China Factory Sanzhi 75HP Two-Stage Permanent Magnet VFD/VSD Screw Air Compressor with 0.5-1.6 MPa Pressure

• Customization: Available
• Brand Name: Sanzhi
• Power: 55kw
• Model NO.: SZ55VF-II
• 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: Marvel at the forefront of our compressor, where a rich tapestry of precision-crafted components is meticulously arranged. This strategic assembly elevates performance to unparalleled heights, setting a new benchmark in air compression technology through its sleek design and groundbreaking configurations. Experience the future of efficiency.

Internal Structure Backside: From the rear perspective, witness the seamless integration of robust and enduring components, ingeniously crafted for reliability and streamlined maintenance. This viewpoint highlights a strategic configuration and sophisticated systems that bolster the compressor's superior functionality and longevity, ensuring flawless operation over time.


Working Principle: Dive into the sophisticated engineering of the Sanzhi compressor, where cutting-edge principles converge to produce a seamless, efficient compression process. This intricate synergy of technology and innovation ensures each operational phase is executed with unmatched precision, optimizing performance and elevating efficiency to new heights.

In the domain of air compression technology, finding the perfect balance where single-stage transmission power aligns with multi-stage compression power presents a significant challenge. Real-world elements such as coupling power loss, bearing friction, and increased liquid viscosity cooling further intensify power consumption. To address this, reducing the compression ratio at each stage emerges as a strategic solution. This method ensures that the energy demand for multi-stage compression remains below that of a single-stage system, thereby enhancing performance and reducing energy wastage.

Introducing the state-of-the-art two-stage screw air compressor, featuring cutting-edge dual rotary screw mechanisms with active and passive screws. The active screw, powered by external transmission, energizes the passive screw, creating a dynamic synergy. The process begins with a low-pressure rate screw group, progressing to a high-pressure rate setup in the following stage. Each screw is encased in a sealing air film that augments the rotational process, fostering efficient gas compression through a flawless cycle of suction, pressurization, and exhaust, thereby guaranteeing maximum efficiency and exceptional performance.

First stage compression: In this crucial opening phase, the two-stage screw air compressor utilizes a low-pressure rate screw group to compress the gas. As the gas enters the screw compression chamber via the suction valve, the rapid rotation of the high-speed screw rotor compresses and directs the gas towards the second stage, laying a robust foundation for effective compression.

Second stage compression: During the second stage, the gas is subjected to a more confined screw space, where it experiences a rise in temperature and pressure. As compression reaches its peak, the exhaust valve activates, skillfully discharging high-pressure gas while ensuring the system maintains peak efficiency.

The journey commences with natural air, meticulously filtered and drawn into the first compression stage, where it blends with a minute quantity of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure and traverses through a cooling channel, mingling with a rich oil mist to significantly reduce its temperature. The cooled, compressed gas then proceeds to the second-stage rotor for additional compression, ultimately achieving the final exhaust pressure. Completing its expertly managed journey, the gas exits through the exhaust valve, marking the culmination of a meticulously orchestrated compression process.

 

Detailed Photos

 

 

 

1) Unrivaled Efficiency of the PM Motor: Elevate your operations with our permanent magnet motor, a true marvel that redefines the standards of energy efficiency! Revel in a phenomenal 20-30% boost over traditional motors. With an expansive constant torque and an impressive weak magnetic range, this motor's efficiency gleams both at and beyond rated frequencies. It stands as the pinnacle of energy performance, setting a new era of possibilities in motion.

2) Effortless Motor Maintenance: Step into the future of maintenance with our revolutionary permanent magnet motor design. By eradicating internal bearings, it slashes maintenance expenses and virtually eliminates the typical headaches associated with motor bearing upkeep and replacement. Enjoy smooth, uninterrupted operations with this pioneering advancement.

3) Effortlessly Integrated Frequency Converter: Unleash the power of China's leading frequency system! It offers a vast speed regulation range with precise control, seamlessly aligning with your actual gas requirements for optimal frequency modulation. This ensures the air compressor's extraordinary energy-saving capabilities are fully realized, making it a beacon of energy efficiency.

4) Perfect Transmission Efficiency: Achieve the pinnacle of transmission efficiency with our integrated shaft structure. By directly coupling the permanent magnet motor and compressor, it boasts a streamlined design with 100% transmission efficiency. Bid farewell to traditional couplings and extra components, as this sleek design elevates performance to perfection.

5) Optimized Variable Frequency and Soft Start: Protect your power grid with our advanced variable frequency and soft start technology. It significantly curtails the impact on electrical systems, safeguarding them from potential harm while ensuring seamless and dependable operation.

6) Superior Energy Efficiency: Embark on an unparalleled journey to superior energy efficiency! Our system provides a frequency conversion range from an impressive 25% to 100%, far exceeding the usual 50% to 100% range. It achieves over 30% energy savings compared to fixed-speed compressors, with an additional 5% savings over standard variable frequency models. Greater fluctuations in gas consumption lead to even more remarkable savings.

