• Description
  • Functions
  • Features
  • Benefits

Both Weld Oscillator Control Systems are a compact, lightweight, weld torch manipulation control system comprised of the micro-controller based Weld Oscillator Control and a stepper motor driven Pendulum Oscillator Assembly or Linear Slide Assembly.

The WOC-500 provides the capacity to control Centerline Position, Oscillation width, Oscillation Velocity, and Left and Right Dwell. The system supplies the user with an easily accessible external interface for remote control functions.

The WOC-1000 provides the capacity of providing independant control of all torch movements in the horizontal plane. Employing patented "Thru-Arc" tracking technology, the system provides automatic torch centering and width control. The WOC-1000 provides automatic torch centering and four modes of operation. Constant width oscillation with automatic torch centering, variable width and centerline control using a depth of penetration parameter to control the width, single right side tracking with constant width and single left side tracking with constant width. All of the seam tracking information is derived from the welding arc and oscillator position.

Both systems provide a user definable 50 sequence Programmable Logic Controller (PLC) with four 24 vdc inputs and two N.O. relay contacts. Using the PLC the user can provide external program control and simple power source interface. The RS-232 serial port is provided for off-line programming and system configuration and can also be used to remotely control both the WOC-500 and WOC-1OOO.

The second component is the pendulum type oscillator or linear slide that are driven by a stepper motors which provides high reliability and low maintenance costs. The oscillator can be installed in-line or at 90 degrees and because of the compact configuration, is usable in confined spaces.


The Weld Oscillator Control provides the necessary command signals to the stepper motor powered drive to permit the selection of the following functions from the front panel of the oscillator control box.

Run Enables pendulum oscillation
Jog Jogs the center position in a CW or CCW direction
Speed Controls the speed of the pendulum oscillation
Left Dwell Controls the dwell time on the left side of the oscillation pattern
Right Dwell Controls the dwell time on the right side of the oscillation pattern
  Center Dwell Controls the dwell time at the center of the oscillation pattern
Width Controls the width or amplitude of the weave pattern
  Gain Provides sensitivity control for all tracking functions

Employing the external interface permits remote control of the oscillator functions and gives convenient, electronic access to peripheral equipment.

Jog (CW & CCW)
Control Reset
Both WOC-500 and WOC-1000
RS-232-C Serial Port
Accurate positioning
Stepper motor driven
External interface capability
Compact lightweight design
Convenient flexible mounting
User definable 50 sequence PLC
External interface capability
Only WOC-1000
All tracking information derived from welding arc and oscillator position


Both WOC-500 and WOC-1000
Permits off-line programming, system configuration and remote control
Provides repeatable positioning for critical applications
Low maintenance cost
Permits remote control of oscillator and easy interface with peripheral devices
Adaptable in confined areas
Oscillator can be installed in any position
Only WOC-1000
No bulky probes to contend with or maintain
Permits independent control of all welding torch movements in the horizontal plane
Product Specifications




  • Weld Oscillator Control
  • Pendulum Oscillator
  • Linear Slide
Dimensions 6.625"H X 4.125"W X 8.75"L (1 68mm X 105mm X 222mm)
Weight 5.5 lbs (2.5kg)
Power Requirements 115 vac or 42 vac 50/60 Hz @ 200 va
Dwell Time 0.02 to 2.0 seconds (left and right)
Velocity 0.240 to 60° / seconds
Width ±0.060 to 15°
Dimensions 4.687"H X 2.375"W X 4.5"L (119mm X 60.5mm X 114.3mm)
Weight 3.5 lbs. (1.6kg)
Dimensions 17.08”H x 5.00”W x 2.63”D (434mm X 127mm x 67mm)
Max Travel 7.25” (184 mm)
Weight 9-1/2 lbs (4.32kg)
Velocity 0.2 - 1.5 inch/sec
Weight Capacity 45 lbs @ 3” from slide face
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10702 Old Bammel N. Houston Road, Houston, TX 77086 USA - Phone: 713-462-2118 - Fax: 713-462-2503