How to estimate the monthly usage of hot melt adhesive particles in a printing factory? A inventory accounting list

Direct answer: Reverse calculate based on “single piece glue consumption x planned output”

Printing factory estimateHot melt adhesive granulesThe most reliable method for monthly usage is not to rely on last year’s feelings, but to first measure the actual glue consumption of a single book or cardboard box, then multiply it by the next month’s production volume, and finally add the loss and safety stock. Once calculated, it can be settled into a ledger, and then only the production volume will be changed every month.

Four step accounting checklist

• The first step is to measure unit consumption: continuously produce 100 books (or 100 boxes), use the difference in feeding weight of the rubber cylinder before and after production ÷ quantity, and obtain g/piece;
• Step 2: Scheduling production: Take the quantity of each product for the next month from the production plan, and classify and count them separately by type and box;
• The third step is to calculate the loss: preheating and discharging the glue, changing batches and cleaning the machine, and scrapping the test machine, generally accounting for 5% -8%;
• The fourth step is to establish a safety stock: based on the supply cycle multiplied by the daily average usage, usually leaving a quantity of 7-15 days.

Reference unit consumption (can be applied before self-test)

Stock up to avoid two extremes

Pressing too much cargo may lead to summer high temperatures, clumping, and exceeding the shelf life; If the pressure is too low, the materials will be cut off and the production line will be shut down during the rush season. It is recommended to place orders on a rolling basis based on “monthly usage+15 days of safety stock” and prepare for the peak season one month in advance. Sunlife hot melt adhesive supports monthly rolling supply and small batch replenishment. Guangzhou Sunlife Trading can help you calculate a stocking recommendation based on your production schedule, and prioritize production and shipment during peak seasons.

Make the ledger into three tables

Suggest fixing three tables for rolling maintenance: one is the “Unit Consumption Table”, which records g/piece by product model and retests once every quarter; The second is the “Monthly Consumption Table”, which calculates the output by multiplying the unit consumption and includes it in the loss as the basis for placing orders; The third is the “Inventory Ledger”, which records the batch number, date of receipt, and remaining quantity, and cooperates with first in first out to avoid exceeding the deadline. By linking three tables together, procurement no longer relies on intuition, and finance can also deduce the cost of glue per 10000 copies and boxes.

The difference between peak and off peak seasons should be taken into account in advance

The textbooks and teaching aids of the book and magazine factory are concentrated in spring and autumn, while the packaging factory is significantly affected by the e-commerce promotion. One month before the peak season, the safety stock should be increased from 7 days to over 15 days, and the brand should be locked in advance to avoid temporary material changes and delayed delivery due to re sampling.

Frequently Asked Questions

Q1: Can different formats be combined together for calculation?
Not recommended, the difference in format and page count directly affects unit consumption, and classification statistics are only accurate.

Q2: How long is it appropriate to keep safety stock?
According to the supply cycle, the next day delivery within the same city can be kept for 7 days, and it is recommended to stay for more than 15 days for cross province or customized brand.