In double-row conveyors, it is crucial that the positions of the chains and attachments in each row are aligned, as multiple rows of conveyor chains support the conveyed goods. However, over time, wear and stretching caused variations in alignment.

If there are variations in the positioning of the chains and attachments, the timing of contact between the attachments in each row and the conveyed material will be different, making stable conveyance impossible.

Therefore, a configuration that allows for easy adjustment on-site in case of chain misalignment was required.

However, with key fastening, the mounting angle of the sprocket is constrained by the keyway position, making it difficult to fine-tune positional shifts caused by chain stretch.

By adopting Power-Lock, the sprocket can now be adjusted to any angle and fixed to the shaft without being restricted by the keyway position.

This design allows for adjustments to be made on-site, as the sprocket position can be changed simply by loosening the tightening mechanism, even if differences in chain wear and elongation occur during operation, causing the attachment to shift position.