
Seal it. Cap it. Spigot it. Charge it.
Silicone dust caps provide the answer to achieving dust-tight containment during processing. Hanningfield’s range of Uni-Caps have proven highly successful in providing many of our customers with an ideal solution for the transfer of powders, protecting both the operators and the process environment. Hanningfield Uni-Caps are easy to clean and are available in a range of sizes.
This month, Hanningfield officially launched a brand new range of fully transparent dust caps.
The Uni-Cap+ range offers an enhanced design and excellent visibility combined with the stringent standards our customers have come to expect from Hanningfield products.
The platinum-cured silicone is compliant to FDA 177.2600 and is USP Class VI. The silicone is TSE/BSE free, ADI free and phthalates free. The range is made in GB and the manufacture batch ID can be embossed onto the silicone cap for traceability.






The Uni-Cap+ is currently available in the following sizes:
- 150mm (to fit 6″ Tri-Clamp ferrule)
- 200mm (to fit 8” Tri-Clamp ferrule)
- 305mm (to fit typical 305mm IBC manway)
- 460mm (to fit typical 460mm IBC manway)
We also supply the stainless steel mounting rings in corresponding sizes to complement our new range of transparent silicone dust caps.
Our Uni-Caps can be easily fitted or retro-fitted to any process. As with all our dust caps, cutting a hole in the centre creates a dust-tight seal can be made with the penetrating spigot. This enables the contained charging of mills, tablet presses, vessels, drums / IBCs etc.
Get in Touch
If you would like to speak to one of our experts regarding our Transparent Silicone Dust Caps or would like a quote on one of our products, Send us a message using our Contact Form or call us on +44 (0)1702 549 777.
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