UR3e vs igus ReBeL: Industrial Cobot vs Low-Cost Plastic Cobot
The Universal Robots UR3e and the igus ReBeL sit at opposite ends of the cobot market. The ReBeL is a lightweight plastic cobot that runs on 24 V and costs under a quarter of the UR3e. The UR3e carries more, is far more precise and has a full industrial feature set.
Quick verdict. The UR3e is the right choice for production work, with 3 kg payload, ±0.03 mm repeatability, a 3 m/s tool speed and a built-in force/torque sensor. The igus ReBeL is the right choice for simple handling, teaching and service tasks on a tight budget, with an 8.2 kg arm, a 24 V supply and a listed price of about $7,800.
UR3e and igus ReBeL at a glance
The UR3e carries 3 kg over 500 mm, repeats to ±0.03 mm and weighs 11.2 kg.
The igus ReBeL carries 2 kg, reaches 664 mm at full stretch with a 400 mm nominal working reach, repeats to ±1 mm and weighs 8.2 kg.
Main specification comparison
Specification | Universal Robots UR3e | igus ReBeL |
Brand | Universal Robots | igus |
Listed price | $33,800 | $7,796 |
Payload | 3 kg | 2 kg |
Reach | 500 mm | 664 mm maximum, 400 mm nominal |
Repeatability | ±0.03 mm | ±1 mm |
Axes | 6 | 6 |
Speed | 3 m/s maximum TCP speed | Not specified |
Arm weight | 11.2 kg | 8.2 kg |
IP rating | IP54 | Not specified |
Price comparison
UR3e: listed from $33,800
igus ReBeL: listed from $7,796
Difference: $26,004
The ReBeL costs roughly 77% less
Precision and payload
The UR3e publishes ±0.03 mm repeatability, against ±1 mm for the ReBeL, and carries 3 kg against 2 kg. That gap rules the ReBeL out of precision assembly and insertion, but it is acceptable for simple pick-and-place, sorting and demonstration tasks.
Weight, power and design
The ReBeL uses plastic gearboxes and joints from igus, weighs 8.2 kg, runs on 24 V and has its control system built into the base. It is sold as a ready-to-run version and as an open-source version without controller, which suits education, research and makers.
Industrial features
The UR3e has a built-in ±30 N / ±10 Nm force/torque sensor, a 3 m/s maximum tool speed, IP54 and PROFINET with PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2 support, with UR+ accessories. Those features matter in production cells with safety and integration requirements.
Best applications for the UR3e
Production benchtop assembly
Force-controlled insertion
Robots inside machines
Best applications for the igus ReBeL
Simple pick-and-place and sorting
Teaching and education
Service and demonstration robots
UR3e advantages
±0.03 mm repeatability
3 kg payload
Full industrial feature set
UR3e limitations
About $26,004 higher listed price
igus ReBeL advantages
About 77% lower listed price
8.2 kg arm with built-in control
Open-source version available
igus ReBeL limitations
±1 mm repeatability
2 kg payload
Final verdict
Choose the UR3e for precise production work. Choose the igus ReBeL for simple handling, teaching and service tasks where low cost matters more than precision.
Sources and further reading
Frequently asked questions
Which is cheaper, the UR3e or the igus ReBeL?
The ReBeL is listed from about $7,796 and the UR3e from $33,800, a difference of about $26,004.
Which robot is more precise?
The UR3e publishes ±0.03 mm repeatability and the ReBeL ±1 mm.
Which robot carries more?
The UR3e carries 3 kg and the ReBeL 2 kg.
Which robot is lighter?
The ReBeL weighs 8.2 kg and the UR3e 11.2 kg.
Is there an open-source ReBeL?
Yes. igus sells a ready-to-run version and an open-source version without controller.
Which robot should I buy?
Choose the UR3e for production. Choose the ReBeL for low-cost simple tasks.
