Internal O-Ring Installation Machine Series

Assembling internal O-rings can be a complex process, often more challenging than handling external ones. With nearly 40 years of experience, we offer a range of internal O-ring assembly machines designed to simplify this task. Explore various options with all levels of automation to find the perfect solution for your production needs.

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O-Ring Installation Machines for Internal O-Rings & Other Seals

  • All levels of automation
  • Different levels of integration
  • Feeding, assembly & testing
  • Proven systems from the world leader in seal assembly

Internal Seal-Ring Machines with Manual Feeding

Experience the simplicity of internal O-ring assembly with our manual feeding machines—the perfect introduction to automatic seal and O-ring installation. Manually load the seal and product into the machine, and complete the assembly with a single button press in under one second. This efficient solution streamlines the complex process of internal O-ring assembly, helping you enhance productivity with ease.

OI 10

Simply brilliant – secure assembly of internal O-rings and seal rings.

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Internal Seal-Ring Machines with Semi-Automatic Feeding

Our semi-automatic machines provide efficient automation for seal feeding and assembly processes. They feature automated sorting and feeding of O-rings and seals, with manual intervention required only for loading and unloading the products. This setup simplifies the assembly of internal O-rings.

OI 10 – 250/400

A brilliant idea and automated – semi-automatic system for assembling internal O-rings.

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Special Solutions – Semi-Automatic

Tailored special solutions – also available as semi-automated systems for larger batch sizes.

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Internal Seal-Ring Machines with Fully-Automatic Load

Rotary Indexing Machine

Seals and Beyond – Compact Solutions for Assembling Multiple Components.

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Complex, Interlinked Systems

Our highest level of automation – multiple processes integrated into a single system alongside seal assembly.

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Robotics

Need even more flexibility? Robotic automation adapts to your requirements.

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Integration Modules for Internal O-Rings

Our integration modules allow machine manufacturers and industrial automation providers to integrate world class seal assembly technology into their solutions.

OI 100

Premier discipline – reliable assembly of complex, deep-seated internal seals.

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OA/OI Stations

Proven stations for assembling internal and external seals beyond the standard modular system.

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Installation of Internal O-Rings

Positioning

Internal O-rings are placed inside a component, such as within a bore, groove, or cavity that requires sealing.

Compression

The O-ring needs to be compressed appropriately to fit into the internal space without deforming or causing damage. It’s important to ensure the O-ring maintains its shape for an effective seal.

Protection from Twisting

Care must be taken to prevent the O-ring from twisting or rolling during installation, which can compromise its sealing ability. Gentle and even pressure should be applied.

Avoiding Damage from Sharp Edges

Ensure that the O-ring does not come into contact with sharp edges or threads during installation, as this could cause cuts or tears.

Installation

Finally the O-ring is guided into position as smoothly as possible.

Internal vs. External O-Ring Assembly

In some cases, internal O-rings are required—for example in pistons, valves, or housings. Compared to external O-rings, they are significantly more difficult to assemble because installation points are less accessible and often located deeper inside the component. This creates challenges such as higher risk of misalignment, O-ring damage during insertion, or inconsistent cycle times in automated production.

Despite their complexity, internal O-rings are essential wherever sealing must occur inside a component. Reliable automation therefore requires specialized assembly systems that can position O-rings precisely, control insertion forces, and ensure repeatable quality even in hard-to-reach geometries.

Our internal O-ring assembly machines are designed to meet these requirements, making automated assembly of internal seals both practical and reliable.

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External O-Ring Installation Machine Series

External? Internal? We’ve got you covered!

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We Are Happy to Advise You

Are you looking for a solution for the installation of seals? Contact us, we will be happy to advise you:

  • Assembly task (internal or external seal)
  • Components
  • Seal specification (material, cross-section, dimensions)
  • Production volume or cycle time
  • Desired level of automation (manual, semi-automatic, fully automatic)
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