Pressboard Cylinder Cohesion Machine

Pressboard Cylinder Cohesion Machine for Transformer Insulation Cylinders

The TRANFOVIA Pressboard Cylinder Cohesion Machine is designed for the final bonding stage in transformer insulation cylinder production. After the insulation pressboard has been beveled, rolled into an arc, formed into a cylinder and coated with adhesive, the cylinder is loaded into the machine for controlled heating and hydraulic pressing.

During bonding, the glued joint remains under uniform thermo-compression. This supports consistent cohesion quality for thick pressboard cylinders and shortens the bonding cycle compared with uncontrolled manual pressing methods.

Applications

The Pressboard Cylinder Cohesion Machine is used after pressboard beveling and rolling. It applies controlled heat and hydraulic pressure to the lap joint of the formed insulation cylinder, allowing the bonded area to cure under uniform hot-pressing conditions. This process improves joint consistency, shortens bonding time and prepares the finished pressboard cylinder for subsequent transformer insulation assembly.

Main Components

• Upper pressure roller or upper pressure plate for applying pressure to the bonding area.
• Lower pressure plate for supporting the pressboard cylinder during bonding.
• Hydraulic cylinder and pressing system for controlled compression.
• Machine frame for supporting the heating and pressing assemblies.
• Thermally conductive oil heater for indirect electrical heating.
• Temperature control system for setting and maintaining the bonding temperature.

Main Features

• Uniform thermo-compression maintains heat and pressure at the glued joint throughout the approved cycle.
• Adjustable 20-150 C heating range supports different bonding process requirements.
• +/-2 C temperature control accuracy supports repeatable heating conditions.
• 12 MPa hydraulic pressing provides controlled compression at the bonding area.
• 270-3500 mm diameter and 1500-4000 mm height ranges cover diverse cylinder sizes.
• The standard 150 mm bonding slope width can be customized for the approved joint design.

Technical Parameters

Where the Cohesion Machine Fits in Pressboard Cylinder Production

FAQ

1. What is a Pressboard Cylinder Cohesion Machine used for?

It is used to heat, hydraulically press and bond a glued transformer insulation pressboard cylinder after the pressboard has been beveled and rolled into shape.

2. What cylinder sizes can the machine process?

The standard range covers cylinder diameters from 270 to 3500 mm, heights from 1500 to 4000 mm and pressboard thicknesses from 1 to 8 mm.

3. What heating temperature is available?

The heating temperature is adjustable from 20 to 150 C, with temperature control accuracy of +/-2 C.

4. How is the pressboard cylinder heated?

The system uses electrical heating with thermally conductive oil to transfer heat to the bonding area.

5. What pressure system is used?

The machine uses hydraulic pressing with a system pressure of 12 MPa.

6. Can the bonding slope width be customized?

Yes. The standard bonding slope width is 150 mm and can be customized according to the approved cylinder-joint design.

7. How is this machine different from a Pressboard Cylinder Rolling Machine?

The rolling machine forms flat pressboard into an arc or cylinder. The cohesion machine performs the following process step by heating and pressing the glued joint until bonding is completed.