What Is a Cycle-Based PM Schedule?

Chinese toolroom engineer checking cycle count and parting line condition during injection mold preventive maintenance

Reviewing mold cycle data on the toolroom workbench to determine the next PM gate.

A cycle-based injection mold maintenance schedule is a data-driven framework that triggers tool service based on the actual number of production shots (cycles) rather than calendar days. This precision approach is essential for a robust preventive vs reactive mold maintenance strategy. By tracking the mechanical fatigue of the tool through cycles, engineers can predict the onset of wear before it results in expensive quality failures.

Why cycle count is more useful than calendar-based PM

Calendar-based PM is often inaccurate in high-volume production. A mold running 24/7 for a single week experiences significantly more mechanical and thermal stress than a tool sitting in storage for a month. Cycle counting provides a direct correlation to steel friction, heater duty cycles, and resin outgassing frequency.

Tool cycles vs. shots vs. molded parts

For engineering audit purposes, we must distinguish between these metrics:

Tool Cycles: The primary maintenance metric. It tracks every time the mold opens and closes, regardless of part yield.
Shots: Equivalent to cycles in most systems; monitors the cumulative frequency of injection events.
Molded Parts: Total output; calculated by multiplying cycles by cavitation. This is used for ROI, but not for mechanical PM intervals.

What this schedule controls

This schedule serves as the "LCP switch" for toolroom efficiency by standardizing the control of:

Abrasive Wear: Monitoring gate and cavity erosion caused by glass-filled or carbon-filled resins.
Vent Fouling: Scheduling the restoration of vent depths to prevent diesel burns and gas marks.
Process Drift: Identifying early-stage cooling circuit scaling or heater resistance drift.
Unplanned Downtime: Ensuring the impact of preventive maintenance on tooling cost and downtime remains optimized throughout the mold's life cycle.

How to Set Mold PM Intervals by Cycle Count, Resin Wear, and Tool Risk Level

Injection mold components showing wear-sensitive zones for GF resin and hot runner maintenance planning

Comparison of tool complexity and wear zones to determine preventive maintenance frequency.

A universal PM interval does not work across all injection molds. The correct baseline depends on resin abrasiveness, side-action count, hot runner exposure, cosmetic requirement, and how quickly vents, gates, shut-offs, and moving components accumulate wear. Failure to categorize tool risk often results in how preventive maintenance affects tooling cost and downtime during mass production.

Resin type alone is not enough to classify PM risk. A low-abrasion resin running on a tool with multiple slides, tight shut-offs, visible surfaces, or unstable cooling may still require a Level 2 or Level 3 maintenance strategy. We categorize mold risk levels to ensure engineering resources are focused where failure is most likely.

Tool Level	Typical Resin/Design	Minor PM	Standard PM	Major Overhaul	Engineering Reason
Level 1	PP, PE, PS; Cold Runner	50,000	100,000	300k - 500k	Stable commodity resins with low outgassing and minimal mechanical wear.
Level 2	ABS, PC, PA6; Slides & Lifters	25,000	50,000	150k - 250k	Multiple steel-on-steel interfaces increase lubrication loss and galling risk.
Level 3	PA66 GF30, PBT GF, Hot Runner	5,000	15,000	50k - 100k	Glass-filled resins accelerate gate wear; hot runners increase thermal drift risk.

Engineering Note: These intervals are baseline planning values, not fixed release rules. Actual frequency should be tightened when wear rate, vent fouling, gate erosion, cooling instability, or restart scrap indicates that the mold is drifting faster than expected.

Level 1: Maintenance Focus

Primarily parting line cleaning and basic ejection lubrication. While these tools have the longest intervals, technicians must still track cycle counts to prevent "memory-based" maintenance gaps.

Level 2: Moving Components

Focuses on slides, lifters, and wear plate lubrication. The primary failure mode is galling or clearance growth, necessitating shorter intervals even with non-abrasive resins.

Level 3: Critical Wear & Thermal Sensitivity

Focuses on vent restoration, gate integrity, and hot runner electrical checks. Preventive action is critical here before irreversible cavity damage occurs. We recommend auditing mold steel choice and wear rate to match the expected cycle frequency of abrasive materials.

