China Supplier Sanzhi 75HP Air Cooling Compressor, Powerful 55kw Two-Stage Performance Screw Air Compressor with Permanent Magnet Variable-Frequency Drive

• 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 intricately crafted frontside of our compressor's internal architecture, where every component is seamlessly integrated to ensure peak performance and unmatched durability. This harmonious design is a testament to our commitment to quality engineering.

Internal Structure Backside: Delve into the refined backside of the internal structure, expertly engineered to bolster the core capabilities of the system. This design not only enhances operational stability but also underscores the sophisticated engineering behind our compressor.


Working Principle: Experience the groundbreaking working principle of the Sanzhi Compressor, where state-of-the-art technology and the art of air compression converge. This synergy results in a compressor that delivers remarkable efficiency and unparalleled power for your needs.

In the ideal realm of air compression, the energy required for single-stage pressure transmission is theoretically identical to the combined power needed for multi-stage compression. However, practical applications reveal increased power usage due to factors like coupling transmission losses, bearing friction, and the cooling effects of liquid viscosity. By intelligently reducing the compression ratio at each stage, you can minimize unnecessary power expenditure, allowing multi-stage compression to be more power-efficient than single-stage alternatives.

Our two-stage screw air compressor stands as a feat of engineering brilliance, incorporating a dual-stage rotary screw design. Each stage houses an active and a passive screw, with the active screw energizing the passive one through an external power source. The first stage employs a screw group with a low-pressure rate, while the second stage features a high-pressure rate group. As the screws rotate, a sealing air film surrounds each, compressing the gas through a seamless cycle of suction, pressurization, and exhaust, ensuring exceptional performance.

First stage compression: In this foundational phase, the two-stage screw air compressor utilizes a low-pressure rate screw group to initiate gas compression. Gas is drawn into the screw compression chamber through the suction valve, and as the screw rotor spins rapidly, the gas is progressively expelled and prepared for the next compression phase.

Second stage compression: In this sophisticated phase, gas is directed into a confined screw space within the second-stage screw group. Here, it is subjected to heightened temperature and pressure, leading to efficient compression. The exhaust valve opens, effectively extracting the high-pressure gas, thus completing the compression sequence with precision.

Initially, natural air is drawn into the compression system through an air filter, mixing with a small amount of lubricating oil in the compression chamber. This blend undergoes primary compression, reaching an interstage pressure level. It navigates through a cooling channel filled with abundant oil mist, which significantly reduces its temperature. The cooled, compressed gas then advances to the second-stage rotor for further compression, achieving the final exhaust pressure. This results in a fully optimized compression cycle as the air is released through the exhaust valve, epitomizing efficiency.

 

Detailed Photos

 

 

 

1) High Efficiency of PM Motor: Experience the unmatched efficiency of our state-of-the-art permanent magnet motor, which offers an impressive 20-30% boost in efficiency compared to traditional motors. This innovative design guarantees consistent and optimal performance across a range of operating frequencies, ensuring peak productivity at all times.

2) Motor Maintenance-Free: Our cutting-edge permanent magnet motor is engineered without internal bearings, completely doing away with the requirement for bearing maintenance and replacement. This design innovation not only saves you from unnecessary costs but also reduces maintenance effort, giving you a hassle-free experience.

3) Integrated Frequency Converter: Equipped with China's most advanced frequency system, this air compressor features extensive speed regulation with unmatched precision, allowing for energy-efficient operations that are perfectly tailored to your specific air requirements.

4) No Transmission Loss: The innovative direct connection of the integrated shaft design between the motor and compressor ensures a compact and seamless structure with 100% transmission efficiency. It elegantly eliminates the need for couplings or any other transmission components.

5) Variable Frequency Start and Soft Start Our motor's sophisticated variable frequency start and soft start capabilities significantly mitigate the impact on power grid equipment, thereby preventing any potential risk of damage to your electrical systems.

6) Reduce Energy Consumption: Boasting a frequency conversion range from 25% to 100%, this system surpasses fixed-speed compressors by achieving more than 30% in energy savings. When compared to standard variable frequency compressors, it ensures an additional 5% energy savings, with remarkable efficiency in scenarios with fluctuating gas consumption.

7) Two-Stage Compression Unique Air End: Our cutting-edge two-stage compression screw machine design seamlessly integrates the first and second-stage compression rotors within a single casing. Each rotor is independently driven by gears, optimizing linear speed and significantly enhancing compression efficiency.

