Tool Selection Unit for Error-Proof Tightening
Automatically identify the selected socket or bit and switch to the correct tightening program, ensuring accurate torque control and preventing operator errors.

Error-Proof Tool Selection for Accurate Tightening
The intelligent tool selection unit is designed to assist tightening operations by identifying the selected socket or bit and automatically activating the corresponding tightening program.
It eliminates the risk of incorrect tool selection and ensures that each fastening operation is performed with the correct torque and sequence.
Key Capabilities
Automatic Program Switching
Automatically switch tightening programs based on the selected socket or bit, allowing one tool to handle multiple torque requirements efficiently.
Error-Proof Operation (Poka-Yoke)
Prevent incorrect socket or bit selection, ensuring that the correct torque is always applied for each fastening point.
LED-Guided Operation
Built-in LED indicators guide operators step-by-step, improving visibility, reducing confusion, and increasing overall efficiency.
Flexible Signal Compatibility
Compatible with both NPN and PNP wiring, making integration with different control systems simple and reliable.
Why Use a Tool Selection Unit?
Without Tool Selection Unit
- Operators may select the wrong socket or bit
- Incorrect torque settings may be applied
- High risk of assembly errors
- Increased dependence on operator experience
With Tool Selection Unit
- Automatic program matching based on tool selection
- Correct torque applied for every operation
- Reduced assembly errors and rework
- Standardized process independent of operator skill
Specification
Model | A (mm) | B (mm) |
KR004-04-O-05M | 218 | 228 |
KR004-04-OI-05M | 218 | 228 |
KR004-06-O-05M | 318 | 328 |
KR004-06-OI-05M | 318 | 328 |
KR004-08-O-05M | 418 | 428 |
KR004-08-OI-05M | 418 | 428 |
KR004-10-O-05M | 518 | 528 |
KR004-10-OI-05M | 518 | 528 |
FAQ
What does the tool selection unit do?
The tool selection unit identifies the selected socket or bit and automatically activates the corresponding tightening program. This ensures that the correct torque and parameters are applied for each fastening operation.
How does it prevent incorrect tightening operations?
By linking each socket or bit position to a specific tightening program, the system ensures that only the correct program is executed when a tool is selected. This eliminates the risk of applying the wrong torque due to incorrect tool selection.
Can one tool be used for different torque requirements?
Yes. The system allows a single tightening tool to handle multiple torque values by automatically switching programs based on the selected socket or bit.
Does the system support both sockets and bits?
Yes. The tool selection unit is compatible with both socket and bit selection, providing flexibility for different fastening applications.
What is the role of the LED indicators?
The LED indicators guide the operator during the tightening process by showing the correct selection or sequence, improving visibility and reducing the chance of operational errors.
Is the system compatible with different control systems?
Yes. The unit supports both NPN and PNP signal types, making it compatible with a wide range of industrial control systems.
Can it be integrated with tightening controllers?
Yes. The tool selection unit works with KR002-B01 field controllers and can also be integrated with the KR002-H01 supervisory system for coordinated control and data management.
In what applications is this system most useful?
It is ideal for assembly processes involving multiple torque requirements, multiple fastening points, or different product variants, where error-proof operation is critical.