Bunching and stranding dies
Dies used to guide and/or form wires entering, moving through,
and/or exiting bunching and stranding machines.
In the case of double and single twist bunchers, with the take-up
reel on the inside of the machine, the dies are located at the
entrance of the machine to gather the incoming wires.
Sometimes, the dies are located before the take-up reel inside the
machine to shape the wire that goes onto the reel.
In the case of tubular and planetary stranders, stranding dies are
used inside the machine to guide the wires and to gather and form
the wire prior to going on the reel outside of the machine.
Blank (Nib) material
Carbide, PCD, natural diamond, synthetic single crystal, ceramic.
Stainless and cold rolled steel.
Size ranges from 0.380 mm to over 35 mm (.015” to over 1.38”)
depending on the cable size being manufactured.
Tolerance is generally plus or minus 1% of the hole diameter.
Angle range is generally 18 to 24 degrees plus or minus 2 degrees.
Bunching and stranding dies must have a well-blended profile with
no sharp edges.
The entrance of a bunching or stranding die must be wide enough to
accept the incoming wires from the lay-plate without scraping.
The standard angle is 20 to 24 degrees. The wider angle allows for
a good blend from the entrance to the reduction angle.
The bearing length for random bunched wires is not critical. The
purpose of the die is to gather the wires from the lay plate and
direct them into the machine. The bearing length for concentric and
unilay constructions is usually longer to help hold the wires in
position as they enter the machine.
· Polycrystalline Diamond Dies (PCD Dies)
· Synthetic Single Crystal Diamond Wire Dies
· Natural Diamond Dies
· Tungsten Carbide Wire Dies
· Extrusion Tools And Dies
· Bunching And Stranding Dies