Automatic bolting system for car underbody assembly
Achieve precise underbody bolting in car assembly lines with a fully automated system that enhances production accuracy and efficiency, seamlessly integrating into existing processes to ensure reliable tightening and data synchronization.

The Flex Bolt Automatic Bolting System from Dürr is engineered to deliver unmatched precision in automotive assembly applications. This Cartesian axis system excels at automating the underbody bolting process, using fully controlled axes to enhance both capacity and precision. Designed for integration into automotive lines, it accommodates simultaneous multi-model production with programmable flexibility. The Flex Bolt system automates screw tightening and ensures data integrity by transferring critical bolting parameters to a central PC, enabling real-time quality control. The system’s direct communication with backup stations allows for automated repeat processes without manual intervention, optimizing production flow. Ideal for industries beyond automotive, such as mechanical engineering, chemical, pharmaceutical, and woodworking, the Flex Bolt system supports a range of end products from engine assemblies to pharmaceutical capsules.
Benefits
- Enhances production efficiency by automating precise bolting operations, minimizing manual intervention.
- Improves quality control through real-time data transfer and monitoring, ensuring accurate tightening.
- Facilitates seamless multi-model production with programmable axis flexibility.
- Integrates smoothly into existing production lines, boosting overall workflow efficiency.
- Reduces operational costs by decreasing the need for repeat manual adjustments.
- Applications
- Woodworking industry,Automobile manufacturing,Mechanical engineering,Chemical industry,Pharmaceutical industry
- End products
- Pharmaceutical capsules,Engineered wood products,Automotive underbody components,Chemical product containers,Engine assemblies
- Steps before
- Marriage station assembly,Mechanical parts loading,Car body alignment
- Steps after
- Data transfer to concentrator PC,Quality control check,Product handling and packaging
- Input ingredients
- mechanical parts,car body,screws
- Output ingredients
- bolted car underbody,tightened screws
- Automation
- Fully automatic
- Axis Control
- Fully programmable and configurable
- Axis System
- Cartesian axis system
- Data Transfer
- Real-time to data concentrator PC
- Flexibility
- Complete flexibility on three axes
- Bolting Process
- Automatic
- Precision
- High precision in bolting
- Tightening Verification
- Automated screw tightening check
- Repeat Process
- Automatic with backup station support
- Working mechanism
- Cartesian axis system
- Automation level
- Completely automatic process
- Integration capability
- Configurable for different models on same line
- Data transfer
- Transferring tightening data to concentrator PC
- Flexibility
- Programmable and configurable in three axes
- Error handling
- Automatic repeat of screwing processes
- Precision enhancement
- Controlled axes for increased precision
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Cartesian axis system
- Multi-level
- Placement
- Intermediate floor (mezzanine)
- Footprint
- Part of a dedicated intermediate floor system
- Flexibility on axes
- Three-axis programmable
- Pallet handling
- Upper level with car body on hanger
- Data management
- Data concentrator PC
- Backup system
- Direct communication with backup station
- Programmable Axes
- 3 Axes
- Configurable Models
- Multiple Models on Same Line
- Data Communication
- Data Transfer to PC
- Backup Station Integration
- Automatic Screwing Process
- Market info
- Dürr is known for its expertise in industrial engineering and manufacturing solutions, specializing in automotive painting technology, environmental technology, and production efficiency systems. It has a strong reputation for innovation and quality in engineered-to-order equipment.