When PM Intervals Must Be Shortened

Baseline intervals should be adjusted immediately if the following risk factors are detected in production:

Abrasive Fillers: Using 30%+ Glass Fiber (GF) or Carbon Fiber (CF) fillers requires shortening minor PM to inspect gate and shut-off erosion.
Corrosive Outgassing: Resins like PVC, POM, or FR-rated materials necessitate shortened vent-cleaning and cavity-surface check intervals.
Cosmetic Requirements: High-gloss or optical-grade parts require frequent vent review to prevent burn marks, haze, or surface defects.
High Cycle Loads: Tools running at cycle times below 10 seconds increase thermal load on cooling circuits and ejection frequency, shortening the component fatigue life.

Recommended Mold PM Intervals by Cycle Count and Tool Risk Level

How often should an injection mold be serviced by cycles?

As a baseline, injection mold service intervals should be based on tool risk level, not part count alone. Simple cold runner tools (Level 1) may require Minor PM every 25,000 to 50,000 cycles, while hot runner or PA66 GF30+ molds (Level 3) often need checks every 5,000 to 10,000 cycles because wear, vent fouling, and gate erosion accumulate faster.

Proactive toolroom management requires a clear understanding of how preventive maintenance affects tooling cost and downtime. The baseline planning intervals below must be adjusted according to resin behavior and tool complexity.

PM Level	Baseline Cycle Range	Primary Engineering Tasks	Required Evidence	Release Condition (Restart Gate)
EOJ (End-of-Job)	Every Run	Remove resin residue/deposits; clean parting lines; apply anti-rust protection.	EOJ Checklist sign-off linked to Tool ID.	Mold faces clean; storage protection verified.
Minor PM	25k - 50k	Vent restoration; lubrication of moving components; ejector/pin galling check.	Before/After photos; maintenance log update.	Vents clear; no mechanical drag; next due count recorded.
Standard PM	100k - 250k	Seal replacement (O-rings); cooling flow/leak test; hot runner electrical check.	Flow rate data; IR/Heater resistance logs.	Flow restored to baseline; leak test passed; electricals within tolerance.
Major Overhaul	500k - 1M+	Full teardown; wear component replacement; bluing check; baseline reset.	Overhaul report; replaced parts log; bluing photo.	Parting line contact 100%; restart qualification approved by QA.

End-of-job (EOJ) maintenance & Storage Protection

EOJ maintenance prevents corrosive outgassing (from resins like POM or PVC) from pitting the mold steel during storage. Technicians must remove all residue and apply a uniform anti-rust barrier before the mold is released to the rack.

Minor PM: Restoration & Lubrication

This interval focuses on restoring vent depths and preventing metal-to-metal galling on slides and lifters. Proper execution of Minor PM ensures the tool history remains traceable, allowing for adjustments to the baseline interval based on actual wear data.

Standard PM: Seal Replacement & Flow Verification

Standard PM targets the cooling and hot runner systems. All dynamic seals are replaced by policy to prevent unplanned leakage, while heater resistance is measured against the original T0 baseline to detect early-stage electrical drift.

Major Overhaul: Mechanical Baseline Reset

An overhaul is a "Baseline Reset" involving a full teardown and replacement of all wear components. This ensures how maintenance records support mold validation and tool approval for high-risk programs. FAI or validation package updates are triggered if CTQ features or appearance are impacted by the overhaul.

How to define an allowed PM drift window:

We allow a "PM Drift" of ±10% only for Level 1 tools under engineering supervision. For Level 3 tools (Hot Runner / GF-filled), zero drift is recommended because gate wear, vent fouling, and electrical drift accelerate rapidly beyond the baseline threshold. All drift events must be approved by engineering and recorded in the tool log.

What to Inspect at Each PM Event: System-Level Checklist and Acceptance Criteria

Each PM event should verify whether critical mold systems remain within the tool’s working baseline before restart. Use the following system-level checklist to define what must be inspected and restored before the mold is released. For pre-release review, refer to our static inspection checklist.

Vents and Parting Line

Vent Depth Restoration: Clean gas deposits and verify that vent depth remains within the tool’s approved range (typically 0.015–0.04 mm, resin dependent) to prevent burn marks.
Parting Line Integrity: Inspect for flash witness or hobbing via blueing agent check; ensure 100% metal-to-metal contact on shut-off faces.
Fouling Removal: Methodically remove gas plating from the cavity using non-abrasive cleaners to maintain surface finish baseline.

