UR3e vs RealMan RM63: 3 kg Cobot Comparison of Reach, Weight and Price
Updated: 8 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Both are compared at 3 kg. RealMan RM63 has the longer stated reach, which may help reach separated fixtures; it does not guarantee access at every tool angle. |
→ 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 RealMan RM63 Consider it when extra reach is useful while the compared load capacity is the same. 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 UR3e and the RealMan RM63 both carry 3 kg. The RM63 reaches 400 mm further, weighs 10 kg with its controller in the base and costs about 47% less. The UR3e repeats more tightly, is slightly faster and has a full industrial feature set.
Quick verdict. The RealMan RM63 is the better choice for long-reach light handling on mobile and low-power platforms, with 900 mm reach, a 24 V DC supply and a listed price about 47% lower. The UR3e is the better choice for precise production work, with ±0.03 mm repeatability and a built-in force/torque sensor.
UR3e and RealMan RM63 at a glance
The UR3e carries 3 kg over 500 mm, repeats to ±0.03 mm and weighs 11.2 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 UR3e | RealMan RM63 |
Brand | Universal Robots | RealMan |
Listed price | $33,800 | $17,910 |
Payload | 3 kg | 3 kg |
Reach | 500 mm | 900 mm |
Repeatability | ±0.03 mm | ±0.05 mm |
Axes | 6 | 6 |
Speed | 3 m/s maximum TCP speed | TCP up to 2.8 m/s; joints 1-2: 180°/s; joints 3-6: 225°/s |
Arm weight | 11.2 kg | 10 kg |
IP rating | IP54 | Not specified |
Controller | UR control box CB 5.5 / CB 5.6 | Integrated in the robot base |
Price comparison
UR3e: listed from $33,800
RealMan RM63: listed from $17,910
Difference: $15,890
The RM63 costs roughly 47% less
Reach and speed
Both arms carry 3 kg. The RM63 reaches 900 mm, 400 mm more than the UR3e, and RealMan publishes a 2.8 m/s tool speed against 3 m/s for the UR3e. Light handling across a wide area favors the RM63.
Power and integration
The RM63 runs from 24 V DC at a typical 150 W, houses its controller in a 107 mm base and offers Ethernet, WiFi, RS485 and CAN FD connectivity. That suits mobile robots and battery-powered platforms.
Precision and industrial features
The UR3e publishes ±0.03 mm repeatability against ±0.05 mm for the RM63. It has a built-in ±30 N / ±10 Nm force/torque sensor, IP54, and PROFINET with PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2, with UR+ accessories.
Best applications for the UR3e
Precise benchtop assembly
Force-controlled insertion
Robots inside machines
Best applications for the RealMan RM63
Long-reach light handling
Mobile and battery-powered robots
Research platforms
UR3e advantages
±0.03 mm repeatability
Built-in force/torque sensor
Full industrial feature set
UR3e limitations
About $15,890 higher listed price
500 mm reach
RealMan RM63 advantages
900 mm reach
24 V DC with integrated controller
About 47% lower listed price
RealMan RM63 limitations
±0.05 mm repeatability
Final verdict
Choose the RealMan RM63 for long-reach light handling on mobile platforms. Choose the UR3e for precise production work.
Sources and further reading
Frequently asked questions
Which is cheaper, the UR3e or the RealMan RM63?
The RM63 is listed from $17,910 and the UR3e from $33,800, a difference of $15,890.
Do both robots carry 3 kg?
Yes. Both are rated for 3 kg.
Which robot has the longer reach?
The RM63 reaches 900 mm and the UR3e 500 mm.
Which robot is more precise?
The UR3e publishes ±0.03 mm repeatability and the RM63 ±0.05 mm.
How is the RM63 powered?
It runs from 24 V DC at a typical 150 W, with the controller in its base.
Which robot should I buy?
Choose the RM63 for reach on mobile platforms. Choose the UR3e for precision.
