ABB GoFa CRB 15000-5 vs DOBOT CR3A: Cobot Comparison
Updated: 9 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Reach figures need careful reading: ABB GoFa CRB 15000-5 lists 950 mm wrist; 1050 mm flange, while DOBOT CR3A lists 620 mm. Check the same tool position and reference point before deciding which robot reaches your fixture. |
→ CONSIDER ABB GoFa CRB 15000-5 Consider it when the stated load suits your task and its exact reach reference matches your layout. This article compares 5 kg with a published reach of 950 mm wrist; 1050 mm flange; include the gripper and part in the load. |
→ CONSIDER DOBOT CR3A Consider it when the stated load suits your task and its exact reach reference matches your layout. This article compares 3 kg with a published reach of 620 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Check the real tool, movement path and safety assessment before choosing. A collaborative label does not make every task safe without guarding; compare complete installation quotes. |
ABB GoFa CRB 15000-5 vs DOBOT CR3A compares two real automation choices with different implications for load, workspace, integration and installed cost. A compact 3 kg alternative is not a 5 kg substitute. This guide uses the individual ATC product reviews as its starting point, with a focus on what the differences mean for an actual production cell.
GoFa 5 and CR3A overlap in light assembly and inspection use cases, but they are different load and workspace classes. ABB is reviewed at 5 kg with 950 mm wrist reach; DOBOT at 3 kg with a 620 mm working radius. A lower price matters only after the complete tool and process fit the smaller robot.
Quick verdict
ABB GoFa CRB 15000-5: Dry small-part assembly and repeatable handling where ABB integration and positioning consistency matter. The entire gripper-and-part load must fit within 5 kg; the indicative starting price is USD 34,000. Its reviewed load rating is 5 kg, published reach is 950 mm wrist; 1,050 mm flange, and stated position repeatability is ±0.02 mm.
DOBOT CR3A: Small-part handling, light assembly and inspection where 3 kg total load and 620 mm radius are sufficient. It cannot substitute for a 5 kg robot when the completed tool-and-part load exceeds 3 kg. Its rated load is 3 kg with a published 620 mm reach or working radius. The indicative starting price used here is USD 16,400.
ABB GoFa CRB 15000-5 vs DOBOT CR3A: technical specifications
Specification | ABB GoFa CRB 15000-5 | DOBOT CR3A |
|---|---|---|
Rated payload | 5 kg | 3 kg |
Published reach / radius | 950 mm wrist; 1,050 mm flange | 620 mm |
Position repeatability | ±0.02 mm | ±0.02 mm |
Arm mass | 28 kg | 16.5 kg |
Arm protection | IP54 | IP54 |
Programming / control | OmniCore C30; RAPID / RobotStudio | DobotStudio Pro |
Indicative starting price | USD 34,000 | USD 16,400 |
Selection emphasis | Dry small-part assembly and repeatable handling where ABB integration and positioning consistency matter. | Small-part handling, light assembly and inspection where 3 kg total load and 620 mm radius are sufficient. |
Figures describe the configurations discussed in the linked product reviews. They are not promises of achieved process accuracy, safe operating speed or complete-cell capability. ABB separately reports wrist and flange reach. Compare the same geometric reference and actual tool pose before treating a nominal reach difference as a usable-workspace advantage.
The engineering tradeoff that matters
The source reviews list ±0.02 mm positioning repeatability for both, so this is not a useful basis for declaring one more repeatable. A 16.5 kg DOBOT arm may be attractive on a compact bench against ABB's 28 kg arm. The payload and reach boundaries, rather than that equal numerical specification, should lead the first screening.
ABB GoFa CRB 15000-5 provides 2 kg more nominal load capacity than DOBOT CR3A. That difference can be consumed by a gripper before the part is added. A 3.5 kg complete attached load already exceeds the smaller robot's 3 kg headline rating; it still needs a load-diagram check on the larger robot. Treat that example as an initial screening calculation, not approval of a specific tool.
For this pair, the reviewed arm masses are 28 kg and 16.5 kg. Include the support frame, anchoring, mounting orientation and handling procedure in the cell design. Arm mass is separate from payload: a heavier robot does not carry that weight as part of its rated tool load. Access to connectors and service points should remain possible after fixtures, machine doors and cable runs are installed.
