15-30% Energy-Saving Coupling Driven Two-Stage Compression Rotary Screw Air Compressor (75KW/100HP)

• Customization: Available
• Lubrication Style: Lubricated
• Cooling System: Air Cooling
• Cylinder Position: Vertical
• Structure Type: Closed Type
• Installation Type: Stationary Type
• Type: Twin-Screw Compressor
• Product: Great !!!380V 60Hz 3pH Air Compressor for Automoti
• Function: Air Compressor
• Air Flow Capacity: 0.86-1.23 M3/Min
• Exhause Pressure: 3.5-5bar
• Power: 2.2kw - 630kw
• Control Method: Intelliegent Microcomputer Control System or PLC
• Voltage: 380V-10000V/50Hz-60Hz
• Oil Content: Under 3ppm
• Noise: Under 72dba
• Cooling Type: Wind or Water Cooling Way
• Transport Package: Export Standard Wooden Case, or as Customer Demand
• Specification: 800*760*1102mm
• Trademark: GREAT
• Origin: China
• HS Code: 8414809090
• Production Capacity: 100sets/Month

Product Description

 15-30% Energy-Saving Coupling Driven Two-Stage Compression Rotary Screw Air Compressor (75KW/100HP)
 

1. Company introduces & advtanges of Tianjin Great Air Compressor Manufacturing :
 

Tianjin Great Air compressor Co., ltd, is one leading manufacture and exporter of air compressor in Tianjin, 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  2 stage compression  screw air compressor :







 

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 SKF 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 two point, stepless air capacity control system, time-delay stop and automatically start device three 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 2 stage compression screw air compressor :



The state clearly classifies energy efficiency levels limit value. The 2 class  energy efficiency products can save 10%~15% of the power than 3 class energy efficiency products.and the 1 class energy efficiency products  can save 10%~15% of the power than 2 class energy efficiency products. energy-saving effect is remarkable .

Energy -saving principle :

1. Curve 12 '3' is an isothermal compression process, it form the area of 613 '4 with Y-axis which is the indicated work of isothermal compression
2. Curve 123'' is the 1 stage compression process, it form  the area 613 ''4 with Y-axis which is the indicator work of the 1 stage compression.
3. Curve 12, 22 'and 2' 3 are the 2 stage compression process, and the sum of the area 6125 and the area 52 '34 (6122' 34) with Y-axis which is the indicator work of the 2 stage compression.
4. It can be seen from the diagram that the isothermal compression process 613 '4 area (indicating work) is the smallest, but it is impossible to achieve isothermal compression in the air compressors' actual compression.

The 1 stage compression has the bigger area of power 13 '3 than isothermal compression, while the 2 stage compression saves 22" 33 "area of power.



Features description:

1. Oil injected screw air compressor can achieve the usual power system exhaust pressure by only Single stage compression. But from the view of energy consumption point, the use of 2 stage of compression can effectively reduce energy consumption.
2. So, Tianjin Great air compressor co., LTD. has introduced 2 stage compression of energy efficiency screw air compressor. The 2 stage compressed-jet screw air compressor has more capacity of 12% to 18% than the single stage compressed injection screw  air compressor with the equivalent power. In other words, with the same amount of compressed air, the 2 stage compression can save an average of 15% of power compared with 1 stage compression
3. 2 stage compression of oil injected screw machine has the unique design of the air end, it will combined the1 stage compression rotor and 2 stage compression rotor within a chassis, make each rotor can get optimal linear velocity by the gear directly rotating respectively, so the compression efficiency is higher. 

2 stage compression air compressor, take the built-in spray curtain of cooling, cooling effect is good, greatly reduces the temperature of compressed air, realize the nearly isothermal compression, and can reduce the pressure loss of between 1 class ~ 2 class, lower compression ratio and improve the compression efficiency


 

1. After 1 stage compression, coolant through multiple jet hole on the body, form the mist jet shade, to cool the hot 1 stage compressed air, greatly reduces the compressed air temperature before entering the 2 stage compression, which is near to isothermal compression process, save the energy compression effect.
2. Even without inter-stage cooling, two stage compression is more efficient than single stage compression. This is because the volume of air becomes smaller after the 1 stage compression, so the 2^nd stage compression can use a smaller diameter of the rotor, and the leakage rate of the unit volume is small.
3. Reduce internal leakage: use 2 stage compression, reduce the compression ratio of each compression, reduce the leakage from the high pressure side to the low pressure side per class, and improve the volume efficiency.
4. Noise reduction: the compression ratio of each compression is reduced by taking 2 stage compression, which greatly reduces the noise, especially the unloading noise
5. 2 stage compression unit, except for screw air end, the other system and structure arrangement of the unit is basically the same as the single stage compression, which is convenient for the maintenance and usage to the user.
6. For users  who need  large air consumption and continuously use, should take priority to use of a 2 stage compressed  1 class energy efficiency air compressor

