Injection molding shops juggle machines, moulds, materials and orders that all change daily. ERP built for molding brings them into one record. Here are ten practical benefits.
1. Realistic machine planning
Planning from each mould's running cavities and cycle time shows how many parts a job will produce per shift, so delivery dates are based on capacity, not hope.
2. The right mould on the right machine
Recording which machines suit each mould avoids last-minute changes and idle presses.
3. Mould shot counts
Every shot booked in production adds to the mould's count, so preventive maintenance falls due on time and mould history is in one place.
4. Controlled blends and regrind
Recipes record the virgin resin, masterbatch and regrind percentage for each part, and actual weights are booked per batch, so the blend used is known.
5. Scrap weighed, not guessed
Runners, sprues and rejects are weighed back to regrind stock, showing material losses by machine and mould.
6. In-process quality at the machine
First-off and periodic checks for weight, dimensions and visual defects are recorded per job, and suspect batches are held before they reach packing.
7. Shift-wise analysis
Output, rejects and stoppages per machine and shift show where performance drops and why.
8. Live work in progress
Parts waiting for printing, assembly or packing are visible, so bottlenecks are found before they delay orders.
9. Real cost per part
Material, machine time, labour and packing booked against each job give actual cost per part, which feeds better quotes.
10. Connected sales and dispatch
Orders, stock and dispatch documents come from the same record, so customers get accurate dates and complete paperwork.
What to look for when choosing ERP for molding
- A real mould master: cavities, cycle time, part and runner weight, suitable machines and maintenance history.
- Shop-floor entry that operators will use: mobile screens or machine signals, not long forms on an office PC.
- Regrind as a first-class material: its own stock, its own recipe percentage, its own cost.
- Quality at the machine: first-off approval, periodic checks and holds, not only final inspection.
- Costing from actual consumption: material, machine hours, labour and packing per job.
How to get started
Start with the mould and machine masters, because everything else depends on them. Then bring in production entry for one or two machines, check that shots and output match reality, and expand to the whole shop. Add mould maintenance once shot counts are reliable, and costing once material issues and production entries are complete.
Questions to ask in a demo
- Show me how output per shift is planned for a mould with one blocked cavity.
- Show me a mould's shot count and when its next maintenance is due.
- Show me how runners and rejects go back into regrind stock, and the regrind percentage in yesterday's batches.
- Show me a held batch and who released it.
- Show me the actual cost of a finished job compared with its quote.
A system built for molding answers each of these from data entered on the shop floor, without a spreadsheet on the side.
Common mistakes
- Planning with the mould's full cavities when some are blocked
- Letting regrind go back into the hopper without weighing it
- Recording output once a day instead of per shift
- Keeping mould maintenance in a separate notebook
See the injection, blow and roto molding process flows for a step-by-step view.
