Application Requirements
Composite sheets and CNC-machined fixtures for PCB assembly, handling, soldering and testing. Match material properties to your production process.
Reliable fixture performance begins with the manufacturing process rather than a generic material claim. LH Stone reviews the thermal profile, PCB design, protected components, solder exposure, mechanical load, ESD needs and expected production volume before recommending a material or machining route.
Common Production Challenges
- Fixture distortion after repeated thermal cycles.
- Insufficient rigidity around thin walls or large openings.
- Material wear caused by handling, cleaning or chemical exposure.
- Inconsistent dimensions across replacement fixtures.
- Long lead times when drawings and inspection criteria are incomplete.
Recommended Workflow
Process Review
Confirm temperature, equipment and board handling.
Material Selection
Match properties to the actual application.
Design Review
Check clearances, rigidity and manufacturability.
Production
Machine and inspect to the approved drawing.
Lifecycle Support
Retain approved information for repeat orders.
Suitable Product Routes
Depending on the application, LH Stone can supply high-temperature composite sheets, ESD grades, solder pallet material, custom CNC fixture plates or finished PCB assembly fixtures.
Start an Application Review
Provide the PCB data, process type, fixture objective, operating conditions, quantity and any current design or failure information.