The production cycle of paper corner guards can vary depending on the manufacturer, customization requirements, and order quantity. Normally, the production cycle of paper corner protectors includes the following stages:

1. Order confirmation and design stage: After confirming the order, you need to communicate with the customer and design a paper corner protector that meets their needs. This includes determining custom requirements such as size, color, printing or logos. The length of this stage depends on the customer's needs and the efficiency of communication, and can usually take anywhere from a few days to a week.

2. Raw material preparation: Producing paper corner protectors requires the preparation of appropriate raw materials, including cardboard and ink. This stage usually takes several days, depending on the supply chain management of the production line.

3. Production and manufacturing: Once the raw materials are ready, the production line will start manufacturing the paper corner protectors according to the size and complexity of the order. The length of the production cycle depends on the order quantity and production speed, and may take anywhere from a few days to a few weeks.

4. Quality control and inspection: After production is completed, quality control and inspection are usually required to ensure that the paper corner protectors meet customer requirements and quality standards. The length of this phase depends on the complexity of the inspection and the size of the order.

5. Packing and Shipping: Once the paper corner guards pass inspection, they will be packed and ready for shipping. Packaging and shipping time depends on order size and logistics arrangements.

Overall, the production lead time for paper corner guards usually ranges from a few days to a few weeks, depending on several factors. If you require large quantities or custom-made paper corner guards, it is best to contact the manufacturer in advance to ensure they have enough time to meet your needs.