A welding rotary positioner table with a stepper motor is a rotating workholding table that precisely indexes and rotates a workpiece during welding. The stepper motor provides controlled, repeatable positioning for easier access, improved weld quality, and automation integration.
Common applications include manual and automated welding (MIG, TIG, stick), brazing, assembly, metal fabrication, inspection, and light machining where precise rotation and indexing of parts are required.
Capacities vary by model. Small tabletop units start around 50–200 kg, medium shop units 300–1000 kg, and heavy-duty industrial units can handle several tons. Check the specific model's rated payload for exact figures.
Accuracy and repeatability depend on the stepper motor, driver, gearing, and construction. Typical repeatability is within a fraction of a degree (often ±0.1° to ±0.5°) for well-built systems; exact specifications should be confirmed for each model.
Yes. Many units support both continuous rotation for circumferential welding and indexed (step) rotation for stop-and-weld operations. Mode selection is usually handled via the controller or driver settings.
Common interfaces include pulse/direction inputs for CNC/PLC integration, standalone controllers with keypad or pendant, analog speed control (potentiometer), and I/O for start/stop or foot pedal connections. Custom interfaces can often be provided.
Requirements depend on the stepper motor and driver: many systems run from 24–48 VDC for the control logic and 110–480 VAC for industrial power or mains, with stepper drivers powered by a DC bus. Confirm the model's voltage and phase requirements before installation.
Speed ranges vary widely; small units may rotate a few RPM up to several hundred RPM on light loads. Stepper-driven tables offer adjustable speed via the controller or driver settings and typically allow fine control over acceleration ramping.
Yes. Many manufacturers offer multiple table diameters, custom faceplates, T-slot patterns, and bolt hole configurations to match fixtures, chucks, or specific part geometries.
Standard safety features include emergency-stop integration, torque-limiting or soft-start motion control, mechanical locking or holding brakes, guarding options, and proper electrical grounding. Always follow local safety regulations and integrate guards as needed.
Installation typically involves mounting the unit on a flat, level surface, bolting it down, connecting the electrical supply and control signals, and verifying alignment with welding fixtures. Leveling feet or shims and mechanical anchors are commonly used.
Routine maintenance includes cleaning, periodic lubrication of bearings and gears per the manufacturer's schedule, checking fasteners and electrical connections, inspecting belts/couplings, and keeping the motor/driver cooling vents clear. Replace worn components promptly.
Yes. Stepper-driven positioners are commonly integrated with robotic systems. Integration typically uses encoder feedback (if fitted), PLC or robot I/O for indexing/handshake, and appropriate safety interlocks.
Yes. Typical accessories include faceplates, chucks, tailstocks, clamps, welding turntable fixtures, pendant controls, foot switches, brakes, and custom tooling. Many suppliers offer accessory packages or custom fixtures.
Warranties vary by manufacturer but commonly range from 12 to 24 months for parts and limited labor. Lead times depend on stock, customization level, and shipping; standard units may ship in weeks, custom builds can take longer. Confirm exact terms with the supplier.
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