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Engineering Documentation

Injection Molding Trial Record Template for T0-T2 | Molding Condition Sheet, CTQ & Process Window

Injection molding trial record template preview with CTQ review, adjustment history, and approved process window fields

Track actual process data, CTQ results, adjustment history, and approved operating limits in one trial record. This template is built for T0-T2 mold trials where engineering, quality, and purchasing teams need more than machine settings—they need traceable process evidence for validation, production handoff, and repeatable startup.

The sheet covers trial stage, mold revision, machine identification, resin lot and drying actuals, actual melt and mold temperature verification, staged injection and V/P transfer settings, hold and cooling logic, part weight stability, CTQ review, adjustment history, and tooling, quality, and process release approvals.

It converts a good sample into a documented release baseline for startup, handover, and follow-up validation by recording actual values rather than nominal setpoints alone.

What This Trial Record Is Used For in T0, T1, and T2 Trials

Why a “Good Part” Is Not Enough

An acceptable sample is not a released production condition until the trial stage, mold revision, machine ID, resin lot, actual process data, and approval status are documented.

  • A single good sample does not equal a repeatable production condition.
  • Machine memory is not a controlled validation record.
  • The value of this record is that it locks process settings, measured results, and change history into a controlled baseline.

Evidence for Engineering, Quality & Purchasing

This structured record supports engineering review, quality release, and supplier approval before the next trial or production stage.

  • Engineering: Confirm that process conditions are recorded as actual values, not only machine settings.
  • Quality: Trace CTQ results directly back to the recorded thermal and pressure conditions.
  • Purchasing: Verify release status, revision control, and sign-off discipline before program handoff.

When to Update This Record

This trial record should be updated whenever the approved baseline changes during T0, T1, or T2 sampling. Updates must include new settings, reason for change, and updated release status:

  • Immediately after any engineering change management or tool modification.
  • Following a machine transfer or material lot change.
  • Any cycle optimization that may affect CTQ dimensions, part weight stability, or cosmetic appearance.

What Fields Are Included in the Template

This template records the traceability, setup, process, CTQ, and release data needed to review a mold trial before the next sampling or production stage. It gives engineering, quality, and purchasing a documented record of what was run, what changed, and what was approved.

A. Project, Mold, Machine, and Resin Traceability

This section identifies the trial baseline with part name, mold revision, machine tonnage, cavity count, and resin lot number so the sample can be traced back to a specific tool, machine, and material batch.

B. Material Preparation and Drying Verification

Records actual dryer temperature, drying time, and moisture status to verify that the resin was prepared under controlled conditions. Reference our material selection guide for lot-specific preparation requirements.

C. Mold and Machine Setup Data

Records the actual mold and machine setup state used during the trial, including clamp force, ejector stroke, slider sequence, and hot runner manifold settings.

D. Thermal, Filling, V/P Transfer, and Hold/Cooling Data

This section provides the actual process evidence used to judge fill behavior and gate freeze stability by recording melt temperature, transfer position, and actual hold/cooling durations.

E. CTQ Review, Adjustment History, and Approved Process Window

Connects CTQ results to change history and defines the approved operating range that can be released to production or the next process window validation stage.

Section Required Fields Purpose & Criticality Evidence Type
Traceability Mold ID, Revision, Machine No., Resin Lot & Humidity Links the trial to the correct mold revision and machine configuration for release and audit control. Batch Record
Drying Actual Temp, Drying Time, Regrind Ratio, Moisture Level Prevents hydrolysis and dimensional instability by verifying material preparation before sampling. Verified Actual
Thermal Actual Melt Temp, Barrel Zones, Mold Circuit Temps Controls polymer viscosity and cosmetic appearance across different production shifts. Measured Value
Filling Speed Stages, Fill Time, Actual V/P Transfer Position Maintains volumetric fill consistency and prevents over-packing or cavity imbalance. Process Evidence
Hold/Cooling Hold Pressure, Hold Time, Cooling Time, Cycle Actual Stabilizes part weight and secures dimensional repeatability for CTQ features. Verified Result
CTQ Review Nominal, Spec, Actual Values, Pass/Fail Release Correlates dimensional approval status directly to the recorded molding conditions. CMM/Measurement
History Log: Before Change, After Change, Reason, Result Demonstrates change discipline and engineering logic during the tuning process. Revision Log
Process Window Target, Acceptable Range, High/Low Action Limits Secures the released startup baseline for production handover and repeatability. Release Limit

Why These Parameters Matter More Than Machine Setpoints

In professional scientific molding, machine setpoints are merely proxies. US procurement and engineering teams require data that reflects the actual state of the polymer and the stability of the process window.

