O-Type 300-1000kg Single Axis Horizontal Welding Positioner IP65 for Robot Cells

O-Type Single Axis Horizontal Welding Positioner for 300-1000kg Parts

The GBS-02-03 series is an O-type single axis welding positioner that rotates a workpiece horizontally so the robot always welds in the flat position. A closed O-frame carries the spindle and the welding earth return, giving a rigid circle of support around a Φ500mm-class table that turns through 0-360° with a positioning accuracy of ≤1arcmin. Three load classes cover 300kg, 500kg and 1000kg, table height is 800mm as standard with custom heights available, and the gear motor can be sized from 1kW to 3kW depending on cycle time. The unit runs on 220V or 380V 50/60Hz and is built to IP65, so it survives the dust and spatter of a production welding cell. For a fabricator who needs a steady 300-1000kg horizontal turntable under a robot, this single-axis design is the simplest reliable answer: one axis, one steady earth path, and a table that indexes fast enough to keep the robot busy.

Technical Specifications

Advantages of the O-Frame Layout

• Closed loop stiffness: the O-frame supports the spindle from both sides, so a 1000kg part does not deflect the table face.
• Flat-position welding: the horizontal table keeps the weld pool under gravity, improving penetration consistency.
• IP65 protection: the drive and feedback are sealed against spatter, grinding dust and coolant mist.
• Fast indexing: adjustable speed and automatic control shorten the non-welding part of the cycle.
• Simple integration: one rotary axis is easy to add to a robot controller or run from its own cabinet.

Typical Applications

• Circular seam welding of flanges, rings and pipe spools
• Wheel hubs, bearing housings and motor end caps
• Valve bodies and pump covers requiring a continuous round weld
• Fan and impeller assemblies
• General job-shop work where parts are clamped on a face plate

Frequently Asked Questions

Q: When is a single axis positioner enough?
When the part has a dominant circular seam or one face that needs welding. The O-type single axis welding positioner rotates the part under the torch and keeps the seam flat; a two axis unit is only needed when the part must also be tilted.

Q: How is the welding earth connected on a rotating table?
Through a dedicated earth brush on the spindle, so current does not pass through the bearings. This protects the drive and keeps the arc stable at 500A class currents.

Q: Can the 300-1000kg horizontal turntable be supplied with a custom table?
Yes. Table diameter, T-slot pattern, chuck interface and table height are made to order, and the frame is re-checked for stiffness at the requested overhang.

Q: What maintenance does an IP65 robot welding positioner need?
Grease the spindle bearing at the interval in the manual, check the earth brush wear, clean the table T-slots and confirm the seal condition during planned shutdowns.

Production and Support

Gongboshi Robot Technology manufactures welding positioners and robot external axes in Shanghai, serving aerospace, automotive, chemical and new-energy customers since 2016 with more than 100 engineers on staff. Each IP65 robot welding positioner is assembled, run in and load tested before shipment, and ships with a test record, wiring diagram and foundation plan. Standard models are delivered in 15-30 working days under a 12-month warranty, with remote commissioning support and spare parts from stock.