UR5e vs RealMan RM63: Cobot Comparison of Payload, Reach and Weight
Updated: 8 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE This is a load-versus-reach trade-off: Universal Robots UR5e has the higher stated load capacity, while RealMan RM63 has the longer stated reach. Start with the constraint your task actually has. |
→ CONSIDER Universal Robots UR5e Consider it when additional load capacity matters more than extra reach. This article compares 5 kg with a published reach of 850 mm; include the gripper and part in the load. |
→ CONSIDER RealMan RM63 Consider it when reaching farther matters more than the higher payload of the alternative. This article compares 3 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 UR5e and the RealMan RM63 cover similar reach with very different builds. The UR5e carries 2 kg more and repeats more tightly. The RM63 reaches 50 mm further, weighs half as much with its controller in the base and costs about 49% less.
Quick verdict. The UR5e is the better choice for production cells, with 5 kg payload, ±0.03 mm repeatability and a full industrial feature set. The RealMan RM63 is the better choice for mobile and low-power platforms, with a 10 kg arm, a 24 V DC supply, 900 mm reach and a listed price about 49% lower.
UR5e and RealMan RM63 at a glance
The UR5e carries 5 kg over 850 mm, repeats to ±0.03 mm and weighs 20.6 kg.
The RealMan RM63 carries 3 kg over 900 mm, repeats to ±0.05 mm and weighs 10 kg with the controller inside its base.
Main specification comparison
Specification | Universal Robots UR5e | RealMan RM63 |
Brand | Universal Robots | RealMan |
Listed price | $35,000 | $17,910 |
Payload | 5 kg | 3 kg |
Reach | 850 mm | 900 mm |
Repeatability | ±0.03 mm | ±0.05 mm |
Axes | 6 | 6 |
Speed | 180°/s maximum joint speed on all six joints | TCP up to 2.8 m/s; joints 1-2: 180°/s; joints 3-6: 225°/s |
Arm weight | 20.6 kg | 10 kg |
IP rating | IP54 | Not specified |
Controller | UR control box CB 5.2 / CB 5.5 | Integrated in the robot base |
Price comparison
UR5e: listed from $35,000
RealMan RM63: listed from $17,910
Difference: $17,090
The RM63 costs roughly 49% less
Payload and reach
The UR5e carries 5 kg, 2 kg more. The RM63 reaches 900 mm, 50 mm more, and RealMan publishes a 2.8 m/s tool speed. Machine tending with heavier grippers needs the UR5e.
Weight and power
The RM63 weighs 10 kg, about half the UR5e, runs from 24 V DC at a typical 150 W and houses its controller in a 107 mm base, with Ethernet, WiFi, RS485 and CAN FD connectivity. That makes it practical for mobile robots and battery-powered platforms.
Precision and industrial features
The UR5e publishes ±0.03 mm repeatability against ±0.05 mm. It has a built-in 50 N / 10 Nm force/torque sensor, 17 configurable safety functions, IP54, and PROFINET with PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2, with UR+ accessories.
Best applications for the UR5e
Machine tending up to 5 kg
Force-controlled screwdriving
Packaging and kitting
Best applications for the RealMan RM63
Light handling on mobile robots
Battery-powered platforms
Research setups
UR5e advantages
5 kg payload
±0.03 mm repeatability
Full industrial feature set
UR5e limitations
About $17,090 higher listed price
20.6 kg arm
RealMan RM63 advantages
10 kg arm with integrated controller
900 mm reach
About 49% lower listed price
RealMan RM63 limitations
3 kg payload
±0.05 mm repeatability
Final verdict
Choose the UR5e for production cells. Choose the RealMan RM63 for light handling on mobile and low-power platforms.
Sources and further reading
Frequently asked questions
Which is cheaper, the UR5e or the RealMan RM63?
The RM63 is listed from $17,910 and the UR5e from $35,000, a difference of $17,090.
Which robot carries more?
The UR5e carries 5 kg and the RM63 3 kg.
Which robot has the longer reach?
The RM63 reaches 900 mm and the UR5e 850 mm.
Which robot is lighter?
The RM63 weighs 10 kg and the UR5e 20.6 kg.
Which robot is more precise?
The UR5e publishes ±0.03 mm repeatability and the RM63 ±0.05 mm.
Which robot should I buy?
Choose the UR5e for production. Choose the RM63 for mobile platforms.
