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Ideal for assembly of circuit boards and handling of the smallest components, guaranteeing maximum repeat accuracy in the tightest of spaces.
Secure handling of sample containers and pipetting tasks optimizes research workflows through consistent precision and seamless documentation.
Efficient sorting and placement of small parts, the perfect solution for space-constrained automation projects in intralogistics.
Precise guidance of camera systems for automated visual inspection, detecting the smallest defects through stabilized and exact motion sequences.
The ideal entry-level platform for robotics beginners and developers, offering professional industry standards in a compact, accessible format.
Support for deburring or polishing tasks on delicate workpieces, ensuring a consistent surface finish with every pass.
Terra Robotics
https://terra-robotics.de/
mail@terra-robotics.de
Zeißstraße 10,
32584 Löhne
Germany
Axes: 6
Payload: 3 kg
Working radius: 620 mm
Max. reach: 795 mm
Repeatability: ±0.02 mm
Net weight: 16.5 kg
Max. TCP speed: 2 m/s
Protection class: IP54
Operating temperature: 0–50 °C
Axes: 6
Payload: 3 kg
Working radius: 620 mm
Max. reach: 795 mm
Repeatability: ±0.02 mm
Net weight: 16.5 kg
Max. TCP speed: 2 m/s
Protection class: IP54
Addition: SafeSkin pre-collision sensing (5–15 cm, 0.01 s detection, 0.1 s stop)
DOBOT CR3A and CR3AS are compact 6-axis cobots that can be perfectly integrated into confined workspaces thanks to their 620 mm reach and 3 kg payload – for example at assembly stations, test benches, laboratory tables, or in electronics manufacturing. Both models cover typical tasks such as pick-and-place, screwdriving, handling of small components, gluing, and simple palletizing, making them an ideal entry point into collaborative industrial robots.
The CR-A and CRS series offer extensive safety features such as safety zones, virtual walls, load monitoring, and fast safety brakes. The DOBOT CR3AS goes one step further with SafeSkin: obstacles are detected from a distance of just a few centimeters, the robot is automatically slowed down or stopped, and true human-robot collaboration in the same workspace is made possible—without a traditional safety fence.
Both cobots can be integrated into PLC environments, line controllers, and IT systems via common interfaces such as TCP/IP, Modbus, Ethernet/IP, PROFINET, and RS485. Numerous digital and analog inputs/outputs on the robot and controller allow for the direct connection of grippers, suction cups, sensors, or vision systems – ideal for scalable automation cells that can be expanded step by step.
CR3A and CR3AS are part of the larger DOBOT CR and CRS series and are therefore compatible with accessories such as grippers, vision kits, linear rails, and software tools. Companies can start with a single cobot and later expand the same platform to include more robots, additional axes, or complete production cells – all the way up to complex palletizing, assembly, or testing applications.
The Dobot CR3A is suitable for light industrial automation tasks such as pick-and-place, sorting, assembly, screwing, gluing, dispensing, packaging, labeling, quality inspection, and small machine tending. Terra Robotics positions the Dobot CR3A specifically for electronics manufacturing, laboratory automation, precision engineering, medical technology, logistics, and e-commerce fulfillment.
The Dobot CR3A is a compact 6-axis cobot from Dobot for modern manufacturing, laboratory automation, and precise handling tasks. With a 3 kg payload, a 620 mm reach, and high repeatability, this collaborative robotic arm is suitable for companies looking to automate repetitive manual tasks without building large robot cells.
The Dobot CR3A is the series' compact base cobot. The Dobot CR3AS uses the same mechanical and control foundation, but adds SafeSkin as an intelligent pre-collision detection system. This allows the CR3AS to detect people or objects in the immediate vicinity at an early stage, reduce or stop its movement, and makes it particularly interesting for workstations with close human-robot collaboration.
Key technical specifications of the Dobot CR3A include 6 axes, a 3 kg payload, 620 mm working radius, 795 mm maximum reach, ±0.02 mm repeatability, 16.5 kg dead weight, 2 m/s maximum TCP speed, IP54 protection class, and an operating temperature range of 0 to 50 °C. These values make the cobot particularly suitable for precise small-part and laboratory processes.
The Dobot CR3A is of interest for electronics manufacturing and precision engineering because it can move, position, and inspect small components with high repeatability. Typical applications include PCB assembly, small parts handling, screwdriving processes, gluing, dispensing, optical inspection, and loading test benches in confined spaces.
In laboratory automation, the Dobot CR3A can take over repetitive handling steps such as moving sample containers, loading small devices, guiding tools or cameras, and supporting standardized analysis workflows. Due to its compact design, the robotic arm is particularly suitable for laboratory benches, test rigs, and automated research processes with limited space.
The Dobot CR3AS expands the classic safety functions of the CR-A series with SafeSkin pre-collision sensing. This technology detects conductive objects and people in the immediate vicinity of approximately 5 to 15 cm, reacts within milliseconds, and can slow down or stop the cobot before contact occurs. This is particularly relevant for collaborative assembly stations without a traditional safety fence.
