Large seals

DMH brand large seals

Large seals are particularly challenging from a technological perspective. We produce large seals with diameters of up to 2,500 millimeters – and are continuously working to expand dimensions and possibilities through the ongoing development of technology and processes.

Interesting facts

01
Fact #1
DMH brand products are available in polyurethane, elastomers, PTFE, and thermoplastic materials.
02
Fact #2
The DMH brand product range includes customized solutions that meet your individual requirements.
03
Fact #3
In-house semi-finished product manufacturing and an extensive range of stock items ensure short delivery times.

Why large seals?

DMH brand large seals are very popular in maintenance, i.e., servicing and repairs. Small batch sizes and fast availability are crucial here. However, DMH brand seals are also frequently used in long-term projects. When trust, continuity, adherence to deadlines, and sufficient capacity for high quantities up to large series are required, the DMH brand is the first choice. In view of increasing process optimizations, longer system runtimes, and simultaneously rising energy, material, and raw material costs, it contributes significantly to sustainability. The products make it possible to optimize running times, minimize downtime, reduce maintenance costs, and prevent harm to people and nature.

Where are large seals used?

As machines become larger, DMH brand large seals meet extremely demanding and constantly growing requirements. Challenging applications require special high-performance plastics with increased wear resistance.

Our large seals are used, for example:

In power plants (hydropower/turbines)
In wind turbines
In mining and tunnel construction
In hydraulic presses
In pipelines
In shipping

Welded large seals

Polyurethane solutions with diameters greater than 2,500 millimeters are large welded seals, which we can usually supply in diameters up to 10,000 millimeters. These large seals are used in systems that do not allow endless assembly. They are therefore welded on site at the customer's premises. The material-locking welding process makes it possible to achieve the desired outer diameter and the required performance. Thanks to optimized processes, Freudenberg Sealing Technologies also offers fast delivery times for welded large seals. Comprehensive consulting is a matter of course, and customer training specifically for this process is available.

Available in:

DMH100 HPU
DMH170 SL-PU
DMH110 HPU 55D

Vulcanized seals

Certain applications in the largest dimensions require elastomers as a material. That is why Freudenberg Sealing Technologies also offers standard and special profiles made of nitrile rubber (NBR) with a hardness of 85 Shore A (up to 10,000 millimeters in diameter) on request.

Available in:

DMH300 NBR 85

Trust through quality.

Freudenberg Sealing Technologies stands for decades of experience in sealing technology. Fast processing times, comprehensive on-site consultations, and customized solutions tailored to customer needs ensure the satisfaction of our long-standing customers.

DMH 2500

For seals with a turning diameter of up to 2,500 millimeters.

The DMH 2500 sets new standards and pushes the boundaries of what is possible: produce your seals with a turning diameter of 600 to 2,500 millimeters! Our latest machine takes the "maximum size" factor to a whole new level and impresses with maximum precision down to the smallest detail. The material is clamped vertically. This enables a particularly stable and space-saving design.

To DMH 2500

Your contact for
large seals

Markus Puntel

Department Manager Seals

T +43 3833 20060 - 230 E markus.puntel@dmh.at Contact via e-mail

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