Productive Robotics OB7 Stretch Review: Specs, Price and Applications of the 4 kg Collaborative Robot
Updated: 2 days ago
The Productive Robotics OB7 Stretch is a 7-axis collaborative robot with a maximum payload of 4 kg, a reach of 1250 mm and ±0.1 mm repeatability, listed from USD 25,000. This review covers its full specifications, design, programming options, applications and price, so you can decide whether it fits your automation project.
Quick Verdict
The Productive Robotics OB7 Stretch is a 7-axis collaborative robot that carries 4 kg over a 1250 mm reach. It is a longer-reach version of the standard OB7 and is widely used for tending lathes. At 22 kg the arm is light enough for cart or pedestal mounting on a 220 mm flange, and it repeats to ±0.1 mm. Programming is done by demonstration from a tablet, with EtherNet/IP, TCP/IP and Modbus available for machine communication. It is listed from USD 25,000.
Productive Robotics OB7 Stretch at a Glance
Maximum payload: 4 kg
Reach: 1250 mm
Axes: 7
Repeatability: ±0.1 mm
Speed: 2 m/s
Weight: : 22 kg. Mounting flange: 220 mm. Joint range: ±360° on all seven joints. Arm protection: IP61. Control computer: IP30. Power: 100-240 VAC, 50-60 Hz
Controller: OB7 control computer with zero-programming teach tablet
Price: from USD 25,000
Productive Robotics OB7 Stretch Technical Specifications
The table below lists the published specifications of the Productive Robotics OB7 Stretch.
Specification | Productive Robotics OB7 Stretch |
Manufacturer | Productive Robotics |
Model | OB7 Stretch |
Robot type | 7-axis collaborative robot |
Maximum payload | 4 kg |
Reach | 1250 mm |
Axes | 7 |
Repeatability | ±0.1 mm |
Speed | 2 m/s |
Controller | OB7 control computer with zero-programming teach tablet |
Interfaces | 100 Mb Ethernet, EtherNet/IP, TCP/IP, Modbus, optional General Equipment Interface with 8 isolated digital inputs, 8 digital outputs and 4 analog inputs |
Certifications | ISO 10218-1 |
Starting price | From USD 25,000 |
Detailed Technical Data
Weight: 22 kg. Mounting flange: 220 mm. Joint range: ±360° on all seven joints. Arm protection: IP61. Control computer: IP30. Power: 100-240 VAC, 50-60 Hz
Design and Build Quality
The OB7 Stretch is a 7-axis collaborative robot made by Productive Robotics. Published build data: Weight: 22 kg. Mounting flange: 220 mm. Joint range: ±360° on all seven joints. Arm protection: IP61. Control computer: IP30. Power: 100-240 VAC, 50-60 Hz.
Programming and Software
Controller and Software
Published controller for the OB7 Stretch: OB7 control computer with zero-programming teach tablet. OB7 robots are taught by moving the arm by hand through the task, without writing code. Programming interfaces, software licences and simulation tools vary by package, so confirm what is included before ordering.
Industrial Communication
Published interfaces are 100 Mb Ethernet, EtherNet/IP, TCP/IP, Modbus and optional General Equipment Interface with 8 isolated digital inputs, 8 digital outputs and 4 analog inputs.
Productive Robotics OB7 Stretch Applications and Use Cases
Typical applications for the OB7 Stretch are machine tending, assembly, inspection, education, research, packaging and dispensing.
Machine tending
The OB7 Stretch loads and unloads machine tools, presses and moulding machines within its 1250 mm reach.
Assembly
Repeatability of ±0.1 mm supports fitting, inserting and fastening parts in assembly cells.
Inspection
The OB7 Stretch presents parts to cameras and gauges, or carries the sensor to the part.
Productive Robotics OB7 Stretch Price and Value
The Productive Robotics OB7 Stretch is listed from USD 25,000 on All Things Cobots. The controller, end effectors, safety equipment and integration affect the final price and are quoted separately. Prices are indicative, are not final and may change.
Pros and Cons
Pros
4 kg maximum payload with a 1250 mm reach
Speed: 2 m/s
Collaborative design for work near people, subject to a risk assessment
Seventh axis adds flexibility in tight cells
Wide choice of communication interfaces
Taught by hand without writing code
Cons
Repeatability of ±0.1 mm is wider than on smaller precision robots
The 4 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Productive Robotics OB7 Stretch?
The Productive Robotics OB7 Stretch fits manufacturers that want a robot working near people without full fencing, subject to a risk assessment.
See the full Productive Robotics OB7 Stretch product listing on All Things Cobots.
Productive Robotics OB7 Stretch FAQ
How much does the Productive Robotics OB7 Stretch cost?
The Productive Robotics OB7 Stretch is listed from USD 25,000 on All Things Cobots. The price is indicative and may change, and it does not include end effectors, safety equipment or integration.
What is the payload and reach of the Productive Robotics OB7 Stretch?
The OB7 Stretch has a maximum payload of 4 kg and a reach of 1250 mm.
How accurate is the Productive Robotics OB7 Stretch?
Its published repeatability is ±0.1 mm.
How many axes does the Productive Robotics OB7 Stretch have?
The OB7 Stretch has 7 axes.
How is the Productive Robotics OB7 Stretch programmed?
OB7 robots are taught by moving the arm by hand through the task, without writing code.
Which controller does the Productive Robotics OB7 Stretch use?
Published controller: OB7 control computer with zero-programming teach tablet.
How much does the Productive Robotics OB7 Stretch weigh?
Published weight: 22 kg. Mounting flange: 220 mm. Joint range: ±360° on all seven joints. Arm protection: IP61. Control computer: IP30. Power: 100-240 VAC, 50-60 Hz.
Is the Productive Robotics OB7 Stretch a collaborative robot?
Yes. The OB7 Stretch is a collaborative robot. Every collaborative application still needs its own risk assessment.
What is the Productive Robotics OB7 Stretch used for?
Typical applications are machine tending, assembly, inspection, education, research, packaging and dispensing.
Specifications and prices are based on manufacturer and distributor information. Prices are indicative, are not final and may change.
