Overview and Key Specifications
The Festo VN-05-H-T3-PQ2-VQ2-RO1-F1A (part number 8187682) is a compact T-shaped vacuum generator engineered for reliable vacuum generation in automated handling systems. Its standard high-vacuum ejector characteristics make it suitable for applications requiring consistent suction performance. The unit features a Laval nozzle with a nominal width of 0.45 mm and a grid dimension of 14 mm, contributing to its space-saving footprint. With a product weight of just 24 g, it can be easily integrated into end-of-arm tooling or stationary fixtures without adding significant mass.
The generator operates within a supply pressure range of 1 to 8 bar, with a nominal operating pressure of 6 bar. At this nominal pressure, it achieves a maximum vacuum of 88% and a maximum suction rate of 6.2 l/min (referenced to atmosphere). The operating pressure for maximum vacuum is 4.5 bar, while the pressure for maximum suction rate is 2.1 bar. These parameters allow engineers to fine-tune the ejector for specific cycle times and holding force requirements.
Design and Integration Flexibility
The VN-05-H-T3-PQ2-VQ2-RO1-F1A is designed with an open silencer (muffler) that reduces exhaust noise to 53 dB(A) at nominal operating pressure, which is beneficial for worker comfort in production areas. The muffler is integrated into the pneumatic connection 3, and the unit is available with an open pneumatic muffler function. The ejector can be mounted in any orientation, offering flexibility for tight spaces or unusual machine layouts. Mounting options include through-hole or with accessories, and the maximum tightening torque is 0.5 Nm, ensuring secure installation without over-stressing the polymer housing.
Pneumatic connections are QS-6 for both supply (connection 1) and vacuum (connection), which are compatible with standard 6 mm push-in fittings. The T-shape structural design simplifies plumbing and allows for neat routing of tubing. The housing is made of reinforced POM, while the jet nozzle is wrought aluminum alloy, and seals are NBR. These materials are RoHS-compliant and suitable for low corrosion environments (CRC 1).
Performance and Operating Conditions
This ejector is intended for use with compressed air per ISO 8573-1:2010 [7:4:4] and cannot be operated with oil-lubricated air. The medium temperature range is 0°C to 60°C, and the ambient temperature range is identical, making it suitable for typical indoor industrial environments. The air supply time at nominal operating pressure is 4.8 seconds, which indicates the time to reach maximum vacuum in a given volume; this is a critical factor when calculating cycle times for vacuum pick-and-place applications.
The unit's high vacuum characteristics are suited for holding porous or leaky workpieces, such as cardboard boxes or foam, where a deep vacuum is required despite leakage. The maximum vacuum of 88% is relatively high, providing strong holding force for smooth, non-porous items as well.
Materials and Compliance Considerations
For industries with strict cleanliness requirements, the VN-05-H-T3-PQ2-VQ2-RO1-F1A conforms to VDMA24364-B1/B2-L (LABS/PWIS), which is important for paint shops or pre-paint processes. Additionally, the product is suitable for Li-ion battery production, with the caveat that metals containing more than 1% copper, zinc, or nickel by mass are excluded, except for nickel in steel, chemically nickel-plated surfaces, circuit boards, cables, connectors, and coils. This makes the ejector a viable option for battery manufacturing equipment where contamination control is critical.
The materials used in the wetted and structural parts are selected for durability and compatibility with standard compressed air systems. The female nozzle and connecting threads are POM, and the muffler is PE, all of which contribute to the unit's low weight and corrosion resistance.
Selection and Application Guidance
When selecting this ejector, engineers should consider the required vacuum level, suction rate, and available supply pressure. The VN-05-H-T3-PQ2-VQ2-RO1-F1A is best suited for small to medium-sized vacuum grippers or for applications with moderate leakage. Its compact size and low weight make it ideal for multi-point gripping systems where several ejectors are used in parallel. The open silencer design reduces noise, but it also means that exhaust air is released directly to atmosphere; ensure that the environment is free of particulates that could clog the muffler.
For integration, the any-position mounting and through-hole option simplify mechanical design. The QS-6 fittings allow quick connection to 6 mm tubing, and the unit's low tightening torque prevents damage to the POM threads. Always verify that the operating medium is dry and free of oil, as oil lubrication is not permitted.