China Factory Reliable Sanzhi 75HP 55kw Permanent Magnet Two-Stage VFD/VSD Screw Air Compressor for Industry Use

• 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: Discover the sophisticated front view of our Reliable Sanzhi 75HP Two-Stage VFD/VSD Screw Air Compressor, 55kW. This perspective reveals a harmonious array of expertly crafted components, precisely positioned to offer unmatched performance. The sleek, modern design and groundbreaking configurations are at the forefront of air compression innovation, setting a new benchmark for efficiency and technological excellence.

Internal Structure Backside: From the rear, the Reliable Sanzhi compressor presents a seamless integration of durable components, thoughtfully engineered for longevity and easy maintenance. This view highlights the strategic arrangement and cohesive systems that underpin the compressor's remarkable functionality and durability, ensuring flawless operation over extended periods.


Working Principle: Delve into the advanced engineering of the Sanzhi compressor, where cutting-edge principles come together to facilitate a seamless and efficient compression process. This intricate synergy of technology and innovation ensures that every stage of operation is carried out with meticulous precision, enhancing performance and maximizing efficiency with each cycle.

In the field of air compression technology, striking the perfect balance where single-stage transmission power aligns with multi-stage compression power presents a formidable challenge. Real-world factors such as coupling power loss, bearing friction, and increased liquid viscosity cooling contribute to power inefficiencies. Reducing the compression ratio at each stage emerges as a strategic solution to this problem. This method ensures that the energy demand for multi-stage compression remains below that of a single-stage system, thereby boosting performance while minimizing energy waste.

Introducing a next-generation two-stage screw air compressor, equipped with cutting-edge dual rotary screw compressors featuring both active and passive screws. The active screw, driven by external transmission, powers the passive screw, creating a dynamic synergy. The process initiates with a low-pressure rate screw group, advancing to a high-pressure rate setup in subsequent stages. Encased in a sealing air film, each screw enhances the rotational process, promoting efficient gas compression through a flawless cycle of suction, pressurization, and exhaust, ensuring peak efficiency and superior performance.

First stage compression: In this crucial initial phase, our two-stage screw air compressor utilizes a low-pressure rate screw group to begin gas compression. As the gas enters the screw compression chamber through the suction valve, the rapid rotation of the high-speed screw rotor compresses and drives the gas toward the second stage, laying a strong foundation for an efficient compression process.

Second stage compression: During the second stage, the gas meets a tighter screw space where both temperature and pressure increase significantly. As compression reaches its apex, the exhaust valve activates, expertly releasing the high-pressure gas while maintaining the system's optimal efficiency and performance.

The journey commences as natural air, meticulously filtered, is drawn into the first compression stage, where it mingles with a precise amount of lubricating oil within the compression chamber. This mixture is compressed to interstage pressure, then channeled through a cooling pathway, where it interacts with a dense oil mist, substantially reducing its temperature. The cooled, compressed gas then proceeds to the second-stage rotor for further compression, achieving the final exhaust pressure. Culminating its expertly managed course, the gas exits via the exhaust valve, concluding a highly sophisticated compression process.

 

Detailed Photos

 

 

 

1) Unrivaled Efficiency of the PM Motor: Elevate your operation to new heights with our superb permanent magnet motor, effectively setting a new standard in energy efficiency! Revel in an astounding 20-30% enhancement over traditional motors. With a broad constant torque and a robust weak magnetic range, its efficiency shines brightly both at and beyond rated frequencies. This motor is a hallmark of exceptional energy performance, revolutionizing possibilities and standing as the epitome of excellence.

2) Effortless Motor Maintenance: Embrace the future of motor upkeep with our novel permanent magnet motor design. By doing away with internal bearings, maintenance costs are significantly reduced, nearly abolishing the common challenges of motor bearing maintenance and replacement. Enjoy seamless, uninterrupted operations thanks to this groundbreaking advancement.

3) Effortlessly Integrated Frequency Converter: Tap into the power of China's leading frequency system! It offers an expansive speed regulation range with precise control, matching perfectly with your actual gas needs for optimal frequency modulation. This ensures the air compressor's outstanding energy-saving capabilities are fully realized, establishing it as a beacon of energy efficiency.

4) Perfect Transmission Efficiency: Reach unprecedented transmission efficiency with our integrated shaft structure. This innovation directly couples the permanent magnet motor and compressor, featuring a compact design with 100% transmission efficiency. Bid farewell to traditional couplings and surplus components, as this streamlined design perfects performance with elegance.

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

6) Superior Energy Efficiency: Set sail on a quest for superior energy efficiency! Our system boasts a frequency conversion range from 25% to 100%, significantly surpassing the conventional 50% to 100% range. It delivers over 30% energy savings compared to fixed-speed compressors, with an extra savings of roughly 5% over standard variable frequency models. Greater gas consumption fluctuations lead to even more remarkable savings.

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

8) Cutting-Edge Internal Spray Curtain Cooling: Our pioneering internal spray curtain cooling technology is unmatched in energy efficiency. It provides extraordinary cooling, significantly lowering compressed air temperatures. Achieving nearly 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, which skillfully lessens the compression ratio per stage. This intelligent design minimizes internal leakage from high to low-pressure zones, ensuring optimal performance and reliability.

10) Outstanding Noise Reduction: Indulge in a quieter workspace with our two-stage compression process, designed to lower the compression ratio. Experience significantly reduced noise levels, especially during unloading phases, without sacrificing power or efficiency.

11) Streamlined Maintenance and Service: Simplify maintenance and service with our two-stage compressor unit. Maintaining 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 productive.

 

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. Unmatched Price Advantage

Enjoy the exclusive benefit of direct ex-factory pricing, empowering our esteemed clientele to stand out in the marketplace and gain a significant competitive edge.

2. Seamless Direct Deal
Access our comprehensive product range straight from the factory, ensuring you receive highly cost-effective solutions brimming with exceptional value.

3. Exceptional OEM & ODM Services
Utilize our factory's outstanding production and management capabilities to acquire tailor-made OEM and ODM services, perfectly fashioned to satisfy your distinct specifications.

4. Bespoke Customized Service
We welcome non-standard and export orders with versatile voltage, power, and pressure specifications, each exquisitely tailored to your precise needs. Contact us to explore how we can fulfill your specific requirements.

5. Welcoming Small Orders
Embrace the exceptional quality of our products with a small trial order, meticulously crafted to meet your initial assessment needs.

6. Expedited Fast Delivery
Enjoy the peace of mind that comes with our steadfast commitment to delivering high-quality products punctually with every order.

7. Comprehensive Authorization
We grant our valued distributors complete authorization certificates, empowering you to confidently market and distribute our distinguished SANZHI brand products with pride and assurance.

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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 tailored 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.