70% 300l/min Multi-stage Vacuum Generator

This vacuum generator (also known as vacuum ejector) is designed to generate a vacuum level that is required for pick and place applications of objects and works based on the Venturi effect. The compressed air pressure range is 1 to 7 bar (14.5 to 101.5 psi), but the optimal pressure is 6 bar (87 psi). At this pressure, the maximum vacuum level is 70% and the air consumption is 85 l/min (5.1 m³/h, 2.98 scfm). The vacuum rate decreases with increasing vacuum levels and is maximally 300 l/min (18 m³/h, 10.5 scfm). The evacuation time 1 l to 70% vacuum is 1.2 s. Please see our datasheet for more details about suction rates and evacuation times.

This vacuum ejector has three connection ports: a G 1/4 inch supply port, a G 3/4 inch vacuum port and a G 3/4 inch exhaust port. It’s made from aluminum. Suitable for a temperature range of -10 °C to 100 °C (14 °F to 212 °F).

Pros:

• Multi-stage ejectors create a much higher suction rate than singlestage with the same amount of compressed air
• Suited for porous materials or large volumes thanks to high suction rate

Cons:

• Silencer not included (recommended)

VEL-M series

The VEL-M series generators are multi-stage vacuum ejectors. The ejectors from this series can a generate vacuum of up to 90%. Depending on the vacuum level, the vacuum rate varies from 28 to 9600 l/min (1.68 to 576 m³/h), 0.98-336 scfm and the evacuation time ranges from 0.044-18 s. The air consumption range is from 16 to 2880 l/min (0.96-172.8 m³/h, 0.56-6.05 scfm). They have three ports one for air supply, second for suction and third for exhaust. A wide range of port sizes is available.

Specifications

Connection size : 1/4 inch,3/4 inch
Material : Aluminum
Max vacuum (%) : 70
Seal material : CR (neoprene)
Air consumption (l/min) : 85
Max vacuum flow rate (l/min) : 300
Total length (mm) : 182
Evacuation time 1 liter @ 50% (s) : 0.43
Max evacuation time (s) : 1.2
Max pressure (bar) : 7
Min pressure (bar) : 1
Optimum pressure (bar) : 6
Connection type : Inner thread cylindrical BSPP-G
Max temperature (°C) : 100
Min temperature (°C) : -10