Low-Pressure High Volume High Power Compressor Oil Lubricated Screw Air Compressor Energy Saving 250kw Compressor

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ250D
• 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
• Power: 250kw
• Weight: 5200kg
• Voltage: 220V / 380V / 415V / 440V 3pH
• Pressure: 0.15-0.4 MPa
• Volumetric Flow: 60 M³/Min
• Air Outlet Discharge Size: DN100
• Condition: New
• Transport Package: Standard Wooden Packing
• Specification: 3000*2100*2150mm
• Trademark: SZ
• Origin: Zhengzhou, China
• HS Code: 8414804990
• Production Capacity: 500PCS/Month
• Package Size: 305.00cm * 215.00cm * 225.00cm
• Package Gross Weight: 5200.000kg

Product Description

Special Screw Air Compressor for Powder Conveying, Closed Type Low Pressure Stationary Type Screw Air Compressors for Cement Mixing Plant, Flour mill, Coal Ash, Mineral Powder, 11KW, 22KW, 37KW,45KW, 55KW, 75kw, 90KW, 110KW,132KW
 

Product Structure

Why choose Sanzhi dust special compressor?

The main function of the special low pressure air compressor for dust conveying is to convey dust and cement and some other things, the working pressure is 0.15-0.4Mpa, adopts direct drive, large head, low rotational speed, special oil-air separation structure designed by German technology, low noise, low vibration, no need for any foundation for installation, the fast flow rate of compressed air, compressed air oil content is less than 2PPM, to ensure that the air volume to meet the required requirements. Radiator without after-cooling device, because in the process of conveying, not only cement, including flour, can not have moisture, otherwise it will be coking and caking, seriously affecting the conveying effect.

Sanzhi produces a special low-pressure air compressor for dust conveying, which has a wide range of applications, such as cement, mineral powder, coal ash unloading, textile fermentation, etc. It is highly efficient and energy-saving. For example, it takes at least one and a half hours to unload a 9.6-meter cement tanker by the tanker's own unloading device, which consumes a lot of fuel and is inefficient, but it takes only 40 minutes to unload a 37KW air compressor, which greatly improves the efficiency, saves energy and saves money.
 

Detailed Photos

 

 

 

 

Direct-Connected Rotation Motor
Insulation grade F, protective grade IP55, stable flow rate. Constant load, high efficiency and durability.

German Technology Air End
The air end adopts a large rotor, a low-speed design, high efficiency, low noise, low vibration, high reliability, with less leakage, and high volume efficiency.

Smart Button Screen
The functions are concise and clear, the operation is simple, the response speed is fast, the display color is clear, and it is easy to maintain.

Cooling System
Large heat exchange area design effectively prevents high-temperature machines and reduces oil emulsification and coking caused by high-temperature.

Reliable Oil and Air Separator
Vertical tangential cyclone separation structure, complete separation of oil and air, easy replacement of cartridge, and reduced maintenance cost.

Safe and Zero Leakage Connection
Sanzhi has abandoned the traditional low-cost hydraulic hose design. Sanzhi uses High-rigid pipes and flexible joint connections, avoiding bursts typically caused by aging, rubber type 0-ring offers a flexible seal preventing leakage.

Aluminum Intake Valve
The working principle is loaded with electricity, and unloaded with loss of electricity, with the function of unloading and replenishing air, and the function of eliminating the noise of the host. Stable and durable performance, smooth surface and wear-resistant.

Oil Viewing Mirror
Adopting PMMA material, good transparency, high temperature resistance, and small color change, you can visually observe the oil level change and the use of lubricating oil, timely replacement and adding, to avoid the replacement of untimely damage caused by the equipment.

Excellent Air Filter
An air filter with excellent air purification capability ensures a clean air system and three-stage filtration to maximize air purification and meet standard emissions, it can remove a lot of steam and a small amount of dust gas occasions.

Oil Filter
Filtering impurities in the lubricating oil, so that the head gets better lubrication and prolongs the life of the air compressor.

High-Quality Soundproof Cotton
Compact noise reduction housing, achieving no vibration amplitude during operation, cooperates with high-quality soundproof cotton to further improve noise reduction levels.
 

