Freudenberg Sealing Technologies Heavy Industry Pulp Paper
Freudenberg Sealing Technologies Pulp Paper

Heavy Industry

Pulp & Paper

Need for speed

Sealing solutions for the pulp and paper industry

High functionality thanks to superior material quality: Seals from Freudenberg Sealing Technologies even withstand extremely high speeds and severe temperature fluctuations. For customers in the pulp and paper industry, this means that they can "drive" their machines faster and thus manufacture much more economically. Excellent seal effectiveness prevents leaks and the resulting machine breakdowns – reliably and lastingly. Costly downtime is eliminated. Service and repair expenses are also noticeably reduced.


Merkel Radiamatic

FST Radiamatic

In the pulp and paper industry, Merkel Radiamatic-Brand Shaft Seal Rings are used in the shaft feedthroughs of large bearings. Circumferential grooves allow extra lubrication from the outside without added complex fixtures. An especially robust clamping part, continual radial contact pressure and highly wear resistant seal lips offer the desired strong sealing effect and longevity.

There are also ingenious design features:

For example, a metallic support allows higher working pressures. Overpressure requires the use of endless seals. That is why Freudenberg Sealing Technologies provides support ring drawings as well as installation instructions and tools for open seals in service situations. This means seals can be fitted on site without the costly, complete dismantling of equipment.

Relevant products and applications in this market segment

FST Dynamische Dichtungen Dynamic Seals
Select

Dynamic Seals

Portfolio Freudenberg Sealing Technologies

Führungen

Guide Rings

Guide Rings have the task of guiding the rods and pistons of pneumatic and hydraulic cylinders and preventing direct metallic contact with the cylinder housing.

Dynamic Seals

Radiamatics

The requirements are high. Freedom from leakage is not only a "must" for drive shafts in shipping. Cleanliness is also of utmost importance in the paper industry with its high-speed rolls.

Dynamic Seals

Rod Seals

Rod Seals are primarily used in pneumatic and hydraulic cylinders and have the task of sealing the incoming and outgoing cylinder rod.

Dynamic Seals

V-Ring Seals and Deflectors

V-Ring Seals and Deflectors must withstand a great deal. So Freudenberg Sealing Technologies had to come up with something special to meet heavy industry's often high expectations in this area.

FST Dynamische Dichtungen Dynamic Seals Kolbendichtungen Piston Seals

Piston Seals

Piston Seals in pneumatic and hydraulic cylinders have the task of sealing the piston against the cylinder tube.

Dynamic Seals

Wipers

Wipers in pneumatic and hydraulic cylinders protect the interior of the cylinder from the penetration of external contaminants when the rod is retracted.

FST Static Seals Statische Dichtungen
Select

Static Seals

Portfolio Freudenberg Sealing Technologies

FST Static Seals Statische Dichtungen O-Ringe O-rings

O-Rings

Endless O-Rings with a circular cross-section: O-Rings are among the sealing classics par excellence.

FST Deckeldichtungen Cover Seals

Cover Seals

Even if machine elements under pressure are firmly bolted to one another, there is still a so-called static seal gap that must be sealed.

FST Hydrospeicher hydraulic accumulators
Select

Hydraulic Accumulators

Portfolio Freudenberg Sealing Technologies

FST Hydrospeicher hydraulic accumulators

Hydraulic Accumulators

Hydraulic Accumulators are a basic component of hydraulic systems. They support hydraulic functions in a broad range of applications: from construction machinery all the way to the auto industry.

FST Special Seals Spezialdichtungen
Select

Special sealing products

Portfolio Freudenberg Sealing Technologies

FST Precision Molded Parts

Precision Molded Parts

Precision Molded Parts consist wholly of elastomer materials and offer high precision, tight dimensional tolerances and high surface quality.

FST Special Seals Spezialdichtungen Stopfbuchspackungen Stuffing Box Packings

Stuffing Box Packings

So-called Stuffing Box Packings have been tried-and-tested for extremely high temperatures and chemical resistance in pump and valve applications.

FST Applications

Winding

Various rollers

FST Applications

Smoothing/calendering

Rollers, hydraulic cylinders

FST Applications

Press section

Rollers, shoe press rolls, gears, hydraulic cylinders

FST Applications

Moving screen

Rollers, gears, vacuum pumps, hydraulic cylinders

FST Applications

Flow boxes

Centrifugal pumps

FST Applications

Stock chest

Mixers, gears, centrifugal pumps

FST Applications

Coating section

Rollers, hydraulic cylinders

FST Applications

Dryer section

Rollers, vacuum cylinders