Extrusion Tips and Dies
Extrusion tips and dies shape the insulation or jacket around the conductor on wire and cable extrusion lines. Relink.Tools supplies compatible tips and dies matched to your crosshead model.
Extrusion tips and dies shape the insulation or jacket around the conductor on a wire and cable line: the tip guides the conductor into the crosshead, and the die sets the outside diameter. We supply them as compatible tooling for the crosshead you already run.
Overview
Overview
Matched to your crosshead
A tip and die only fit the crosshead they were made for: the outside shape, the seat and the thread follow the crosshead, and the bores follow the cable. Send three things together: the crosshead make and model, a drawing or a used tip and die with the part you need marked, and whether you run pressure or tubing tooling. With those we quote the set in one go, without a round of questions back to the plant.
Steel tooling, carbide or diamond inserts
Tips and dies are supplied in tool steel, and tips can carry a tungsten carbide or diamond insert at the bore. The choice follows the compound, the conductor size and the line speed. Tell us those and we propose the material.
Before it reaches the crosshead, the conductor is drawn to size through drawing dies — see Wire Drawing Dies. For what each stage needs, see Wire and cable: tooling by stage.
Product Series
Extrusion Guides & Dies
Description:
Guides (tips) and dies for cable extrusion, in steel, carbide or diamond.
Applications:
Insulation and jacketing of wire and cable in PVC, PE, PU and rubber compounds.
Key Features:
Matched to your crosshead model, drawing or used sample.
Diamond-Tipped Guides
Description:
Guides with a diamond insert (PCD or natural) at the bore.
Applications:
Wire and cable insulation lines.
Key Features:
Made to your crosshead and conductor size.
Breaker Plates
Description:
Hardened steel breaker plates for extrusion lines.
Applications:
Wire and cable extrusion lines.
Key Features:
Supplied on request, to your drawing.
Nitrogen Injectors
Description:
Diamond-tipped nozzles for nitrogen injection in extrusion crossheads.
Applications:
Cable lines that inject gas at the crosshead.
Key Features:
Supplied on request, to your crosshead.
Extrusion Tool Cleaning Device
Description:
Cleaning device for extrusion tooling, using an alumina fluidised bath.
Applications:
Cleaning tips, dies and other extrusion tools.
Key Features:
Supplied on request.
Custom-Made Extrusion Tools
Description:
Tips, dies and guides made to your drawing for special cables and profile shapes.
Applications:
Special cables and profiles.
Key Features:
Made to drawing or sample.
Specifications
What we supply
| Item | Details |
|---|---|
| Tooling | Extrusion tips (guider tips) and dies |
| Methods | Pressure, semi-pressure and tubing tooling |
| Materials | Tool steel; tips with tungsten carbide or diamond (PCD or natural) inserts |
| Fit | To your crosshead make and model, drawing or used sample |
| Compounds | PVC, PE, PU, rubber and other insulation and jacket compounds |
| Supplied as | Tips, dies or matched sets |
What to send for a quote
- Crosshead make and model
- Drawing of the tip and die, or a used set, with the part you need marked
- Pressure, semi-pressure or tubing tooling
- Conductor: solid, stranded or cabled, and its diameter
- Finished diameter over the insulation or jacket, and the compound
- On the drawing: bores, taper angles, land length, keyway, width and chamfers
- Quantity
Compare
Pressure, semi-pressure or tubing tooling
Pressure tooling
The tip does not extend into the die. The compound meets the conductor under pressure inside the crosshead, which gives a tight bond. Used for most core insulation.
Tubing tooling
The tip extends to the die face. The compound leaves as a tube and is drawn down onto the conductor, which gives a looser bond. Used for jackets and sheathing.
Semi-pressure tooling
A short tip extension, between the two, for moderate adhesion and control.
Whichever you run, the inner taper of the die must be larger than the outer taper of the tip, and the tip bore follows the conductor: too small and the conductor drags, too large and the wall goes eccentric. Send the conductor and the compound with the drawing and we check both.
FAQ
FAQ
Can you supply tips and dies for my crosshead?
Yes. Send the crosshead make and model with a drawing or a used set, and mark which part you need. We supply compatible tips and dies for the crosshead you run.
What do you need to quote in one go?
The crosshead make and model, a drawing or a used set, the tooling type (pressure, semi-pressure or tubing), the conductor and finished diameters, the compound and the quantity. With these we can quote without coming back to you.
Steel, carbide or diamond insert: which one?
It follows the compound, the conductor size and the line speed. Send those with the drawing and we propose the material.
What causes eccentric insulation?
Usually poor alignment, a tip bore that is too large, the wrong taper angles, or a worn tip. A tip and die made as a matched set to your drawing keep the conductor centred and the wall even.
Can I try one or two sets first?
Yes, as a trial order. We do not send free samples: trial sets are charged at the unit price, and the amount is credited against the batch order that follows.
What is the lead time?
Usually about 15 days, confirmed by item and quantity when we quote.
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