Liquid Ring Vacuum Pump Vacuum Adsorption

Recently, there are many customers who ask about the application of liquid ring vacuum pump in vacuum adsorption handling. Therefore, the manufacturer of EVP vacuum pump will introduce vacuum adsorption and its application principle. Vacuum adsorption is a simple summary of the use of vacuum pumps or vacuum generators to create pressure differences to achieve adsorption clamping and handling objects.

Vacuum adsorption is a common application of vacuum pumps, such as vacuum handling and CNC machining centers. The main principle is to use the vacuum pump to vacuum at the suction cup to create pressure difference to hold various workpiece objects.

In the application of liquid ring vacuum pump in vacuum adsorption and transportation, how can we know how much adsorption force the vacuum sucker will produce?

The estimation of vacuum adsorption force is mainly based on pressure formula, that is, F = PS. In the application of vacuum adsorption, the calculation method will be adjusted slightly, as follows:

F(101-P absolute pressure)x S sucker area X 10-2

In the formula, F is the absorptive force produced by vacuum sucker in theory, unit: Kgf; P absolute pressure is the absolute vacuum degree achieved in the application of vacuum pump, unit is KPa; 101 is the standard atmospheric pressure value, so it needs to be adjusted according to the situation in some special altitude areas; S sucker area is the effective area of vacuum sucker, unit is KPa. Square centimeter (cm2).

For example, through a vacuum pump, the vacuum suction cup can achieve a vacuum of 10 kPa, so the pressure difference between the vacuum cup and the atmospheric pressure is 101-10=91 kPa. At this time, the effective area of the vacuum suction cup is 10 square centimeters, and then the adsorption force is 91 x 10 x 0.01, that is to say, the vacuum suction cup can theoretically reach about 9.1 Kgf.

The basic principle of the liquid ring vacuum pump for vacuum adsorption is that the suction port of the vacuum suction cup is connected with the vacuum pump or the vacuum generator. After the start of the vacuum pump or vacuum generator, the air inside the suction cup is pumped out to form a vacuum state with pressure of P2. When the pressure of P2 is lower than that of P1, the pressure difference is formed. The workpiece will be absorbed under the pressure difference between the external pressure and the internal vacuum. Once the vacuum is destroyed, the adsorption force will disappear and the workpiece will be separated.

In vacuum adsorption handling, the higher the vacuum degree inside the sucker, the greater the pressure difference, the tighter the sucker and the workpiece are attached to each other; the higher the pumping speed and flow rate between the vacuum pump and the vacuum generator, the easier the vacuum degree inside the sucker will be maintained, and the shorter the reaction time of vacuum adsorption; the larger the contact area between the sucker and the workpiece, the higher the vacuum degree, the greater the adsorption force. In addition, in practical application, the vacuum adsorption capacity is also affected by the structure of vacuum sucker, sucker material, sucker and workpiece surface fit, as well as the direction and speed of workpiece adsorption and transportation.

Vacuum adsorption is commonly used in various industries for the transportation of objects with smooth and impermeable surfaces that are not suitable for clamping, such as electronics, light industry, printing products, as well as the transportation of various forgings, stampings, etc. In life, the most common application is vacuum adsorption hook, so the understanding is relatively simple.

Vacuum adsorption is a very easy-to-master transfer technology. Using vacuum technology to regulate, control and monitor can effectively improve the efficiency of parts and components in automation and semi-automation production. In addition, the liquid-ring vacuum pump for vacuum adsorption has the advantages of cleaning, stable adsorption, reliability and no damage to the surface of the adsorbed objects. Therefore, vacuum adsorption technology has been widely used in various fields, and even the liquid-ring vacuum pump has a relatively outstanding performance in the application of vacuum adsorption and transportation.

Liquid Ring Vacuum Pump Vacuum Adsorption

2BE1 Series Liquid Ring Vacuum Pump

Model Speed(Driving mode) Shaft power Motor power Ultimatevacuum Max. capacity Weight (excl.motor)
r/min KW 380V hpa M³/hr M³/min kg
2BE1-102 1450 (direct)1750 (V-belt) 6.08.0 Y132M-4-7.5Y160M-4-11 33hpa(-0.097MPa) 246290 4.14.8 110
2BE1-103 1450 (direct)1750 (V-belt) 8.211.1 Y160M-4-11Y160L-4-15 33hpa(-0.097MPa) 340412 5.76.9 125
2BE1-152 1450 (direct)1625 (V-belt)

1750 (V-belt)

12.515.0

17.2

Y160L-4-15Y180M-4-18.5

Y180L-4-22

33hpa(-0.097MPa) 450510

535

7.58.5

8.9

175
2BE1-153 1450 (direct)1100 (V-belt)

1300 (V-belt)

1620 (V-belt)

1750 (V-belt)

16.310.6

13.4

19.6

22.3

Y180M-4-18.5Y160L-4-15

Y180M-4-18.5

Y180L-4-22

Y200L-4-30

33hpa(-0.097MPa) 600445

535

648

700

10.07.4

8.9

10.8

11.7

200
2BE1-202 980 (direct)790 (V-belt)

