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The IP68-rated cobots reliably automate machine tools even in the presence of cooling lubricants, oil mist, metal chips, and high humidity.
The dust-proof and splash-proof design is suitable for material-intensive processes involving abrasive dust, particles, and water or oil splashes.
High environmental protection and a reach of up to 1,700 mm support reproducible welding paths in work areas with metal particles and moisture.
The cobots guide dispensing and bonding tools precisely along defined contours and remain usable even in damp or dirty production areas.
With a load capacity of 5 to 20 kg, the series handles the gripping, reorienting, and transporting of workpieces, containers, and components between production stations.
The series is designed for high humidity, water mist, and frequent cleaning cycles – subject to application-specific hygiene and safety requirements.
The Dobot CRAP series sets entirely new standards for the use of collaborative robots in extremely demanding and harsh industrial environments. Specially developed for manufacturing processes with high levels of moisture, dust, or chemical exposure, this model series combines uncompromising industrial strength with intuitive handling. With payloads from 5 kg to 20 kg and reaches of up to 1700 mm, you can automate processes such as wet grinding, cleaning, welding, or material handling with absolute process reliability. Protect your investment for the long term and boost your productivity to a new level – without the need for expensive additional covers.
| Feature | DOBOT CR5AP | DOBOT CR10AP | DOBOT CR20AP |
|---|---|---|---|
| Payload | 5 kg | 10 kg | 20 kg |
| Working radius (reach) | 900 mm | 1300 mm | 1700 mm |
| Net weight | 25 kg | 40 kg | 70 kg |
| Repeatability | ±0.02 mm | ±0.03 mm | ±0.05 mm |
| Max. linear speed | 2 m/s | 2 m/s | 2 m/s |
| Max. joint speed | J1–J3: 180°/s J4–J6: 223°/s |
J1–J2: 150°/s J3: 180°/s J4–J6: 223°/s |
J1–J2: 120°/s J3: 150°/s J4–J6: 180°/s |
| Range of motion (axes) | J1, J2, J4–J6: ±360° J3: ±160° |
J1, J2, J4–J6: ±360° J3: ±160° |
J1, J2, J4–J6: ±360° J3: ±165° |
| Tool I/O interfaces | 2× AI, 2× DO, 2× DI (Multiplexed with RS485) | 2× AI, 2× DO, 2× DI (Multiplexed with RS485) | 2× AI, 4× DO, 4× DI (Multiplexed with RS485) |
| Protection rating / noise level | IP68 / ≤ 70 dB | IP68 / ≤ 70 dB | IP68 / ≤ 70 dB |
| Power consumption / cable length | 150 W / 5 m control cable | 350 W / 5 m control cable | 500 W / 6 m control cable |
| Operating temperature / material | 0°C – 50°C / aluminum alloy, ABS | 0°C – 50°C / aluminum alloy, ABS | 0°C – 50°C / aluminum alloy, ABS |
| Mounting position | Any angle | Any angle | Any angle |
Benefit for professionals: By choosing the Dobot CRAP series, you are opting for extremely resistant cobots that operate with low maintenance and absolute precision, even under the strictest IP68 requirements. You will reduce downtime in demanding production environments to a minimum and secure a future-proof automation solution with an excellent ROI.
Terra Robotics
https://terra-robotics.de/
mail@terra-robotics.de
Zeißstraße 10,
32584 Löhne
Germany
IP68 protection for demanding environments
The robot arm of the DOBOT CRAP series has an IP68 protection rating and was developed for production areas with dust, high humidity, water mist, and oily residues. The protective effect was verified according to IEC 60529 in a 72-hour SGS test. The associated control cabinet is protected to IP54. However, the series is not intended for continuous submerged operation.
Oil-resistant and internally pressurized
External plastic components made of fluororubber offer high chemical stability and corrosion resistance against oil and cooling lubricants. An internal pneumatic system generates positive pressure within the robot, thereby reinforcing the seal. This makes the series particularly suitable for CNC loading, cutting, grinding, and other processes involving particles, liquid splashes, or oily environments.
CR5AP · CR10AP · CR20AP
The series includes the compact CR5AP with a 5 kg payload and 900 mm reach, the versatile CR10AP with 10 kg and 1,300 mm, and the CR20AP with a 20 kg payload and 1,700 mm working radius. All models achieve a maximum linear speed of 2 m/s. The repeatability is between ±0.02 and ±0.05 mm, depending on the model.
Proven CRA operation
The CRA-IP68 series supports drag-to-teach, graphical programming, and code-based development. This allows for the implementation of simple motion sequences as well as individually programmed automation processes. Tool-side I/O and communication ports enable the integration of suitable grippers, sensors, and process tools for various industrial applications.
The DOBOT CRAP series is referred to by the manufacturer as the CRA-IP68 series. It consists of 6-axis collaborative robotic arms with enhanced protection against dust, moisture, water mist, and oily contaminants. The series includes the CR5AP, CR10AP, and CR20AP models.
The series includes the CR5AP with a 5 kg payload and 900 mm reach, the CR10AP with 10 kg and 1,300 mm, and the CR20AP with a 20 kg payload and 1,700 mm working radius. The appropriate variant depends on the workpiece, end effector, and required working range.
IP68 stands for a very high level of protection for the robot arm against the ingress of dust and water under defined test conditions. DOBOT had the protective effect verified according to IEC 60529 in a 72-hour SGS test. End effectors, cables, and other system components require their own appropriate protection class.
