Manual
LED-1
Lead Extruder Die
for use in Corbin Hydro-press
The Corbin LED-1 Lead Extruder Die is used in the Corbin CHP-1 Hydro-
press or the Corbin CSP-2H Hydraulic Mega-Mite press, to produce lead
wire from soft lead.
The kit consists of a billet moulding set (two billet mould tubes approxi-
mately 4 inches long with a 0.785-inch bore and a mounting base, which
supports a tube while it is being filled with hot lead), and the extruder itself,
which consists of a die body with 0.825 inch bore, a threaded retained that
screws into the top of the body to hold the die in place, one or more LED-
D extruder dies for each diameter of wire desired (four are provided with
the kit), a locking nut for the extruder body, and a two-part punch and base,
which screws into the press ram.
To make lead wire, pure soft lead is first melted and poured into the billet
tubes to form lead cylinders (or billets) about 4-inches long. There are two
tubes and one base. The base is normally mounted to your bench top with
two long screws, provided, or fastened to a piece of two by four lumber
which can then be clamped in a vise. The tubes slip over a plug on this
base, which seals the lead and holds the tube upright during pouring.
1. Retainer Bushing
2. LED-D Extruder Die Insert
3. Extruder Body
4. Extruder Punch
4.
3.
1.
2.
Make certain that the extruders punch is correctly aligned with the bore of
the die before applying pressure. The punch must be securely screwed
into its threaded base, which in turn screws into the top of the press ram.
The punch must be able to move at least one inch into the die cavity
before any pressure is generated. Otherwise, the punch may dig into the
die walls and destroy the tool. The LED-1 is designed to extrude soft lead
only (Bhn 5.0). To extrude harder alloys requires a custom made press,
such as the Corbin X-Press, or a smaller bore on the extruder.
Always make sure the retainer bushing is securely threaded into the top of
the extruder before applying pressure, to avoid tearing threads off the bush-
ing or from the top of the extruder. Pressures used in this operation are
tremendous: follow instructions to avoid damage to the tool or injury to
yourself!
PO Box 2659
White City, Oregon 97503 USA
541-826-5211 (phone - Mon to Thurs, 9am-5pm)
5410826-8669 (fax - 24hrs)