ABB GoFa CRB 15000-5 vs Productive Robotics OB7 Stretch: Cobot Comparison
Updated: 12 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Reach figures need careful reading: ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange, while Productive Robotics OB7 Stretch lists 1250 mm. Check the same tool position and reference point before deciding which robot reaches your fixture. ABB GoFa CRB 15000-5 has 6 axes, compared with 7 axes for Productive Robotics OB7 Stretch. |
→ 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; 1,050 mm flange; include the gripper and part in the load. |
→ CONSIDER Productive Robotics OB7 Stretch Consider it when the stated load suits your task and its exact reach reference matches your layout. This article compares 4 kg with a published reach of 1250 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Check the required tool angles and approach path: different axis counts change movement options. Choose only after both suppliers demonstrate the loaded task and quote the same complete installation. |
ABB GoFa CRB 15000-5 vs Productive Robotics OB7 Stretch compares the exact robot configurations, complete tool loads, workspace and ownership requirements that determine whether an automation cell will work. Workspace is the key tradeoff: Productive Robotics OB7 Stretch lists 1250 mm with 4 kg, while ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange with 5 kg. Its seventh joint can help posture, but the larger geometric envelope must work with the real load and required access route.
The indicative starting-price references are USD 34,000 for ABB GoFa CRB 15000-5 and USD 25,000 for Productive Robotics OB7 Stretch. These are review or maker starting prices, not equivalent turnkey quotations. The linked individual reviews provide the underlying specifications; the buying decision also needs the offered revision, tool, process demonstration and installed bill of materials.
Quick verdict
ABB GoFa CRB 15000-5: Light assembly, screwdriving and small machine tending where the complete gripper-and-part load remains within 5 kg. Keep the 950 mm wrist and 1,050 mm flange references separate. IP54 is the reviewed arm rating; the larger GoFa models' IP67 rating does not apply.
Productive Robotics OB7 Stretch: Light machine tending over a 1,250 mm workspace using a seven-axis taught sequence. The extended reach comes with a 4 kg payload, not the heavier Max models' capacity.
ABB GoFa CRB 15000-5 vs Productive Robotics OB7 Stretch: technical specifications
Specification | ABB GoFa CRB 15000-5 | Productive Robotics OB7 Stretch |
|---|---|---|
Rated attached load | 5 kg | 4 kg |
Published reach / geometry | 950 mm wrist; 1,050 mm flange | 1250 mm |
Position repeatability | ±0.02 mm | ±0.1 mm |
Controlled axes | 6 | 7 |
Arm / system mass | 28 kg | 22 kg |
Arm protection reference | IP54 | IP61 |
Controller / HMI | ABB OmniCore C30 | OB7 control computer with zero-programming teach tablet |
Indicative starting price | USD 34,000 | USD 25,000 |
The reach values retain their published geometric references. Wrist, flange, full-load workspace and maximum geometry are different measurements. The table does not combine a family's highest payload, longest reach or best precision into one imaginary configuration. Where the source does not document a field, the supplier must identify it for the offered revision.
Payload and tooling: calculate the complete moving load
The initial load comparison is 5 kg for ABB GoFa CRB 15000-5 and 4 kg for Productive Robotics OB7 Stretch. A complete attached load above 4 kg would exceed the lower headline rating in the simple rated configurations, before any geometry-specific qualification. Include fingers, adapters, cameras, valves and carried material; do not compare only the workpiece mass.
Check the centre of gravity, wrist moments and inertia against the exact load diagram at the most demanding pose. An eccentric long part can fail that check while remaining below the mass limit. If a supplier uses a reduced-load condition, include it in the acceptance record and ensure the production recipe cannot silently exceed it.
Reach, posture and access
ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange; Productive Robotics OB7 Stretch lists 1250 mm. Plot the actual tool centre point rather than the bare flange. The pickup, insertion, inspection and reject positions all require both a reachable location and a feasible orientation. Add the machine door, fixture walls, service cables and carried-part envelope before selecting a base location.
ABB GoFa CRB 15000-5 has 6 controlled axes, compared with 7 for Productive Robotics OB7 Stretch. A redundant joint can change elbow posture while preserving the tool pose. It is useful when it resolves a real obstruction, but it does not make the reachable volume free of collisions or singularities. Qualify the closest approach and escape motion using the intended load, not only a manually positioned empty arm.
