Gullco GK-200-RL - Manual (Page 6)

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GENERAL DESCRIPTION
The Gullco “KAT” is a heavy duty, all position travel carriage. It is an electrically powered self-
propelled carriage that travels in a forward or reverse direction, at precisely controlled speeds,
along a special track. The self-aligning wheel system of the carriage grips the top and bottom of the
track, enabling it to travel along any plane. The bogey wheel assembly keeps the carriage snug to
the track, while allowing it to be easily mounted and removed from the track at any point. The
positive drive of the “KAT” is obtained from a pinion that engages with the rack of the track, driven
by a low voltage permanent magnet motor and gear-head power unit assembly. Safety is greatly
enhanced by the use of Gullco’s low voltage (24 V), highly advanced control / power supply system
that is available in three line voltage inputs, i.e. 42, 115 and 230 VAC, single phase, 50/60 Hz, or
any unregulated 24 VDC power supply at 220 watts of power. The motor and the control operate
on 24 VDC, supplied by a power supply located within the casing of the “KAT” carriage. Therefore,
all operator interface devices (except the power on/off isolation switch) are subjected to signal level
voltages only. The microprocessor pulse width modulation motor control offers operator interface of
forward, stop, reverse and infinitely variable control of the speed, within the range of the model, as
well as an L.E.D. display indicating travel speed in either in/min. or cm/min. The travel speed is
electronically controlled using an optical tachometer located on the back of the gear-motor.
Through the use of this, closed loop, feedback circuitry, the motor control can obtain accurate and
constant speed control of the “KAT” carriage when running in any plane, regardless of the load
(within the rating of the equipment).
INTENDED / FORESEEN USAGE
The Gullco “KAT” carriage is used throughout the world to automate and improve the quality and
efficiency of single or multiple “head” welding / cutting operations. Welding guns or cutting torches
are readily mounted on the “KAT” carriage. Its track is positioned so that the “KAT” will move the
gun or torch along the desired path, then securely held in place using magnetic or vacuum activated
mounting devices. With the use of Gullco’s “KAT” carriage, welding guns or cutting torches can
operate with precise motion from start to finish regardless of the number of passes or the work
pieces involved, Improving the quality, efficiency and repeatability of the process. Detrimental
factors such as poor or awkward accessibility, operator fatigue, or inconsistent workmanship are
eliminated. Required quality levels are consistently attained and productivity and profitability
increased.