China Reliable Sanzhi 75HP Two-Stage Screw Air Compressor, 55kw Power Output, for Leak Detection and Pressure Testing, Pet Blow Molding

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ55VF-II
• 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: Feast your eyes on the expertly crafted frontside of our compressor's internal structure. This area has been artistically designed to integrate components flawlessly, ensuring superior performance and robust durability for every operation.

Internal Structure Backside: Dive into the intricately engineered backside, deliberately constructed to offer outstanding support to the system's essential functions. This thoughtful design significantly boosts the system's overall operational stability, catering to your high-performance needs.


Working Principle: Discover the groundbreaking working principle of the Sanzhi Compressor. Here, state-of-the-art technology meets the science of air compression, achieving unmatched efficiency and sheer power delivery.

In the realm of ideal air compression, the theoretical power demand for single-stage pressure aligns with the total power for multi-stage compression. Yet, in practical scenarios, working power increases due to factors like coupling transmission losses, bearing friction, and cooling effects from liquid viscosity. By judiciously reducing the compression ratio at each stage, unnecessary power usage is minimized, allowing multi-stage compression to demand less power than single-stage compression.

The two-stage screw air compressor stands as an engineering masterpiece, featuring a dual-stage rotary screw design. Each stage includes active and passive screws, with the active screw driving the passive one via an external power source. The first stage employs a low-pressure rate screw group, while the second stage uses a high-pressure rate group. Surrounding each screw is a sealing air film, which, during rotation, compresses gas through a smooth cycle of suction, pressure, and exhaust, achieving superior efficiency.

First Stage Compression: In this essential initial phase, the two-stage screw air compressor employs a low-pressure rate screw group to compress the gas. As the gas is drawn into the screw compression chamber through the suction valve, the high-speed rotation of the screw rotor incrementally forces the gas out, effectively transporting it to the next compression phase.

Second Stage Compression: In this advanced phase, the gas enters a confined screw space within the second-stage screw group, where it's subjected to increased temperature and pressure, achieving high-efficiency compression. The exhaust valve then opens, extracting the high-pressure gas with remarkable efficiency, completing the compression cycle seamlessly.

Natural air is initially drawn into the compression system through an air filter, where it mixes with a scant amount of lubricating oil within the compression chamber. This mixture undergoes primary compression to an interstage pressure level before passing through a cooling channel rich in oil mist, which effectively lowers its temperature. The cooled, compressed gas then enters the second-stage rotor for further compression to the final exhaust pressure, culminating in a fully optimized compression cycle as the air is released via the exhaust valve.

 

Detailed Photos

 

 

 

1) High Efficiency of PM Motor: Step into a world of exceptional energy efficiency with our permanent magnet motor, which delivers a remarkable 20-30% boost in efficiency over conventional motors. This cutting-edge design guarantees consistent high performance, no matter the operating frequency, ensuring that your operations run at peak efficiency every time.

2) Motor Maintenance-Free: Our innovative permanent magnet motor comes with a unique design that excludes internal bearings, thereby completely eliminating any need for bearing maintenance or replacement. This results in substantial cost savings and a significant reduction in maintenance efforts.

3) Integrated Frequency Converter: This compressor is equipped with China's premier frequency system, providing an extensive range of speed regulation with precision accuracy. It facilitates energy-efficient operations that adapt perfectly to your specific air requirements, maximizing efficiency.

4) No Transmission Loss: Enjoy the benefits of a compact and efficient setup with our direct connection integrated shaft design. This innovative design connects the motor and compressor directly, achieving 100% transmission efficiency and removing the need for couplings or other transmission parts.

5) Variable Frequency Start and Soft Start: Our motor's advanced variable frequency start and soft start features greatly diminish the impact on your power grid equipment, safeguarding against potential electrical damage and ensuring smooth operation.

6) Reduce Energy Consumption: Our system, with its impressive frequency conversion range from 25% to 100%, surpasses fixed-speed compressors by delivering over 30% in energy savings. When compared to standard variable frequency compressors, it offers an additional 5% energy savings, especially noticeable in fluctuating gas consumption scenarios.

7) Two-Stage Compression Unique Air End: Our exclusive two-stage compression screw machine is engineered with precision, integrating the first and second-stage compression rotors within a single casing. Independently gear-driven, it optimizes the linear speed for each rotor, substantially boosting compression efficiency.

