CobotsRainbow RoboticsCommercially available

Rainbow Robotics RB-serie

Name: Rainbow Robotics RB-serie
Brand: Rainbow Robotics

Broad cobot series from 3 to 30 kg payload, with components developed in-house.

The RB series is the cobot line of Rainbow Robotics, a company that grew out of the development of the HUBO humanoid. The series runs from a light 11 kg arm with 3 kg payload to models with 30 kg payload. According to the manufacturer, in-house core components make the series reliable and competitively priced; that is a manufacturer claim. Applications include assembly, inspection, welding, machine tending and palletising.

Status 2026

Commercially availableThis model is listed as commercially available. Delivery, configuration and support vary by supplier and region.

Ask about availability Compare alternatives

Type: Cobots
Origin: South Korea
Deployment: Not confirmed
Region: International
Applications: 4 applications
Models: 10

InteractionCollaborative robot arm
Built to work alongside people, after a risk assessment of the application.
Modular10 models
From RB3-730 to RB30-1400, see the model table.
ModularCobot series
In the cobots category.

Payload: 3 to 30 kg
Reach: 730 to 1,900 mm
Weight: 11 to 75 kg

Values as recorded on the robot profile, generally based on manufacturer information. Configuration and operating conditions can change the figures; confirm them with the supplier.

What is Rainbow Robotics RB-serie?

Rainbow Robotics RB-serie is a series of collaborative robot arms from Rainbow Robotics from South Korea, listed for assembly, machine tending and palletising. Key figures: payload 3 to 30 kg, reach 730 to 1,900 mm, weight 11 to 75 kg. Market status: commercially available. Availability and deployment options should be confirmed with a supplier. Robotleasen does not sell robots; it helps businesses compare suppliers and recorded information.

How does it compare with other collaborative robot arms?

We compare each value with the other collaborative robot arms in our guide for which it is known. Typical is the middle half. Values according to the manufacturers; caveats are noted with the key figures at the top.

Working reach, viewed from above

Payload30kg
High for a collaborative robot arm
Of the 203 others, 9 carry more, 19 the same and 175 less.
Typical: 5 to 18 kg
Weight75kg
Heavy for a collaborative robot arm
Of the 133 others, 18 are heavier, 1 the same weight and 114 lighter.
Typical: 16.5 to 45 kg
Reach1,900mm
Long reach for a collaborative robot arm
Of the 198 others, 11 reach further, 2 as far and 185 less far.
Typical: 800 to 1,522 mm

Application

What was RB-serie developed for?

Assembly
Machine tending
Palletising
Welding

Business fit

When might RB-serie be a fit?

An initial view based on the recorded category and model information

May be suitable for

Organisations assessing a robot for a defined task and work environment.
Teams comparing the robot's recorded profile with other options.
Businesses that want to validate the application and integration requirements.

Considerations

Confirm capabilities and current availability with the manufacturer or supplier.
Check the work environment, integration needs and local support before selecting a model.

Facts

Did you know?

Notable facts about RB-serie, its manufacturer and this type of robot

The RB-serie comes in 10 models, with a payload from 3 kg to 30 kg.
2008
The first commercially sold cobot was a UR5 from Universal Robots, in December 2008.
Source: Universal Robots, company history
A cobot's payload includes the gripper. A 1 kg gripper on a 5 kg cobot leaves 4 kg for the product.
The safety rules for cobots are set out in ISO 10218 and ISO/TS 15066. The latter gives limit values for contact force per body part.
Source: ISO/TS 15066

Video

RB-serie in action

Source: Rainbow Robotics

View video at source

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Models

Which RB-serie model is right for you?

Compare payload (product plus gripper) and reach first. Values are from the manufacturer.

Model	Payload	Reach	Weight
RB3-730	3 kg	730 mm	11 kg
RB3-1200	3 kg	1,200 mm	22.4 kg
RB5-850	5 kg	927.7 mm	22 kg
RB6-920	6 kg	920 mm	21 kg
RB6-1700	6 kg	1,700 mm	39 kg
RB10-1300	10 kg	1,300 mm	36.5 kg
RB16-900	16 kg	900 mm	35.5 kg
RB20-1800	20 kg	1,800 mm	70.5 kg
RB20-1900	20 kg	1,900 mm	75 kg
RB30-1400	30 kg	1,400 mm	71 kg

Market and supply

Is RB-serie available?

A profile status is not a confirmed offer or delivery time

What is settled?

Checked 27 September 2026

Market status
Commercially available
The model is on sale; you can request it from a supplier.
confirmed
Region
Not confirmed for the Netherlands
Not known whether it is supplied in the Netherlands. Ask a supplier.
not confirmed
Lease / RaaS
Not confirmed
No supplier has confirmed lease or robot-as-a-service.
not confirmed
Rental
Not confirmed
No supplier has confirmed rental.
not confirmed

1 of 4 settled. The rest depends on the supplier.

Ask about availability

Manufacturer

Rainbow Robotics

South Korean robotics manufacturer originating from the humanoid HUBO and now supplying cobots, mobile robots, quadruped robots and mobile dual-arm robots.

International7 robot profiles in the directory

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OUR INTERPRETATION

Our perspective on RB-serie

Lease or rent

Can you lease this robot?

Leasing options for this model are not in our data. Ask the supplier about leasing, rental or Robot-as-a-Service, or use our request page for advice.

Request advice

Compare

Compare RB-serie with alternatives

Open comparison overview

Feature	RB-serieRainbow Robotics · this robot	UR10eUniversal Robots	M-serieDoosan Robotics	UR20Universal Robots
Market status	Commercially available	Commercially available	Commercially available	Commercially available
Application	Assembly, Machine tending	Machine tending, Packaging	Machine tending, Assembly	Palletising, Welding
Deployment	Not confirmed	Not confirmed	Not confirmed	Not confirmed
Region	International	Netherlands	International	International
Difference	—	Different application: packaging	Different application: packaging	Compare applications and suppliers
Link		View robot	View robot	View robot

Frequently asked questions

Questions about RB-serie

What is the Rainbow Robotics RB-serie?

What are the specifications of the Rainbow Robotics RB-serie?

Key figures: payload 3 to 30 kg, reach 730 to 1,900 mm, weight 11 to 75 kg. Values as recorded on the robot profile, generally based on manufacturer information. Configuration and operating conditions can change the figures; confirm them with the supplier.

Which supplier is listed for the Rainbow Robotics RB-serie?

Rainbow Robotics RB-serie is listed under Rainbow Robotics, based in South Korea. Check local sales and support terms directly with the supplier.

Is the Rainbow Robotics RB-serie available to buy or lease in the Netherlands?

Commercially available. Deployment: not confirmed. Whether this model is available to buy, rent or lease in the Netherlands depends on the supplier. Ask a supplier to confirm current availability.

How much does the Rainbow Robotics RB-serie cost?

No reliable public price is listed for this model. Costs depend on configuration and supplier. Ask a supplier for price information

What is the Rainbow Robotics RB-serie used for?

The applications listed for the Rainbow Robotics RB-serie include assembly, machine tending, palletising and welding.

What are alternatives to the Rainbow Robotics RB-serie?

Profiles include Universal Robots UR10e, Doosan Robotics M-serie and Universal Robots UR20. Compare their applications, specifications and market status.

Could RB-serie fit your organisation?

Review the recorded market status, applications and alternatives for this robot. We do not sell robots ourselves, but help you compare suppliers and terms.