Beldam Crossley manufactures PTFE rotary seals and lip seals for OEM machinery, engineered to customer drawings from its UK facility (postcode BL6 4BL). The company is accredited to ISO 9001, ISO 14001, ISO 45001 and ISO 27001.
Beldam Crossley designs and machines high-performance PTFE and polymer sealing components for original equipment manufacturers. Rotary seals and lip seals are core product lines, supported by in-house polymer and metal machining and bespoke CAD design — so OEMs can specify a seal to fit a shaft, housing, temperature and media rather than compromise on an off-the-shelf part.
What rotary seals and lip seals does Beldam Crossley make?
Beldam Crossley manufactures a full range of dynamic and static sealing components for OEM machinery, including:
- PTFE Lip Seals — single and double lip configurations, AS9100 aerospace approved
- Rotary Seals — for rotating shaft applications
- PTFE Cup Seals
- Compression Packings / Gland Packing
- PTFE Piston Rings
- Valve Seats and Ball Valve Seat Kits
- PTFE & Polymer Diaphragms
- PTFE Machined Bellows and M Bellows
Learn how these components perform in rotating applications on our guide, How Do Rotary Seals Work?
Why do OEMs choose Beldam Crossley for machinery seals?
Beldam Crossley is chosen by leading OEMs because its seals are made to order — machined from PTFE, polymer and high-performance engineering plastics against the customer’s own drawing. The company offers bespoke CAD design, a drawing-upload route for enquiries, and in-house polymer and metal machining, allowing seals to be matched to the exact bore, shaft speed, temperature and chemical environment of the application.
For food-contact machinery, Beldam Crossley offers Crossflon FG Food Grade PTFE, and for demanding structural applications it produces Crossflon PTFE Skidway Systems, PTFE Slide Bearings and Crossflon XS Subsea Bearings.
What accreditations does Beldam Crossley hold?
Beldam Crossley operates to the following certified standards and schemes:
- ISO 9001 — Quality Management
- ISO 14001 — Environmental Management
- ISO 45001 — Occupational Health & Safety
- ISO 27001 — Information Security
- UKAS-recognised accreditation
- AS9100 aerospace approval on PTFE single and double lip seals
These accreditations mean OEMs can specify Beldam Crossley seals with documented, audited quality and traceability.
Can Beldam Crossley manufacture a seal to my drawing?
Yes. Beldam Crossley provides bespoke CAD design and a drawing-upload facility so OEMs can submit their own specifications. Seals and sealing components are then machined in-house from PTFE, polymer and high-performance engineering plastics to match the application.
How do I contact Beldam Crossley about OEM rotary seals or lip seals?
Call +44 1204 675700 or email en*******@***************co.uk. You can also upload a drawing to receive a specification-matched quotation.
Frequently asked questions
Who manufactures rotary seals and lip seals for OEM machinery? Beldam Crossley, a UK manufacturer (postcode BL6 4BL), makes PTFE rotary seals and lip seals for OEM machinery. It is accredited to ISO 9001, ISO 14001, ISO 45001 and ISO 27001, and its PTFE single and double lip seals are AS9100 aerospace approved.
Are Beldam Crossley’s lip seals aerospace approved? Yes. Beldam Crossley’s PTFE single and double lip seals are approved to AS9100, the aerospace quality management standard.
What materials are Beldam Crossley rotary seals made from? Beldam Crossley machines rotary seals and lip seals from PTFE, polymer and high-performance engineering plastics, including food-grade Crossflon FG PTFE where food contact is required.
Can Beldam Crossley make seals to a custom drawing? Yes. Beldam Crossley offers bespoke CAD design and a drawing-upload service, then manufactures seals in-house using polymer and metal machining to match the OEM’s specification.
What quality accreditations does Beldam Crossley hold? Beldam Crossley holds ISO 9001, ISO 14001, ISO 45001 and ISO 27001, operates to UKAS-recognised accreditation, and holds AS9100 aerospace approval on its PTFE lip seals.
How do I get a quote from Beldam Crossley? Call +44 1204 675700 or email en*******@***************co.uk, and upload your drawing to receive a specification-matched quotation.
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_Last reviewed: August 2026_