7) Groundbreaking Two-Stage Compression Air End: Unveil the cutting-edge of two-stage compression with our ingeniously crafted screw machine. By integrating first and second-stage rotors within a single casing, each rotor is gear-driven to sustain optimal linear speed, achieving peak compression efficiency and pushing the frontiers of performance.

8) Cutting-Edge Internal Spray Curtain Cooling: Our revolutionary internal spray curtain cooling technology is unmatched in energy efficiency. It provides exceptional cooling, significantly lowering compressed air temperatures. Achieving near-isothermal compression, it minimizes pressure loss and compression ratio, dramatically enhancing overall efficiency.

9) Reduced Internal Leakage: Maximize volume efficiency with our two-stage compression system, ingeniously designed to reduce the compression ratio per stage. This smart design minimizes internal leakage from high to low-pressure zones, ensuring optimal performance and reliability.

10) Outstanding Noise Reduction: Immerse yourself in a quieter work environment with our two-stage compression process, engineered to lower the compression ratio. Experience significantly reduced noise levels, especially during unloading phases, all while maintaining power and efficiency.

11) Streamlined Maintenance and Service: Simplify maintenance and service with our two-stage compressor unit. Retaining the same system structures as single-stage compression, aside from the screw air end, it makes maintenance tasks and user operations effortless, ensuring your workflow remains seamless and efficient.

 

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

Gain an unbeatable edge in the market with our direct ex-factory pricing strategy. This privilege allows our esteemed clientele to effortlessly outshine competition by leveraging a powerful market advantage.

2. Direct Deal
Access a diverse range of products directly from our factory, providing you with exceptional value and unparalleled cost-efficiency in every solution we offer.

3. OEM & ODM Services
Harness the excellence of our factory's production and management expertise to enjoy tailor-made OEM and ODM services. These are meticulously crafted to fulfill your unique specifications with precision and quality.

4. Customized Service
Our custom services embrace non-standard and export orders with flexibility in voltage, power, and pressure. Each order is tailored exquisitely to your specific needs, ensuring a perfect match. Contact us to explore how we can fulfill your particular requirements.

5. Accept Small Orders
Sample our exceptional quality with a manageable small trial order, perfectly curated to meet your initial evaluation needs and expectations.

6. Fast Delivery
Enjoy peace of mind with our steadfast promise of impeccable product fulfillment, guaranteeing prompt and reliable delivery with every single order.

7. Complete Authorization
We empower our distinguished distributors with comprehensive authorization certificates, enabling you to promote and distribute the prestigious SANZHI brand with utmost confidence and pride.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd stands tall as a beacon of excellence in the compressor industry, distinguished by over a decade of unparalleled expertise in creating premium screw air compressors and vacuum pumps. Our extensive and diverse portfolio offers an abundance of choices, encompassing both standard and low-pressure screw air compressors. Embrace the future with our cutting-edge permanent magnet frequency conversion screw air compressors and our advanced two-stage compression models. For specialized requirements, discover our screw air compressors designed for laser cutting, alongside versatile single and double-tank mobile screw air compressors. Elevate your operations with our high-efficiency electric mobile screw air compressors, robust diesel mobile options, and pioneering screw vacuum pumps, among other innovative solutions.

Our cutting-edge production facilities exemplify modern innovation, boasting sophisticated multi-air compressor assembly lines crafted for peak efficiency. These facilities represent the zenith of lean manufacturing and modern production techniques. Our committed team of over 50 skilled experts continually refines our management systems, including ERP, to substantially reduce lead times, ensuring our esteemed clients receive premium products swiftly and dependably.

Our steadfast dedication to excellence in quality management is epitomized by our factory's esteemed ISO9001 certification, highlighting our strict adherence to rigorous quality management protocols. Each machine embarks on a comprehensive quality journey, characterized by meticulous material inspections, thorough production evaluations, and stringent pre-delivery inspections, guaranteeing that only the finest machines depart from our doors.

In the domain of customer service, we excel by delivering expert pre-sales guidance, assisting clients in selecting the ideal air equipment tailored to their specific requirements. We offer extensive customization options in both aesthetics and configuration. Our unmatched capability to provide bespoke products that meet dealers' unique demands, including OEM solutions, distinguishes us in the market. Furthermore, our dedicated sales and service teams deliver rapid and proficient after-sales support, ensuring complete customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, our fervent commitment to producing products that epitomize exceptional quality and unwavering reliability nurtures enduring relationships with our treasured clients. Our dedication to prompt delivery, superior product quality, and competitive pricing establishes us as the trusted partner of choice for all your compressed air solution needs.

Situated in the vibrant city of Xinzheng, Henan Province, China, our factory is strategically located just 30 kilometers from Xinzheng International Airport. We warmly welcome you to visit us, offering complimentary transfers from the airport to our facility, ensuring your experience is seamless and graciously hospitable. 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.