China Great Air Compressor Manufactory Supply 3-5bar Low Pressure Screw Air Compressor for Glass Factory

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Product Description

GREAT air compressor manufactory supply 3-5bar low pressure screw air compressor for glass factory 

1. Company introduces & advtanges of ZheJiang Great AIr Compressor Manufacturing :

ZheJiang Great Air compressor Co., ltd, is 1 leading manufacture and exporter of air compressor in ZheJiang , China, Founded 1957 years, coving an area of 200000 square meters. Now exporting to more than 120 countries. Has established a huge sales and service network at home and abroad.

GREAT’ s main products range as blow:
-oil-injected rotary screw air compressor(fixed speed, variable speed; medium & low pressure)
-portable rotary screw air compressor(diesel powered, electric motor powered)
– low pressure screw air compressor
– outdoor screw air compressor 
– oil free screw blower(variable speed)
-oil free air compressor( scroll type, dry type, water lubricated type)
-air treatment equipment( air dryer, air tanker, filers etc.)

All of our machines are designed for high realiable performance, easy maintenance, and maximum energy efficiency. 


Our company advantages  1. Over 60 years China professsinal manufacture for air compressor ,An ISO9000 company

2.European standard,China made &factory directly supply 

3. Superior porformance &high efficiency with reasonable price 

4.Low power consumptions for more output

5.Trouble free & cost saving

6.Timely pre-sale and after-sale service 

7.Easy operatation &maintenance  

2. Products introductions &advantages for  low pressure screw air compressor 3.5-5bar :


Our products features 1.Approved by ISO9001/ SGS,/CE etc..

2.Adopt the most advanced technology and world famous brand of twin screw main machine designing and  manufacturing, no leakage, ensure high air discharge and low energy consumption.

3.  Adopt high quality electric motor with CZPT bearing, IP54, convenient maintenance and long use life.

4. Adopt world famous brand of air intake filter, oil filter, air and oil separator, realize high filtration accuracy, compressed air oil content under 3ppm, reach to international advanced standard level. 

5. Equip with the most advanced air control system. Adopt air intake valve, intelligent control system and pressure sensor combined control method, can operate by ON and OFF 2 point, stepless air capacity control system, time-delay stop and automatically start device 3 air capacity control methods, can meet different clients demand.

6.Intelligent microcomputer control system, Chinese and English language operation interface, malfunction display, alarm and machine stop automatically.

7.Adopt high quality and world famous brand of main components, like UK APD oil filter, America AMOT temperature controlling valve, SCHNEIDER electric parts and etc., high efficiency, reliable and long use life.
8. Equip with after air compression cooler combination with the air and water separator, compact structure and save space, avoid leakage and improve the air and water separating efficiency mostly.

Feature  for GREAT low pressure screw air compressor:

1) The exhaust pressure 3.5 ~ 5 bar low pressure screw air compressor products;

2) Regular air compressor running under low pressure, the biggest risk is the big fuel consumption and bad lubrication problem, our company through a specially designed successfully solved this 2 problems.

3) The biggest advantage of a low pressure machine is: on the premise of meet the user’s gas pressure, can with the lowest power consumption to achieve the biggest gas demand, to achieve energy saving!

By following a set of data, you can intuitive understanding that energy-saving features of the unit:

No. Item 8bar machine 6bar machine 3.5bar machine
1 capacity 42.1(actually  test) 43.2(actually  test) 43.5(actually  test)
2 Unit input power 274kw 238kw 187.5kw
3 Power need for compressed each cubic air 6.5KW/m³/min 5.5KW/m³/min 4.3KW/m³/min
4 Electric saving per hour 86.5kw*h 50.5kw*h  
5 Electric saving per 24hours 2076kw*h 1212kw*h  
6 Electric saving cost per 8000 hours USD$83879 USD$48970 Industrial electric cost$0.12/degree

Note: take 40 cubic meter for example, the same air end is tested at the same speed.

From the above table, it can be concluded that the operating 0.35 Mpa pressure gas equipment, and if using the air compressor of  pressure of 0.6-0.8Mpa, the user needs to increase the electricity cost by USD$45000 – $80000 per year. Therefore, in the low pressure gas industry, such as glass industry, textile industry, and foam plastics industry, considering the running cost,we should mainly recommend the low pressure screw air compressor 

3.Technical Parameters for  GREAT low pressure screw air compressor:

