China Supplier Sanzhi 75HP Air Cooling Two-Stage Screw Compressor with Intelligent Operating System, 55kw Power 380V/50Hz, for Semiconductor, Steel, Rubber

• 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 meticulously designed frontside of our compressor's internal architecture-a masterpiece of engineering that seamlessly integrates vital components. This harmonious design ensures peak performance and extraordinary durability, setting new standards in the industry.

Internal Structure Backside: Immerse yourself in the sophisticated design of the internal backside, crafted with precision to offer exceptional support to the core functions. This engineering marvel enhances overall operational stability and reliability, ensuring consistent performance under all conditions.


Working Principle: Step into the future of air compression with the Sanzhi Compressor's revolutionary working principle. By merging cutting-edge technology with the science of air compression, this compressor delivers unmatched efficiency and power, redefining industry benchmarks.

In a flawless air compression process, the theoretical power needed for single-stage pressure transmission is identical to the combined power required for multi-stage compression. However, in real-world applications, actual working power increases due to factors such as coupling transmission losses, bearing friction, and the cooling effects of liquid viscosity. By strategically minimizing the compression ratio at each stage, unnecessary power consumption is reduced, enabling multi-stage compression to require less total power than a single-stage system.

The two-stage screw air compressor stands as a testament to engineering brilliance with its dual-stage rotary screw configuration. Each stage, driven by an external power source, includes an active and passive screw. The initial stage utilizes a low-pressure rate screw assembly, while the subsequent stage features a high-pressure rate assembly. Surrounding each screw is a sealing air film, which compresses the gas through a flawless cycle of suction, pressurization, and exhaust, achieving exceptional efficiency.

First Stage Compression: In this initial stage, the two-stage screw air compressor employs a low-pressure rate screw group to compress gas. Gas enters through the suction valve into the screw compression chamber, where the rapidly rotating screw rotor progressively expels and moves the gas to the subsequent compression stage.

Second Stage Compression: In this advanced phase, the gas is directed into a constrained screw space within the second-stage screw group. Here, it is compressed at elevated temperature and pressure. The exhaust valve then opens, efficiently releasing the high-pressure gas and completing the compression sequence with precision.

Natural air initially enters the compression system through an air filter and combines with a small amount of lubricating oil within the compression chamber. This mixture undergoes initial compression to an interstage pressure level and passes through a cooling channel, where abundant oil mist significantly reduces its temperature. The cooled and compressed gas then proceeds to the second-stage rotor for further compression, reaching the final exhaust pressure. The cycle culminates in a fully optimized compression process as the air is liberated through the exhaust valve.

 

Detailed Photos

 

 

 

1) High Efficiency of PM Motor: Experience unparalleled efficiency with our state-of-the-art permanent magnet motor, boasting an extraordinary 20-30% improvement over conventional motors. Its advanced design ensures unwavering performance at all frequencies, always delivering peak efficiency.

2) Motor Maintenance-Free: Revolutionize your maintenance routine with our maintenance-free permanent magnet motor. Its ingenious design eliminates internal bearings, eradicating maintenance and replacement hassles, offering cost-effective, reliable performance.

3) Integrated Frequency Converter: Harness the power of China's leading frequency system in our compressor, providing meticulous speed control for optimal energy usage. Tailor your air supply needs precisely and elevate your efficiency to new heights.

4) No Transmission Loss: Witness seamless efficiency with our direct integrated shaft motor-compressor design, ensuring a compact setup with perfect 100% transmission efficiency. Say goodbye to unnecessary couplings and components.

5) Variable Frequency Start and Soft Start Embrace the protective power of variable frequency and soft start features, reducing electrical strain and safeguarding your infrastructure against potential damage.

6) Reduce Energy Consumption: Achieve unparalleled energy savings with our system's 25% to 100% frequency range, delivering over 30% savings over fixed-speed compressors, and exceeding standard variable frequency units by 5%, especially in dynamic gas demand scenarios.

7) Two-Stage Compression Unique Air End: Our unique two-stage compression air end combines first and second-stage rotors in one housing, each gear-driven for optimal linear speeds, dramatically enhancing compression efficiency.