No. DOBOT explicitly points out that, despite its IP68 rating, the series is not designed for long-term submerged operation. Specific conditions involving splashed water, water mist, cleaning, or constant humidity must be technically evaluated prior to integration.
The CRA-IP68 series adopts the performance and programming capabilities of the CRA platform, but supplements them with reinforced sealing. This includes an IP68-rated robotic arm, oil-resistant exterior components, internal pressurization, and an IP54-protected control cabinet.
Yes. CNC loading and unloading is among the intended applications. The series is designed for environments involving cooling lubricants, oil mist, metal chips, and high humidity. However, grippers, workpieces, and machine communication must still be configured on a project-specific basis.
The dust-proof design is explicitly intended for dust-intensive processes such as cutting and grinding. For reliable operation, the tool, extraction system, cable routing, and other components must also be protected against the particles and media involved.
According to DOBOT, the outer plastic components are made of chemically stable and corrosion-resistant fluoroelastomer. This makes the series better suited for oily environments and contact with cooling lubricants than a standard cobot without comparable environmental protection.
The cobots support drag-to-teach, graphical programming, and code-based development. Movements can be taught manually or set up via software. For full system integration, the end effector, process parameters, machine communication, and safety logic are additionally configured.
The robots are designed for collaborative automation. Whether operation without a safety fence is permissible, however, depends on speed, tool, workpiece, process, and working environment. Cutting, grinding, or welding processes often require additional protective measures and always a complete risk assessment.
The DOBOT CRAP series, officially designated as the CRA-IP68 series, was developed for automation in demanding environmental conditions. While standard cobots often have limited protection against dust, water mist, or oily residues, the CR5AP, CR10AP, and CR20AP models feature an IP68-protected robot design. This makes them particularly suitable for metalworking, CNC machine tending, grinding, cutting, welding, and other processes with high exposure to dust, moisture, or oil.
The CR5AP moves up to 5 kg and offers an operating radius of 900 mm. It is especially suitable for compact stations, fast pick-and-place processes, and the machining of smaller workpieces. The CR10AP combines a 10 kg payload with a 1,300 mm reach, covering numerous tasks in machine tending, handling, and production. For larger components, the CR20AP is available with a 20 kg payload and a 1,700 mm operating radius.
All three models reach a maximum linear speed of 2 m/s. Depending on the variant, the repeatability ranges between ±0.02 and ±0.05 mm. The payload includes not only the workpiece but also grippers, adapters, sensors, and other components mounted on the flange. Selection should therefore be based on the complete tool configuration.
According to DOBOT, the IP68 protection rating of the robot arm was tested by SGS in a 72-hour test according to IEC 60529. As a result, the series is designed for high humidity, dust, and water mist. The control cabinet additionally has an IP54 protection rating. However, a clear distinction is important: DOBOT explicitly states that the robots are not suitable for long-term operation underwater.
The other components of a robot cell must also be appropriately protected. An IP68 robot arm alone does not automatically make a standard gripper, camera, or an unprotected cable connection water- or dust-resistant. Therefore, all end-effectors, sensors, cables, and connection components used should be checked against the actual load before the project starts.
For machining environments with oil and cooling lubricants, DOBOT uses fluororubber for the outer plastic components. This material has high chemical stability and corrosion resistance. In addition, the series features an internal pneumatic system. Pressurization creates positive internal pressure, which supports the sealing of the robot.
This design is particularly relevant for CNC machines, machining centers, and processes involving oil mist or liquid splashes. Nevertheless, the media, concentrations, temperatures, and cleaning procedures used must be verified before integration.
In automated CNC machine tending, the cobot picks up raw parts, inserts them into the machine, and removes the machined components after the process is complete. Oil mist, cooling lubricants, and metal chips place high demands on the robotics used. The CRA-IP68 series was specifically developed for such working conditions.
For a reliable process, gripping points, workpiece positioning, machine doors, clamping devices, and communication must be coordinated. You can find more information on suitable applications on our page regarding assembly and handling.
Grinding and cutting generate fine particles and abrasive residues that can penetrate seals or joints in unprotected robots. The dust-tight design of the CRA-IP68 series is specifically geared toward such applications. Depending on the tool and workpiece, the robot can reproducibly follow defined paths, thereby automating manually strenuous tasks.
For a complete solution, extraction, tool mounting, process force, and cable management must also be planned. Suitable end-effectors and other components can be found in the DOBOT accessories section.
DOBOT lists welding, bonding, and loading/unloading or transport as further application scenarios. With a 20 kg payload and 1,700 mm reach, the CR20AP offers sufficient workspace for larger components and long motion paths. The CR5AP and CR10AP, on the other hand, are suitable for more compact cells or lower tool loads.
In welding applications, IP68 does not protect the robot from all process risks. Sparks, heat, smoke, and welding spatter require a complete safety and protection concept. The same applies to dangerous cutting tools or chemical media.
The CRA-IP68 series adopts the well-known operating options of the CRA platform. These include drag-to-teach, graphical programming, and code-based development. The increased environmental protection does not restrict basic operability. Movements can be taught manually and then supplemented with process signals, tool control, and machine communication.
Further DOBOT cobot series and automation solutions can be found on our DOBOT manufacturer page.
Before selecting, payload, reach, environmental media, temperature, cleaning processes, tools, and safety requirements should be evaluated. A proof of concept with real workpieces and actual media will show whether grippers, seals, and motion sequences are suitable for long-term use.
Terra Robotics provides support in choosing between the CR5AP, CR10AP, and CR20AP, as well as with gripping technology, system layout, and technical integration. For a concrete feasibility check, you can describe your process via the contact form for robotics projects.
