China Factory Sanzhi 55kw Two-Stage Permanent Magnet VFD/VSD Air Compressor with Adjustable Pressure 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: Behold the front view of our Sanzhi 55kw Two-Stage VFD/VSD Air Compressor with Adjustable Pressure, where precision meets innovation. This impressive assembly of meticulously engineered components is designed for unparalleled performance. The sleek, streamlined design and innovative configurations not only drive the compressor's superior efficiency but also embody the cutting-edge engineering that Sanzhi stands for.

Internal Structure Backside: From the backside, the compressor showcases an elegant fusion of robust components, crafted for enduring reliability and effortless maintenance. This perspective highlights the thoughtful integration of systems and layout, ensuring that the compressor delivers impeccable functionality and durability, making it the epitome of reliable performance.


Working Principle: Explore the sophisticated inner workings of the Sanzhi compressor, where advanced engineering principles blend flawlessly to produce an efficient and seamless compression process. Every stage of operation is a testament to the mastery of technology and innovation, executed with utmost precision to maximize both performance and efficiency, redefining excellence in air compression technology.

In the realm of air compression technology, reaching the perfect equilibrium where the power required for single-stage pressure transmission matches the entire power of multi-stage compression is a challenging feat. Real-world obstacles like coupling power loss, bearing friction, and cooling due to increased liquid viscosity raise actual power consumption. To counteract these, strategically reducing the compression ratio at each stage proves advantageous. This ensures the energy demands for multi-stage compression remain below those of a single-stage system, thus enhancing performance while minimizing energy wastage.

Introducing our state-of-the-art two-stage screw air compressor, a marvel of contemporary design featuring dual rotary screw compressors, each with both an active and a passive screw. The active screw, energized by an external transmission, sets the passive screw in motion, resulting in dynamic synergy. The process begins with a low-pressure screw group, transitioning to a high-pressure configuration at the next stage. Each screw is enveloped by a sealing air film, enhancing the rotational process and ensuring efficient gas compression through a flawless cycle of suction, pressurization, and exhaust, guaranteeing maximum efficiency and outstanding performance.

First stage compression: In this pivotal initial phase, our two-stage screw air compressor expertly harnesses a low-pressure rate screw group to compress the gas. As the gas enters the screw compression chamber through the suction valve, the high-speed rotation of the screw rotor compresses and propels it toward the second stage, laying a solid foundation for efficient and effective compression.

Second stage compression: As the gas advances to the second stage, it encounters a more confined screw space where temperature and pressure intensify. Upon reaching peak compression, the exhaust valve activates, efficiently discharging the high-pressure gas, thereby ensuring the system consistently operates at optimal efficiency.

Embarking on its journey, naturally purified air is drawn through an air filter into the first compression stage, where it mingles with a trace of lubricating oil within the compression chamber. Undergoing compression to interstage pressure, it moves through the cooling channel. Here, it meets a rich oil mist that significantly reduces its temperature. The cooled, compressed gas then advances to the second-stage rotor for further compression, achieving the final exhaust pressure. This meticulously orchestrated process culminates as the gas exits through the exhaust valve, marking the completion of a flawlessly managed compression cycle.

 

Detailed Photos

 

 

 

1) Unrivaled Efficiency of the PM Motor: Step into a realm of unmatched efficiency with our expertly engineered permanent magnet motor! This powerhouse boasts a vast constant torque and a formidable weak magnetic range, outshining traditional models by an astonishing 20-30%. Regardless of whether it's operating within or beyond the rated frequency, this motor delivers consistently outstanding efficiency, setting a new benchmark for energy performance that others can only aspire to.

2) Effortless Motor Maintenance: Maintenance redefined! Our permanent magnet motor's cutting-edge design eradicates the need for internal bearings. This innovation not only slashes maintenance costs but also virtually eliminates the hassles associated with motor bearing upkeep and replacement. Enjoy smooth, uninterrupted operation with remarkable ease.

3) Effortlessly Integrated Frequency Converter: Leverage the prowess of China's foremost frequency system, offering an expansive speed regulation range with unparalleled precision. Seamlessly attuned to real-time gas demands, it ensures the air compressor's energy-saving capabilities are fully realized, positioning it as a marvel of energy efficiency.

4) Perfect Transmission Efficiency: Experience transmission efficiency like never before with our integrative shaft structure that directly couples the permanent magnet motor to the compressor. This compact design boasts 100% transmission efficiency, doing away with traditional couplings or extra components, thereby streamlining and optimizing performance.

5) Optimized Variable Frequency and Soft Start: Empower your electrical systems with our refined variable frequency and soft start technologies. They adeptly reduce the impact on power grid equipment, offering superior protection from potential damage while ensuring operational smoothness and reliability.