Actual Melt Temperature vs. Barrel Settings

Barrel heater settings do not account for shear heating or residence time. Recording actual melt temperature proves to buyers that you are monitoring the real material state, ensuring molecular integrity and color consistency.

V/P Transfer and Fill Time as Repeatability Signals

Stability in V/P transfer points and fill time is the primary indicator of volumetric fill consistency. Fluctuations here signal gate freeze behavior inconsistencies and high dimensional stability risks for CTQ features.

Hold Pressure, Hold Time, and Gate Freeze Verification

Scientific verification of gate freeze ensures the cavity is fully packed before the runner solidifies. "A supplier that cannot explain gate freeze logic is not giving you a validated baseline." This verification is central to our injection mold validation guide for tooling approval.

Part Weight Stability and CTQ Correlation

We mandate a minimum of 20–50 consecutive shots for stability checks. For precision components, we target ±0.01g weight deviation. This discipline ensures every CTQ correlation study is based on a stabilized process, as documented in our injection part fai report template.

How to Fill Out the Record So It Can Support Validation and Production Handover

Record Actual Values, Not Just Set Values

Engineering decisions should be based on measured data because dryer and controller setpoints are only target values, not release evidence. Actual values—such as measured melt temperature, moisture level, and cooling circuit status—should be reviewed against the approved operating range for a robust validation review.

Actual Melt Temp Cycle Time Actual Cooling Flow Rate

Log Every Process Change with Reason and Result

A trial record should document each process adjustment in sequence. Every entry must identify the initial symptom, the change made, the resulting part response, and the final disposition. Each log entry is then transferred into the mold trial issue tracking sheet for systematic corrective-action closure.

Before Change After Change Adjustment Reason

Separate Cosmetic Findings from CTQ Failures

Defects must be classified by their validation impact before release or handover. Cosmetic findings should be separated from fit, sealing, or assembly CTQ failures to determine if the issue requires tooling correction, dimensional review, or customer-facing approval routes before the final release sign-off.

Define the Approved Range, Not Only a Single Condition

A single nominal condition is not enough for production release. The record must define the approved operating range, including upper and lower limits where the process remains stable. This range serves as the mandatory baseline for startup control and production handover within our process window study.

What This Template Does Not Replace

The trial record is the process-condition document in the validation stack, not the full acceptance, dimensional, or regulated submission package.

It Does Not Replace a Mold Trial Checklist

The trial record captures process conditions, but a separate checklist is still required for mold mounting checks, utility confirmation, safety items, and startup readiness. Use the mold trial checklist for t0 to t4 trials to confirm hardware readiness before sampling.

It Does Not Replace an FAI or Dimensional Report

This template establishes the process baseline, but it is not a dimensional evidence package. Critical features still require an injection part fai report to document nominal values, tolerance limits, measured results, and pass/fail approval.

It Does Not Replace PPAP Submissions or Regulated Validation Records

Regulated programs require documentation beyond a condition sheet. Use the injection molding ppap documents checklist for automotive submission requirements, and treat medical validation records as a separate set of IQ/OQ/PQ and traceability controls.

Program-Specific Verification Stack

These program requirements cannot be covered by a molding condition sheet alone because they require separate approval, traceability, and regulated-document controls:

  • Automotive / PPAP Requires full PPAP elements such as PSW, Control Plan, MSA, and batch-level traceability for final part approval.
  • Medical Validation Mandates formal IQ/OQ/PQ protocols, stricter lot control, cleanroom environment logs, and documented change discipline.
  • General Export / OEM Typically requires material certification, CoC records, drawing revision control, and basic packaging/labeling verification.

PDF Preview and Download: Molding Condition Sheet Template

Preview the Trial Record Field Layout PDF preview of molding condition sheet template with CTQ and process window fields

Download Options

This PDF is a one-page condition sheet template, intended for T0-T2 mold trials where the team needs a controlled record of actual process conditions, CTQ review, and release limits.
Download PDF Trial Record Template

Note: One-page trial record layout for T0-T2 sampling. Designed to capture actual process data, not only nominal machine settings, before startup release or production handoff.

