China 55kw Sanzhi Permanent Magnet VFD 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: The forefront of innovation is revealed in the meticulous detailing of the compressor's front internal structure. Experience the precision-engineered components that contribute to its unparalleled operation.

Internal Structure Backside: Explore the intricate design at the back of the compressor, showcasing a seamless integration of parts that work harmoniously to deliver superior air compression performance.


Working Principle: Immerse yourself in the sophisticated working principle of our compressor, designed for optimal energy efficiency and reliability. Understand the advanced mechanics that power this cutting-edge technology.

In an ideal air compression process, power efficiency is paramount. For single-stage pressure transmission, the power required equals that of multi-stage compression. However, in reality, actual working power increases due to transmission power loss, bearing friction, and liquid viscosity cooling effects. By strategically reducing each stage's compression ratio, we minimize useless power, ensuring that the total power for multi-stage compression is less than that required for a single stage.

The two-stage screw air compressor is a masterpiece of engineering, featuring a two-stage rotary screw mechanism. Each stage embodies an active and a passive screw. The active screw propels the passive screw through an external power device. The first stage operates at a low-pressure rate, while the second enhances to a high-pressure rate. Surrounding each screw is a sealing air film that ensures precision compression through the phases of suction, pressurization, and exhaust.

First stage compression: The initial phase of compression harnesses a low-pressure rate screw group that effectively squeezes the gas. It enters the screw compression chamber via the suction valve. As the screw rotor turns at high speed, the gas is methodically compressed and prepared for the subsequent stage.

Second stage compression: In the secondary phase, the gas engages in a more confined screw space, subjected to heightened temperature and pressure. This action prompts the exhaust valve to release, efficiently expelling high-pressure gases from the system, completing the compression cycle.

Natural air enters the system's first stage through a precision-engineered air filter, merging with a precise amount of lubricating oil in the compression chamber. This mixture is compressed to interstage pressure. The resultant gas proceeds through a cooling channel, interacting with substantial oil mist to drastically reduce temperature. The cooled gas is then processed by the second-stage rotor, achieving final exhaust pressure through two-stage compression, and is expelled through the exhaust valve, marking the completion of the comprehensive compression process.

 

Detailed Photos

 

 

 

1) Exceptional Efficiency of PM Motor: Experience an unparalleled level of efficiency with our permanent magnet motor, offering a constant torque range and an expansive weak magnetic range. Revel in a performance boost of 20-30% higher efficiency than traditional motors. This motor's design ensures that even when operating away from its rated frequency, it maintains an impressively stable efficiency, delivering consistently high performance.

2) Maintenance-Free Motor Design: Our permanent magnet motor is innovatively engineered without internal bearings, eliminating the need for costly maintenance and replacement associated with motor bearings, ensuring seamless operation and cost efficiency.

3) Advanced Integrated Frequency Converter: Incorporating China's leading frequency system, our compressor features a broad spectrum of speed regulation with high precision. This allows for frequency modulation to match the real-time gas demand, significantly enhancing energy savings and ensuring optimal performance with every operation.

4) Zero Transmission Loss: The embedded integrated shaft directly connects the permanent magnet motor and the compressor, resulting in a highly compact structure. By eliminating couplings and other transmission components, we ensure 100% transmission efficiency, maximizing energy utilization.

5) Soft Variable Frequency Motor Start: The motor's variable frequency and soft start capabilities dramatically reduce electrical and mechanical stress on power grid equipment, preventing potential damage and ensuring longevity of electrical components.

6) Optimized Energy Consumption: Enjoy remarkable energy savings with a frequency conversion range spanning 25% to 100%, surpassing ordinary conversions (50% to 100%). Compared to fixed-speed air compressors, this model saves over 30% in energy. Additionally, it provides a 5% energy savings advantage over standard variable frequency air compressors. The greater the fluctuations in system gas consumption, the more significant the energy-saving benefits.

