7.5 kW liquid-ring vs regenerative vacuum (AG-VACUUM/LR/75T vs AG-VACUUM/RB)

• Source-Date (SAST): 2023-07-28 14:24
• Dest: public
• Review-after: 2027-02-28
• Status: current

Facts

• AG-VACUUM/LR/75T: 380 V 7.5 kW liquid-ring, ~1440 rpm, about 0.097 MPa vacuum, 10 L/min fluid / 4.66 m³/min air, ~69 dB, needs water. High vacuum, low airflow. For flat/thick stock and MDF spoilboard; table seal matters — leaks kill vacuum.
• AG-VACUUM/RB: 380 V 7.5 kW 16 A regenerative blower ~550 m³/h, 56 kPa, silencer + relief valve, no water. High airflow; as vacuum it yanks air through a porous or drilled spoilboard. Best for thin floppy sheets (plastic under ~6 mm). Also used to blow air.
• Both 7.5 kW pumps are very noisy (even with silencer).
• Sales steer: thin floppy plastic sheet → regenerative; everything else → liquid ring.