2023 7.5A High Efficiency 7.5HP VFD Oil Injected Screw Air Compressor

Short Description:

5-in-1 Oil-free Water Lubricant Screw Air Compressor
● 5-in-1
● 45℃ Isothermal compression
● Self-made OFAC air end, single screw
● I4 motor, IP55
● Air cooled & water cooled
● 0 Emission
● TUV certificated, 100% oil-free
● VSD & PMVSD
● Direct driven

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Product Detail

Product parameters

TECHNICAL DATA----OIL INJECTED SERIES
Model	Power		Pressure (bar)	Air Flow (m3/min)	Noise Level dBA	Outlet Pipe Diameter	Dimension LxWxH (mm)
BO-7.5	7.5kw	10hp	7	1.2	66±2	G 1/2"	800700930
			8	1.1
			10	0.95
			12	1.8
BO-11	11kw	15hp	7	1.65	68±2	G 3/4"	9507501250
			8	1.5
			10	1.3
			12	1.1
BO-15	15kw	20hp	7	2.5
			8	2.3
			10	2.1
			12	1.9
BO-18.5D	18.5kw	25hp	7	3.2		G 1"	13808501160
			8	3
			10	2.7
			12	2.4
BO-22D	22kw	30hp	7	3.8
			8	3.6
			10	3.2
			12	2.7
BO-30D	30kw	40hp	7	5.3
			8	5
			10	4.5
			12	4
BO-37D	37kw	50hp	7	6.8		G 1-1/2"	150010001330
			8	6.2
			10	5.6
			12	5
BO-45D	45kw	60hp	7	7.4	72±2
			8	7
			10	6.2
			12	5.6
BO-55D	55kw	75hp	7	10		G 2"	190012501570
			8	9.6
			10	8.5
			12	7.6
BO-75D	75kw	100hp	7	13.4
			8	12.6
			10	11.2
			12	10
BO-90D	90kw	125hp	7	16.2
			8	15
			10	13.8
			12	12.3
BO-110D	110kw	150hp	7	21		G 2-1/2"	250014701840
			8	19.8
			10	17.4
			12	14.8
BO-132D	132kw	175hp	7	24.5	75±2
			8	23.2
			10	20.5
			12	17.4
BO-160D	160kw	220hp	7	28.7
			8	27.6
			10	24.6
			12	21.5
BO-185D	185kw	250hp	7	32		DN85	315019802150
			8	30.4
			10	27.4
			12	24.8
BO-220D	220kw	300hp	7	36	82±2
			8	34.3
			10	30.2
			12	27.7
BO-250D	250kw	350hp	7	42
			8	40.5
			10	38.2
			12	34.5
BO-315D	315kw	430hp	7	51
			8	50.2
			10	44.5
			12	39.5
BO-355D	355kw	480hp	7	64	84±2	DN100
			8	61
			10	56.5
			12	49
BO-400D	400kw	545hp	7	71.2
			8	68.1
			10	62.8
			12	62.2

F-- air cooling method S-- water cooling method

Product Introduction

* High speed, high effiency, high reliability
* More than 35 years' manufacturing experience
* Delivery as quick as 1 day

* IP23/54/55 available
* OEM support
* One-stop service

Why choose OFAC oil-free screw air compressor

1. Mitsui technology, can replace Mitsui air end 1:1.
2. Highest ultra precision air end manufacturer in China, failure rate nearly 0.
3. Comes with 3-stage purifier, tap water(daily used water) is workable.
4. Easiest maintenance, 0 Emission.
5. simple structure, easy to use.
6. with 485 remote switch.

The difference between oil-free and oil lubricated

The difference between oil-free and oil lubricated is more than the presence or absence of oil: the oil-lubricated air compressor requires the change of the oil every now and then; besides it also requires air filtration to remove the oil. For this reason, the oil lubricated air compressor requires more maintenance work than the water lubricated oil-free screw air compressor.

However, compared with the oil lubricated air compressor, this water lubricated oil-free screw air compressor is much louder in operation. In one word, a water lubricated oil-free screw air compressor is better for the industries that require high purity air; and the oil lubricated screw air compressor is more suitable for the industries that require more operational continuity.
Oil-free screw air compressor are widely used in industries that require high quality air sources, such as pharmaceutical, food, electronics, chemical, packaging, etc. 100% pure compressed air is a necessary procedure to guarantee satisfactory crafts and product quality, which ensures the production of high-end products safely and risk-free.

Oil-free water-lubricated air compressors are generally screw-type air compressors, mainly using water as lubricant to perform . During the working process, the lubrication, sealing and cooling of the entire main machine are all done by water.

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The brand “BOBAIR, specializes in the R&D, manufacturing, sales and service of compressors, oil-free compressors and air end, special gas compressors, various air compressors and post-processing equipment, providing customers with High-quality, environmentally friendly and efficient air system solutions and fast and stable technical services.

Why Choose BOBAIR Oil-free Screw Air Compressor

Jiangxi Bobai has launched a completely new range of high efficiency, oil-free two-stage rotary screw compressors to further enhance its successful. These high output oil-free machines now cover a wide flow range from 6.0 to 40.0m3/min, the pressure range from 20bar to 40bar.

High-pressure compressed air is used for blowing bottles.
The pressure depends on the container’s design, wall thickness, blow speed, and so on. The bottles with thick walls, sharp edges, and special shapes need higher pressure. Generally, the stretch blow molding requires about 10~25bar for pre-blowing and about 40bar for the bottle-blowing process. The trend for PET bottle-blowing machines is to reduce the blow pressure as much as possible for energy saving.
The bottles should be cleaned with compressed air before filling the water, beverage, cooking oil and so on.
If the air is contaminated, it will influence the flavor and odor, causing health problems.

For screw type, the air is compressed to 7~8bar at the first screw compression stage, there is no need to cool and the air goes into the second stage screw air end, finally achieving 30~40bar air discharge directly without cooling. Rotation speed 3000r/min, zero loads. About 50℃, no heat waste, Ideal isothermal compression.