b&m KL PLUG® sealing systems in boreholes of a component – reliable closing systems for secure sealing and closure in industrial applications

Closing and Sealing Systems – Efficient and Reliable Borehole Sealing

Maximum process reliability and time savings: innovative sealing systems for dependable borehole sealing and efficient closing – delivering long-lasting results and reduced costs in industrial applications.

Sealing systems play a critical role in industrial manufacturing when it comes to reliably sealing boreholes. In applications such as engine blocks, transmissions, pumps, or hydraulic systems, boreholes must be permanently closed while being protected against the ingress or leakage of liquids, gases, and external influences. baier & michels’ solutions provide innovative closing systems that offer an efficient and process-reliable alternative to conventional methods such as screw plugs, expanders, or shrink plugs.

Cross-section of a borehole with an installed sealing system – illustration of a closing element within a component for precise sealing and secure closure of boreholes.

Our Solutions in the Field of Sealing Systems

baier & michels offers a comprehensive portfolio of sealing systems and closing systems specifically developed for industrial requirements.

Discover our systems here.

Sealing Systems for Boreholes: Efficient, Safe, and Cost-Effective

Modern sealing systems seal boreholes through targeted expansion within the component, creating a durable, pressure-resistant connection—without the need for threads. This enables fast installation and reduces machining steps. The result: reliable sealing of liquids and gases, lower process costs, and high process reliability. This makes them an efficient and cost-effective alternative to conventional closing systems for sealing boreholes.

Typical Applications of Our Sealing and Closing Systems

  • Automotive industry
  • Mechanical and plant engineering
  • Hydraulic and fluid systems
  • Pump and valve technology
Wherever components come into contact with media, high-performance solutions for borehole sealing are essential.

Sealing system installed in a metal component – precise solution for sealing and securely closing a borehole in industrial applications

The Alternative to Screw Plugs, Expanders, and Shrink Plugs

Traditional solutions such as screw plugs, expanders, or shrink plugs are widely used but often involve significant machining effort due to thread cutting, complex borehole preparation, and additional process steps. Modern sealing systems offer an efficient alternative: they require no threads, can be installed faster, and provide high sealing performance and pressure resistance with reduced effort. This makes them a cost-effective solution for sealing boreholes.

Our Sealing System Solutions

Our in-house developments in sealing systems deliver powerful solutions for efficient borehole sealing and reliable closure in industrial applications.

Closing and sealing system for holes with or without pressure load

b&m-KL PLUG®

Closing and sealing system for holes with or without pressure load

Frequently Asked Questions About Closing and Sealing Systems (FAQ)

Sealing systems are components designed for the permanent sealing and secure closing of boreholes in industrial applications.

Modern sealing systems provide an efficient alternative to conventional screw plugs, as they require less machining and can be installed more quickly.

Expanders and shrink plugs are often used for permanent closures, but compared to modern sealing systems, they are typically more complex to apply.

Sealing is achieved using specially developed sealing systems that are fixed within the borehole through a form-fit or force-fit mechanism, ensuring a high level of sealing performance.

All b&m innovations at a glance

Explore our portfolio and find the ideal solution tailored to your specific application.

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