Model Type Flow air capacity (m3/min) Working pressure (Bar) Noise (dBa) Power (Kw) Outlet pipe size Dimensions (mm) Weight (Kg)
LG(F)D-90-d LG(F)D-18.7/3.5 25 3.5   90 DN80 2450*1800*1820 3225
LG(F)D-17.9/4.0 24 4
LG(F)D-17.3/4.5 22 4.5
LG(F)D-15.8/5.0 20 5
LG(F)D-110-d LG(F)D-24.1/3.5 30 3.5 78±3 110 DN80 3150*2050*2210 4050
LG(F)D-22.1/4.0 28 4
LG(F)D-21.8/4.5 26 4.5
LG(F)D-20.9/5.0 23 5
LG(F)D-132-d LG(F)D-30.2/3.5 35 3.5   132 DN80 3150*2050*2210 4050
LG(F)D-27.6/4.0 33 4
LG(F)D-25.7/4.5 30 4.5
LG(F)D-24.0/5.0 29 5
LG(F)D-160-d LG(F)D-33.7/3.5 41.7 3.5   160 DN125 3150*2050*2210 5500
LG(F)D-30.5/4.0 38 4
LG(F)D-30.0/4.5 36 4.5
LG(F)D-29.6/5.0 33 5
LG(F)D-185-d LG(F)D-41.0/3.5 46 3.5 80±3 185 DN125 3750*2120*2340 7000
LG(F)D-39.0/4.0 45 4
LG(F)D-36.0/4.5 41 4.5
LG(F)D-35.8/5.0 40 5
LG(F)D-200-d LG(F)D-43.3/3.5 48 3.5   200 DN125 3850*2120*2340 7000
LG(F)D-41.0/4.0 46 4
LG(F)D-40.5/4.5 45 4.5
LG(F)D-38.7/5.0 41 5
LG(F)D-220-d LG(F)D-47.0/3.5 50 3.5 80±3 220 DN150 3850*2120*2340 7000
LG(F)D-43.2/4.0 48 4
LG(F)D-42.5/4.5 46 4.5
LG(F)D-40.4/5.0 45 5


4.Application :

6.Certification :

7. FAQ : 
Q1: Are you factory or trade company?  
A1: We are factory.
Q2: Warranty terms of your machine? 
A2: One year warranty for the machine and technical support according to your needs.
Q3: Will you provide some spare parts of the machines? 
A3: Yes, of course.
Q4: How long will you take to arrange production? 
A4: 380V 50HZ we can delivery the goods within 20 days. Other electricity or other color we will delivery within 30 days.
Q5: Can you accept OEM orders? 
A5: Yes, with professional design team, OEM orders are highly welcome!

8. Contact :

sales engineer  Celia Meng
Website http://greataircompressor


What to Look For When Buying an Air Compressor

An air compressor is a very useful tool that can help you complete many different types of construction jobs. This handy machine makes many tasks much easier, but not all of them are created equally. Understanding what to look for when buying an air compressor will help you make an informed decision. Here are some of the things you should look for. These include price, size, and energy efficiency. Also, make sure to consider the air compressor’s type.

Single-stage air compressors are quieter

When it comes to noise level, single-stage air compressors are the way to go. These machines have fewer moving parts and are quieter than two-stage models. Single-stage air compressors use an axial flow design and can be quieter than their dual-stage counterparts. Single-stage air compressors can run longer and at lower pressures. Single-stage air compressors can be used for light industrial applications. They have a long life expectancy, with some models lasting for over 3 thousand hours.
While some single-stage air compressors are quieter than two-stage air compressors, both models have noise-reduction features. One type features rubber parts, which are designed to dampen noise. Another feature makes a compressor quieter: its location near the job site. Some models feature rubber base plugs and rubber mats to reduce floor vibrations. In addition to using these features, single-stage compressors are easier to transport.
Noise levels are important when choosing an air compressor. Some machines are too noisy for comfortable work, and some businesses don’t want to expose customers to noise-generating air compressors. Other noise levels can even endanger workers’ health. Single-stage air compressors are more affordable than dual-stage compressors. They are also quieter and more powerful. But be prepared for the noise. Some single-stage air compressors are still noisy.
Compared to their two-stage counterparts, single-stage compressors are quieter when running at full capacity. However, double-stage compressors are quieter on low capacities than single-stage units. Those with variable speed are quietest at lower capacities. The difference is about 10db. If you’re concerned about the noise level, you should consider a two-stage air compressor. But if you have a small workshop, it may not be suitable for you.
One-stage air compressors are generally more efficient than two-stage air compressors. The noise from a two-stage air compressor is lower because there’s no intermediate stage. Single-stage air compressors also use a piston that rotates in a single stage, while dual-stage air compressors, also known as duplex models, are more efficient. A single-stage air compressor is quieter, but double-stage compressors are louder.