880 (V-belt)

1100 (V-belt)

1170 (V-belt)

1300 (V-belt)

18.213.4

16.3

23.8

25.7

30

Y200L2-6-22Y180M-4-18.5

Y180M-4-18.5

Y200L-4-30

Y200L-4-30

Y225S-4-37

33hpa(-0.097MPa) 750590

670

860

888

950

12.59.8

11.2

14.3

14.8

15.8

460
2BE1-203 980 (direct)790 (V-belt)

880 (V-belt)

1100 (V-belt)

1170 (V-belt)

1300 (V-belt)

29.521.2

24.8

34

38

42

Y250M-6-37Y200L-4-30

Y200L-4-30

Y225M-4-45

Y225M-4-45

Y250M-4-55

33hpa(-0.097MPa) 1080870

980

1210

1320

1390

1814.5

16.3

20.2

22.0

23.2

530
2BE1-252 740 (direct)565 (V-belt)

660 (V-belt)

830 (V-belt)

885 (V-belt)

938 (V-belt)

3823.7

31.8

45

54

60

Y280M-8-45Y200L-4-30

Y225S-4-37

Y250M-4-55

Y280S-4-75

Y280S-4-75

33hpa(-0.097MPa) 17001200

1500

1770

2000

2100

28.320.0

25.0

29.5

33.3

35.0

870
2BE1-253 740 (direct)565 (V-belt)

660 (V-belt)

740 (V-belt)

792 (V-belt)

820 (V-belt)

880 (V-belt)

940 (V-belt)

5437.2

45

50.8

60

68

75.1

88

Y315M-8-75Y225M-4-45

Y250M-4-55

Y280S-4-75

Y280S-4-75

Y280M-4-75

Y280M-4-90

Y315S-4-110

33hpa(-0.097MPa) 24501690

2100

2340

2560

2640

2780

3050

40.828.2

35

39

42.7

44

46.3

50.8

930
2BE1-303 740 (direct)590 (direct)

466 (V-belt)

530 (V-belt)

583 (V-belt)

660 (V-belt)

740 (V-belt)

9865.5

48

58

64

79.8

96

Y315L2-8-110Y315L2-10-75

Y250M-4-55

Y280S-4-75

Y280S-4-75

Y280M-4-90

Y315S-4-110

33hpa(-0.097MPa) 40003200

2520

2820

3100

3550

3840

66.753.3

42

47

51.7

59.2

64

1700
2BE1-305 740 (direct)590 (direct)

490 (V-belt)

530 (V-belt)

583 (V-belt)

660 (V-belt)

740 (V-belt)

10870

55

61

68

90

110

Y355M1-8-132Y355M1-10-90

Y280S-4-75

Y280S-4-75

Y280M-4-90

Y315S-4-110

Y315M-4-132

33hpa(-0.097MPa) 45203750

3150

3380

3700

4090

4550

75.362.5

52.5

56.4

61.2

68.1

75.8

1820
2BE1-353 590 (direct)390 (V-belt)

425 (V-belt)

464 (V-belt)

530 (V-belt)

560 (V-belt)

620 (V-belt)

660 (V-belt)

12163

72

85

95

110

133

152

Y355L2-10-160Y280S-4-75

Y280M-4-90

Y315S-4-110

Y315M-4-110

Y315L1-4-132

Y315L1-4-160

Y315L2-4-185

33hpa(-0.097MPa) 53003580

3700

4100

4620

5000

5500

5850

88.359.7

61.7

68.3

77.0

83.3

91.7

97.5

2300
2BE1-355 590 (direct)390 (V-belt)

420 (V-belt)

464 (V-belt)

523 (V-belt)

590 (V-belt)

660 (V-belt)

13675

80.8

95

113

136

182

Y355L2-10-160Y280M-4-90

Y280-4-90

Y315S-4-110

Y315M-4-132

Y315L1-4-160

Y315L2-4-200

33hpa(-0.097MPa) 57004180

4260

4850

5230

6000

6510

9569.7

71

80.8

87.1

100

108

2450
2BE1-403 330 (V-belt)372 (V-belt)

420 (V-belt)

472 (V-belt)

530 (V-belt)

98110

131

160

213

Y315M-4-132Y315M-4-132

Y315L1-4-160

Y315L2-4-200

Y355M2-4-250

33hpa(-0.097MPa) 48605400 6470

7380

8100

8190

107.8

123.0

135.0

3750
2BE1-405 330 (V-belt)372 (V-belt)

420 (V-belt)

472 (V-belt)

530 (V-belt)

100118

140

170

216

Y315M-4-132Y315L1-4-160

Y315L2-4-185

Y315L2-4-200

Y355M2-4-250

33hpa(-0.097MPa) 60006700

7500

8350

9450

100.0111.7

125.0

139.2

157.5

3900

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