Workspace: test the approach, not just the endpoint
For a camera inspection or miniature assembly station, include the camera bracket, lighting and cable management in the load model. If the whole process fits the DOBOT, its USD 16,400 starting price deserves evaluation. If a 4 kg loaded tool or a distant fixture is required, it is outside CR3A's headline class regardless of the apparent savings.
Reach studies should include pickup, process, reject and recovery positions with the real tool length. A point inside a robot's nominal radius can still be unusable when orientation, joint limits or an obstacle is considered. Bring the gripper model and machine geometry into simulation or a physical trial, then check the entire transition between stations. Keep hoses and cables clear throughout the motion, particularly at the farthest approach.
ABB GoFa CRB 15000-5: what its design buys you
GoFa 5 targets lighter assembly, screwdriving, inspection and machine-tending work. The review distinguishes 950 mm wrist reach from 1,050 mm flange reach. It offers an ABB programming workflow in a smaller load class, which can suit a dry workstation where tooling and parts fit comfortably within the 5 kg limit.
The 28 kg arm is lighter than the larger GoFa variants, but it still needs an engineered support and a deliberate installation method. IP54 protection should be matched to the actual dust, liquid and cleaning exposure. Do not transfer the IP67 rating of GoFa 10 or GoFa 12 to this model.
DOBOT CR3A: where it earns its place
CR3A is a smaller alternative rather than a like-for-like 5 kg replacement. Its reviewed 3 kg capacity and 620 mm working radius suit a compact bench or short transfer task. A 16.5 kg arm can reduce handling and mounting demands, but the real load budget needs to include every tool component.
DobotStudio Pro supplies the graphical and script programming workflow described in the review. For a small workstation, start with the gripper mass and the farthest approach pose before considering price. A light part can still need a heavy tool, and a nominally compact cell may require more reach to avoid fixtures.
Repeatability, process quality and actual throughput
The two reviews list the same ±0.02 mm positioning repeatability. That is a useful reason to move the evaluation toward process quality, tooling and controller behavior rather than inventing a precision winner. Check the tolerance of the completed operation and use the same acceptance method on both proposed systems.
Maximum or typical speed figures should not be treated as a matched benchmark. The actual cycle includes gripping, confirmation signals, machine dwell, process time and operator access. Ask for a timed sequence with representative products, normal safety settings and fault recovery. Record quality and rejects as well as seconds per cycle: a fast movement that produces rework does not improve useful output.
Programming, interfaces and recovery
The ABB reviews describe OmniCore C30 with RAPID programming and RobotStudio for offline engineering. Existing ABB skills can be valuable if the people who will maintain the station already use that workflow. Confirm the proposed controller revision, programming tools, enabled options and ownership of the application program. The initial teaching demonstration is only one part of a maintainable installation.
The DOBOT reviews describe DobotStudio Pro with graphical programming and scripting. Compare the supplied interface against the tasks the operator and integrator must perform, including recipe changes, backups and diagnostics. The specification's network and I/O list is a starting checklist; enabled protocol options and electrical compatibility need confirmation on the offered controller.
Create an I/O and communication schedule covering the PLC, machine, gripper and any inspection device. Confirm voltage, connector pinout, data direction, timeout behavior and the required licenses or hardware options. A protocol appearing in a review is not proof of plug-and-play compatibility with the intended machine. Make the handshakes visible in the acceptance test and retain the final program backup.
Safety and environmental suitability
A collaborative arm is one component of a risk-assessed application. The tool, workpiece, fixture, machine and operator access can introduce hazards that the arm's collaborative features do not remove. Establish the intended operating modes and validate the actual safeguarding and safety settings. If the required production rate cannot be achieved with those settings, revise the cell concept before ordering the robot.
The reviewed arm protection is IP54 for GoFa 5 and IP54 for CR3A. Check exposure to coolant, dust, cleaning agents and temperature at the actual installation. An ingress rating does not automatically authorize a cleaning chemical or pressure-washing procedure, and it does not extend to every controller or peripheral. Distinguish standard protection from paid options and keep connectors and cable exits in scope.
Price, package scope and total cost
The indicative review prices are USD 34,000 for ABB GoFa CRB 15000-5 and USD 16,400 for DOBOT CR3A: an arm-price difference of USD 17,600. These figures are starting points from ATC's existing reviews, not binding current offers or identical turnkey packages. Compare them only after aligning the supplied controller, pendant, safety equipment and software options.
