delivery of superior quality products. Our relentless pursuit of excellence equips us to adeptly meet the varied demands of our clients promptly and efficiently.

Within our management framework, our facility proudly holds the esteemed ISO9001 quality management system certification, embodying our commitment to rigorous quality control standards. We institute strict processes that guarantee each machine is subjected to detailed material inspection, exhaustive production inspection, and a thorough pre-delivery inspection. This steadfast dedication ensures that every product we dispatch is a hallmark of our pledge to quality and dependability.

In customer service, we excel in pre-sales by offering expert guidance to help customers select air equipment precisely tailored to their facility needs. Our offerings boast high customization levels, from aesthetic design to functional configuration, and include OEM solutions to craft unique products that meet dealers' precise requirements. Our after-sales support is robust, with a professional sales and service team ready to swiftly address customer inquiries, ensuring an exemplary service experience.

At Sanzhi (Henan) Compressor Co., Ltd, our steadfast mission is to deliver superior and stable products, cultivating enduring relationships with our esteemed customers. We are dedicated to providing not only efficient service and competitively priced, qualified machinery but also a reliable and satisfying compressed air solution tailored to meet your specific needs.

Our state-of-the-art factory is strategically positioned in Xinzheng City, Henan Province, China, granting convenient access from Xinzheng International Airport to our location, a mere 30 kilometers away, approximately an hour's drive. We warmly welcome you to visit our company and witness our unwavering commitment to excellence firsthand.

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.