China Sanzhi High Efficiency 75HP Two-Stage Screw Air Compressor, 0.5-1.6 MPa, Permanent Magnet Frequency Conversion for Semiconductor, Steel, Drone Manufactur

• 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: Discover the masterfully crafted frontside of our compressor's internal structure. This meticulously engineered marvel showcases a harmonious integration of components, ensuring not only superior performance but also remarkable durability. Every detail has been considered to deliver optimal functionality and long-lasting reliability.

Internal Structure Backside: Delve into the sophisticated engineering of the backside of our internal structure. It is meticulously designed to offer robust support to the system's core functions, significantly enhancing the overall stability and performance of the compressor. Experience the pinnacle of engineering excellence with our advanced design.


Working Principle: Discover the groundbreaking working principle of the Sanzhi Compressor, where cutting-edge technology meets the sophisticated science of air compression. This ingenious design delivers unmatched efficiency and power, redefining standards in air compression technology. Experience innovation and superior performance with every use.

In the ideal air compression process, theoretical power for single-stage pressure transmission aligns with the total power needed for multi-stage compression. However, in practical scenarios, the actual working power escalates due to factors such as coupling transmission losses, bearing friction, and cooling effects caused by liquid viscosity. By intelligently managing the compression ratio at each stage, it is possible to minimize unnecessary power consumption, resulting in a multi-stage compression system that demands less energy than a traditional single-stage system. This strategic approach optimizes efficiency and performance.

The two-stage screw air compressor is a remarkable feat of engineering, featuring an advanced dual-stage rotary screw design. Each stage incorporates an active and a passive screw, with the active screw driving the passive screw through an external power source. The first stage is characterized by a low-pressure rate screw group, while the second stage employs a high-pressure rate group. Surrounding each screw is a sealing air film that compresses the gas through a flawless cycle of suction, pressurization, and exhaust during rotation, delivering exceptional levels of efficiency and performance.

First stage compression: In this critical initial phase, the two-stage screw air compressor employs a low-pressure rate screw group to effectively compress the gas. The gas is drawn into the screw compression chamber through the suction valve, and as the screw rotor accelerates at high speed, the gas is gradually compressed and transported to the subsequent phase of compression, setting the stage for maximum efficiency.

Second stage compression: In this advanced compression phase, the gas is introduced into a confined screw space within the second-stage screw group, where it is subjected to elevated temperatures and pressures. The exhaust valve then opens, facilitating the efficient extraction of high-pressure gas from the system, thus completing the compression sequence with precision and effectiveness.

Initially, natural air is drawn into the compression system through an air filter, where it mingles with a trace amount of lubricating oil within the compression chamber. This blend undergoes preliminary compression to reach an interstage pressure level, subsequently passing through a cooling channel where it encounters abundant oil mist that significantly reduces its temperature. The cooled and compressed gas then proceeds to the second-stage rotor for further compression, achieving the final exhaust pressure. This optimally designed compression cycle concludes with the air being released through the exhaust valve, epitomizing efficiency and innovation.

 

Detailed Photos

 

 

 

1) High Efficiency of PM Motor: Unlock the unparalleled performance of our permanent magnet motor, delivering a remarkable 20-30% leap in efficiency over conventional counterparts. Engineered to sustain superior performance across all operating frequencies, it guarantees exceptional efficiency and reliability, ensuring your operations always run at their best.

2) Motor Maintenance-Free: Say goodbye to burdensome maintenance with our innovative permanent magnet motor. Designed without internal bearings, it eliminates the need for regular bearing upkeep and replacements, translating to significant cost savings and reduced downtime.

3) Integrated Frequency Converter: Equipped with China's premier frequency system, this compressor masterfully manages speed regulation with precision. It ensures energy-efficient operations, finely tuned to your specific air demands, optimizing performance and reducing energy wastage.

4) No Transmission Loss: Experience the benefits of our direct connection integrated shaft design between the motor and compressor. This clever configuration ensures a compact and sleek structure with flawless 100% transmission efficiency, obviating the need for couplings or additional transmission components.

5) Variable Frequency Start and Soft Start Our motor's advanced variable frequency start and soft start capabilities are engineered to minimize impacts on power grid equipment, safeguarding your electrical systems from potential harm and ensuring smooth operation.

6) Reduce Energy Consumption: Our cutting-edge system leverages a frequency conversion range of 25% to 100%, surpassing fixed-speed compressors with over 30% energy savings. Compared to standard variable frequency models, it achieves an additional 5% energy savings, showcasing its superior efficiency, especially under varying gas demand conditions.

