Rolls for Paper Machines

Exactly designed and manufactured according to individual wishes.
Premium quality from Germany, built for the highest demands on reliability, robustness and durability.
This creates security for your production process, because everything has to work smoothly.
Best service - fast, comprehensive and uncomplicated

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Suction rolls for every application / Suction roll shells

Special area: Suction rolls and suction roll coverings, individually manufactured for every installation situation. The most important components of modern, complex production systems for paper, cardboard and films are also suction rolls / suction roll shells and function rolls. The various suction rolls are independent, very effective dewatering elements for all paper machines for increasing the dry content of the paper web and for increasing the strength.

Precision at a glance: Suction rolls and Suction roll shells

Our scope of delivery

  • Suction breast rolls
  • Suction forming rolls
  • Suction couch rolls
  • Pick-up suction rolls
  • Central suction press rolls 
  • Suction felt rolls
  • Suction press rolls
  • Guide rolls in dry section
  • Transport suction rolls for film fixing up to  2500 m/min and 12 m wire width
  • Suction roll shells made of first-class Duplex stainless steels, gun-drilled in tried and tested MWN-quality

Dimensions: Diameters up to 2.200 mm

Face length up to 12000 mm

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Spreader Rolls

Spreader Rolls

The use of Robec spreader-rolls solves a variety of process-related problems in all areas of the production and processing of web-shaped structures.

Basically three types of spreader rolls are produced. A wide range of equipment options enable the wide use of the Robec spreader rolls:

Rubber rolls

Typ R                         Dry application, Pope-reel, Slitter rewinder,
                                  Winders, Calender, Printing unit

Typ R-NL                   Humid application / wet application, before and after           
                                   size press, between dryer cylinders,  in coating plants

Typ R-NLS                 Wet application, in Wire, Felts,  Fabric

Steel rolls

Typ RST                     Dry application , Unwinder and Rewinder,    
                                   Slitter winder (Nonwoven/Textile)

Typ RST-CH               Dry application, Pope-reels, Slitter rewinder,
                                   Winders, Calender, Printing unit

Typ RST-CH-FL          Humid application, before and after size press,
                                    between dryer cylinders,  in coating plants

Typ RST-CH-FLS         Humid application, before and after size press,
                                     between dryer cylinders,  in coating plants

Stainless steel rolls

 Typ RST-E-CH            Dry application, Pope-reels, Slitter rewinder,
                                    Winders, Calender, Printing unit

Typ RST-E-CH-FLS      Humid application, before and after size press,
                                     between dryer cylinders,  in coating plants

Typ RST-E-CH-NDLS   Wet application, in Wire, Felts,  Fabric

Design CH  means a possible option of the surface coating and can differ depending on the single application.

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Rolls and Roller Systems

The product range includes: Rolls, Cylinders, Drums and similar Large turning parts in a wide dimensional spectrum, which allows the production of such components for paper machines of any size:

maximum length                   15.000 mm
maximum diameter                5.500 mm
maximum weight                       100 t

KRAFFT acts as an independent supplier of complete rolling systems, i.e. the rollers can be supplied complete with a desired surface coating (E.g., rubber, PU coating, chromium plating, etc.) and including bearings or similar accessories.

Also Tambours are one of the main products of KRAFFT

 

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Corrugating Rolls of all brands and profiles, modules, rolls, spare parts

Corrugating Rolls of all brands and profiles, modules, rolls, spare parts

Corrugating rolls  - FGM Gradert – for corrugating board machines of all
brands, i.e. new production or Refurbihing of the corrugating roll. 
The profile diversity ranges from the profiles A, B, C, D, E, F, G, K to N,
the fine and finest profiles with the recommended bone profile.

Basis of the corrugated rolls are high-quality, heat-resistant
steel alloys, which are deep-hardened by means of ring induction.
The basic hardness of at least 62 HRC achieved in this case is reduced

The heating of the rollers to operating temperature to a permanent
Hardness of at least 58 HRC, which also after regeneration of the
Profile and regrinding remain.

Basis of the corrugated rolls are high-quality, heat-resistant steel alloys,
which are deep-hardened by means of ring induction. The achieved basic
hardness of at least 62 HRC will lead - after heating of the rolls to
operating temperature - to a permanent hardness of at least 58 HRC,
which also remains after regeneration of the profile and regrinding.

The computerized hardness method is applied to the Steel alloys
and the different profile heights.

As surface coatings we offer hard chrome (SRS, Super Resistant Surface)
in layer thicknesses of 50 to 200 μm according to profile-oriented
final grinding or Tungsten carbide (TCC, Tungsten carbide coating)
in one layer thickness of 50 μm with grinding and polishing.
Both surface coatings guarantee high running performance of the corrugated rolls.