Insulating Kraft Paper Sleeves
Insulating kraft paper sleeves are convolute-wound paper tubes used as lightweight electrical insulation, winding supports and internal fuse components. The paper grade, adhesive, wall build and moisture control should be selected for the finished assembly rather than from dimensions alone.
Specification points
| Item | Confirm for quotation |
|---|---|
| Paper system | Kraft paper grade, density, adhesive or impregnation requirements |
| Dimensions | ID, OD, wall thickness, length, roundness and tolerances |
| Electrical duty | Voltage, dielectric test method, creepage distance and assembly location |
| Environment | Operating temperature, humidity, oil exposure and storage conditions |
| Finishing | Cut edges, slots, holes, printing, coating and cleanliness requirements |
Typical applications
- Fuse-link internal insulation and support sleeves
- Transformer and coil winding supports
- Motor, solenoid and electrical assembly insulation
- Custom lightweight paper tubes made to drawing
RFQ checklist
Send the drawing or sample, paper specification, ID, OD, length, tolerances, adhesive or impregnation requirement, voltage and temperature conditions, quantity, packaging and inspection criteria. For moisture-sensitive applications, include storage and maximum moisture-content requirements.
For rigid glass-reinforced insulation, compare our G5/G9 glass melamine tube and filament wound tube.
Brochure and video
Download the insulating kraft paper sleeves brochure. Treat brochure values as reference data and confirm current specifications with the approved drawing.
Frequently asked questions
What are insulating kraft paper sleeves used for?
They are paper-based insulating sleeves for motor, rocket and electrical applications where a light, formable insulating layer is needed.
Can kraft paper sleeves be supplied to custom sizes?
Yes. Inside diameter, wall and length can be produced to drawing, and the sleeves can be combined with other insulating materials where required.
Request a quote
Send your drawing, voltage class, dimensions and quantity. Engineering review covers electrical, arc, moisture and mechanical requirements before production.