7) Two-Stage Compression Unique Air End: Harness the power of our innovative two-stage compression screw machine design. By integrating both the first and second-stage compression rotors in a single casing, driven independently by gears, it optimizes linear speed for each rotor, significantly boosting compression efficiency and performance.

8) Internal Spray Curtain Cooling Method: Our high-energy-saving internal spray curtain cooling method is engineered to efficiently lower compressed air temperatures, approaching the ideal of isothermal compression. It reduces pressure loss between stages and significantly enhances compression efficiency, making your operations smoother and more cost-effective.

9) Reduce Internal Leakage: By incorporating two-stage compression, we expertly lower the compression ratio per stage, effectively decreasing internal leakage from high to low pressure, thereby boosting volume efficiency and enhancing system reliability.

10) Noise Reduction: Our two-stage compression design adeptly reduces the compression ratio, significantly curbing noise levels, especially during unloading processes. This results in a quieter, more pleasant working environment, enhancing operator comfort and productivity.

11) Easy Maintenance and Service: Designed with user convenience in mind, our two-stage compressor unit retains the straightforward maintenance of single-stage systems, apart from the innovative screw air end. This ensures ease of maintenance and operation, making it an ideal choice for end-users seeking simplicity without compromising on performance.

 

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 unmatched pricing excellence that propels you beyond your competitors.

By delivering ex-factory prices directly to our valued customers, we empower you to maintain an edge in the competitive marketplace.

2. Direct Deal: Benefit from the streamlined efficiency and cost savings that come with acquiring products straight from the source.
Our entire product lineup is factory-direct, guaranteeing you access to the most economical solutions available.

3. OEM & ODM Services: Discover bespoke solutions crafted specifically for your unique needs.
With our factory's impressive production and management prowess, we offer exceptional OEM/ODM services that cater to your specific requirements.

4. Customised Service: Precision-engineered solutions designed to satisfy your precise specifications.
We welcome non-standard, export, and custom orders for voltage, power, and pressure. Share your specifications, and we will bring them to life.

5. Accept Small Orders: Start small with flexibility and explore the excellence of our products.
Initiate with a small trial order to evaluate the superior quality of our offerings.

6. Fast Delivery: Swift and dependable delivery of top-tier products.
Rest assured of receiving premium products with the guarantee of prompt and efficient delivery.

7. Complete Authorization: Equipping distributors with full access to our distinguished brand.
We grant extensive authorization certificates to distributors, empowering you to market and sell our esteemed SANZHI brand with confidence.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd shines as a leading innovator in the realm of screw air compressors and vacuum pumps, with over a decade of unrivaled experience. Our expansive product lineup showcases a wide array of industrial solutions tailored to meet diverse needs. This includes our standard and low-pressure screw air compressors, the revolutionary permanent magnet frequency conversion models, and advanced two-stage compression screw variants. We specialize in creating precise solutions with our laser cutting screw compressors and offer versatile mobile screw air compressors available in both electric and diesel forms. Our sophisticated screw vacuum pumps are engineered to deliver precision and reliability, catering to your exact industrial requirements.

In production, Sanzhi excels with cutting-edge multi-air compressor assembly lines that embody efficiency and innovation. Powered by a team of over 50 skilled professionals, we continually enhance our management systems, such as ERP, to significantly decrease lead times. This ensures the swift delivery of superior-quality products, allowing us to seamlessly address the varied demands of our esteemed clientele.

Our factory proudly upholds the prestigious ISO9001 quality management certification, reflecting our commitment to stringent quality control. We enforce rigorous standards with meticulous inspections at every production stage-material, during assembly, and pre-delivery. This steadfast dedication certifies that each product we deliver exemplifies our commitment to impeccable quality and unmatched reliability.

In customer service, we excel by offering expert pre-sales guidance, aiding customers in selecting air equipment precisely suited for their facilities. Our offerings are highly customizable, from aesthetic design to functional tailoring, ensuring unique product solutions through OEM for dealers. Our dedicated sales and service team is ready to provide swift responses, ensuring an unparalleled after-sales experience and complete customer satisfaction.

At Sanzhi (Henan) Compressor Co., Ltd, we are dedicated to providing superior, stable products and building enduring relationships with our valued customers. Our mission is to deliver not only efficient service and competitively priced, high-quality machinery but also a dependable and gratifying compressed air solution to suit your needs.

Our cutting-edge factory is strategically situated in Xinzheng City, Henan Province, China. With the convenience of Xinzheng International Airport just 30 kilometers away, approximately an hour's drive, we warmly invite you to visit us 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.