Vent depth and parting line inspection on an injection mold during preventive maintenance

Ejection System

Flushness & Wear: Check ejector pins for galling or scoring; verify pins retract flush with reference surfaces to prevent witness marks.
Lubrication Policy: Remove aged grease; apply high-temp compatible industrial lubricant to all pins and return pins per tool history cards.
Return Force: Confirm return springs provide adequate force for repeatable ejection and full plate recovery without delay.

Chinese factory engineer checking ejector pins and lubrication during mold preventive maintenance

Slides and Lifters

Clearance Baseline: Measure play in side-actions against the approved baseline. Clearance growth approaching 0.05 mm triggers wear plate review.
Gibs & Interlocks: Inspect for uneven wear or heat discoloration on gibs; verify side-actions engage without noise or bumping.
Required Record: Log all clearance measurements in the tool history card for recording PM events and replacements.

Injection mold slide and lifter inspection showing wear plates and side-action clearance areas

Cooling Circuits

Circuit Flow Test: Compare flow rate per individual circuit against the T0 baseline; a >10% drop indicates scaling or blockage.
Pressure Decay/Leak Test: Verify no detectable leakage under 80 psi static pressure for 10 minutes.
O-Ring Policy: Replace all dynamic seals per Standard PM policy regardless of visible condition to eliminate restart downtime.

Cooling circuit flow and leak test setup for injection mold preventive maintenance

Gates, Inserts, and Shut-offs

Gate Vestige Control: Check for gate erosion or radius wear under magnification; address fill variation or degating issues.
Shut-off Sharpness: Restore sharp edges on vertical shut-offs if mismatch or parting-line witness is detected.
Seating Integrity: Ensure inserts are seated without debris to prevent dimensional shifts or debris-induced stress.

Gate, insert, and shut-off inspection on an injection mold during preventive maintenance

Hot Runner and Valve Gate

Electrical Check: Measure heater and thermocouple resistance; a >5% drift from cold baseline triggers investigation for moisture or wiring faults.
Valve Pin Actuation: Verify smooth travel of valve pins; check for carbon buildup or nozzle-tip drooling.
Thermal Integrity: Inspect insulation boards for damage to prevent heat loss and unstable process windows.

Chinese factory engineer checking hot runner heater resistance during mold preventive maintenance

What Acceptance Criteria Should Be Met Before Mold Restart?

Maintenance is not complete when the mold looks clean; it is complete only when critical systems are verified against the qualified baseline and the release criteria for restart have been met. We utilize a quantitative matrix to ensure every tool released from the toolroom complies with our acceptance criteria after mold maintenance and restart.

Check Item	Acceptance Limit	Method	Evidence Required	Action if Out of Limit
Parting Line Contact	100% blue-transfer on shut-offs.	Blueing agent press test.	Blue-check photo	Re-blue, restore surface.
Cooling Flow Rate	±5% of qualified T0 baseline.	Per-circuit flow meter.	Per-circuit log	Clean/repair circuit.
Heater Resistance	±5% of qualified baseline.	Multimeter Ohm check.	Resistance record	Investigate wiring/heater.
Static Leak Test	No detectable loss (Defined Condition).	80 psi pressure decay test.	Signed leak record	Replace O-ring & retest.

Visual Condition and Contact Checks

Beyond cleanliness, "contact" is the primary defense against flash. Technicians must perform a blueing agent check on all primary parting lines and complex shut-offs.

Any dead spot in contact should be treated as a flash risk because it may indicate steel mismatch, local wear, or incomplete shut-off contact under molding pressure. The mold should not be released until 100% transfer is achieved and photographed.

Blue-check contact test on mold parting line for post-maintenance acceptance

Cooling Flow and Leak Test Limits

Each cooling circuit must be verified individually against its qualified baseline. A reduced flow reading may indicate scaling, restriction, assembly error, or seal-related blockage.

The mold must not be released until the affected circuit returns to the accepted range. We mandate a static 80 psi pressure decay test for 10 minutes (or as defined by the tool record) to ensure no seals were pinched during reassembly.

Cooling flow and leak test setup for injection mold maintenance acceptance

Heater and Thermocouple Resistance

For hot runner systems, we perform two distinct electrical checks: heater Ohmic resistance and thermocouple continuity/signal stability. These values are compared against the original qualified baseline.

Resistance drift is often an early sign of moisture-related instability or heater aging. Molds remain on hold for restart if electrical values drift outside the 5% tolerance window, requiring investigation before being released to production.

