China Factory Durable Sanzhi 55kw Permanent Magnet VFD Screw Air Compressor 0.5-1.6 MPa for Light and Heavy Industries

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ55VF-II
• 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
• 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

Internal Structure Backside


Working Principle

In the realm of cutting-edge air compression technology, achieving the ideal scenario where the power required for single-stage pressure transmission aligns with the aggregate power of multi-stage compression remains the ultimate goal. Despite challenges posed by factors like coupling power loss, bearing friction, and increased viscosity affecting cooling, these hurdles lead to higher actual power usage. As a groundbreaking solution, reducing the compression ratio at each stage emerges as an astute approach. This strategy adeptly ensures the total energy consumed by multi-stage compression is notably less than that of a single-stage system, thereby enhancing overall performance while strategically minimizing energy waste.

Presenting a state-of-the-art two-stage screw air compressor with a sophisticated architecture, showcasing dual rotary screw compressors, each equipped with both an active and a passive screw. In this dynamic design, the active screw, driven by an external transmission mechanism, invigorates the passive screw. The process initiates with the first stage, employing a low-pressure rate screw group, followed by the second stage, which intensifies it with a high-pressure rate screw group. Each screw is surrounded by a sealing air film that optimizes the rotational interaction, facilitating gas compression through an impeccable cycle of suction, pressurization, and exhaust, achieving extraordinary efficiency and exceptional performance.

First Stage Compression: At the crucial starting point, the two-stage screw air compressor utilizes a low-pressure rate screw group to masterfully compress the gas. As the gas is drawn into the screw compression chamber via the suction valve, the rapid rotation of the high-speed screw rotor compresses and propels the gas to the second stage, providing a robust foundation for effective compression.

Second Stage Compression: Progressing into the advanced second stage, the gas is introduced to a more confined screw space, where it endures increased temperature and pressure. Upon reaching peak compression, the exhaust valve activates, smoothly releasing the high-pressure gas and sustaining optimal system efficiency.

Commencing its journey, natural air purified by an air filter enters the initial compression stage, blending with a trace amount of lubricating oil within the compression chamber. This mixture undergoes compression to reach interstage pressure. The compressed gas then traverses the cooling channel, mingling with a dense oil mist to significantly reduce its temperature. The cooled, compressed gas advances to the second-stage rotor, undergoing another compression cycle to attain the final exhaust pressure. Concluding its path, the gas is released through the exhaust valve, completing a flawlessly executed compression process.

 

Detailed Photos

 

 

 

1) Unrivaled Efficiency of the PM Motor: The permanent magnet motor stands out with its vast constant torque and an exceptionally robust weak magnetic range, achieving efficiency levels that eclipse traditional motors by an impressive 20-30%. This motor maintains superb efficiency even during operations exceeding its rated frequency.

2) Effortless Motor Maintenance: Thanks to its groundbreaking architecture, the permanent magnet motor eliminates the need for internal bearings, leading to a substantial reduction in maintenance expenses associated with motor bearing upkeep and replacement.

3) Effortlessly Integrated Frequency Converter: Employing China's leading frequency system, this compressor offers a vast speed adjustment range coupled with precise control, perfectly adapting to real-time gas demands for efficient frequency modulation and highlighting its outstanding energy-saving capabilities.

4) Perfect Transmission Efficiency: With its innovative integrative shaft structure, the permanent magnet motor and compressor are directly coupled, achieving a sleek design with flawless 100% transmission efficiency, doing away with the need for coupling or any additional transmission components.

5) Optimized Variable Frequency and Soft Start: This advanced feature significantly reduces the stress on power grid equipment, providing effective protection to electrical systems against potential damage.

6) Superior Energy Efficiency: Offering a frequency conversion range from 25% to 100% (compared to the typical 50% to 100%), it achieves over 30% energy savings versus fixed-speed compressors. Additionally, it delivers around 5% extra savings over standard variable frequency models. Greater variations in gas consumption lead to even more pronounced savings.

7) Groundbreaking Two-Stage Compression Air End: Ingeniously crafted, the two-stage compression screw machine integrates first and second-stage rotors within a single casing, each powered directly by gears to achieve optimal linear speed and peak compression efficiency.

8) Cutting-Edge Internal Spray Curtain Cooling: This innovative cooling method is renowned for its energy efficiency, providing outstanding cooling performance that notably reduces compressed air temperature, achieving near-isothermal compression, thereby minimizing pressure loss and compression ratio while enhancing efficiency.

