UR3e vs Doosan A0509: Small Cobot Comparison of Price, Payload and Reach
Updated: 9 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Doosan A0509 has the higher stated load capacity and longer stated reach. Those figures help shortlist it for heavier loads or wider layouts, but do not prove a faster production cycle. |
→ CONSIDER Universal Robots UR3e Consider it when its stated load and reach already cover your task and its controls fit your equipment. This article compares 3 kg with a published reach of 500 mm; include the gripper and part in the load. |
→ CONSIDER Doosan A0509 Consider it when additional load capacity and reach matter. This article compares 5 kg with a published reach of 900 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Check the real tool, movement path and safety assessment before choosing. A collaborative label does not make every task safe without guarding; compare complete installation quotes. |
The Universal Robots UR3e and the Doosan A0509 cover small-part automation from two directions. The UR3e is a compact benchtop arm. The A0509 is part of Doosan's fast, lightweight A-SERIES, with more payload and reach at a lower price.
Quick verdict. The Doosan A0509 offers more for less, with 2 kg more payload, 400 mm more reach and a listed price about 22% lower. The UR3e is the better choice for benchtop and in-machine cells, with an 11.2 kg arm, built-in force sensing and a 3 m/s tool speed.
UR3e and Doosan A0509 at a glance
The UR3e carries 3 kg over 500 mm, repeats to ±0.03 mm and weighs 11.2 kg.
The A0509 carries 5 kg over 900 mm, repeats to ±0.03 mm, weighs 21 kg and is rated IP54. It runs on the Doosan Controller with the DART Platform.
Main specification comparison
Specification | Universal Robots UR3e | Doosan A0509 |
Brand | Universal Robots | Doosan |
Listed price | $33,800 | $26,300 |
Payload | 3 kg | 5 kg |
Reach | 500 mm | 900 mm |
Repeatability | ±0.03 mm | ±0.03 mm |
Axes | 6 | 6 |
Speed | 3 m/s maximum TCP speed | Over 1 m/s max. TCP speed |
Arm weight | 11.2 kg | 21 kg |
IP rating | IP54 | IP54 |
Controller | UR control box CB 5.5 / CB 5.6 | Doosan Controller with DART Platform; teach pendant optional |
Price comparison
UR3e: listed from $33,800
Doosan A0509: listed from $26,300
Difference: $7,500
The A0509 costs roughly 22% less
Payload and reach
The A0509 carries 5 kg against 3 kg and reaches 900 mm against 500 mm. For machine tending and packaging, the A0509 covers much more of the cell.
Precision and speed
Both robots publish ±0.03 mm repeatability. Universal Robots publishes a 3 m/s maximum tool speed for the UR3e, and Doosan publishes over 1 m/s for the A0509.
Weight and mounting
The UR3e weighs 11.2 kg on a Ø128 mm base, about 10 kg less than the A0509. Both can be mounted in any orientation, but the UR3e fits more easily on benches and inside machines.
Force sensing and programming
The UR3e has a built-in ±30 N / ±10 Nm force/torque sensor and runs PolyScope with PROFINET, PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2.
The A0509 is programmed on the teach pendant or on a PC with Doosan's DART Platform, with hand-guided teaching. It publishes Modbus TCP and RTU, PROFINET IO, EtherNet/IP, RS422/RS485 and 16 digital inputs and outputs.
Best applications for the UR3e
Benchtop assembly and screwdriving
Lab automation and testing
Robots mounted inside machines
Best applications for the Doosan A0509
Cost-sensitive machine tending
Packaging and pick-and-place up to 5 kg
PC-programmed cells using DART
UR3e advantages
11.2 kg arm and Ø128 mm base
Built-in force/torque sensor
3 m/s maximum tool speed
UR3e limitations
3 kg payload and 500 mm reach
About $7,500 higher listed price
Doosan A0509 advantages
About 22% lower listed price
5 kg payload and 900 mm reach
Broad I/O and fieldbus support
Doosan A0509 limitations
21 kg arm
Final verdict
Choose the Doosan A0509 for more payload and reach at a lower price. Choose the UR3e for compact benchtop cells and force-controlled tasks.
Sources and further reading
Frequently asked questions
Which is cheaper, the UR3e or the Doosan A0509?
The A0509 is listed from $26,300 and the UR3e from $33,800, a difference of $7,500.
Which robot carries more?
The A0509 carries 5 kg and the UR3e 3 kg.
Which robot has the longer reach?
The A0509 reaches 900 mm, 400 mm more than the UR3e.
Are they equally precise?
Yes. Both publish ±0.03 mm repeatability.
Which robot is lighter?
The UR3e weighs 11.2 kg and the A0509 21 kg.
Which robot should I buy?
Choose the A0509 for payload, reach and price. Choose the UR3e for compact benchtop work.
