Manufacturing & production
Mold and tooling management for manufacturers
How manufacturers manage molds, dies and tooling: mold register, shot counts, preventive maintenance, storage, customer-owned molds and records.
For plastics injection molders, die-casters, metal stampers, packaging and rubber manufacturers, molds and dies are the plant's most valuable tools. A damaged mold can stop production for weeks; a lost customer-owned mold can end a customer relationship. Yet in many plants, molds are tracked on a whiteboard and maintenance happens only when parts start coming out defective. Mold and tooling management treats each mold as a critical asset with its own record, history and maintenance plan.
The mold register
| Field | Example |
|---|---|
| Mold ID and tag | M-0342 |
| Description | 4-cavity cap mold, 28 mm |
| Products made | Part numbers and customers |
| Owner | Company-owned or customer-owned |
| Cavities | 4 (note any blocked cavities) |
| Compatible machines | Machine sizes or specific presses |
| Location | Storage rack or mounted on machine |
| Shot or stroke count | Total cycles to date |
| Maintenance interval | For example, every 50,000 shots |
| Condition | In service, under repair, retired |
| Documents | Drawings, setup sheets, photos, repair history |
Track usage by shots or strokes
Molds wear with use, not with calendar time. Record shots (injection molding) or strokes (stamping) from each job, either from machine counters or from output recorded per job divided by cavities. Usage drives maintenance timing.
Example: a 4-cavity mold produced 160,000 good parts plus 4,000 scrapped parts this month. Shots ≈ 164,000 ÷ 4 = 41,000. If maintenance is due every 50,000 shots, it will be due again soon after next month's production starts.
Preventive maintenance for molds
| Level | Typical tasks | Trigger |
|---|---|---|
| Between runs | Clean, inspect, rust prevention before storage | Each unload |
| Routine | Clean vents, check ejectors, lubricate moving parts, check cooling channels | Shot count interval |
| Major | Disassemble, replace worn components, polish, check dimensions | Larger shot interval or quality signals |
Record each maintenance and repair against the mold, linking to maintenance work orders.
Setup sheets and standard settings
Each mold should have a setup sheet with the approved machine settings (temperatures, pressures, times) that produce good parts. Standard settings reduce startup scrap and make changeovers faster (SMED, scrap and rework tracking).
Storage and handling
- Dedicated racks with labeled locations
- Rust prevention and covers
- Safe lifting equipment and procedures
- Check-out and return records when molds move to machines, repair shops or other plants
Customer-owned molds
Many Philippine contract manufacturers hold molds owned by their customers. Record ownership clearly, follow the customer's maintenance and approval requirements, report condition when requested, and never modify or move them without authorization. Include them in periodic verification (fixed asset audit).
Tooling KPIs
- Mold-related downtime hours (machine downtime tracking)
- Preventive maintenance done on time by shot count
- Scrap attributed to tooling
- Average changeover time per mold
- Repair cost per mold per year
Where Cirquolus fits
The Cirquolus production management system includes mold records alongside job orders, processing, productivity, cost and product movement. Mold repairs and vendor work can be handled through asset management service requests and engineering work.
Frequently asked questions
What is mold management?
Managing molds and dies as critical assets: registering them, tracking usage, maintaining them by shot count, storing them properly and recording repairs.
How often should injection molds be maintained?
Based on shot counts and condition, with cleaning between runs, routine maintenance at set shot intervals and major overhauls less frequently.
How do you count mold shots?
From machine counters, or by dividing parts produced (including scrap) by the number of active cavities.
How should customer-owned molds be handled?
Record ownership, follow customer requirements for maintenance and changes, and include them in regular verification.
Bring this workflow to a Cirquolus demo.
Show us your current process, companies and branches. We will map it to the modules you need and propose a realistic rollout.