250 kg Payload Rotating Base with Servo & Harmonic Gearbox
Heavy-duty rotating base for 250 kg payloads: 750 W AC servo with high-precision harmonic gearbox, ±0.01° repeatability, up to 20 rpm, Ø450 mm table. Three modes: manual, constant speed and position indexing. Single-phase 200–240 VAC, 12-month warranty. Made in Vietnam by Robot3T.
This heavy-duty rotating base carries up to 250 kg and positions it with ±0.01° repeatability. A 750 W AC servo motor drives a high-precision harmonic gearbox for smooth, backlash-free rotation up to 20 rpm. Three built-in control modes – manual jog, continuous rotation at a set speed, and automatic indexing to preset positions – let you use it as a welding positioner, an extra axis for a robot, or a stand-alone indexing table. It runs on single-phase 200–240 VAC and is built from steel and anodized aluminium. Designed and built by Robot3T in Vietnam, with a 12-month warranty.
Request a quote WhatsApp +84 974 908 615Three control modes
- Mode 1 – Manual: jog the table by hand control for setup, loading and inspection.
- Mode 2 – Constant speed: continuous rotation at the speed you set, ideal for circumferential welding and coating.
- Mode 3 – Position indexing: automatically rotates to preset angles, so the robot or operator always works at the right position.
Typical applications
- Welding positioner: rotate pipes, flanges and frames for circular and multi-side welds.
- External axis for robots: extend a cobot or industrial robot’s reach around large parts.
- Indexing table: multi-station assembly, screwing, drilling and inspection.
- Painting, grinding and polishing: present every side of the workpiece to the tool.
- 3D scanning and product display: precise, smooth rotation under heavy loads.
Why this rotating base
- Heavy payload – 250 kg on a compact Ø450 mm table.
- Very precise – harmonic gearbox and servo motor give ±0.01° repeatability with no backlash.
- Ready to use – servo drive and three control modes built in; no programming needed for basic use.
- Robust build – steel structure with anodized AL6061 aluminium parts for industrial duty.
- Local support – designed and built in Vietnam, 12-month warranty, fast service and spare parts.
Specifications
| Payload | 250 kg |
| Table diameter | Ø450 mm |
| Maximum speed | 20 rpm |
| Repeatability | ±0.01° |
| Control modes | Manual / constant speed / position indexing |
| Motor | AC servo, 750 W |
| Gearbox | High-precision harmonic |
| Power supply | 1-phase 200–240 VAC |
| Material | Steel + aluminium AL6061, anodized |
| Warranty | 12 months |
| Origin | Robot3T, Vietnam |
Product images
See it in action
Heavy loads, smooth and precise
- 750 W servo with harmonic gearbox.
- Manual, constant-speed or indexing mode.
- Works stand-alone or with a robot.
Frequently asked questions
Can it be controlled by my robot or PLC?
Yes. It can work stand-alone with its own modes, or be integrated with a robot controller or PLC as an external axis. Tell us your system and we will advise on the interface.
Can you make a version with a larger table, higher payload or tilting axis?
Yes. We build rotating bases and 2-axis positioners to order. Send us the workpiece size, weight and process.
Is it suitable for welding?
Yes. It is commonly used as a welding positioner together with our VietCobot welding cells. Ask us about grounding and fixture options for your parts.
Do you ship outside Vietnam?
Yes. Contact sales@robot3t.com for a quote including shipping to your country.
Need to rotate heavy parts precisely?
Send us the size, weight and process of your workpiece. Our engineers will recommend the right rotating base or positioner, and quote at no cost.
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