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Monday, 30 April 2012

Jute Carding Machines

























Types of carding machines according to cylinder direction.

1. Up striking: In this card the material moves over the cylinder
2. Down striking: In this card the material moves under the cylinder


Types of carding machines according to path of jute.

1. Half Circular: Here the jute travels half the circle of the cylinder.
2. Full Circular: Here the jute travels the entire circle of the cylinder.


Breaker Card

Principle of Breaker Card:  It is a down striking and half circular carding machine. Its feed is at one side of the machine and delivery is on the opposite side.

Working regions:
  • Combing action occurs between stripper and worker roller.
  • Carding action occurs between cylinder and worker roller.
  • Opening spreading ocurrs between shell and pin feed roller.
Speed of rollers:
Cylinder: 2400 – 2700 feet per minute
Feed roller: 9 – 14 feet per minutes
Worker: 35 – 50 feet per minutes
Stripper: 300 – 500 feet per minutes
Doffer: 75 – 95 feet per minutes
Delivery roller: 150 – 200 feet per minutes



Finisher Card


Principle of Breaker Card:  It is a down striking and full circular carding machine. Its feed and delivery is on the same side of the machine.

Working regions:
  • Combing action occurs between stripper and worker roller.
  • Carding action occurs between cylinder and worker roller.
  • Opening spreading occurs between cylinder and pin feed roller. 
Speed of rollers:
Cylinder: 2400 – 2800 feet per minute
Feed roller: 10 – 15 feet per minutes
Worker: 30 – 40 feet per minutes
Stripper: 300 – 500 feet per minutes
Doffer: 75 – 100 feet per minutes
Delivery roller: 150 – 200 feet per minutes
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