DOBOT CR20AF | 20kg Force-Controlled Cobot
• 20kg payload and 1300mm reach with integrated 6-axis flange force sensor — highest payload in the CRAF series
• Constant force automatic compensation ensures flawless heavy-duty grinding, polishing, and precision welding
• Ultra-low drag-start force under 2N for full-flange drag teaching achieving 0.1mm point-to-point positioning accuracy
• Force-sensing collision detection (1N sensitivity) with 2000N impact resistance for safe high-payload collaboration
• Ring status light on flange provides real-time robot state visibility with press-to-drag teaching button
- Trusted dealerDirect manufacturer partnership
- Pan-India deliveryInsured shipping, all states
- Post-sale supportTraining + service included
What makes it work
DOBOT CR20AF
The most powerful force-controlled cobot in the CRAF lineup — 20 kg payload, 1300 mm reach, and an integrated 6-axis force sensor delivering precision force control for the most demanding heavy-duty applications.
The Next Generation of Force-Controlled Cobots
Designed for the most demanding high-end manufacturing applications — including precision heavy-part assembly, complex grinding, automotive body finishing, and industrial automation — the DOBOT CR20AF represents the pinnacle of the CRAF series. Integrating a high-precision 6-axis force sensor at the flange end, it delivers intelligent compliant force control through proprietary algorithms without any external add-ons. Built on the proven CRA series platform, the CR20AF combines a 20 kg payload and 1300 mm working radius with plug-and-play operability, enabling adaptive force applications and seamless human-robot collaboration at maximum load. The non-occupying end interface design ensures all tool-side RS485 and I/O ports remain fully available for external devices such as grippers or the VX500 Smart Camera — making it the most capable force-controlled cobot in the CRAF lineup. Available in AC Edition (Standard) and DC Edition (Mobile).
Unmatched Compliance and Precision
All-in-One Force Control at Maximum Payload
Integrated 6-Axis Force Sensor at the Flange
The CR20AF integrates a high-precision 6-axis force sensor directly at the flange end, enabling compliant force control and precise operation at the heaviest payload in the CRAF series without any external add-ons. With 500% F.S. overload protection, 1% F.S. accuracy, and 0.5% F.S. precision, the sensor delivers the tactile intelligence required for demanding automotive finishing, large-part polishing, and heavy-duty industrial assembly — operations that require sustained controlled contact force at high load.
Flange Ring Status Light and Drag Button
The CR20AF features a ring status light on the flange for real-time robot state visibility, allowing operators to instantly recognise the current operating mode without consulting the controller. A dedicated press-to-drag button at the flange makes teaching intuitive: the entire flange surface serves as an active drag zone for one-handed guidance through complex paths. Orientation-locked dragging further constrains path programming to specific axes — enabling repeatable, precise teaching even when handling the largest and heaviest workpieces.
Non-Occupying End Interface
The CR20AF's integrated sensor design does not occupy any tool-side RS485 or I/O ports. The end-effector interface provides 2 DI channels, 2 DO channels, and 2 AI channels shared with RS485 — all fully available for external devices such as electric grippers, vacuum systems, or the DOBOT VX500 Smart Camera. Deploying force control capability at 20 kg payload introduces zero port trade-offs, keeping the robot's full integration flexibility intact for complex production line architectures.
Six Force-Control Capabilities in Action
From smooth hand-guided teaching at maximum payload to sub-millimetre blind-touch positioning, the CR20AF demonstrates proprietary force intelligence across every heavy-duty interaction.
Six Features That Define the CR20AF
DOBOT CR20AF — Complete Specification
| Specification | Details |
|---|---|
| Weight | 59 kg |
| Maximum Payload | 20 kg |
| Working Radius | 1300 mm |
| Maximum Linear Speed | 2 m/s |
| Joint Range of Motion | |
| J1 / J2 / J4 / J5 / J6 | ±360° |
| J3 | ±160° |
| Maximum Joint Speed | |
| J1 / J2 / J3 | 180° /s |
| J4 / J5 / J6 | 223° /s |
| End-Effector I/O | |
| DI | 2 Channels |
| DO | 2 Channels |
| AI | 2 Channels (shared with RS485) |
| RS485 | Supported |
| Repeatability | ±0.02 mm |
| IP Rating | IP54 |
| Temperature Range | 0° ~ 50° C |
| Power Consumption | 400 W |
| Installation Method | Upright Installation |
| Cable Length | 5 m |
| Materials | Aluminum Alloy, ABS Plastic |
Application Scenarios
The CR20AF's 20 kg force intelligence opens heavy-duty applications requiring precise compliant contact at payloads no other CRAF model can address.
See the CR20AF at Work
Common Questions About the CR20AF
What is the maximum payload and working radius of the DOBOT CR20AF?
The DOBOT CR20AF supports a maximum payload of 20 kg and has a working radius of 1300 mm. It is the highest-payload model in the CRAF series, designed for heavy-duty force-controlled tasks including large-part assembly, automotive body grinding, surface polishing, and industrial loading operations that exceed the capacity of the CR10AF.
How does the CR20AF compare to the CR10AF?
The CR20AF offers double the payload at 20 kg versus 10 kg on the CR10AF, while sharing the same 1300 mm working radius. The CR20AF weighs 59 kg versus 40.5 kg and draws 400 W versus 350 W. The CR20AF also achieves ±0.02 mm repeatability compared to ±0.03 mm on the CR10AF, making it more precise despite its higher load capacity. Both models share the same CRAF series force control capabilities, upright installation requirement, and non-occupying end interface design.
Does the integrated force sensor use up the end-effector I/O ports?
No. The CR20AF uses a non-occupying end interface design — the force sensor does not consume any tool-side RS485 or I/O ports. The end-effector interface remains fully available with 2 DI channels, 2 DO channels, and 2 AI channels shared with RS485, ensuring compatibility with external devices such as electric grippers or the DOBOT VX500 Smart Camera.
How sensitive is the drag-teaching function on the CR20AF?
The CR20AF has an ultra-low drag-start force of less than 2 N, meaning the robot can be guided through complex paths with minimal physical effort regardless of its 20 kg payload capacity. This enables 0.1 mm point-to-point teaching accuracy. Orientation-locked dragging is also available to constrain motion to specific axes during path programming.
What installation orientation does the CR20AF support?
The DOBOT CR20AF supports upright installation only. Like all CRAF series models, this differs from the standard CRA series which supports any-angle mounting. The upright installation requirement should be accounted for during workcell design and layout planning.
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