The Dobot CR3A can be integrated into existing PLC, line control, SCADA, MES, or ERP environments via interfaces such as TCP/IP, Modbus, Ethernet/IP, PROFINET, and RS485. In addition, digital and analog inputs and outputs can be used for grippers, suction cups, sensors, vision systems, conveyor technology, or test benches.
Depending on the project, the Dobot CR3A can be expanded with suitable accessories such as grippers, suction cups, vision kits, camera systems, sensors, linear rails, conveyor technology, palletizing stations, or software tools. This allows Terra Robotics to plan a customized automation cell for assembly, testing, laboratory, packaging, or logistics tasks using the compact cobot.
The Dobot CR3A can be purchased, leased, or requested as a customized project solution from Terra Robotics. A purchase is suitable for companies that intend to use the cobot permanently. Leasing offers predictable monthly costs and preserves liquidity, while a project inquiry is particularly useful for gripper selection, vision systems, PLC integration, training, installation, maintenance contracts, and scalable cobot automation.
With the collaborative robots DOBOT CR3A and DOBOT CR3AS, companies are addressing the increasing demand for flexible, easily integrated industrial robots for assembly, handling, and logistics. Both cobots offer a 3 kg payload, a working radius of 620 mm, and a repeatability of ±0.02 mm – ideal for precise pick-and-place tasks, loading assembly lines, or automated quality control.
As compact 6-axis robot arms, the CR3A and CR3AS can be installed on tables, workbenches, machines, or in cells without occupying much space. Companies can start with a single collaborative robot and later expand the Dobot platform with additional cobots, peripherals, and software – from simple handling tasks to complex industrial robot solutions for production, warehousing, and intralogistics.
The essential difference between the DOBOT CR3A and CR3AS lies in the SafeSkin technology. While the CR3A operates as a classic cobot with the extensive safety functions of the CR-A series, the CR3AS additionally integrates an intelligent silicone skin with pre-collision detection. SafeSkin monitors the space around the robot, detects conductive objects – especially humans – at a distance of just a few centimeters, and triggers a speed reduction or a stop within milliseconds.
For companies, this means true human-robot collaboration in the same workspace without necessarily relying on classic safety fences. Typical application scenarios include collaborative assembly stations, loading test benches, flexible picking stations in e-commerce, or cobots and workers performing tasks together on a line. The CR3AS is particularly suitable for industries with high safety requirements, such as medical technology, electronics manufacturing, pharmaceuticals, laboratory automation, or precision mechanics.
The DOBOT CR3A and CR3AS models are designed to automate recurring manual activities and relieve employees of monotonous tasks. Typical applications include:
Thanks to their high repeatability and IP54 protection, the CR3A and CR3AS can be used reliably in industrial environments – from electronics assembly to precision mechanical assembly manufacturing. Through suitable grippers, suction cups, or vision systems, the collaborative robot becomes an individual workstation for manufacturing, laboratories, or logistics.
A key argument for the DOBOT CR3A and CR3AS cobots is their easy integration into existing systems and IT structures. Via TCP/IP, Modbus, Ethernet/IP, PROFINET, and RS485, the cobots can be connected to PLC systems, SCADA solutions, and MES/ERP environments. Numerous digital and analog I/Os on the robot and in the controller allow for the direct control of grippers, valves, sensors, or conveyor lines.
With the DobotStudio Pro software, various programming levels are available: drag-and-drop flows for simple sequences, graphical workflows for commissioning and tests, script environments, and APIs for integrators and software teams. This allows both beginners and experienced automation experts to quickly put the CR3A or CR3AS into operation. In combination with digital twins, simulation, and templates for standard applications, new projects can be implemented significantly faster.
Another advantage of the Dobot CR and CRS series is scalability. Those who start with a single CR3A or CR3AS can later expand the same platform via:
into complete automation solutions. This creates networked robot cells for production, warehousing, laboratories, or e-commerce that grow with demand. In conjunction with service robots, cleaning robots, or humanoid robots, end-to-end scenarios can be built – from automated manufacturing and internal transport to robot-assisted inspection and cleaning.
For many companies, implementation is just as crucial as the robotics hardware itself. A partner like Terra Robotics supports the selection of the appropriate cobot variant (CR3A or CR3AS), the layout of the application area, the choice of grippers and accessories, the integration into existing systems, as well as training and service. Through models such as purchase, leasing, or Robot-as-a-Service, the CR3A and CR3AS can be flexibly integrated into investment and operating cost structures.
Companies already working with service robots, cleaning robots, or mobile industrial robots can use collaborative robots like the DOBOT CR3A/CR3AS to further automate production and logistics processes. Typical combinations include, for example, industrial robots for assembly and picking, service robots for in-house transport, and cleaning robots for halls and traffic areas. This creates a fully automated environment where humans, cobots, and mobile robots work together.