8) Internal Spray Curtain Cooling Method: By employing a high-energy-saving internal spray curtain cooling technique, it effectively lowers compressed air temperatures, closely approaches isothermal compression, minimizes pressure loss between stages, and significantly boosts compression efficiency.

9) Reduce Internal Leakage: Through the implementation of two-stage compression, we significantly decrease the compression ratio per stage, thereby minimizing internal leakage from high to low pressure, which enhances volume efficiency.

10) Noise Reduction: The innovative two-stage compression effectively diminishes the compression ratio, resulting in a substantial reduction in noise levels, especially during unloading operations, providing a quieter and more pleasant working environment.

11) Easy Maintenance and Service: This two-stage compressor unit retains the user-friendly simplicity of single-stage systems, apart from the screw air end, ensuring ease of maintenance and service, making it convenient and straightforward for end-users.

 

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: Revel in our unmatched pricing strategies that propel you beyond your competitors.

By offering you the direct ex-factory prices, we empower you to maintain a strong position in your competitive market.

2. Direct Deal: Unlock the benefits of purchasing directly from the source, enhancing efficiency and savings.
Our products are delivered directly from the factory, ensuring you receive the most economical solutions available.

3. OEM & ODM Services: Bespoke solutions crafted exclusively for you.
Our factory's extensive production and superior management capabilities enable us to provide top-tier OEM/ODM services tailor-made to your specifications.

4. Customized Service: Tailored solutions crafted to meet your specific requirements.
We welcome non-standard, export, and custom orders for voltage, power, and pressure. Share your specific needs, and we will fulfill them with precision.

5. Accept Small Orders: Flexibility to start with minimal orders, ensuring your confidence in our exceptional products.
Initiate with a small trial order to experience the exceptional quality and craftsmanship of our products.

6. Fast Delivery: Dependable and swift delivery of top-notch products.
Receive high-caliber products with the guarantee of prompt and efficient delivery, ensuring your satisfaction.

7. Complete Authorization: Empower distributors with full access to our elite brand, SANZHI.
We provide complete authorization certificates to distributors, allowing you to confidently market and distribute our distinguished SANZHI brand products.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd is a trailblazing name in the industry, renowned for producing cutting-edge screw air compressors and stalwart screw vacuum pumps. With over ten years of unmatched expertise, we offer a rich tapestry of industrial solutions. Our product line spans standard and low-pressure screw air compressors to state-of-the-art permanent magnet frequency conversion screw air compressors, and sophisticated two-stage compression screw air compressors. We meet niche demands with specialized screw air compressors for laser cutting, along with versatile single and double-tank mobile screw air compressors available in electric and diesel models. Our adaptable screw vacuum pumps are engineered for precision and dependability to fulfill your industrial needs seamlessly.

In our production sphere, we harness cutting-edge multi-air compressor assembly lines that are the epitome of efficiency and modern innovation. With the dedication of over 50 skilled professionals, we continually enhance management systems, such as ERP, to significantly slash lead times and ensure the prompt delivery of superior-quality products. This steadfast pursuit of excellence empowers us to meet the diverse requirements of our clients promptly and proficiently.

Our management structure proudly upholds the esteemed ISO9001 quality management system certification, a testament to our commitment to excellence. We implement rigorous quality control standards and stringent processes to ensure that each machine undergoes careful material inspection, exhaustive production inspection, and a thorough pre-delivery inspection. This unyielding dedication ensures that every product we deliver embodies our unwavering commitment to unparalleled quality and reliability.

In customer service, we shine by offering expert pre-sales guidance, aiding customers in selecting air equipment tailored precisely to their facility's needs. Our offerings include high levels of customization, from aesthetic design to functional allocation, with unique, tailor-made products crafted to meet dealers' specific requirements through OEM solutions. For after-sales support, our dedicated professional sales and service team is poised to respond swiftly to customer inquiries, providing exceptional service and ensuring utmost satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, our steadfast mission is to deliver exceptional and dependable products, fostering enduring partnerships with our esteemed clients. We pledge to provide not only efficient service and competitively priced, top-tier machinery but also a trustworthy and gratifying compressed air solution tailored to your unique needs.

Strategically situated in Xinzheng City, Henan Province, China, our state-of-the-art factory offers convenient accessibility, with Xinzheng International Airport just 30 kilometers away, approximately an hour's drive. We warmly welcome you to visit our facilities and witness our unwavering commitment to excellence firsthand.

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.