ApplicationsApplication of a pumpable sound deadener inside vehicle pillars during the body manufacturing process
- Industry
- Automotive
- Fluid
- Pumpable sound deadener
Current challenges and requests
In the body manufacturing process, a sheet-type sound deadener was applied manually. However, applying the deadener in hard-to-reach areas increased operator workload and posed a risk of missed installation. Switching to a liquid material promised reduced backing-paper waste, but introducing a pumpable sound deadener presented several challenges.
- The pumpable sound deadener had to be applied deep inside pillar structures.
- The ultra-high-viscosity material had to be applied quickly, with sufficient width and thickness to ensure effective sound deadening.
Solutions and merit when improved
To address these challenges, the Hose-Free System—capable of high-precision application of highly viscous materials—was adopted.
- With no hoses on the robot’s moving parts, the Hose-Free System enabled flexible application even in deeply recessed areas of the vehicle body.
- Eliminating hose constraints also simplified robot teaching during setup.
- Even with ultra-high-viscosity material approaching 1,000,000 mPa·s, the Hose-Free System consistently applied the required amount with high accuracy and within the specified cycle time.
- Switching to a pumpable sound deadener enabled process automation, reducing manual labor while ensuring high sound insulation performance.

Related information
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