Custom High-Precision Locking Pins for a Belgian Client
As a professional manufacturer of 3D welding tables and accessories, we understand that even the smallest component plays a critical role in the accuracy and efficiency of a flexible welding fixture system.
Recently, we successfully delivered a batch of customized locking pins to a client in Belgium. The client had been experiencing declining positioning accuracy and insufficient clamping force on their existing 3D welding tables due to prolonged high-load usage. After comparing multiple suppliers, they chose to partner with us for custom-made locking pins compatible with their D28-series 3D welding Tables.
The Challenge: Accuracy Loss Under High-Frequency Operation
Wear & Failure: The original locking pins suffered from frequent ball bearing jamming and clamping force degradation due to inferior materials and inadequate heat treatment, resulting in clamping force falling below design specifications.
Compromised Workpiece Quality: The insufficient clamping stability caused issues during processing, leading to dimensional deviations in finished parts.
Low Changeover Efficiency: Many pins were difficult to remove, significantly slowing down fixture assembly and changeover times.
Our Solution: High-Precision, Wear-Resistant Custom Locking Pins
To address the client's pain points, we provided a comprehensive upgrade in both material selection and manufacturing processes. These locking pins are specifically designed for D28-series 3D flexible welding Tables and offer the following advantages:
Premium Material & Heat Treatment:
Forged from high-grade alloy steel, offering superior impact resistance and toughness compared to common cast iron alternatives.
Surface treated with nitriding for enhanced hardness and corrosion resistance, significantly extending service life.
Patented Multi-Ball Self-Locking Mechanism:
Internal concentric multi-ball expansion design ensures automatic self-centering when the screw is tightened, achieving repeatable positioning accuracy of ≤0.02mm.
Delivers a clamping force of up to 50kN and a shear force of 250kN after tightening, capable of handling heavy-duty applications without displacement.
Tool-Free Operation:
Supports one-click quick locking/release. When loosened, the balls retract for easy insertion into standard table holes; when tightened, the pin locks firmly in place-eliminating the need for repeated adjustments and dramatically improving fixture assembly efficiency.
Delivery & Client Feedback
The batch of locking pins was delivered on schedule. On-site testing confirmed that the new pins significantly enhanced the overall rigidity of the fixture system, ensuring stable performance throughout the production process. The finished product dimensional pass rate increased to over 99%.
The client commented: "The new locking pins not only solved our accuracy issues but also cut our setup time in half. We are extremely satisfied with this collaboration."
If you are also looking for high-precision, long-lasting locking pins or customized fixturing solutions for your 3D welding tables, feel free to contact us for samples or technical drawings.