ABB GoFa CRB 15000-5: engineering assessment
Use RAPID and RobotStudio expertise as a real maintenance advantage only when the intended technicians can restore and modify the supplied application. A rigid fixture and calibrated tool matter more than a nominal precision advantage on paper. The reviewed combination is 5 kg, 950 mm wrist; 1,050 mm flange and ±0.02 mm positioning repeatability. These figures establish an initial shortlist, while the actual production tool and process establish suitability.
Keep the 950 mm wrist and 1,050 mm flange references separate. IP54 is the reviewed arm rating; the larger GoFa models' IP67 rating does not apply. Define the controller version, enabled software, backup procedure and ownership of the final application before commissioning. A familiar brand is useful when it translates into a technician's ability to diagnose an interrupted task, restore a program and obtain the correct replacement component.
Productive Robotics OB7 Stretch: where the alternative adds value
Hand teaching can shorten setup for a repetitive task, but the taught job must include grip confirmation, machine interlocks and exception recovery. Test whether a representative operator can safely change a recipe. The reviewed configuration combines 4 kg, 1250 mm and ±0.1 mm positioning repeatability. Assess that combination against the actual application instead of assuming that a newer interface or a larger model number settles the choice.
The extended reach comes with a 4 kg payload, not the heavier Max models' capacity. Require a demonstration that includes the intended gripper, normal safety settings and representative part variation. If a critical requirement needs another sensor, external axis, enclosure or custom software, include that work in the alternative's cost and maintenance plan.
Precision, contact behavior and finished-part quality
The positioning references are ±0.02 mm and ±0.1 mm. Repeatability describes returning to a pose under specified conditions; it does not independently establish absolute accuracy or the tolerance of an assembled part. Tool calibration, fixture compliance, thermal effects, workpiece variation and process forces remain relevant even when the robot's repeatability is much tighter than the nominal part tolerance.
For handling, measure reliable acquisition and placement across the complete tray or fixture range. For assembly, measure the resulting seating, fastener or inspection outcome. A successful repeat on one prepared sample is insufficient evidence for a variable production batch. Prefer the system that meets the defined quality criterion with an understandable and maintainable process.
Programming and control integration
ABB GoFa CRB 15000-5 uses ABB OmniCore C30; the source identifies OB7 control computer with zero-programming teach tablet for Productive Robotics OB7 Stretch. OB7's hand-teaching approach changes the setup workflow and deserves an operator-led changeover trial. Do not assume that every documented interface, licence or optional board is included in the starting price.
Create an I/O schedule for the gripper, machine, vision system and safety devices. Match signal voltage, connector pins, protocol roles and acknowledgement timeouts. Require a lost-network test, a missed grip and an interrupted machine cycle. Retain editable programs, backups, calibration data and a recovery procedure that an intended operator can follow safely.
Safety concept and useful cycle time
The finished application needs an assessment of the robot, tool, carried object, machine and access points. Pinching, sharp edges, hot processes and dropped parts can require additional safeguards. A collaborative product label does not establish that every task can operate beside a person without separation or protective devices.
Use the same part, fixture sequence, normal safety settings and peripheral delays for both demonstrations. Machine dwell, grip confirmation, inspection and human visits may dominate arm motion time. Record good parts per hour, changeover, rejects and restart time as well as a best-case cycle. An advertised maximum TCP speed is not a production benchmark.
Environment, mounting and service access
The arm protection references are IP54 for ABB GoFa CRB 15000-5 and IP61 for Productive Robotics OB7 Stretch. Specify the actual contamination, cleaning fluid, temperature and exposure in the purchase requirement. The cabinet, tool connectors, gripper, camera and cable exits need their own protection; an arm ingress rating is not blanket approval for a complete washdown process.
The mass references are 28 kg and 22 kg. Keep arm mass separate from carried payload and cabinet weight. Verify the mounting structure, anchoring, dynamic loads and lifting method using the exact installation drawings. Leave access for controller cooling, connectors, tool service and an arm replacement without dismantling the entire machine bay.
Starting price versus total installed cost
The starting-price references are USD 34,000 and USD 25,000. The arithmetic difference is USD 9,000, before aligning the supplied scope. A lower arm price can be useful, but it is not proof of a cheaper commissioned cell. Confirm whether controller, pendant, software, safety equipment, cables and delivery are included.
