Adjustable Stroke Pick and Place Units: Enabling Flexible Part Handling Across Multiple Stations
An adjustable-stroke PPU (Pick and Place Unit) uses a variable cam profile to modify horizontal travel without disassembling the mechanical structure. This design solves fixed-stroke rigidity loss during product revision, maintaining positioning repeatability within ±0.005 mm and cycle time below 0.7 s for multi-station relay and component transfer.
Fixed vs Adjustable Stroke PPU Performance Comparison
| Parameter | Fixed-Stroke PPU | Adjustable-Stroke PPU (Cam Type) |
|---|---|---|
| Horizontal Stroke | Single fixed value | 130–170 mm continuous adjustment |
| Positioning Repeatability | ±0.004 mm (nominal stroke) | ±0.005 mm across full stroke range |
| Structural Rigidity (Bending Deflection) | 0.011 mm | 0.014 mm |
| Product Changeover Time | 45–70 min (mechanical disassembly) | 12–18 min (cam fine-tuning only) |
| Relative Capex | Low | Medium |
| Continuous Cycle Life | 12 million cycles | 10 million cycles |
Download Detailed 3D CAD (.STEP) Models for Linear Actuators. Configure your own pick and place unit for multi-product relay assembly lines.
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