Product Parameters

 

Model	Power	Pressure	Free air delivery* of unit at working pressure	Voltage	Frequency	Noise Level	Air outlet discharge size	Weight	Dimensions
	KW	Mpa	m³/min	V	Hz	dB(A)	Inch	Kg	L*W*H(mm)
SZ7.5	7.5	0.15-0.4	1.91	380	50	62	G3/4"	300	700*700*1020
SZ11	11	0.15-0.4	2.7	380	50	62	G3/4"	320	700*700*1020
SZ15	15	0.15-0.4	3.2	380	50	63	G1"	530	1250*780*1220
SZ18	18.5	0.15-0.4	4.5	380	50	65	G1"	560	1250*780*1220
SZ22	22	0.15-0.4	5.3	380	50	66	G1"	570	1250*780*1220
SZ30	30	0.15-0.4	7.1	380	50	67	G1½"	740	1500*940*1350
SZ37	37	0.15-0.4	10.0	380	50	68	G1½"	770	1500*940*1350
SZ45	45	0.15-0.4	11.0	380	50	70	G1½"	1060	1800*1100*1600
SZ55	55	0.15-0.4	13.0	380	50	73	G2"/DN50	1250	1800*1100*1600
SZ75	75	0.15-0.4	18.0	380	50	73	G2"/DN50	1480	1900*1200*1700
SZ90	90	0.15-0.4	21.0	380	50	78	DN80	2030	2200*1600*1800
SZ110	110	0.15-0.4	27.0	380	50	78	DN80	2450	2250*1600*1800
SZ132	132	0.15-0.4	32.0	380	50	78	DN80	2550	2300*1700*1900
SZ160	160	0.15-0.4	40.0	380	50	78	DN80	2710	2800*1900*2000
SZ185	185	0.15-0.4	45.0	380	50	78	DN100	3800	2800*1760*1920
SZ200	200	0.15-0.4	48.0	380	50	78	DN100	4100	3300*2200*2000
SZ220	220	0.15-0.4	53.0	380	50	78	DN100	4950	3000*2100*2150
SZ250	250	0.15-0.4	60.0	380	50	78	DN100	5200	3000*2100*2150
SZ315	315	0.15-0.4	75.0	380	50	78	DN100	5650	3500*2250*2150
SZ355	355	0.15-0.4	85.0	380	50	78	DN100	5750	3500*2250*2150
Due to product updates, the above parameters are subject to deviation in kind.

Product Features

Rugged and durable
It can realize 24-hour non-stop operation and start/stop up to 3 million times.

Intelligent control
Safe and reliable electrical system and humanized computer intelligent control.

Easy use
Simple structure, easy to install, operate, and maintain.

Energy saving
The improvement of work efficiency will reduce energy consumption and save 30-50% of costs.

High-temperature shutdown protection
When the operating temperature is too high, it will automatically shut down to protect the equipment from damage and avoid potential safety hazards.

 

Packaging & Shipping

 

Our Advantages

 

1. Price advantage

Direct to provide customers with ex-factory prices, so that customers are more competitive.

2. Direct deal
All products are supplied directly from the factory and we will offer more cost-effective products.

3. OEM & ODM services
The strong production and management capacity of the factory can provide OEM/ODM service for you.

4. Customised service
We accept non-standard orders, export orders, voltage/power/pressure, etc, which can be customized. If you have demands, please contact us.

5. Accept small order
You can place a small trial order first to test the quality of our products.

6. Fast delivery
High-quality products with timely delivery.

7. Complete authorisation
For distributors, we can provide the full authorization certificate to allow you to sell our SANZHI brand products.

 

Certifications

About us

Sanzhi (Henan) Compressor Co., Ltd is a manufacturer in the production of screw air compressors and screw vacuum pumps, with more than 10 years of experience. The extensive product range includes normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, screw air compressors for laser cutting, single-tank mobile screw air compressors, double-tank mobile screw air compressor, electric mobile screw air compressor, diesel mobile screw air compressor, screw vacuum pump, etc.

In production, we are able to achieve the most efficient production by multi-air compressor assembly lines which are lean and modern. With the effort of over 50 employees, we continue to optimize management systems such as ERP to shorten the lead time and deliver qualified products at a fast speed.

In management, our factory passed ISO9001 quality management system certification. We always adhere to the implementation of the stringent quality management system, and strictly implement the standard quality control processes. The outgoing of each machine is an experience of material inspection, production inspection and pre-delivery inspection.

In customer service, on the hand of pre-sales, we offer our customers a professional guide to choosing air equipment for multiple facilities and supply with high customization like its appearance and allocation, and we are even able to create unique products to meet dealer's demand, that is OEM. Meanwhile, for after-sales, we staffed a professional sales & service team for quick response to customers.

We Sanzhi (Henan) Compressor Co., Ltd, devote ourselves to delivering superior and stable products, for building long-term relationships with our customers. Efficient delivery, qualified machine, and worthy price, we are reliable to provide you with a satisfactory compressed air solution.

Our factory is located in Xinzheng City, Henan Province, China. We can pick you up from Xinzheng International Airport to our factory, 30 kilometers in about one hour. Welcome to our company!

 

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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.