Request comparable bills of materials covering tooling, fixtures, vision, machine interfaces, safety equipment, integration, commissioning and training. Include freight, tax and on-site work where applicable. Obtain configuration-specific warranty and delivery commitments and identify who resolves faults spanning the robot, gripper and machine. Do not turn an old review price into a statement of current stock or guaranteed lead time.
Application selection and acceptance criteria
Decision gate | Compare in this pair | Evidence to require |
|---|---|---|
Attached load | 5 kg versus 4 kg | Final tool mass, moments and inertia |
Usable workspace | 950 mm wrist; 1,050 mm flange versus 1250 mm | Loaded path and all required orientations |
Process result | ±0.02 mm versus ±0.1 mm | Representative finished-part acceptance test |
Operating concept | 6 versus 7 axes | Safe access, stop and restart demonstration |
Installed value | USD 34,000 versus USD 25,000 | Matched quotation and maintenance responsibility |
Workspace is the key tradeoff: Productive Robotics OB7 Stretch lists 1250 mm with 4 kg, while ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange with 5 kg. Its seventh joint can help posture, but the larger geometric envelope must work with the real load and required access route. For ABB, the application to demonstrate is light assembly, screwdriving and small machine tending where the complete gripper-and-part load remains within 5 kg. For the alternative, demonstrate light machine tending over a 1,250 mm workspace using a seven-axis taught sequence. A failed load, posture, quality or safety gate requires a different concept before an attractive purchase price becomes relevant.
Give both suppliers the same tool CAD, part range, target cycle, exposure conditions and intended operator interaction. Agree measurable pass criteria before the trial. Test a missed pickup, rejected part, blocked machine, communication loss and restart after power interruption. Have the intended operator change a recipe and recover an interrupted sequence under the approved procedure.
Complete product reviews
Frequently asked questions
Which should I choose: ABB GoFa CRB 15000-5 or Productive Robotics OB7 Stretch?
Workspace is the key tradeoff: Productive Robotics OB7 Stretch lists 1250 mm with 4 kg, while ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange with 5 kg. Its seventh joint can help posture, but the larger geometric envelope must work with the real load and required access route. Light machine tending over a 1,250 mm workspace using a seven-axis taught sequence. Select the configuration that passes the real load, path, process-quality and safety requirements with an acceptable installed quotation and a maintainable operating workflow.
What starting prices are used in this comparison?
The references are USD 34,000 for ABB GoFa CRB 15000-5 and USD 25,000 for Productive Robotics OB7 Stretch. They are indicative starting prices from the linked reviews or maker information. Confirm the offered controller, pendant, software, safety equipment, freight and integration scope; these figures are not matched turnkey offers.
Does the payload rating include the gripper?
Yes. Count the complete end effector, adapters, attached devices and carried part, then check the permitted moments and inertia. This comparison uses 5 kg and 4 kg. Passing the mass limit alone does not approve an eccentric or high-inertia tool.
Which robot has the more useful workspace?
ABB GoFa CRB 15000-5 lists 950 mm wrist; 1,050 mm flange, while Productive Robotics OB7 Stretch lists 1250 mm. Check matching geometric references, the actual tool offset, required orientations and the full loaded path. An endpoint that is reachable by the wrist may still be unsuitable for insertion, clearance or safe retreat.
Does repeatability guarantee the finished-part tolerance?
No. The comparison uses ±0.02 mm for ABB GoFa CRB 15000-5 and ±0.1 mm for Productive Robotics OB7 Stretch. Fixtures, calibration, part variation and process forces affect the completed result. Define and measure the actual assembly, handling or inspection acceptance criterion.
What is the main configuration limit of Productive Robotics OB7 Stretch?
The extended reach comes with a 4 kg payload, not the heavier Max models' capacity. Hand teaching can shorten setup for a repetitive task, but the taught job must include grip confirmation, machine interlocks and exception recovery. Test whether a representative operator can safely change a recipe.
Are all software and safety options included in the price?
Not automatically. The source identifies OB7 control computer with zero-programming teach tablet for Productive Robotics OB7 Stretch, but only the current quotation defines the supplied and enabled package. Confirm interfaces, programming licences, protective devices, backups and ownership of the finished program.
What should the supplier demonstrate before purchase?
Use the real tool and representative parts under normal operating settings. Require the critical poses, finished quality, realistic cycle, changeover, missed-grip response, communication-loss behavior and safe restart. Keep the program, configuration and agreed acceptance record from the successful trial.