8) Internal Spray Curtain Cooling Method: Utilize our advanced internal spray curtain cooling for reduced air temperatures and near-isothermal compression, minimizing pressure losses and boosting overall efficiency.

9) Reduce Internal Leakage: Two-stage compression reduces per-stage ratios, effectively curtailing internal leakage from high to low pressures, thus enhancing volumetric efficiency.

10) Noise Reduction: Enjoy a calmer workspace with our two-stage compression system, which lowers the compression ratio, noticeably reducing noise, particularly during unloading.

11) Easy Maintenance and Service: Enjoy the simplicity of single-stage systems in our two-stage compressor unit, ensuring easy maintenance and user-friendly service, without compromising on efficiency.

 

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: Harness our unparalleled pricing strategy to secure a substantial advantage over your rivals.

By offering our esteemed customers direct ex-factory prices, we empower you to dominate your competitive landscape with unmatched cost-efficiency.

2. Direct Deal: Optimize your operational efficiency and maximize cost reduction by purchasing directly from our factory.
With direct factory shipments, rest assured you're obtaining the most economical and efficient solutions available.

3. OEM & ODM Services: Providing tailored solutions meticulously crafted to meet your distinctive needs.
Our cutting-edge production capabilities and scrupulous management ensure we provide exceptional OEM/ODM services, precisely tailored to your specifications.

4. Customized Service: Shape your solutions with precision to flawlessly meet your specific requirements.
We gladly accommodate non-standard, export, and custom orders for voltage, power, and pressure. Submit your specifications, and we will turn them into reality.

5. Accept Small Orders: Providing flexibility with small orders to validate the excellence of our products.
Begin with a trial order to experience firsthand the superior quality of our distinguished offerings.

6. Fast Delivery: Guaranteeing swift and dependable delivery of premium products straight to your location.
Receive superior products with assured timely and competent delivery services, ensuring your utmost satisfaction.

7. Complete Authorization: Equip distributors with comprehensive rights to promote our esteemed brand.
We furnish distributors with full authorization certificates, enabling you to confidently market our prestigious SANZHI brand products with assurance.

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Packaging & Shipping

Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd is a distinguished leader in the manufacturing landscape, specializing in the creation of innovative screw air compressors and robust screw vacuum pumps. With over ten years of unparalleled experience, we provide a comprehensive and varied range of industrial solutions. Our product collection features standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion screw air compressors, and advanced two-stage compression screw air compressors. We address specialized applications such as screw air compressors for laser cutting and offer a wide range of mobile screw air compressors with single and double-tank options, available in both electric and diesel models. Our expertly crafted screw vacuum pumps are designed with meticulous precision and reliability to meet your industrial demands.

In our production domain, we operate state-of-the-art multi-air compressor assembly lines that set new standards for efficiency and modernity. Our dedicated team of over 50 skilled employees continuously refines management systems like ERP to drastically reduce lead times, ensuring the prompt delivery of high-quality products. Our unwavering pursuit of excellence empowers us to effectively and efficiently meet the diverse needs of our clients.

Within our management structure, our facility proudly holds the prestigious ISO9001 quality management system certification, reflecting our commitment to stringent quality control standards. We implement rigorous processes that ensure each machine undergoes comprehensive material inspection, exhaustive production checks, and a thorough pre-delivery review. This unwavering dedication guarantees that every product we ship is a testament to our promise of quality and reliability.

In customer service, we excel by offering expert pre-sales guidance, helping customers choose air equipment precisely tailored to their facility's needs. Our products are highly customizable, from aesthetic design to functional configuration, and we provide OEM solutions to create unique products that meet dealers' exact specifications. Our robust after-sales support features a professional sales and service team, ready to swiftly address customer inquiries, ensuring an outstanding service experience.

At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior and stable products, fostering long-lasting relationships with our esteemed clientele. We are committed to offering not only efficient service and competitively priced, high-quality machinery but also reliable and satisfying compressed air solutions tailored to meet your specific needs.

Our cutting-edge factory is strategically located in Xinzheng City, Henan Province, China, providing convenient access from Xinzheng International Airport, just 30 kilometers away, approximately an hour's drive. We warmly invite you to visit our company and experience our steadfast 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.