GPA Transfer Systems run angularly synchronous with the press drive of
mechanical presses. With hydraulic presses, we deliver a start-stop inter-link to the
press. The Transfer Systems are fully electronic, freely programmable and available
in 2 or 3 axes for:

• mechanical and hydraulic presses
• feed travel of up to approx. 2500 mm
• bed sizes of up to approx. 7000 mm
• parts weighing up to approx. 80 kg
• number of strokes: up to approx. 120 strokes per minute

Utilization

GPA Transfer Systems are designed to transport parts stepwise in multi-station
die sets. Uses range from traditional sheet metal forming applications to
multi-station forging applications. Our use of integrated subassemblies allows the
free-range versatility of multiple application modes as well as the trouble-free
integration of the press operating cycle. This makes the application of GPA
Transfers ideal for retro-fits and new press installations.

Concept

GPA represents the following performance advantages:

• 2 or 3 axis movement: grip-feed, lift-feed, grip-lift-feed or suction operations
• clean separation of operational axes: one servo-motor per axis, coupled via an electronic curve
• all axes freely programmable
• fully rotational integration of the press stroke for mechanical presses (master-slave principle)
• start-stop integration for the hydraulic press
• memory capacity of up to 500 tool sets, instantly downloadable
• fast acting and easy to understand operator display graphics
• clear message display of operational faults and maintenance functions
• structured operating system for the various program components
• off-site diagnostic and service capability
• electronic overload monitoring with mechanical back-up
• variable mounting options for feed, grip and grip-lift tooling
• rugged mechanical structure with widespread use of standard components
• electonically activated central lubrication system

Design (Example)

Options

GPA offers unlimited options in conjunction with the standard line program.
The most popular options:

• supply and mounting of encoder
• additional gripper bars or gripper bar subplates
• gripper bar quick disconnects and rest stations
• implementation of additional axes (e.g. rotation, tip action)
• incorporating external operations
• designing and incorporating additional systems (e.g. stackers,
  destackers, parts lubrication)
• disassembling existing structures, installation of new systems, training,
  production assistance, preventive maintenance and service contracts

GPA has the right solution for you!
 

Mounting and Integration

GPA Transfer Systems are laid out in relationship to the press bed. The
drive housings are mounted to the press columns. When necessary, the Transfer
System can be alternately mounted to rolling bolsters or to additionally provided
sub-frames. Cut-outs in the press frame for drive shafts are not necessary.
The electrical installation is simplified due to almost all components being housed
in a single switch cabinet. The panel is linked to the transfer and operator station
via integrated multi-pin connectors. With predefined information exchange between
the press, the transfer (e.g. slide position, start commands, E-stops, etc.), a trouble
free operation is assured. All systems include a modem link for off-site trouble
shooting and new part integration.

Specification

for 2 axis Transfer T2

for 3 axis Transfer T3