Shaft and rod seals
Low-pressure seals on rotating or sliding shafts.
Gaskets and seals · Lip seals
Lip seals.
A lip seal works by flexing against a moving surface. The quality of that lip — its thickness, angle and edge — decides whether it seals, wears or drags.
The detail
The lip is the product
Unlike a static gasket, a lip seal is doing work all the time: wiping a shaft, sealing a plunger, excluding dust from a slide. Small variations in the lip change friction and sealing performance.
We keep parting lines and flash well away from the sealing edge, control hardness batch by batch, and inspect the lip itself rather than just overall size.
Where it fits
Typical lip seals
Plunger and syringe seals
Seals on pistons in dispensing and medical devices.
Wiper and dust seals
Lips that keep grit out of moving mechanisms.
How we run it
How we make them
Lip design review
Interference, lip angle and material hardness checked together.
Tooling with a clean lip
Parting line placed away from the working edge; LSR where lip quality is critical.
Lip inspection
The sealing edge inspected under magnification.
Functional check
Friction or leak checks where agreed.
To quote it
To quote it
The seal and its housing
Including the moving surface finish.
Speed and pressure
Roughly how fast it moves and what it seals against.
Lubrication and media
Grease, oil, water, air or a product.
Life expectation
Cycles or years before replacement.
Questions
What people usually ask.
Is silicone good for dynamic seals?
For low-pressure, low-speed and wide temperature applications, yes. For abrasive or high-pressure duty, other rubbers are often better; we'll say so.
Can you reverse-engineer a worn seal?
We can work from a sample, though a worn lip hides the original geometry. A drawing or unused part is better.
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Back to the overviewDesigned and developed in the UK. UK moulding capability, with some higher-volume production placed with trusted partners where that's the right commercial answer.
Get in touch
Tell us the part, the volume, and the timeline.
Rough annual volume, target unit price, and any deadlines. That's enough to work out whether compression, LSR injection or something else is the right tool.
Real people, a real workshop
You deal with the people who make it.
No call centre and no middlemen. When you contact TCI Products, you speak to the team who design, build and check your mould.
- A real Warwickshire workshopUnit 15, Waterloo Park, Bidford-on-Avon, Alcester B50 4JG.
- Real people on the phoneCall the team on 01789 224228, Monday to Friday.
- The same team on every jobDesign, production and aftercare come from the people you see here.
- Part of TCI GroupFive specialist brands, one engineering team. Visit TCI Group.
Thomas LaneManaging Director
George PrestonDesign & Project Manager
Kelly BallingerHead of Partnerships
Jim AndertonProduction Manager
TheodoreEmployee Welfare