Vulcanized fiber composite fiberglass tube combines a vulcanized fiber inner tube with a filament-wound glass-fiber and epoxy outer layer. It is designed for electrical protection parts that need a machinable inner surface and a stronger composite shell. The construction, winding angle, resin system and final dimensions should be selected from the customer’s drawing and test requirements. As a direct manufacturer and supplier, we provide Vulcanized Fibre Composite Fiberglass Tube in made-to-drawing sizes with low minimum order quantities and fast sampling for both prototype and production runs.
Why use a vulcanized fiber composite fiberglass tube?
The fiber core supports electrical insulation and arc-related applications. The fiberglass/epoxy layer adds structural support and allows the tube to be designed around the required outside diameter, wall build-up and handling loads. This construction is commonly considered for high-voltage drop-out fuse boxes, fuse cutout components, sleeves and other power-protection assemblies.
Construction and available options
| Item | Options or current product information |
|---|---|
| Inner layer | Vulcanized fiber tube; inner colors listed as red and gray |
| Outer layer | Glass-fiber reinforcement with epoxy resin; red, yellow, white, green and gray listed |
| Surface | An anti-UV coating is described in the existing product data; confirm coating specification and test method |
| Machining | Sawing, cutting, boring and wire tying can be reviewed against the drawing |
| Customization | Layer build-up, inside/outside diameter, length, color and machining features |
| Quality review | Samples and drawing-based inspection should be agreed before production |
Applications and design checks
Before selecting the tube, confirm the fuse box or equipment type, voltage class, creepage and clearance, arc exposure, temperature cycle, moisture condition, required concentricity and machining tolerances. Ask for the applicable dielectric, mechanical and arc-related test methods. A composite tube should not be approved by color or appearance alone.
- Inside diameter, outside diameter, total wall thickness and cut length
- Core-to-shell interface requirements and permitted layer variation
- Machined holes, slots, threads, shoulders or wire-tie features
- Surface coating, inspection documents and sample approval criteria
- Annual quantity, packaging and traceability requirements
For a single-material core tube, compare the vulcanized fiber tube. For a filament-wound epoxy design without a vulcanized fiber core, see the filament wound tube. To request a sample or quotation, use the contact page.
Download the product brochure
The brochure provides the existing product reference. Please send the approved drawing and required tests so the engineering team can confirm the construction before production.
Explore the full range
This construction sits in our composite fuse tube range and in the wider fuse tubes selection guide. Related composite constructions: vulcanized fiber epoxy canvas tube, ceramic wound fiberglass tube.
Frequently asked questions
What is a vulcanized fibre composite fiberglass tube?
It combines a vulcanized fibre core with a fiberglass overwrap, giving the machinability of vulcan fibre plus the strength and arc performance of fiberglass.
How do I choose between this and plain vulcanized fiber tube?
Choose the composite when the design needs higher arc handling or mechanical load while keeping a machinable inner bore.
Making vulcanized fibre composite fiberglass tube in one plant
This tube is a two-stage part: the vulcanized fibre core is formed first, then glass fiber and epoxy are wound over it. Split those stages between suppliers and concentricity and wall thickness are the first things to drift. Both stages run on one site here, so the bore stays true to the core while overwrap thickness is held to the drawing rather than to a catalogue range.
- Direct factory price across both stages, fibre core and wound overwrap, with no reseller layer
- Trial quantities accepted while the core-to-overwrap thickness split is being decided
- Bore concentricity and overwrap wall held to your drawing
- ISO 9001 control across fibre forming, winding and cure
- SGS testing available on the finished composite
- RoHS and REACH statements on request
Vulcanized fibre composite tube: order and quality questions
Can you make a small batch of vulcanized fibre composite fiberglass tube?
Yes. Prototype and trial quantities are accepted, which matters because the wall split between fibre core and overwrap is usually still being optimised at that point.
What quality paperwork comes with the composite tube?
The plant holds an ISO 9001 quality system and SGS material testing can be requested for the finished composite. RoHS and REACH documents are provided on request for incoming inspection.
How quickly will I hear back on a composite tube enquiry?
A technical review of your drawing is returned within one working day. The formal quotation is issued once core grade, overwrap thickness and quantity are settled.
Request a quote
Send the drawing with core grade, overwrap thickness, bore and outside diameter, plus the arc and mechanical duty. We review machinability and winding feasibility before production starts.