Two-stage air compressors are more energy efficient

Two-stage air compressors are more energy-efficient than single-stage machines. The efficiency of two-stage air compressors is increased through a combination of improved efficiency and increased longevity. These machines can store more air and have higher compression ratios. One model of a two-stage compressor can hold approximately 83 cubic feet of air at 100 PSI and 120 cubic feet at 150 PSI. A two-stage compressor is also quieter.
Two-stage air compressors are more energy-efficient because they have 2 pistons instead of one. These air compressors achieve a higher pressure rating and recover more quickly. This type of compressor is perfect for jobs that require high air pressure for a prolonged period of time. In addition, they can operate multiple tools simultaneously. This makes them better for commercial and industrial use. Listed below are some benefits of two-stage air compressors.
Single-stage air compressors can power tools in the garage or kitchen, but they are not as reliable for industrial applications. Single-stage compressors have larger parts that tend to experience condensation. Furthermore, single-stage compressors do not last long in continuous use and are less energy-efficient than two-stage ones. Whether you’re using the compressor for a single tradesperson, a small crew, or a large construction crew, two-stage compressors are the best choice.
Single-stage air compressors are often used in small-scale food preparation and production. Single-stage air compressors are easy to transport between locations, and can be plugged into several electrical outlets. Single-stage compressors are also ideal for high-volume food processing. A dual-stage air compressor is ideal for industrial use. In some cases, you can even move the single-stage air compressor between two-stage air compressors.
Single-stage compressors often cycle too quickly, drawing more electricity than two-stage units. A variable speed unit stays on a low speed for hours at a time. Single-stage air conditioners force you to lower your thermostat settings while single-stage air conditioners run too often. Both units are energy-efficient but they are not as energy-efficient as variable-speed compressors. The main difference is that single-stage air conditioners tend to drain the power source quicker.

Piston-driven air compressors are quieter

A piston-driven air compressor is 1 of the quietest types of air compressors. It is less noisy than reciprocating air compressors. A piston-driven air compressor can reach 62 decibels, while a scroll compressor is around half that volume. The 2 main components of a scroll air compressor are the piston and the helical screw. These air compressors are both very efficient and quiet.
Older compressors are incredibly noisy. They produce a “wumpa” noise similar to a large engine. They are also capable of producing a high-pitched whine. These noises can be deafening, especially in a small workshop. That’s why it’s essential to look for a quiet compressor. But what makes a compressor quiet? Read on to learn more about this essential tool.
Another difference between piston-driven air compressors and electric-driven air compressors is the power source. Electric air compressors produce less noise than gas-powered compressors, which use an engine. Piston-driven air compressors are also more efficient. They also generate less heat, making them an ideal choice for offices and other settings where noise is a problem. The best way to decide between the 2 types of air compressors is to check the manufacturer’s warranty and read the ‘Description’.
Noise reduction is the first priority of a compressor’s owner, so make sure that you have the right model. If you’re working on something sensitive, don’t place the compressor too close to a building where people might be nearby. Noise can be very disruptive to the workspace and can cause health problems. To help combat noise, you’ll need to buy a quiet air compressor. And don’t forget to consider its location: Piston-driven air compressors are quieter than their reciprocating counterparts.
Piston-driven air compressors are quiet because the piston is made of thin metal and more rubber, which absorbs the sound. Unlike reciprocating air compressors, piston-driven air compressors are more efficient than their dual-piston cousins, which are quieter and more powerful. So which type is right for you? Take a look at some of the main differences between the two. If you want a quiet compressor, make sure it meets the specifications required by the job you’re working on.

Oil-lubricated air compressors are more cost-effective

There are several reasons why oil-lubricated air compressors are more expensive than dry-type air compressors. First of all, oil-lubricated air compressors tend to be more reliable and quiet. Additionally, oil-lubricated air compressors require fewer parts and can last longer than dry-type air compressors. These are just a few of the many benefits of using oil-lubricated air compressors.
Oil-free air compressors have some disadvantages. They are less durable and may not be as efficient as oil-lubricated models. Additionally, because oil-lubricated air compressors use oil, they can get very noisy. While they are less expensive, they are not the best option for heavy-duty work. However, modern oil-free air compressors have soundproofing and are suitable for industrial use.
When purchasing an oil-lubricated air compressor, make sure to choose 1 with a tank capacity that meets your needs and your space. Larger tanks can be more expensive than small tanks, but larger units are easier to move around. Also, be sure to consider the weight and size of the portable air compressors when making your choice. If the weight is too large, you may have trouble carrying it from place to place.
Another benefit of using oil-lubricated air compressors is their reduced need for oil. These models can last up to a decade longer than oil-free counterparts. Oil-free air compressors are more affordable and can achieve the same high performance as their oil-lubricated counterparts. Many industrial applications benefit from these air compressors. So, which 1 is right for you? We’ve listed a few of them below.
Another benefit of choosing an oil-lubricated air compressor is the reduced cost of maintenance. This type is more durable than its oil-lubricated counterparts, which require regular oil changes to keep them running smoothly. However, it is not feasible to transport an oil-lubricated compressor, which means that you must install it permanently to keep it working efficiently. In addition, these air compressors are difficult to move and are not portable, which can limit your ability to use it in a pinch.

China Great Air Compressor Manufactory Supply 3-5bar Low Pressure Screw Air Compressor for Glass Factory  China Great Air Compressor Manufactory Supply 3-5bar Low Pressure Screw Air Compressor for Glass Factory

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