Hot runner heater and thermocouple baseline check during mold acceptance after maintenance

Part Restart Criteria Before Production Release

The final gate is the First Qualified Shot. After the mold is re-installed, the first samples must be checked against the mold validation guide. This include verifying CTQ dimensions, cosmetic surfaces, and flash-free performance.

Validation-level evidence is required when the maintenance event or overhaul may affect CTQ features or regulated program compliance. Only after formal QA approval of the restart samples are the maintenance records finalized and the tool returned to full production.

When NOT to Wait for the Next PM Interval: Immediate Mold Inspection Triggers

A cycle-based PM schedule is a baseline, not a release guarantee. If the process begins to drift, defects cannot be corrected by normal setup adjustment, or the tool shows mechanical instability, the mold must be pulled for immediate toolroom inspection. Refer to our defect symptoms troubleshooting guide to evaluate whether the root cause is tool-driven.

⚠️ Flash Increase at Parting Line

Symptom Heavy flash at shut-off faces that persists after process optimization.

Why Risk Waiting? Escalation to permanent steel hobbing or crushed shut-off edges.

Immediate Action Stop production; blue-check parting line contact; confirm tool-driven mismatch before restart.

⚠️ Burn Marks & Vent Fouling

Symptom Repeated diesel burns (gas traps) at the end-of-fill or rib ends.

Why Risk Waiting? Gas plating can pit the steel surface, requiring expensive re-polishing.

Immediate Action Do not rely on speed reduction; pull tool to clean vent paths and verify depth baseline.

⚠️ Sticking or Unstable Ejection

Symptom Parts sticking in cavity or ejector pins failing to retract smoothly.

Why Risk Waiting? Risk of pin bending, galling escalation, or secondary steel damage.

Immediate Action Inspect for common mold failures; check pin clearances and lubrication immediately.

⚠️ Cooling Flow Drop or Leakage

Symptom Cycle time drift (flow loss) or water presence in parts/cavity (leak).

Why Risk Waiting? Internal scaling or seal failure can cause catastrophic part warping or mold rust.

Immediate Action Flow-test per circuit; shutdown immediately for leakage; replace seals before restart.

Maintenance Policy: Each trigger-based pull must be recorded with the cycle count at stop, defect symptom, suspected mold system, and the corrective action taken before release.

Featured Snippet Answer: A mold should be serviced immediately when flash, burn marks, sticking, or hot runner drift appears and cannot be stabilized by normal setup. These triggers indicate that vent fouling, shut-off wear, or seal failure has exceeded safe limits, requiring immediate toolroom inspection to prevent permanent steel damage.

What Maintenance Evidence Should Be Recorded for Traceability and Release?

Mold maintenance is not complete when the work is finished; it is complete when the maintenance event leaves a traceable record that supports release, future PM planning, and program-level audit requirements. We mandate the following documentation to ensure every tool history card is restart-ready and compliant with traceable quality control.

Evidence Item	Event Node (Collected At)	Record Type	Record Owner	Release Gate Status
Visual Inspection	Disassembly & Pre-Release	As-found / As-left photo record	Tooling	Required before release
Cooling Performance	After assembly, before release	Per-circuit flow / leak test record	Tooling / QA	Required before release
Electrical Integrity	Standard/Major PM close-out	Resistance and insulation log	Tooling	Required for hot runner release
Wear Components	At component replacement	Replacement log vs. spare history	Tooling / Stores	Supporting history record

As-found and as-left photo record of mold parting line and vent condition

As-found and as-left condition photos

Capture high-resolution photos of the parting line, vent areas, shut-offs, and gate region before and after maintenance. These records document fouling, flash witness, and the successful restoration of steel contact surfaces required for release judgment.

Cooling flow and leak test record for injection mold maintenance release review

Cooling flow and leak test records

Record flow rate for each cooling circuit separately and compare it to the qualified T0 baseline. Maintenance release is held until leak-test results are cleared and flow values are restored to the accepted production range.

Hot runner heater and insulation resistance log for mold maintenance traceability

Hot runner electrical resistance log

Compare heater and insulation data by zone against the qualified baseline to identify resistance drift, unstable thermal response, or early moisture-related insulation issues before the tool returns to the press.

Spare parts consumption record for ejector pins, springs, and seals in mold maintenance

Replaced wear parts and consumption

Log each replaced pin, spring, or wear plate by part number and PM event. This data supports your practical spare parts list for preventive replacement planning and repeat-failure analysis.