8) Internal Spray Curtain Cooling Method: Our high-energy-saving internal spray curtain cooling method is designed to lower compressed air temperatures effectively. It closely approaches isothermal compression, minimizes pressure loss between stages, and significantly enhances compression efficiency.

9) Reduce Internal Leakage: Our adoption of two-stage compression decreases the compression ratio per stage, effectively reducing internal leakage from high to low pressure and elevating volume efficiency.

10) Noise Reduction: The two-stage compression process not only reduces the compression ratio but also significantly lowers noise levels, particularly during unloading operations, offering a quieter and more serene working environment.

11) Easy Maintenance and Service: This two-stage compressor unit maintains the straightforwardness of single-stage systems, aside from the advanced screw air end, ensuring easy maintenance and user-friendly serviceability 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. Unmatched Price Advantage: Experience unparalleled pricing benefits that propel you ahead of your competitors.

By offering ex-factory prices directly to our customers, we empower you to excel and maintain a competitive edge in your industry.

2. Direct Deal Benefits: Embrace the efficiency and significant savings by purchasing directly from us.
Our products are delivered directly from the factory, ensuring you receive the most economical and effective solutions on the market.

3. OEM & ODM Services: Bespoke solutions expertly tailored for your unique requirements.
With our factory's advanced production and management capabilities, we offer exceptional OEM/ODM services meticulously designed to meet your specific needs.

4. Customized Service Excellence: Crafting tailor-made solutions to perfectly match your precise specifications.
We accommodate non-standard, export, and custom orders for voltage, power, and pressure. Share your detailed requirements, and let us deliver beyond expectations.

5. Small Order Acceptance: Flexibility to start small with complete confidence in our quality.
Initiate with a small trial order to experience the impeccable quality and reliability of our products firsthand.

6. Swift Delivery: Dependably fast and efficient delivery of top-notch products.
Receive our superior products promptly, backed by the assurance of timely and effective delivery services.

7. Full Authorization: Equipping distributors with full access to our renowned SANZHI brand.
We offer comprehensive authorization certificates to distributors, empowering you to confidently market and sell our prestigious SANZHI brand products worldwide.

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Company Profile

 

Sanzhi (Henan) Compressor Co., Ltd stands as a trailblazer in the manufacturing world, specializing in the creation of cutting-edge screw air compressors and resilient screw vacuum pumps. With over ten years of unmatched expertise, we bring forth an extensive product lineup teeming with innovative industrial solutions. Our offerings range from standard and low-pressure screw air compressors to the latest in permanent magnet frequency conversion screw air compressors, as well as sophisticated two-stage compression screw air compressors. We address specialized demands with our laser cutting screw air compressors and provide both single and double-tank mobile screw air compressors, available in electric and diesel versions. Our versatile screw vacuum pumps are masterfully engineered to meet your precise industrial requirements with exceptional precision and dependability.

In the sphere of production, Sanzhi thrives with our cutting-edge multi-air compressor assembly lines that set the benchmark for efficiency and modernity. Propelled by a dedicated team of over 50 expert employees, we are relentless in enhancing management systems, such as ERP, to significantly curtail lead times and assure the swift delivery of premium-grade products. This relentless pursuit of excellence empowers us to meet the varied demands of our clients with agility and precision.

At the core of our management structure, our facility proudly upholds the esteemed ISO9001 quality management system certification. We remain unwavering in adhering to rigorous quality control practices, executing stringent protocols that ensure every machine undergoes meticulous material inspections, exhaustive production assessments, and comprehensive pre-delivery evaluations. This steadfast commitment guarantees that each product we dispatch stands as a hallmark of our dedication to quality and reliability.

In the realm of customer service, we shine in our pre-sales initiatives by providing customers with expert advice to select air equipment perfectly aligned with their facility needs. Our range of services includes extensive customization, encompassing aesthetic design and functional layout, and we relish in crafting bespoke products to fulfill the specific requirements of dealers through OEM solutions. For after-sales support, we have assembled a devoted team of professional sales and service personnel ready to swiftly attend to customer inquiries, ensuring a service experience that is second to none.

At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to provide superior, stable products while nurturing enduring relationships with our esteemed customers. We are devoted to delivering not only efficient service and competitively priced, high-quality machinery but also a dependable and satisfying compressed air solution that aligns perfectly with your needs.

Strategically located in Xinzheng City, Henan Province, China, our modern factory offers seamless accessibility, being a mere 30 kilometers from Xinzheng International Airport-approximately an hour's drive. We warmly welcome you to visit our company and witness 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.