Request a complete bill of materials for end effectors, adapters, fixtures, vision, machine interfaces, safety devices, commissioning and operator training. Include tax, freight and installation where applicable. State who will support each component and who owns the task of diagnosing faults across supplier boundaries. A lower arm price can create useful budget headroom, but integration and downtime determine whether that headroom becomes an actual saving.
A practical selection matrix
Decision question | ABB GoFa CRB 15000-5 | DOBOT CR3A |
|---|---|---|
Does the full attached load fit? | Check the 5 kg rating and load diagram | Check the 3 kg rating and load diagram |
Can it reach every required pose? | 950 mm wrist; 1,050 mm flange | 620 mm nominal; verify tool geometry |
Does the environment match? | IP54 | IP54 |
What is the engineering emphasis? | ABB workflow and model-specific load / workspace | Small-part handling, light assembly and inspection where 3 kg total load and 620 mm radius are sufficient. |
What must the demonstration prove? | Quality, safe access, complete cycle and restart | The same acceptance criteria and representative task |
What does the starting price exclude? | Align the complete quoted package | Align the complete quoted package |
Commissioning and purchase checklist
Give both suppliers the same workpiece range, complete tool model, required poses, cycle target, environmental conditions and intended operator interaction. Ask for a written load and reach assessment, the proposed safety concept and a list of included options. The best shortlist candidate is the one that meets the actual constraints with a maintainable cell design, rather than the one that wins the greatest number of isolated specification rows.
Agree the acceptance criteria before the demonstration. Include a missed pickup, a rejected part, an interrupted machine cycle and restart after power loss. Check recipe changeover, recovery permissions, program backups and a realistic service handover. Obtain configuration-specific warranty terms, delivery commitments and local support responsibilities in writing; the source reviews do not establish identical warranty coverage or current inventory.
Read the complete product reviews
Frequently asked questions
Which should I choose: GoFa 5 or CR3A?
GoFa 5 is worth shortlisting for dry small-part assembly and repeatable handling where ABB integration and positioning consistency matter. CR3A is worth shortlisting for small-part handling, light assembly and inspection where 3 kg total load and 620 mm radius are sufficient. Use the actual tool-and-part load, required poses, validated safety concept and comparable installed quotations to make the final choice.
What are the indicative starting prices in US dollars?
ABB GoFa CRB 15000-5 is listed in its ATC review from USD 34,000, while DOBOT CR3A is listed from USD 16,400. The difference is USD 17,600. These prices can change and do not establish matching package contents, freight, taxes or complete-cell integration cost.
How much payload is available for the actual part?
Subtract the gripper, adapters and other attached equipment from the permitted load before allocating workpiece mass. The nominal ratings here are 5 kg and 3 kg. Also check center of gravity, moments and inertia in the worst intended pose; a simple mass calculation alone does not approve the design.
Which robot has the longer usable reach?
GoFa 5 is listed at 950 mm wrist; 1,050 mm flange, while CR3A is listed at 620 mm nominal reach or radius. ABB's wrist and flange references must be distinguished. Model the same tool orientation, approach paths and obstacles before declaring a usable-workspace winner.
Which has the tighter positioning repeatability?
The values used here are ±0.02 mm for GoFa 5 and ±0.02 mm for CR3A. The stated figures are equal. They do not independently guarantee absolute accuracy, process tolerance or finished-part quality.
Does collaborative operation eliminate the need for safeguards?
No. The complete application still needs risk assessment and validation. Grippers, hot or sharp workpieces, trapping points and neighboring machines can require additional safeguards. Use the intended production sequence and access conditions to establish the appropriate protection and operating settings.
Are all controller and communication options included?
Not automatically. Reviews describe available platforms and interfaces, while the quotation defines the supplied configuration. Confirm controller model, pendant, network licenses, I/O and software scope in writing and test the actual PLC and tool connection.
What should a supplier demonstrate before purchase?
Use the same representative task for both robots: the full load, every critical approach pose, normal safety settings and realistic cycle conditions. Include faults, rejected parts, operator interruption and restart. Accept the cell against defined quality, throughput, changeover and recovery criteria, with a documented backup and support handover.
Specifications and indicative prices are drawn from the linked ATC reviews, with exact-variant scope retained. Confirm the offered revision, package, application requirements, warranty and delivery with the supplier. This is an editorial comparison and does not claim a hands-on benchmark.