TKL- Series of 1 class energy efficiency air compressor with 2 class,3 class energy efficiency comparation:

	TKL	2 class energy efficiency	3 class energy efficiency
Model	TKL-200-41/8-II	USD-250-8	ML-250
Cooling method	Air cooling	Air cooling	Air cooling
Measured exhaust pressure	7bar	7bar	7bar
Nominal power	200kw	250kw	250kw
Measured input power	225.1kw	256.4kw	297.32kw
Measured exhaust capacity	41.4m³/min	41.9m³/min	42.283m³/min
Measured ratio	5.45kw(m³/min)	6.12 kw(m³/min)	7.037 kw(m³/min)
According to the national GB19153-2009 energy efficiency rating	1 class(1 class<=5.5; 2 class<=6.2;3 class<=7.1)	2 class(1 class<=5.5; 2 class<=6.2;3 class<=7.1)	3 class(1 class<=5.5; 2 class<=6.2;3 class<=7.1)

1. Compared with the 2 class energy efficiency air compressor unit, the electricity saving cost is: Energy saving per hour(6.12-5.45)*41.4=27.738KWH  saving for 8000 hours $27.738*8000*$0.12=$26629
2. Compared with the 3 class energy efficiency air compressor unit, the electricity saving cost is: Energy savings per hour (7.037-5.45)*4.14=65.7018KWH saving for 8000 hours $65.7018 *8000*$0.12=$63074

 

 

Product features:
"GREAT" special project screw air compressor is designed for field operation, which can operate smoothly under the harsh conditions in the wild and ensure the smooth operation of the project. Well adapt to ore docks loading and unloading, steel, electric power, coal mining enterprises, railway, bridge construction, tunnel excavation, ship manufacturing, mining and other field operation and bad environment, with a waterproof, moisture proof, dustproof design, and to consider using in more dust environment, the low temperature environment, vibration environment, especially suitable for air compressor working site space constraints which can't install gas storage environment

Feature description: 

1. 1. Easy to operate, only press the "start " switch;
2. 2. Equipped with the function of remote control to the air compressor, the remote warning contacting  can provide the warning indication of remote fault.
3. 3. The models for outdoor with IP55 standard electrical box, absolutely ensure that the dust does not affect the internal components of the electrical box, unique design of inlet air hole which can natural cool to  the electrical box to ensure electrical life;
4. 4. Specially designed heavy-duty air intake filter designed for dustproof working conditions to ensure that the air compressor host is free of wear and tear;
5. 5. The contactor and thermal relay are selected for the schneider famous brand
6. 6. The overall air intake dust proof and filtering treatment of the box body, insulate the environment dust, avoid the pollution of the internal parts of the air compressor, protect the motor and valve parts, and extend the use life of the intake filter. The special material filter plate , oil and water resistant and high temperature resistant, can be used again and again to reduce the use cost;
7. 7. If the unit has to be installed in the vibration environment, there are anti-vibration units for user selection;
8. 8. In order to solve the problem of oil supply problem when the air compressor is started at low temperature, there are low-temperature units for user selection;
9. 9. Special design of the air compressor can be 0 ~ 100% capacity regulating function, according to the variation of gas consumption automatic voltage stabilizing operation, especially suitable for no tank use, no need consider to start the problem and the frequently load and unload problems

3.Technical Parameters for  GREAT 2 stage compression fixed speed screw air compressor:

Model	Working pressure (Bar)	Flow Air Capacity  (m3/min)	Power (Kw)	Noise (dBa)	Dimensions (mm)	Outlet pipe size	Weight (Kg)
TKL-45F-II	8	9.5	45	68	1800*1500*1510	DN50	2400
	10	8.8
	13	8.1
TKL-55F-II	8	11.5	55	68	1800*1500*1510	DN50	2430
	10	10.9
	13	10.5
TKL-75F-II	8	16.1	75	68	2470*1700*2020	DN65	2700
	10	14.5
	13	12.5
TKL-90F-II	8	19.8	90	68	2470*1700*2020	DN65	2800
	10	16.5
	13	13.5
TKL-110F-II	8	24.0	110	68	2660*1700*2020	DN65	2850
	10	19.8
	13	17.2
TKL-132F-II	8	28.3	132	70	2660*1700*2020	DN65	4150
	10	23.2
	13	19.2
TKL-160F-II	8	33.3	160	72	3460*2040*2200	DN80	5100
	10	28.4
	13	23.6
TKL-185F-II	8	38.5	185	72	3460*2040*2200	DN80	5200
	10	33.3
	13	28.4
TKL-200F-II	8	41.3	200	75	3460*2040*2200	DN80	5250
	10	38.5
	13	33.5
TKL-220F-II	8	45.5	220	75	3720*2220*2200	DN100	6100
	10	40.8
	13	37.6
TKL-250F-II	8	54.7	250	75	3720*2220*2200	DN100	6200

 

4.Application :











6.Certification :



7. Pakcing& shipping :






8. 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!

9. Contact :