The bottom line: In die-driven manufacturing, a machine running at 100% OEE with the wrong die is still a quality problem. ProAlert tracks production targets and scrap thresholds at the cavity level... so your OEE metrics always reflect what tooling is actually in the press, not just that the press is running.

The Die vs. Machine Disconnect

Generic OEE platforms track performance at the machine level. For stamping and molding operations, machine-level metrics hide the actual quality and efficiency story.

  • Machine OEE is a blended average that masks tooling-specific problems.
    A 16-cavity die running at 94% quality looks acceptable in a machine-level OEE system. But if cavity 7 is responsible for 80% of the rejects, you'll never see it unless your quality system attributes scrap to the specific cavity that produced it.
  • Production targets vary by die, not by machine.
    The same press running a high-cavity die produces dramatically more parts per minute than when running a prototype single-cavity die. If OEE targets don't change when the die changes, every run compares actual output against the wrong benchmark.
  • Scrap thresholds should follow the tooling, not the machine.
    Acceptable scrap rates differ between a production die running automotive components and a prototype die doing first-article runs. A machine-level threshold that works for one is wrong for the other... leading to either missed quality signals or constant false alarms.
  • Die changeover cost is invisible in most OEE systems.
    Die changeover time is captured as downtime in generic OEE systems, but the cost attributed to each die change... tooling setup labor, line downtime cost, and changeover frequency... is never analyzed at the die level. You can't optimize what you can't see.

Die Scheduling and Run Management

ProAlert schedules production at the tooling level, not just at the machine and product level. Operators select the active die at run start... which drives the correct OEE targets and cavity attribution for the entire run.

CapabilityHow It Works
Die-Driven Scheduling UI Production schedule entries include die and tooling assignment alongside machine and product. Supervisors schedule by tooling, not just by output. Scheduling UI accessible from web and mobile.
Die/Tool Selection on Production Start Operators select the active die or tooling at the EdgeSense touchscreen or mobile app before starting a run. Selection drives OEE performance targets, scrap thresholds, and cavity attribution for the full run duration.
DieRun CRUD and Finalization Each die run is a first-class record: created at run start, updated continuously as cycles accumulate, and finalized at run end. Finalized runs are immutable records for tooling history and ROI (Return on Investment) analysis.
Die Changeover Cost Analysis Changeover time and labor cost recorded per die change event. Reports show changeover frequency, average duration, and cost per die... enabling data-driven decisions on tooling investment and changeover optimization (SMED).
Tooling Product Type Tooling-driven product types are classified separately from standard products in scheduling and OEE calculation. Prototype runs, first-article runs, and production runs each carry different threshold configurations.
Die-Grouped Mobile Guidance Mobile app displays production guidance grouped by active die, including cavity layout, acceptable ranges, and operator instructions. Technicians on the floor see tooling-specific information, not generic machine procedure.

Cavity-Level Scrap Monitoring

Every scrap entry is attributed to the specific die cavity that produced it. Thresholds are configured at the cavity level. Violations trigger instant notification and enter an approval queue.

Cavity Scrap Threshold Monitoring
Scrap thresholds configured per die cavity. When a specific cavity exceeds its acceptable reject rate, the alert fires at the cavity level... not as an undifferentiated machine-level scrap event. Cavity 7 failures are tracked separately from Cavity 12 failures.
Cavity and Source Attribution
Every scrap entry records the originating die cavity. Pareto analysis of scrap by cavity reveals which tooling positions are contributing disproportionately to reject counts. Targeted corrective action at the cavity level instead of rebuilding the entire die.
Instant Scrap Email Notifications
Email notification fires the moment cavity scrap exceeds the configured threshold... not at the end of the shift, not in the next morning's report. Quality teams can respond to an emerging cavity problem while the die is still in the press.
Scrap Threshold Approval Queue
Scrap events above threshold are placed in a supervisor approval queue. The run can continue only after a supervisor reviews the violation and approves continuation or initiates a die pull. Approval actions are logged with timestamp and supervisor identity for audit purposes.

Violation Approval Workflow: Every threshold violation generates a structured approval record: cavity ID, scrap count, threshold value, time of violation, and the supervisor's disposition (Approve Continue, Pull Die, or Reduce Run). Corrective action notes are attached to the violation record. The complete history is available for quality audits and die repair analysis.

Kanban and Tooling Source Tracking

Kanban Workflow
Visual Kanban board for die and tooling work-in-process management. Track die status across stages: In Storage, Staged, In Press, In Maintenance, and Awaiting Repair. Every die has a current state visible to scheduling and maintenance teams.
Diagram Editor with GPS Markers
Visual floor layout editor with GPS (Global Positioning System) coordinate markers for die storage locations and press assignments. Maintenance teams can locate a specific die in the die room without calling the tool crib.
CMMS Photo Fallback
Die and tooling records display the dedicated die photo when available. When no dedicated die photo exists, the system automatically falls back to the CMMS asset photo for the associated machine. No broken image placeholders.

How Die-Driven OEE Calculation Works

In die-driven mode, ProAlert's OEE engine substitutes die-level targets and thresholds for the generic machine-level defaults at the moment the operator selects the active die.

OEE ComponentStandard ModeDie-Driven Mode
Availability Machine downtime vs. planned run time Same calculation, but changeover time is attributed to the specific die change event rather than generic unplanned downtime
Performance Actual cycles vs. machine's rated cycle target Actual cycles vs. the cycle target configured for the specific die... a 16-cavity die has a different PPH (Parts Per Hour) target than a 4-cavity die on the same press
Quality Good parts vs. total parts at machine level Good parts vs. total parts with cavity attribution... Quality score reflects the per-cavity scrap configuration, and cavity-level violations are visible within the composite Quality metric
Composite OEE Availability x Performance x Quality at machine level Same formula, but all three inputs use die-level configurations. OEE for the run reflects the actual tooling in the press at every moment of the shift

Generic OEE vs. Die-Driven OEE

Generic Machine-Level OEE

  • OEE targets fixed to the machine regardless of tooling in the press
  • Scrap tracked at machine level — no cavity attribution
  • Die changeover treated as generic unplanned downtime
  • No die scheduling — schedule is product and machine only
  • No cavity-level scrap thresholds or approval workflows
  • Die storage location and status managed in separate spreadsheet

  ProAlert Die-Driven Manufacturing

  • OEE targets adjust automatically when the operator selects the active die
  • Every scrap unit attributed to the specific cavity that produced it
  • Die changeover time and cost tracked at the die change event level
  • Schedule entries include die and tooling assignment alongside machine
  • Per-cavity thresholds trigger instant email and approval queue
  • Kanban board shows every die's current state from storage to press

See cavity-level scrap monitoring and die-driven OEE in a live demo.

Book a 30-minute demo... we'll walk through die selection, cavity threshold configuration, and the scrap approval workflow on actual stamping line data.

Schedule a Demo