GA5575产品演示

Noise level 67-69 dB(A)
Noise level:
50 Hz
60 Hz
7,5 10 13 100 125 150 175
GA 55 67 67 67 67 67 67 67
GA 75 69 69 69 69 69 69 69
Average noise levels acc. PN8CPT2, tolerance 2dB
noise levels
Noise level
Vibration dampers • on screw element • on oil separator vessel
Noise level
Additional low noise items • Extra noise baffling in front and around the motor
Improved customer satisfaction
GA 55-75 Upgrade
G 2 1/2"
Outlet connection of FF by-pass standardised on G 2 1/2"
More easy installation
GA 55-75: FF by-pass
• radial type fan • extra large dimensions • low speeds (6 pole motor)
Laminar, high volume, low speed cooling air flow providing high cooling efficiency at extremely low
Noise level
Top-technology vibro-acoustic geometry optimisation by Finite Element Method (FEM) of gearbox & coupling housing
Noise level
Low noise cooling fan design
GA 55-75 Upgrade
Further improvements: • Re - lay - outing of the electrical cubicle • Standardised FF-by-pass connection
GA 55-75 Upgrade
Re-lay-outing of elec. cubicle: improved perception
Former standard: Cagi-Pneurop
• Measurement:
• sound pressure level on 4 sides at 1m distance and 1,5m height
• Result:
• logarithmic average of 4 measurements plus the highest figure as a fifth measurement; tolerance +/- 3 dB
GA 55-75 Upgrade:
Full range of optional equipment (1)
• Modulating control • Energy recovery • Electronic drain • OSD 90 • FF transformer • ID bypass • ID - kits • Oil containing frame
Noise level: PN8CPT2
Actual standard: PN8CPT2
• Measurement:
• unit divided in sub-area’s • sound power scanning-measurement on each area
• Result:
• calculation of average sound pressure level over parallelepiped at 1m distance from unit; tolerance 2dB
75
75
74
13
73
67 -6
-
75
74
75 kW 7,5
77
69 -8
76
75 82
74
70(77)
10
76
69 -7
76
75 82
74
70(77)
13
76
69 -7
-
75 82
74
70(77)
GA 55-75: Noise level ranking
GA 55 GA 75
50 Hz 7,5 10 13 111 111
GA 55-75 Upgrade
• Super Silenced Version • High Efficiency GA75-7.5-50
GA 55-75 Silenced version
GA 55-75 Silenced version
Outside dimensions: unchanged
GA 55-75 / 50Hz : Noise level
Noise level
Atlas Copco
ቤተ መጻሕፍቲ ባይዱ
Ingersoll Kaeser
De ma g
dB(A)
actual new diff. Rand
CS DS Rallye Regatta
55 kW 7,5
75
67 -8
75
75
74
10
74
67 -7
60 Hz 100 125 150 175
1111 1111
Noise level
Reducing noise and vibration at the source: • Gearbox & coupling hsg • Cooling fan • Vibration dampers • Additional items
GA 55-75 Upgrade
GA 55-75 Design Objectives
Bring the noise level in line with the new products and improve the efficiency on GA75-7.5bar variant... to achieve further sustainable...
GA 55-75 Upgrade: