Vacuum Couch Roll for Kraft Paper Making Machine

• Customization: Available
• After-sales Service: Warranty
• Warranty: 1 Year
• Model NO.: Sun Hong
• Certification: ISO 9001:2000, ISO 9001:2008
• Surface Treatment: Sand Blast
• Manufacturing Process: Casting
• Material: Stainless Steel
• Condition: New
• Customized: Customized
• Color: Various
• Length: 1600-4800mm
• Thickness: 50-120mm
• Transport Package: Wooden Case
• Specification: made to order
• Trademark: sun hong
• Origin: China
• HS Code: 84399900

Product Description

The Vacuum Couch Roll

Vacuum Couch Roll is one of the main parts for fourdrinier dehydration and transmission of paper machine. The vacuum couch roll is composed of roll body, vacuum box, bearing seat on operation side and transmission side, water spray pipe, air cushion pipe, rubber wheel and vacuum regulating valve.

Characteristics
The roll body is stainless steel, and the diameter, face width, wall thickness, opening rate, opening diameter, etc. depend on the situation.The Vacuum Couch Roll of our company is characterized by effective dehydration ,good chemical resistance and easy to release.

Application
Vacuum couch roll is used in the fourdriner, to effectively reduce water content of wet paper, to improve the wet paper web strength and to decrease the wer paper web breakage rate, which will improve the operation efficiency of paper machine.

Technical paramet

Product name	Vacuum couch roll
Material	SUS304
Color	Various
Temperature	110
Length	1600-4800mm
Diameter	460-1800mm
Loading Capacity	50,000kg
Roll Type	Guider roll, breasting roll, lay on roll etc.
Thickness	50-120mm
Rubber Thickness	25mm

Use and maintenance
Problem:
Due to the impact of materials, the vacuum couch roll often has local scratch problems, such as local damage to the roll surface, scratch on the inner wall of the roll body, wear of air tires at both ends of the roll body, etc; The wear of the transmission part of the roll body is another kind of frequent faults, such as the wear of the bearing position of the vacuum couch roll, the wear of the journal, the damage of the keyway and so on.
Solution:
The traditional solution is mainly repair welding or brush plating, but the thermal stress caused by high temperature during repair welding can not be completely eliminated, and brush plating is easy to peel off due to the limitation of coating thickness. The more advanced way to solve the vacuum couch roll fault is to use polymer composites, in which the mature youmeijiahua technology system is used. Because the material has good adhesion and compressive strength, it can be repaired without disassembly and machining, which is more time-saving and labor-saving than the traditional repair method. At the same time, the oil resistance, corrosion resistance and self-lubricating function of the coating ensure the wear resistance of the repaired roller body and avoid the secondary wear of the roller.

Packaging & Shipping
1. Export packing.(Wooden case, carbon cast and pallet).
2. Container (as customer requirements)
3. It is suitable for long distance ocean transportation.