Engineering Policy: A maintenance record is not complete unless it can be traced to Tool ID, PM event, cycle count at close, corrective action, and the next due interval. For automotive or controlled medical programs, these records must align with internal validation-control and traceability requirements.

Special Maintenance Requirements for Abrasive, Corrosive, Optical, and Regulated Mold Programs

A generic PM schedule is not enough when the mold runs abrasive or corrosive resins, supports optical or mirror-polish surfaces, or belongs to a regulated automotive or medical program. In these cases, gate wear rate, vent condition, surface protection, and record traceability must be controlled more tightly than a standard baseline schedule allows. For these programs, the standard PM interval is only the starting point; actual maintenance release should follow wear trends rather than cycle count alone.

Gate and shut-off wear on an injection mold running GF-filled resin showing microscopic erosion

GF-Filled Resins & Abrasive Wear

Typical Materials PA66 GF30+, PBT GF, PPS, and Carbon-filled compounds.

Maintenance Risk Rapid erosion of gates, sub-gates, and sharp shut-off edges.

What Must Change Shorten Minor PM aggressively to around 5,000 cycles. Gate and shut-off condition becomes release-critical.

What Must Be Recorded Record gate-edge condition and shut-off wear using visual comparison against the mold steel choice and wear mechanisms for abrasive resins.

Vent fouling and corrosion-sensitive mold surface after PVC or FR resin production

Corrosive & FR-Rated Resins

Typical Materials PVC, POM, and Flame-Retardant (FR) grades.

Maintenance Risk Acidic outgassing causing surface pitting and vent "gas plating."

What Must Change Immediate EOJ cleaning and residue neutralization. Vent depth restoration becomes release-critical every 10k cycles.

What Must Be Recorded Log vent depth readings, deposit buildup, and any early pitting or plating loss observed before release.

Mirror-polish mold cavity surface inspection for optical or visible plastic parts

Optical Surfaces & High-Polish Risk

Typical Scenarios PC Lenses, light-guides, and mirror-polished A-class surfaces.

Maintenance Risk Irreversible scratches or haze caused by improper cleaning contact.

What Must Change Zero-touch protocols; no abrasive wiping. Cosmetic cavity state becomes release-critical.

What Must Be Recorded Document any scratch, haze, or residue risk on optical areas; require cosmetic-surface confirmation before restart.

Tool history card and traceability records for regulated injection mold maintenance programs

Traceability for Regulated Programs

Typical Industries Automotive (IATF 16949) and Medical (ISO 13485).

Maintenance Risk Non-compliance during audit due to broken record linkage.

What Must Change Record completeness becomes release-critical. All work must link to specific Tool and Cavity IDs.

What Must Be Recorded Log PM event ID, cycle count at close, and link to IATF 16949 certified manufacturing requirements.

Engineering Note: These controls are not required at the same level for every mold. They are additional safeguards for tools where wear, corrosion, surface sensitivity, or traceability failure carries a higher commercial or compliance risk.

How to Implement Mold PM in Production: Ownership, Baseline Control, and Restart Logic

Departmental Responsibility Matrix

A cycle-based PM schedule only works when cycle counting, maintenance execution, and restart release are owned by defined functions. No maintenance release should be authorized based on production convenience alone.

Production Owns machine/MES cycle count source and EOJ handling; does not bypass the release gate.

Tooling Owns PM execution, replacement logs, and findings; proposes interval adjustments based on wear.

Quality (QA) Owns restart sample approval and CTQ confirmation; verifies maintenance records before release.

Note: Any planned PM drift beyond the baseline interval must be approved by tooling or process engineering and recorded in the tool history.

Chinese factory engineers reviewing mold cycle count and tool history record before PM release

Baseline Definition and Evolution

For a new mold, the first due count is a starting estimate based on tool structure, resin abrasiveness, and target life. This baseline is not fixed; it must be refined after early PM events using observed gate wear, vent fouling rate, and restart performance to avoid both under-maintenance and unnecessary teardown costs.

Interval Re-baselining after Overhaul or ECN

After a major overhaul, the PM interval may be re-baselined once critical wear items and contact conditions are restored. While the physical cycle count history remains traceable, the next due interval is recalculated from the qualified post-overhaul state. Any engineering change management in injection molds affecting gate geometry, cooling layout, or shut-off contact should trigger an immediate interval review.

