HGS-VK05-B Coaxial Venturi Vacuum Generator
The Vacuforce HGS-VK05-B is a compact, compressed-air-powered coaxial venturi vacuum generator from the HGS VK series. It contains a replaceable single-stage coaxial venturi cartridge. The VK body has an overall height of 18.5 mm and is designed for installation near a single suction cup, which can be positioned directly beneath the generator when the compatible cup mount is used.
Published performance: Optimum supply 65.3–79.8 psi (4.5–5.5 bar); maximum vacuum 25.7 inHg (87 kPa vacuum); maximum vacuum flow 0.21–0.28 CFM (6–8 Nl/min); compressed-air consumption 0.41–0.53 CFM (11.5–15 Nl/min).
How the Coaxial Venturi Generator Works
Compressed air passes through the coaxial venturi cartridge, creating a vacuum at the generator port without a motor-driven vacuum pump. By positioning the generator close to the suction cup, the volume of vacuum plumbing can be reduced, which may improve evacuation response on repetitive pick-and-place equipment.
The coaxial cartridge contains the internal air passages used to produce vacuum. The body provides the mounting and connection arrangement, while the cartridge can be removed for servicing rather than replacing the entire generator assembly.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | HGS-VK05-B |
| Product Type | Coaxial venturi vacuum generator |
| Series | HGS VK |
| Cartridge | Single-stage replaceable coaxial cartridge |
| Overall Height | 18.5 mm |
| Vacuum Source | Compressed air |
| Suction Cup Arrangement | Single cup can mount directly below the body with a compatible connection |
| Supplied Mounting | L-type mounting bracket (as listed) |
| HTS Code | 8414.90.9040 |
| Optimal Compressed-Air Supply Pressure | 65.3–79.8 psi (4.5–5.5 bar) |
| Maximum Vacuum | 25.7 inHg (87 kPa vacuum) |
| Maximum Vacuum Flow | 0.21–0.28 CFM (6–8 Nl/min) |
| Compressed-Air Consumption (Air Usage) | 0.41–0.53 CFM (11.5–15 Nl/min) |
Performance values are from the supplied HGS performance table. CFM figures are volume-equivalent conversions of Nl/min at the same reference conditions; they are not independently measured SCFM ratings. Maximum vacuum and maximum vacuum flow are separate performance limits and should not be interpreted as occurring simultaneously.
Single Suction Cup, Inline Installation
The HGS VK generator can be mounted immediately above a single suction cup where the selected cup fitting is compatible. Keeping the vacuum source and cup in line reduces the need for long external vacuum hoses and provides a compact arrangement for robotic end-of-arm tools, transfer equipment and high-cycle handling machines.
Cartridge Maintenance and Replacement
- Switch off, isolate and depressurize the compressed-air supply.
- Remove the exhaust silencer to access the coaxial venturi cartridge.
- Withdraw the cartridge and install the correct replacement cartridge for the specific generator model.
- Check the seals, refit the silencer and verify vacuum operation before returning the equipment to service.
Using the replaceable cartridge design can simplify servicing and reduce the need to replace an otherwise serviceable mounting body. Use the applicable Vacuforce instructions for cartridge selection and reassembly.
Typical Applications
- Single-suction-cup pick-and-place grippers
- Compact robotic end-of-arm tooling
- Decentralized vacuum generation at the point of use
- Automated part transfer and handling systems
Selection note: The performance ratings above are based on the supplied HGS table. Confirm supply pressure, required vacuum flow, suction cup connection and cartridge configuration for the application. Maximum vacuum and maximum flow are separate performance limits.
Frequently Asked Questions
How does the HGS-VK05-B make vacuum?
It uses compressed air passing through a coaxial venturi cartridge to create a vacuum without an electric pump. The vacuum connection can be positioned close to the suction cup on the workpiece.
Can a suction cup be attached directly below the generator?
Yes, the HGS VK arrangement is intended for compact suction cup tooling. With the correct cup fitting, one suction cup can be positioned in line beneath the body, minimizing remote vacuum tubing.
Is the HGS-VK05-B a single-stage vacuum generator?
Yes. The HGS-VK05-B uses a single-stage coaxial venturi cartridge. It is not a two-stage or three-stage generator.
How do I replace the coaxial venturi cartridge?
Isolate and depressurize the compressed-air supply, remove the silencer to access the cartridge, replace the cartridge with the correct approved size/configuration, then refit the silencer. Check seals and confirm operation before returning the machine to service.
Why mount a venturi close to the suction cup?
Reducing the distance between the generator and suction cup can reduce internal vacuum-line volume, improve vacuum response and simplify compact end-of-arm tooling.
What should I check when selecting a generator?
Compare required suction cup size, vacuum flow, leakage, evacuation time, available compressed-air supply, maximum vacuum rating and the space available for the 18.5 mm HGS VK body.
How much compressed air does the HGS-VK05-B consume?
The listed air consumption is 0.41–0.53 CFM (11.5–15 Nl/min) at the optimal supply pressure of 65.3–79.8 psi (4.5–5.5 bar). Use air consumption and expected duty cycle to estimate compressor demand. The maximum vacuum flow of 0.21–0.28 CFM (6–8 Nl/min) describes suction-side capacity, not compressed-air consumption.
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