Rainbow Robotics RB3-730 Review: Specs, Price and Applications of the 3 kg Collaborative Robot
Updated: 2 days ago
The Rainbow Robotics RB3-730 is a 6-axis collaborative robot with a maximum payload of 3 kg, a reach of 730 mm and ±0.05 mm repeatability, listed from USD 23,400. This review covers its full specifications, design, programming options, applications and price, so you can decide whether it fits your automation project.
Quick Verdict
The Rainbow Robotics RB3-730 is a 6-axis collaborative robot with a payload of 3 kg, a reach of 730 mm and a repeatability of ±0.05 mm. The arm weighs 11 kg, has a Ø128 mm base footprint and can be mounted in any orientation. Its compact, lightweight build suits small-part assembly, inspection, dispensing, education and research. The RB series is CE, KC and TÜV SÜD certified and designed for collaborative operation per ISO/TS 15066. It is listed from USD 23,400.
Rainbow Robotics RB3-730 at a Glance
Maximum payload: 3 kg
Reach: 730 mm
Axes: 6
Repeatability: ±0.05 mm
Speed: Joint speeds: J1 to J4 180°/s, J5 and J6 360°/s
Weight: : 11 kg
Controller: Rainbow Robotics CB07 small robot control box
Price: from USD 23,400
Rainbow Robotics RB3-730 Technical Specifications
The table below lists the published specifications of the Rainbow Robotics RB3-730.
Specification | Rainbow Robotics RB3-730 |
Manufacturer | Rainbow Robotics |
Model | RB3-730 |
Robot type | 6-axis collaborative robot |
Maximum payload | 3 kg |
Reach | 730 mm |
Axes | 6 |
Repeatability | ±0.05 mm |
Speed | Joint speeds: J1 to J4 180°/s, J5 and J6 360°/s |
Controller | Rainbow Robotics CB07 small robot control box |
Interfaces | Ethernet (TCP/IP, Modbus TCP), EtherNet/IP, PROFINET, OPC UA, digital and analog I/O |
Certifications | CE, KC, TÜV SÜD certified, collaborative operation per ISO/TS 15066 |
Starting price | From USD 23,400 |
Detailed Technical Data
Weight: 11 kg
Base footprint: Ø128 mm
Mounting: any orientation
Axes: 6
Design and Build Quality
The RB3-730 is a 6-axis collaborative robot made by Rainbow Robotics. Published build data: Weight: 11 kg; mounting: any orientation.
Programming and Software
Controller and Software
Published controller for the RB3-730: Rainbow Robotics CB07 small robot control box. Programming interfaces, software licences and simulation tools vary by package, so confirm what is included before ordering.
Industrial Communication
Published interfaces are Ethernet (TCP/IP, Modbus TCP), EtherNet/IP, PROFINET, OPC UA, digital and analog I/O.
Rainbow Robotics RB3-730 Applications and Use Cases
Typical applications for the RB3-730 are machine tending, assembly, inspection, education, research, packaging and dispensing.
Machine tending
The RB3-730 loads and unloads machine tools, presses and moulding machines within its 730 mm reach.
Assembly
Repeatability of ±0.05 mm supports fitting, inserting and fastening parts in assembly cells.
Inspection
The RB3-730 presents parts to cameras and gauges, or carries the sensor to the part.
Rainbow Robotics RB3-730 Price and Value
The Rainbow Robotics RB3-730 is listed from USD 23,400 on All Things Cobots. The controller, end effectors, safety equipment and integration affect the final price and are quoted separately. Prices are indicative, are not final and may change.
Pros and Cons
Pros
3 kg maximum payload with a 730 mm reach
±0.05 mm repeatability
Speed: Joint speeds: J1 to J4 180°/s, J5 and J6 360°/s
Collaborative design for work near people, subject to a risk assessment
Cons
The 3 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Rainbow Robotics RB3-730?
The Rainbow Robotics RB3-730 fits manufacturers that want a robot working near people without full fencing, subject to a risk assessment.
See the full Rainbow Robotics RB3-730 product listing on All Things Cobots.
Rainbow Robotics RB3-730 FAQ
How much does the Rainbow Robotics RB3-730 cost?
The Rainbow Robotics RB3-730 is listed from USD 23,400 on All Things Cobots. The price is indicative and may change, and it does not include end effectors, safety equipment or integration.
What is the payload and reach of the Rainbow Robotics RB3-730?
The RB3-730 has a maximum payload of 3 kg and a reach of 730 mm.
How accurate is the Rainbow Robotics RB3-730?
Its published repeatability is ±0.05 mm.
How many axes does the Rainbow Robotics RB3-730 have?
The RB3-730 has 6 axes.
How is the Rainbow Robotics RB3-730 programmed?
Programming is done with Rainbow Robotics's own software. Confirm the included interfaces and SDKs with the supplier.
Which controller does the Rainbow Robotics RB3-730 use?
Published controller: Rainbow Robotics CB07 small robot control box.
How much does the Rainbow Robotics RB3-730 weigh?
Published weight: 11 kg.
How can the Rainbow Robotics RB3-730 be mounted?
Published installation options: : any orientation.
Is the Rainbow Robotics RB3-730 a collaborative robot?
Yes. The RB3-730 is a collaborative robot. Every collaborative application still needs its own risk assessment.
What is the Rainbow Robotics RB3-730 used for?
Typical applications are machine tending, assembly, inspection, education, research, packaging and dispensing.
Specifications and prices are based on manufacturer and distributor information. Prices are indicative, are not final and may change.
