corbin sk-1 User Guide

SK-1-H Stripper Kit

The Corbin SK-1-H Stripper Kit works with

the Corbin Hydro-Press, Hydro-Junior, and Mega Mite
Presses, in conjunction with the ET-1-H jacket trim­mer dies. It provides both automatic ejection of the
trimmed jacket from the die, and automatic removal
of the surplus trim material from the punch, on the
down stroke.

The kit is universal for all standard calibers, with
the exception of one part: the stripper plate. The kit is
ordered with one specific caliber of plate, and addi-

tional plates can be added to use
the kit with other calibers of dies.

The part number for the additional
plate is SK-P-H (specify the cali-

ber).

The kit consists of a thin
spring-steel stripper plate, which
fits over the proper caliber of

jacket trim punch, a heavy steel

knock out plate, two long operat­ing rods with holes cross-drilled

through them to take spring clips,
two short push rods and two

couplings, plus eight spring clips
for easy assembly and disassem­bly.

The head and the ram guide plates of the various
Corbin presses have two sets of holes to accept the
operating rods. The rods drop through the holes in the
head plate (which is eqiupped with anti-friction
bearings). The knock-out plate is secured by four
spring clips, as shown. The push rods and couplings
attatch to the bottom of the operating rod with the
remaining spring clips. The top of the rod has two
closely spaced holes, and the bottom only has one
hole (to attach the coupling). The stripper plate is free
to move independently from the rest of the assembly.

The jacket is placed over the end of this punch,
pushed up into the die, and trimmed to the length set
by the die. The surplus material is pushed off the
punch on the downward stroke by the stripper plate,
which comes to a fixed position near the end of the
stroke while the ram and punch continue down.

The exact length of trimmed jacket can be set by
the depth gage, provided with the ET-1-H trimmer die.
The threaded bushing in the top of the die sets the
trimmed length. By setting the length of the rod

projecting from the
depth gage bushing
so it is the same as
the desired jacket
length, you can push
the gage into the die
mouth and then set
the dies depth
bushing to just
permit the gage to

fit into the die (so
that the gage bush­ing just touches the
die face).

The ET-1-H jacket trim
punch is shown in position at
the bottom of the stroke.

the punch is in the top-most position, the shoulder of
the punch just touches the die face. The jacket is
pinched off at the end of the stroke, and ejected on
the down stroke.

Depth gage is used to
set the jacket trim die
for desired length of
jacket: stripper pushes
jacket out of the die on
the down stroke.

Then, the die
itself is adjusted
down, without a
jacket, so that when