Upcoming events
Kuteno Kunststoff Messe, Gemany — May 14 - 16, 2024
Kuteno Kunststoff Messe, Gemany — May 14 - 16, 2024
PRSE Amsterdam. Netherlands — June 19 - 20, 2024
Kunstoffenbeurs Brabenthallen 2024, Nederland — September 18 - 19, 2024
Kunstoffenbeurs Brabenthallen 2024, Nederland — September 18 - 19, 2024
Kunstoffenbeurs Brabenthallen 2024, Nederland — September 18 - 19, 2024
The K Show at Stand A03 in Hall 10- Dusseldorf, Germany — October 08 - 15, 2025
[ 01 ]
Nitrided cylinders

We supply complete twin counter rotating cylinders. Based on our large experience we can recommend the proper type of solutions to minimize wear.

[ 02 ]
Cylinders lined with Bimetallic liners

We deliver new twincylinders according to OEM’s specification and quality with bimetallic liners with differnt alloy selection.

[ 03 ]
Bimetallic liner (replacement)

For extreme wear we recommend bimetallic liners to be fitted in a outerhousing. In a lot of cases we can upgrade old worn nitrided cylinders and fit bimetallic liners.

[ 04 ]
The advantage of our twin cylinders

Up to date machinery and CAD CAM facilities make it possible to manufacture high quality complex products with tight tolerances with a high surface finish suitable to withstand wear and or corrosion conditions.

Various material options from nitrided till bimetallic liners will improve the life time of the cylinder.

Reduce costs if liners are replaced after first service.

The optimal cylinder-material in combination with screw-materials.

Materials for twin cylinders

Choosing the right cylinder material is important to have the right performance to reduce wear and corrosion.

  • DIN standard
    Material
    Type steel
    Treatment
    Hardness
    Abrasion resistance
    (x good) to (xxxxx excellent)
    Corrosion resistance
    (x good) to (xxxxx excellent)
  • 1.8509
    41CrAIMo7
    Nitriding steel
    Nitrided
    >850 HV 1
    +
    +
  • 1.8550
    34CrAINi7
    Nitriding steel
    Nitrided
    >850 HV 1
    +
    +
1.8509
  • Din standard
    1.8509
  • Material
    41CrAIMo7
  • Type steel
    Nitriding steel
  • Treatment
    Nitrided
  • Hardness
    >850 HV 1
  • Abrasion resistance
    +
  • Corrosion resistance
    +
1.8550
  • Din standard
    1.8550
  • Material
    34CrAINi7
  • Type steel
    Nitriding steel
  • Treatment
    Nitrided
  • Hardness
    >850 HV 1
  • Abrasion resistance
    +
  • Corrosion resistance
    +

Materials for twin cylinders

Choosing the right bimetallic liner material is important to have the right performance to improve wear and corrosion resistance.

  • Type
    Alloy
    Alloy components
    Hardness [HRC]
    (a) Hardness of matrix, tungsten carbides have a hardness of 89 HRC.
    Abrasion resistance
    (x good) to (xxxxx excellent)
    Corrosion resistance
    (x good) to (xxxxx excellent)
  • KB 100
    Fe
    Ni - C - B
    58 - 65
    ++
    +
  • KB 109
    Fe - Cr
    Ni - Mo - Cu - C - B
    58 - 65
    +++
    +++
  • KB 200
    Ni - Co
    Cr - Mo - B
    58 - 65
    +
    ++++
  • KB 300
    Ni
    Cr - Ni - Co - B - W
    58 - 65
    ++++
    ++++
  • KB 350
    Ni
    Cr - Si - B - W
    58 - 65
    +++++
    ++++
KB 100
  • Type
    KB 100
  • Alloy
    Fe
  • Alloy components
    Ni - C - B
  • Hardness [HRC]
    58 - 65
  • Abrasion resistance
    +
    +
  • Corrosion resistance
    +
KB 109
  • Type
    KB 109
  • Alloy
    Fe - Cr
  • Alloy components
    Ni - Mo - Cu - C - B
  • Hardness [HRC]
    58 - 65
  • Abrasion resistance
    +
    +
    +
  • Corrosion resistance
    +
    +
    +
KB 200
  • Type
    KB 200
  • Alloy
    Ni - Co
  • Alloy components
    Cr - Mo - B
  • Hardness [HRC]
    58 - 65
  • Abrasion resistance
    +
  • Corrosion resistance
    +
    +
    +
    +
KB 300
  • Type
    KB 300
  • Alloy
    Ni
  • Alloy components
    Cr - Ni - Co - B - W
  • Hardness [HRC]
    58 - 65
  • Abrasion resistance
    +
    +
    +
    +
  • Corrosion resistance
    +
    +
    +
    +
KB 350
  • Type
    KB 350
  • Alloy
    Ni
  • Alloy components
    Cr - Si - B - W
  • Hardness [HRC]
    58 - 65
  • Abrasion resistance
    +
    +
    +
    +
    +
  • Corrosion resistance
    +
    +
    +
    +

Example twin cylinder

Based on all material and treatment options we selected some examples for twin counterrotating cylinders.

Twin cylinder Nitrided
Details
Twin cylinder Nitrided
Contact us
  • Alloy
    1,8509
  • Alloy components
    Cr AI
  • Hardness [HRC]
    950-1100 Hv (65-67 Hrc)
  • Size [mm]
    Ø90
  • Abrasion resistance
    +
  • Corrosion resistance
    +
Twin cylinder KB100/109
Details
Twin cylinder KB100/109
Contact us
  • Alloy
    KB 109
  • Alloy components
    Ni - Mo - Cu - C - B
  • Hardness [HRC]
    64 - 69
  • Size [mm]
    Ø 75
  • Abrasion resistance
    +
    +
    +
  • Corrosion resistance
    +
    +
    +
Twin cylinder KB300/KB350
Details
Twin cylinder KB300/KB350
Contact us
  • Alloy
    Bimetallic KB 350
  • Alloy components
    Cr - Si - B - W
  • Hardness [HRC]
    60-66
  • Size [mm]
    Ø 115
  • Abrasion resistance
    +
    +
    +
    +
    +
  • Corrosion resistance
    +
    +
    +
    +
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