6) Superior Energy Efficiency: Step into the future of energy efficiency! Our system delivers a frequency conversion range from 25% to 100%, well beyond the standard 50% to 100%. It achieves over 30% energy savings compared to fixed-speed compressors and offers approximately 5% more savings than standard variable frequency models, with higher gas consumption variability yielding even greater energy efficiencies.

7) Groundbreaking Two-Stage Compression Air End: Discover the revolutionary design of our two-stage compression screw machine. Ingeniously crafted, it integrates first and second-stage rotors within a single casing. Each rotor is gear-driven, maintaining ideal linear speed to achieve peak compression efficiency, pushing performance boundaries to new heights.

8) Cutting-Edge Internal Spray Curtain Cooling: Our pioneering internal spray curtain cooling technology leads the pack in energy efficiency, delivering unparalleled cooling performance that dramatically reduces compressed air temperatures. By achieving near-isothermal compression, it minimizes pressure loss and compression ratio, significantly boosting overall efficiency.

9) Reduced Internal Leakage: Enhance volumetric efficiency with our expertly designed two-stage compression system, which decreases the compression ratio in each stage. This intelligent design reduces internal leakage from high to low-pressure areas, ensuring peak performance and unwavering reliability.

10) Outstanding Noise Reduction: Our two-stage compression technique is meticulously engineered to lower the compression ratio, resulting in significantly reduced noise levels, notably during unloading phases. Experience a quieter workspace without sacrificing power or efficiency.

11) Streamlined Maintenance and Service: We've revolutionized maintenance and service with our two-stage compressor unit. By maintaining the familiar system structure of single-stage compression, except for the screw air end, it simplifies maintenance tasks and user operations, ensuring your workflow remains smooth and effortlessly 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

Experience unparalleled market success with our direct ex-factory pricing. This distinct advantage positions you to outshine competitors and capture a commanding market presence.

2. Direct Deal
Access an impressive array of products directly from our factory, guaranteeing you cost-effective and value-rich solutions that are unmatched in quality and price.

3. OEM & ODM Services
Leverage our superior production and management expertise to enjoy bespoke OEM and ODM services. These are meticulously crafted to align with your unique specifications and demands.

4. Customized Service
Embrace flexibility with our custom services, accommodating non-standard and export orders. We tailor voltage, power, and pressure requirements to meet your exact specifications. Reach out to discuss your unique needs.

5. Accept Small Orders
Discover the exceptional quality of our offerings through a small trial order, perfectly designed for your initial evaluations and assessments.

6. Fast Delivery
Relax with the assurance of our fast and reliable delivery service. Our dedication to timely shipping ensures you receive high-quality products exactly when needed.

7. Complete Authorization
We provide our trusted distributors with full authorization certificates, empowering you to confidently promote and distribute our esteemed SANZHI brand products with ease.

More Products

 

Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd stands as a beacon of excellence in the industry, renowned for over a decade of unrivaled expertise in the exquisite creation of superior screw air compressors and vacuum pumps. Our extensive and diverse portfolio offers a vast array of choices, including both standard and low-pressure screw air compressors. Embrace the future with our groundbreaking permanent magnet frequency conversion screw air compressors and our advanced two-stage compression models. For specialized requirements, delve into our screw air compressors crafted for laser cutting, along with our versatile single and double-tank mobile screw air compressors. Elevate your operations with our high-efficiency electric mobile screw air compressors, durable diesel mobile alternatives, and cutting-edge screw vacuum pumps, among other innovative solutions.

Our state-of-the-art production facilities are the epitome of modern innovation, featuring advanced multi-air compressor assembly lines designed for peak efficiency. These facilities symbolize the zenith of lean manufacturing and contemporary production methodologies. Our dedicated team of over 50 skilled professionals continuously refines our management systems, including ERP, to drastically reduce lead times, ensuring our esteemed clients receive premium products promptly and reliably.

Our steadfast dedication to superior quality management is epitomized by our factory's prestigious ISO9001 certification, emphasizing our strict adherence to rigorous quality management protocols. Every machine embarks on a comprehensive quality journey, characterized by meticulous material inspections, detailed production evaluations, and stringent pre-delivery inspections, ensuring only the finest machines are dispatched from our premises.

In the domain of customer service, we excel by providing expert pre-sales guidance, assisting clients in selecting the most suitable air equipment tailored to their precise requirements. We offer extensive customization in both aesthetics and configuration. Our unrivaled capability to deliver bespoke products that align with dealers' unique needs, including OEM solutions, distinguishes us in the market. Moreover, our committed sales and service teams provide swift and proficient after-sales support, ensuring complete customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, our fervent commitment to crafting products that embody exceptional quality and unwavering reliability cultivates enduring relationships with our valued clients. Our devotion to timely delivery, outstanding 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 a mere 30 kilometers from Xinzheng International Airport. We cordially invite you to visit us, offering complimentary transfers from the airport to our facility, ensuring your experience is seamless and graciously 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.