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Yankee Dryer Cylinder

All LEIZHAN dryer cylinders, heads and journals are made of special cast iron. Separate journals are bolted onto the dryer heads. Dryer shells are ground on the outside and turned on the inside. All dryer journals with steam or condensate pipes have insulation sleeves. The inner surfaces have grooves for the stationary siphons. The front side ends of all dryers contain manholes.
  • Customized

  • LEIZHAN

  • LZ-31

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Product Description

All LEIZHAN dryer cylinders, heads and journals are made of special cast iron. Separate journals are bolted onto the dryer heads. Dryer shells are ground on the outside and turned on the inside. All dryer journals with steam or condensate pipes have insulation sleeves. The inner surfaces have grooves for the stationary siphons. The front side ends of all dryers contain manholes.


Cast iron material are excellent in durability. This is because the free form flake graphite in the cast iron material ensured its high corrosion and erosion resistance. The cast iron also has good fatigue strength under the pressure roller forces. At the same time, cast iron itself has a good surface performance, does not need metal spraying treatment like steel dryer.


Cast iron dryer cylinder diameter up to 3680mm, width up to 12000mm.Body material is HT250-HT350, the grade of ductile iron is QT400-QT600, the hardness is up to HB190-280.
 

Diameter

Material

Design Pressure MPa

Hardness HB

Face Length mm

Working Speed m/min

Roughness
(Ra)

1500

HT250-HT350

0.3-1.1

190-240

1450-10000

500-1200

0.1-0.4

1800

HT250-HT350

0.3-1.1

190-240

1450-10000

500-1200

0.1-0.4

2000

HT250-HT350

0.3-1.1

190-240

1450-8000

500-1200

0.1-0.4

2500

HT250-HT350

0.3-1.1

220-260

1450-8000

500-1200

0.1-0.4

3000

HT350

0.3-1.1

230-260

1450-8000

500-1200

0.1-0.4

3660

HT350

0.3-1.1

230-260

1450-8000

500-1200

0.1-0.4

3800

HT350

0.3-1.1

230-260

1450-8000

500-1200

0.1-0.4


Steel dryer cylinder diameter up to 7500mm, width up to 6500mm.Body material is carbon steel.Working pressure above 1.0MPa.
 

Diameter

Φ3000

Φ3660

Φ3963

Φ4270

Φ4572

Φ4877

Φ5486

Φ6096

Φ6706

Φ7315

Max Linner Pressure KN/m

120

120

120

120

120

120

120

120

170

170

Max Steam Pressure MPa

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Max Paper Width mm

5600

5600

5600

5600

5600

5600

5600

5600

5600

5600

Design Speed
m/min

1200

1500

2200

2200

2200

2200

2200

2200

2200

2200



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