SH Series
Hydraulic Plate Shears

Product
Summary | Key
Features | Swing
Beam Principal
Machine
Features | Construction
Features | Specifications
Product
Summary
For Plate Fabricating: Standard model SH 6000
Series; the SH Series Hydraulic Plate Shear from
50' x 1/4" through 30' x 1"
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Key
Features
Standard
Equipment
CNC back gauge - 48" range (36" on SH2000
Series)
Retracting back gauge bar
Full length low voltage shadow light
High-Carbon High-Chrome 4 edged premium grade
knives
6' squaring arm with scale
Comprehensive instruction manual & parts book
Operators Tool kit
Design
Features
Complete hydraulic and electric overload
protection
Point of operation safety guards to requirements
Self-aligning clevis mounted cylinders
Low rake angle to reduce distortion of material
All steel welded and bolted construction
No foundation required
Service
Features
All hydraulic
fittings are "O" ring or JIC-37 Flair
-- no pipe threads
All circuits and solenoids independently fused
All the electric wiring is consistently color-coded
and terminals numbered
All commercial components are suppliers standard
unmodified shelf parts
Minimal lubrication required - 4 grease points
Control
Features
Convenient knife clearance adjustment &
indicators
Convenient stroke length adjustment
Inching controls for added safety
Lockable control selector switch
Foot switch with anti-trip latch
Optional
Equipment
Power operated back gauge extended to 60" (48"
on SH2000)
Squaring arm extended to 96" or 120"
Increased throat gap - 12"
Disappearing front stops
Extended front support arms
Additional front support arms
Point of
Operation Guarding
The machine must not be operated without point of
operation guarding. It is the responsibility of
the user to insure the machine is operated safely
and has appropriate guards for the type of work
being performed. The manufacturer can not satisfy
the guarding requirements for the many and varied
applications these machines can perform. The
manufacturer will assist the purchaser with his
selection of guarding and will offer factory
installation of the guarding selected by the
purchaser.
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Swing Beam
Principal

The top beam of this type of machine is located
by two precision self aligning spherical bearings.
this design concept eliminates the need for
slides and guides and is known as the "swing
beam" principal. The steel weldment is a
fully enclosed "boxed" section which
becomes an extremely rigid member supporting the
top knife.
After many
years of experience with the "swing beam"
we have developed the geometry of this design
with many superior features. We believe our
machines are the only ones using the swing beam
design and having both upper and lower four edged
knives, which has the top knife meeting the
material being sheared with the square corner of
the knife at 90 degrees to the shearing surface.
On all other machines known to us, the top knife
shears through the material on a slight angle and
their knife geometry causes the corner of the
knife to crush an indentation along the sheared
edge during the shearing operation.
The effect of
this crushing produces the stresses in the
material which causes distortion in the piece cut
off.
The SH-2000
can cut a 2" strip of 1/4" plate
with no distortion.
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Machine
Features
Hydraulic
System
The entire hydraulic system is to JIC standards
and makes maximum use of flared fittings,
installed with the ultimate in simplicity and
accessibility to servicing the circuit components.
The electric motor, hydraulic pump, valves and
piping are mounted as a self-contained module in
the power unit and may be swiftly and easily
replaced with an exchange unit to simplify
reconditioning or service work in the distant
future. The hydraulic oil tank is designed for
operation on 100% duty cycle, with sufficient oil
capacity to dissipate any significant temperature
rise above normal operating levels.
Control
Panel
The control panel features a lockable mode
selector to provide "Off", "Inching"
and "Single Cycle" functions. In the
Off position the machine is completely inactive.
The Inching mode allows the operator to gradually
move the top beam down to check the work prior to
taking the cut or to facilitate checking knife
clearance when this may become necessary. This
function can also be used to maintain hold down
pressure after taking a cut to allow the operator
to support the material on the table and prevent
it from falling after the hold downs have
released.
Knife
Clearance Adjustment
A two-point
knife clearance adjustment is provided as
standard equipment. However, because of the basic
design and structural rigidity of these shears,
virtually any thickness of stock can be cut - to
the maximum capacity - without adjusting knife
clearance.
Being mounted
on eccentric pins or cams, the bearings serve as
a simple knife clearance adjustment. These two
bearings are the only two critical wearing points
in the entire machine design. On larger capacity
shears where frequent changes in knife clearance
are necessary, clearances can be altered swiftly
and accurately to graduations shown on a knife
clearance indicator.
Stroke
Length Adjustment
By means of a simple thumb screw the stroke
length may be adjusted to reduce cycle time and
increase productivity on shorter work by as much
as an additional 80%.
CNC Back
Gauge System
- SH-2000
and SH-3000 Back Gauge Range = 36" (Standard)
- SH-4000
and SH-6000 Back Gauge Range = 48" (Standard)
- SH-8000
Back Gauge Range = 48" (Standard)
Choice of
Table Styles
- Fully
machined flat table with hand slots. (Type
1)
- Ground
table plates, adjustable height. (Type 2)
- Combination
ball transfers and ground plate. (Type 3)
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Construction
Features
The frame and
all attachments are fabricated from high-quality
steel to produce a virtually indestructible
assembly. Extreme strength and rigidity are
designed into the frame. The table is a fully-enclosed
box section welded between two high strength side
frames.
Bearings
& Gears designed into the machine make
maximum use of proven materials which are known
to ensure long life with minimum lubrication.
Most applications have no need for any
lubrication and almost all the bearings are self
aligning type.
The hydraulic
system is the ultimate in simplicity, using only
one pump,
two control valves and a pressure control valve.
Overload protection is set
during factory testing procedures and eliminates
the possibility of breakage
caused by inadvertent misuse. Balanced hydraulic
system eliminates
torsion in frame.
The electric
system has a 115 volt control module separate
from the 230/460 volt motor starter circuit. Both
circuits have quick change components and also
can be simply replaced as complete exchange
modules.
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