7) Unique Two-Stage Compression Air End: Our two-stage compression screw machine boasts a uniquely designed air end, integrating both first-stage and second-stage compression rotors within a single casing. Each rotor is driven directly by gears, optimizing their linear speed and enhancing compression efficiency.

8) Innovative Internal Spray Curtain Cooling: Employ our high energy-saving internal spray curtain cooling method, which offers superior cooling capabilities. This significantly lowers the temperature of compressed air, achieving near-isothermal compression. Additionally, it minimizes pressure loss between stages, reducing the compression ratio and boosting compression efficiency.

9) Minimized Internal Leakage: Adopting a two-stage compression approach, we reduce the compression ratio for each stage. This minimizes internal leakage from high-pressure to low-pressure ends, enhancing volume efficiency and ensuring optimal performance.

10) Superior Noise Reduction: Two-stage compression technology not only lowers the compression ratio but also significantly dampens noise levels, particularly during unloading, for a quieter operation environment.

11) Simplified Maintenance and Service: Our two-stage compressor unit is designed for ease of maintenance and service, with structural systems similar to single-stage compressors, apart from the screw air end. This facilitates user convenience and simplifies upkeep.

 

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. Unbeatable Price Advantage

We offer our customers factory-direct pricing, ensuring you maintain a competitive edge in the market.

2. Seamless Direct Deal Experience
Our entire product range is available directly from our factory, allowing us to offer you incredibly cost-effective solutions.

3. Tailored OEM & ODM Services
Leverage our factory's robust production and management capabilities for customized OEM/ODM services tailored to your needs.

4. Bespoke Customization Service
We cater to non-standard orders, including exports and custom voltage/power/pressure specifications. Reach out with your special requirements.

5. Welcoming Small Orders
Initiate a small trial order to evaluate the superior quality of our offerings.

6. Rapid and Reliable Delivery
Benefit from our commitment to quality and punctuality with every delivery.

7. Comprehensive Authorization
For our valued distributors, we provide full authorization certificates, empowering you to proudly represent Sanzhi's brand.
 

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd., with over a decade of robust industry experience, is a premier manufacturer specializing in screw air compressors and screw vacuum pumps. Our diverse and innovative product line comprises a spectrum of solutions including normal and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, advanced two-stage compression screw air compressors, customized solutions for laser cutting, and versatile mobile screw air compressors available in single-tank, double-tank, electric, and diesel variations. Our exceptional array is completed by our high-performance screw vacuum pumps.

Our production processes are crafted for peak efficiency, utilizing state-of-the-art multi-air compressor assembly lines that are both lean and modern. Supported by a dedicated team of over 50 professionals, we continually refine our management systems, such as ERP, to reduce lead times and ensure the rapid delivery of top-tier, certified products.

In the realm of management, our factory proudly upholds the esteemed ISO9001 quality management system certification. We are committed to the rigorous enforcement of strict quality control processes, ensuring that each machine undergoes meticulous material, production, and pre-delivery inspections, delivering reliability and excellence with every product.

Our customer service is characterized by comprehensive support and customization. In pre-sales, we provide expert guidance to help customers select the ideal air equipment tailored to their unique needs, offering high levels of customization in both appearance and configuration. We also specialize in OEM solutions to cater to specific dealer requirements. In the realm of after-sales, our proficient sales and service team is poised to offer swift and effective responses, ensuring customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd., our unwavering commitment is to offer top-quality, reliable, and stable products, forging long-lasting partnerships with our valued customers. With our promise of efficient delivery, excellent machines, and competitive pricing, we stand as your dependable partner in providing exceptional compressed air solutions.

Nestled in the vibrant city of Xinzheng, Henan Province, China, our factory is conveniently accessible. We offer a warm welcome and can arrange to pick you up from Xinzheng International Airport, just an hour's drive over a 30-kilometer distance, ensuring a seamless visit to our company.
 

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.