About Dichtomatik
Dichtomatik Sealing SolutionsFST
Dichtomatik is a sealing products brand of Freudenberg Sealing Technologies (FST), covering an extensive catalog of static and rotational seals built for applications with moderate performance demands. Its portfolio spans O-rings, radial shaft seals, flat gaskets, flange seals, and custom molded rubber and plastic parts, serving industries that need reliable, cost-effective sealing at scale.
The O-ring line is manufactured to DIN ISO 3601-1 industry-class tolerances from elastomer compounds or PTFE, and the broader static-seals range extends to X-rings, cover seals, and bonded seals available in metric, imperial, or custom dimensions. Flat gaskets can be cut to nearly any size or shape from more than 20 stocked sheet materials, including compressed fiber sheet, flexible graphite, nitrile rubber, and PTFE.
Dichtomatik's radial shaft seals and oil seals use a rubber or elastomer sealing lip bonded to a metal outer casing to seal rotating shafts both statically and dynamically, and they're precision molded to current British, European, and ISO standards. Typical applications include drive technology, gearbox construction, electric motors, pumps, agricultural and construction machinery, and wind power equipment.
Flange seals in the range are rated for mounting pressures up to 60 MPa with easy installation and dependable long-term performance, reflecting the brand's position as a value-tier option within the Freudenberg Sealing Technologies group rather than an unproven budget alternative. Backed by a worldwide network of more than 400 seal suppliers, Dichtomatik gives buyers a built-in procurement alternative that helps avoid single-source supply bottlenecks.
Whether you need O-rings, radial shaft seals, flat gaskets, or custom molded parts, ChatMRO helps businesses source the right Dichtomatik products quickly and efficiently. Our team supports RFQ submissions, bulk purchasing requirements, and hard-to-find sealing component sourcing, with real specialists available to confirm material compatibility and dimensional fit before you order.
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Frequently asked questions
How do I choose between an O-ring and a radial shaft seal for my application?
O-rings are static seals used where two surfaces are clamped together with no relative motion, while radial shaft seals (oil seals) are designed for dynamic sealing against a rotating shaft using a flexible lip pressed into a metal casing. If your application involves a spinning shaft, gearbox, or pump drive rather than a bolted joint, a radial shaft seal built to current ISO or DIN standards is almost always the correct choice.
What materials are available for Dichtomatik O-rings and gaskets?
O-rings are produced in elastomer compounds or PTFE to DIN ISO 3601-1 tolerances, while the flat gasket range is cut from more than 20 stocked sheet materials including compressed fiber sheet, flexible graphite, nitrile rubber, and PTFE. The right material depends on the media being sealed, operating temperature, and chemical compatibility, so it's worth confirming these details before ordering.
What pressure and temperature ratings do Dichtomatik flange seals support?
Dichtomatik flange seals are rated for mounting pressures up to 60 MPa and are designed for easy installation with dependable long-term functional reliability. Exact temperature limits vary by the specific sealing material selected, so our team can confirm the rated range against your process conditions before you commit to an order.
Can Dichtomatik supply custom molded seals in nonstandard sizes?
Yes — beyond the catalog range, Dichtomatik offers custom designed and manufactured rubber and plastic parts, including custom O-ring designs in virtually any material, shape, or size. This is useful for legacy equipment, metric-to-imperial conversions, or sealing geometries that don't match a standard catalog dimension.
What industries commonly use Dichtomatik sealing products?
Typical application areas include drive technology, gearbox construction, electric motors, pumps, agricultural and construction machinery, and wind power equipment, with additional use across automotive, industrial, food and beverage, and aerospace markets. Because the brand is backed by a network of 400-plus seal suppliers worldwide, it's also commonly specified as a reliable second-source alternative to avoid single-supplier bottlenecks.