Data-Driven Interval Adjustments

Interval adjustment should be based on observed wear trends, recurring defects, restart scrap levels, and the actual replacement frequency of wear components. This ensures the mold stays within a qualified operating window where wear remains controlled. For high-output programs, this is best supported by process window validation after major mold maintenance to confirm the tool's performance remains stable after restart.

A PM event is not considered closed until the work is finished, the evidence is recorded, the next due count is updated, and any required restart approval has been released.

What Should an Injection Mold PM Schedule Template Include?

An effective PM template must capture more than just a date; it must provide the objective data needed to support release decisions and interval refinements. Our standard Excel and PDF templates are structured to meet US engineering audit requirements, ensuring no critical tool ID or cycle threshold is missed.

Excel PM Schedule (Scheduling Control)

Tool & PM Event ID Links each entry to a specific mold and unique maintenance event for lifecycle traceability.

Cycle Threshold Logic Calculates "Next Due" count based on Tool Risk Level (Level 1, 2, or 3) and actual wear history.

Release Status Flag Real-time indicators: Open, Due, Hold (unreleased), or Production-Ready.

PM Level Selector Standardizes whether the next gate is a Minor PM, Standard PM, or Major Overhaul.

PDF Checklist (Event Execution)

Header Data Mandatory Tool ID, PM Event ID, and Cycle Count at the start of the service event.

Acceptance Criteria Defines the quantitative pass/fail limits for circuit flow, leak tests, and electrical Ohm logs.

Corrective Action Log Documents specific work taken (Cleaned, Restored, Replaced) per system component.

Sign-off Hierarchy Technician completion, Tooling Reviewer, and QA Release Approver signatures.

Download PDF PM Checklist Template

Traceability and Interval Refinement

A maintenance record is not an isolated document. Every completed PM event must update the tool history card for injection molds. This linkage allows engineers to track wear trends and adjust future PM intervals based on evidence rather than assumptions.

For tools undergoing a Major Overhaul, ensure the injection molding trial record template is attached to establish a new performance baseline for cooling flow and part dimensions before production resumes.

Injection Mold Maintenance Schedule FAQ

How often should an injection mold be serviced by cycles?

Injection mold service intervals should follow tool risk level, not part count alone. As a baseline, simple cold runner tools may need Minor PM every 25,000–50,000 cycles, while hot runner or PA66 GF30+ molds often require much shorter intervals because wear, vent fouling, and gate erosion accumulate faster.

What is included in a mold preventive maintenance checklist?

A mold preventive maintenance checklist should cover vents, parting line contact, ejection, slides, cooling, and hot runner checks. It must define how each item is inspected, the acceptance baseline for restoration, and which evidence—such as photos, flow data, or electrical logs—must be recorded before maintenance release.

When should a mold be serviced before the next PM cycle?

A mold must be pulled for immediate service if you detect parting line flash, burn marks, sticking, cooling flow drop, or hot runner drift. These symptoms indicate that wear or fouling has exceeded the planned window and should be investigated before continued production accelerates steel wear or restart scrap.

What maintenance records should be kept for audit or validation?

Audit records must include as-found/as-left photos, quantitative cooling flow and leak tests, and hot runner electrical logs. For full traceability, all maintenance events and replaced wear parts should be linked to the tool history card by Tool ID, PM event reference, and cycle count at close.

Do hot runner and GF-filled molds need shorter PM intervals?

Yes. Glass-filled (GF) resins are highly abrasive, which accelerates gate erosion and vent blockage, while hot runner systems introduce risks of electrical drift. These high-risk tools often require maintenance intervals several times shorter than standard commodity-resin tools to ensure a stable and qualified operating window.

Chinese factory engineers reviewing mold drawing and PM sheet for interval and inspection planning

Upload Your Mold Drawing or PM Sheet for Interval and PM Scope Review

For hot runner, valve gate, PA66 GF30+, flame-retardant, or repeated cosmetic-risk tools, PM intervals should be checked against actual wear rate, vent fouling tendency, and record completeness instead of using a generic schedule. Upload your mold drawing or current PM sheet to review whether your inspection scope and release criteria are aligned with the tool’s specific wear risk.

Required Inputs: Mold drawing (2D/3D), current PM checklist, cycle history, and any repeated defect or downtime notes.

Request PM Interval Review

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