Logo, Miller & Company - Steel Pipe

(203) 855-7535
42-50 S Main Street, Suite 305
Norwalk, CT 06854
Eisenbau-Krämer

Eisenbau-Krämer  
Large Diameter Steel Pipes/Shells 

EBK longitudinally welded (saw) pipes/shells used as components in paper machines and other machinery

Running machines efficiently is based on components that guarantee high performance. EBK pipes/shells have state-of-the-art tolerance levels, which help you in achieving this goal.

EBK Pipes/Shells are used in

Paper machines as:

  • Felt rolls
  • Wire rolls
  • Press rolls
  • Dryers
  • Reel spools
  • Winder drums

Other machinery/general engineering as:

  • Hydraulic cylinders
  • Cable drums
  • Yarn rollers
  • Rolls for weaving machinery
  • Dryer rolls

Pressure vessels as:

  • Cans
EBK Pipes/Shells
Bending to the latest technical standard

Bending to the latest technical standard

Our 6,200 ton press at work

  • Max. pipe/shell length: 13400mm (527.5")
  • Wall Thickness: up to 77mm (3.03")
  • Min. pipe/shell diameter: 406.4mm (16")
  • Max. pipe/shell diameter: 1.524mm (60")
[ Press Steps ]


Production steps of our 6,200 ton press

Heat Treatment

  • Stress relieving
  • Annealing
  • Normalizing
Heat Treatment
Three roll bending machine
Three roll bending machine1 Three roll bending machine2 Three roll bending machine3
  • Wall thickness: up to 250mm (8.66")
  • Min. I.D.: 1,000 mm (39.37")
  • Max. O.D.: 4,000 mm (157.48")

Machining

  • Pipes/shells with close tolerances, no additional machining
  • Pipes/shells machined; O.D. and I.D. either rough or finish turned
  • Other machining (i.e. counterbore, etc.) per customers' specifications

Size Range

  • Diameter:
    500mm - 4,000mm
    (19.68" - 157.48")
  • Wall thickness:
    20 - 250mm
    (.787" - 8.66")
  • Length:
    2.000mm - 13,400mm
    (78.74" - 527.55")
  • Other dimensions per request:

O.D. machining/turning

  • O.D. dimensions:
    min. 500 mm
    max. 2,050 mm
    length max. 12,500
  • Tolerance:
    ISO 286 max IT 6
    according to shell diameter
  • Surface Finish:
    Standard
    Ra 3.2 µm - 12.5 µm
    Special
    Ra 0.8 µm - 1.6 µm

Machining
I.D. Machining

I.D. Machining

Dimensions:

  • O.D. Shells:
    min. 500 mm
    max. 2,050 mm
  • I.D. Boring Size
    min. 370 mm
    max. 1,800 mm
  • Boring Length:
    max. 14,000 mm

Tolerances

  • Standard
    Concentricity max. 0.5 mm
    Diameter of bore +/- 0.5 mm
  • Special:
    Concentricity max. 0.3 mm
    Diameter of bore +/- 0.25 mm

Surface Finish

  • Standard
    Ra 12.5 µm
    RMS 500 µ"
  • Special
    Ra 1.6 µm
    RMS 70 µ"