OVERVIEW
The Dobot CR3A, the entry point to Dobot's CRA series, is a compact collaborative robot (cobot) with 6 joints, a 3 kg payload, and a maximum reach of 620 mm.
What makes the Dobot CR3A special is that you can expect high precision (±0.02 mm) and industrial-level manipulation in a 16.5 kg device with a small footprint, while remaining safe to deploy in tight workspaces. It is designed to deliver a high joint speed of 223°/s and comes with 5 levels of adjustable collision detection and human-contact safety functions.
DOBOT CR3A VARIATIONS
The Dobot CR3A is available in 3 different versions:
- Dobot CR3A: The standard version.
- Dobot CR3AS: Comes with SafeSkin, a contactless collision-detection technology and extra safety measures for efficient human-machine collaboration.
- Dobot CR3AP: IP68 rating. The protected version, built for harsh environments with dust, humidity, water mist, or oil contamination.
DOBOT CR3A ROBOT ARM IS GREAT FOR:
- Lab & research automation: A popular platform for university labs and R&D due to its compact size and open SDK
- Pick & place / packaging: Sorting, kitting, and end-of-line packaging or case packing
- Assembly: Precise fastening, component insertion, and small-parts assembly
- Machine tending: Loading and unloading CNC machines and other equipment
- Dispensing & gluing: Consistent, repeatable dispensing paths
- Quality inspection: Camera-guided inspection and sorting tasks
- Light retail automation: Beverage handling and similar low-payload retail scenarios
DOBOT CR3A FEATURES
- Fast, Efficient Motion: Integrated joints and an advanced motion control algorithm boost cycle times by up to 25% and cut residual vibration by 50% during high-speed emergency stops, with a max TCP speed of 2 m/s
- High Precision: ±0.02 mm repeatability suitable for demanding pick-and-place and assembly work
- Easy Programming, Multiple Ways In: DobotStudio Pro graphical interface, drag-to-teach/hand guiding, Blockly block programming, Lua scripting, and a Python SDK, plus control from PC, tablet, or smartphone
- Built For Integration: Supports Modbus TCP, EtherCAT, EtherNet/IP, Profinet, and Wi-Fi, with 24 I/O ports and dual industrial Ethernet ports for straightforward integration into existing lines
- Dual-Channel End-Effector Design: An industry-first feature on the CR3A that lets it connect directly to multiple end tools
- Strong Safety Foundation: 22 built-in safety functions including 5-level adjustable collision detection, certified to ISO 13849 and TS15066 for safe human-robot collaboration
- 1-Year InDro Warranty & Support
HOW DOES DOBOT CRA SERIES & CR3A WORK?
DOBOT CR3A TECHNICAL SPECIFICATIONS
| Specification | Detail |
| DoF | 6 |
| Payload | 3 kg |
| Reach | 620 mm |
| Repeatability | ±0.02 mm |
| Max. working speed | 3 m/s |
| Joint speed |
J1/J2: 180°/s J3/J4/J5/J6: 223°/s |
| Joint range of motion |
J3: ±155° J1/J2/J4/J5/J6: ±360° |
| End Effector IO |
DI: 2 channels DO: 2 channels AI: 2 channels (Shared with RS485) |
| Max. TCP speed | 2 m/s |
| Weight | 16.5 kg (36.4 lb) |
| Protection rating | IP54 (standard; IP68 available in protected variant) |
| Temperature range | 0~50℃ |
| Power Consumption | 120 W |
| Safety | 22 built-in safety functions, 5-level adjustable collision detection; ISO 13849 & TS15066 certified |
| Communication | Modbus TCP, EtherCAT, EtherNet/IP, Profinet, Wi-Fi, dual industrial Ethernet ports, 24 I/O |
| Programming | DobotStudio Pro, hand guiding/drag-to-teach, Blockly, Lua, Python SDK; API support (C, C#, Python, Kotlin) |
| Installation time | ~20 minutes |
DOBOT CR3A ROBOTIC ARM DIMENSIONS & WORK SPACE
ROBOT CONTROL CABINET CC262 SPECIFICATIONS (CR3A to CR16A)
| CC262 | AC Version | DC Version |
| Input Power Supply | 100~240V, 47~63Hz | 30-60V |
| I/O Power Supply |
24V Max 3A, Max 0.5A per channel |
24V Max 3A, Max 0.5A per channel |
| Dimensions | 345 mm * 345 mm * 145 mm | 345 mm * 345 mm * 145 mm |
| Weight | 9.5 kg | 8.5 kg |
DOBOT CR3A RELEVANT RESOURCES
DobotStudio Pro User Guide (Six-axis Robots)
Dobot Bus Communication Protocol Guide
Comparison of Dobot CRA Models
Dobot CRA series Setup process video
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