9) Reduced Internal Leakage: By utilizing two-stage compression, it reduces the compression ratio per stage, minimizes internal leakage between high and low-pressure zones, thereby boosting volume efficiency.

10) Outstanding Noise Reduction: The two-stage compression approach significantly lowers the compression ratio, dramatically reducing noise levels, particularly during unloading operations.

11) Streamlined Maintenance and Service: The two-stage compressor unit retains the same system structures as single-stage compression, apart from the screw air end, simplifying maintenance tasks and user operation.

 

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

At Sanzhi (Henan) Compressor Co., Ltd., we empower our clients by offering direct access to ex-factory prices, ensuring a distinctive competitive edge in today's marketplace.

2. Direct Deal
Enjoy the benefits of direct dealings with us, as every product in our extensive lineup is available straight from the factory. This approach guarantees you cost-effective, value-rich solutions tailored to your business needs.

3. OEM & ODM Services
Leverage our factory's strong production and management capabilities to unlock customized OEM and ODM services. We are dedicated to fulfilling your specific requirements with the utmost precision and care.

4. Customized Service
Our adaptability shines through in our willingness to accommodate non-standard and export orders, with flexible options in voltage, power, and pressure. We are committed to crafting solutions that fit your exact specifications. Contact us to discuss your bespoke needs.

5. Accept Small Orders
Discover the superior quality of our Durable Sanzhi 55kW Permanent Magnet VFD Screw Air Compressor by initiating with a small trial order, ideal for assessing our outstanding products.

6. Fast Delivery
Our commitment to excellence includes ensuring that high-quality products reach you with prompt and reliable delivery, maintaining efficiency and reliability in every transaction.

7. Complete Authorization
We provide our esteemed distributors with full authorization certificates, equipping you with the confidence to effectively promote and distribute the prestigious SANZHI brand products.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd shines as a beacon of innovation and leadership in the industry, proudly showcasing over a decade of unmatched proficiency in the creation of top-tier screw air compressors and vacuum pumps. Our extensive and diverse product lineup presents a wide array of options, from standard and low-pressure screw air compressors to the next generation of technology with our permanent magnet frequency conversion screw air compressors and sophisticated two-stage compression models. Explore specialized solutions with our screw air compressors designed for laser cutting and our adaptable single and double-tank mobile screw air compressors. Transform your business with our ultra-efficient electric mobile screw air compressors, formidable diesel mobile options, and pioneering screw vacuum pumps, alongside an array of other trailblazing innovations.

Our state-of-the-art production facilities are a testament to modern innovation, equipped with advanced multi-air compressor assembly lines engineered for optimal performance and efficiency. These facilities stand at the pinnacle of lean manufacturing and cutting-edge production techniques. Our devoted team, consisting of over 50 adept professionals, tirelessly refines our management systems, including ERP, to dramatically cut down on lead times, guaranteeing our valued clients receive exceptional products swiftly and reliably.

Our unwavering commitment to outstanding quality management is demonstrated by our factory's prestigious ISO9001 certification, underscoring our strict compliance with rigorous quality standards. Each machine undergoes a comprehensive quality journey, marked by precise material inspections, detailed production evaluations, and exhaustive pre-delivery checks, ensuring that only the finest machines leave our facility.

In the realm of customer service, we excel by providing expert pre-sales consultancy, guiding clients to select the most appropriate air equipment finely tuned to their exact specifications. We offer extensive customization in both design and configuration. Our unrivaled capability to deliver bespoke products tailored to meet dealers' unique needs, including OEM solutions, sets us apart in the marketplace. Moreover, our dedicated sales and service teams provide rapid and proficient after-sales support, ensuring absolute customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, we are passionately committed to crafting products that stand for exceptional quality and steadfast reliability, fostering enduring partnerships with our cherished clients. Our promise of prompt delivery, superior product quality, and competitive pricing makes us the preferred partner of choice for all your compressed air solution requirements.

Nestled in the vibrant city of Xinzheng, Henan Province, China, our factory is strategically positioned just 30 kilometers from Xinzheng International Airport. We warmly invite you to pay us a visit, with complimentary transfers from the airport to our facility, ensuring your experience is both effortless and welcoming. Welcome to Sanzhi (Henan) Compressor Co., Ltd!

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.