What the PDF Includes

  • Trial stage, mold revision, and traceability section
  • Resin preparation and drying verification actuals
  • Actual mold and machine setup configuration data
  • Filling, V/P transfer, and hold/cooling process evidence
  • CTQ measurements, pass/fail review, and trial result summary
  • Adjustment history and approved process window limits

Example of a Controlled Trial Record Review

This example shows what a controlled trial record should contain before the next validation review or production handoff.

Filled trial record example with CTQ results and release review for molded part
Engineering Evidence: Filled-out Record Example

Trial Dataset Case: PA66 GF30 Sampling

Trial StageT1 Review / T2 Release Candidate
Mold RevisionRev.B / Steel-Safe Update 02
Resin GradePA66 + 30% Glass Fiber
Actual Melt Temp282°C (Verified via probe)
Transfer Position14.20 mm
Adjustment ResultV/P tuned to 14.20mm (reduced flash)
Hold Pressure/Time620 Bar / 5.5 Seconds
Weight Stability±0.008g (over 50 shots)
CTQ ResultDimension A: 10.05mm (Spec: 10.0±0.1)
Release StatusApproved for T2 validation review

Technical Review Context

  • Supplier documents actual values: The record shows measured melt temperature, transfer position, and weight stability instead of relying only on nominal machine settings.
  • Adjustment history tracking: The log identifies exactly what was changed (V/P position), why it was changed (flash reduction), and the resulting stability outcome.
  • Release status control: The approved status serves as the basis for the next stage, ensuring that quality documents and FAI deliverables are linked to a stabilized process.
  • Controlled production transfer: The recorded condition serves as the mandatory startup reference for the next validated stage or mass production release.

Related Trial Documents for the Trial-to-Validation Workflow

These documents cover the complete trial workflow from initial sampling plans and run-off readiness to issue closure, process verification, and final tooling approval.

Step 01 / Planning

T0, T1, T2 Mold Trial Guide & Sampling Plan

Use this guide to define T0-T2 trial objectives, sampling scope, and review criteria.

Review Trial Stages → Step 02 / Readiness

Injection Mold Trial Checklist for T0-T4 Run-Off

Confirm mold mounting, utility checks, and pre-trial readiness before first sampling.

Open Checklist → Step 03 / Corrective Action

Mold Trial Issue Tracking Sheet & Corrective Action Log

Log defects, process changes, and corrective actions after each trial round.

Get Template → Step 04 / Process Verification

Standard Process Sheet & Process Window Study

Define the approved operating range for startup control and release review.

Review Process Window → Step 05 / Validation Approval

Injection Mold Validation Guide for Tooling Approval

Review the evidence needed for tooling approval and dimensional release sign-off.

Review Validation Guide →

Injection Molding Trial Record FAQ

What is the difference between a molding condition sheet and a mold trial report?

A molding condition sheet records the actual process conditions used to produce repeatable parts and defines the approved operating range for release. A mold trial report is a broader engineering package that documents trial objectives, findings, defects, tooling issues, CTQ results, and next-step actions within the injection mold validation guide.

When should a trial record be revised?

A trial record should be revised after any tool change, machine transfer, major resin lot shift, or process change that affects CTQ dimensions, part weight stability, or cosmetic appearance. According to the T0 T1 T2 mold trial guide, the revised record must include updated actual values, resulting part response, and the new release status.

What makes a trial record useful for production handoff?

A trial record becomes useful for handoff when it contains actual process data, CTQ confirmation, and an approved operating window. It must also feature release sign-off fields that production, quality, and process owners can follow during startup to ensure full accountability and repeatable setup.

Send Your Drawing for Trial Readiness Review

Preparing for T1 or T2 sampling? Send your CAD file, resin grade, CTQ features, and trial objectives for a trial-readiness review covering mold trial record fields, startup window risks, and validation checkpoints.

This review identifies missing trial record fields, CTQ-related process risks, and minimum validation checks needed before sampling release.
Request a Trial-Readiness Review
Trial Record Setup CTQ Feasibility Process Window Risk