G6
VERIFY / FAT + SAT

Injection molding machine FAT and SAT need one agreed acceptance matrix.

Factory and site tests answer different questions. Define scope, configuration, conditions, measurement, responsibilities and deviation closure before the machine is built or a performance result is promised.

ANSWER FIRST

Write the test protocol while requirements can still change the order.

A late checklist can only observe what was supplied. An early acceptance matrix connects every important requirement to objective evidence, a responsible party and a decision if the result differs.

Connect acceptance to machine selection
Protocol control fields
  • Requirement, source and revision
  • Factory, site or document-review stage
  • Configuration and test conditions
  • Method, instrument, sample and acceptance rule
  • Owner, witness, evidence and deviation path
Add acceptance scope to the RFQ
STAGE A / FAT

Verify the released build before shipment.

Use the available factory configuration to check identity, functions, documents, interfaces and any contracted mold/material trial. Record temporary utilities and missing final-site elements.

  • Order/configuration and document review
  • Functional, alarm and recovery checks
  • Factory-scope interfaces and integration
  • Defined mold/material evidence where included
STAGE B / SAT

Verify the installed cell in its site conditions.

Check transport/reassembly, released utilities, final equipment, site interfaces, training and any production conditions that could not be represented at the factory.

  • Installation and shipping-condition record
  • Final utility, safety and interface checks
  • Site mold/material and integrated-cell trial
  • Training, documents and operational handover
ACCEPTANCE PACKAGE

Six controls make the test repeatable and reviewable.

The package should be project-specific. A generic signed checklist is weak evidence when configuration and conditions are missing.

01

Requirements matrix

Map each contractual machine, option, interface, document and performance requirement to a test, review or recorded exclusion.

02

Configuration baseline

Identify machine, injection unit, screw, software, options, robot, auxiliaries, mold, resin and document revisions used for the test.

03

Test conditions

Define utilities, ambient state, warm-up, mold/material conditioning, cavities, start condition, duration, sampling and downtime treatment.

04

Measurement plan

Name every metric, instrument, method, sample size, calculation, tolerance, calibration/status evidence and responsible observer.

05

Responsibility matrix

Assign preparation, operation, supply, observation, signoff, data retention, travel, retest and corrective-action responsibility.

06

Deviation control

Record issue, requirement affected, evidence, containment, owner, due date, retest method, residual risk and final closure status.

FAT / SAT MATRIX

Assign each requirement to the stage that can prove it.

The matrix is a planning template, not a universal legal or technical acceptance procedure. Adapt it to the contract, machine, cell and destination.

Acceptance areaFactory evidenceSite evidenceRecord
Identity & configurationVerify nameplate/order configuration, installed options, software and supplied equipment against the released baseline.Verify received/reassembled configuration, shipping condition and any approved site change.Configuration record, photos, versions and deviation list
DocumentsReview agreed drawings, manuals, parts lists, settings/backups, test records and destination-document scope.Confirm final revisions, site changes, training records, backups and handover location/access.Document register with revision and status
Safety functionsFunctionally check agreed guards, interlocks, emergency stops, modes, alarms and integrated equipment under the factory setup.Recheck the installed cell, site interfaces and modifications within the applicable risk-assessment and legal process.Test steps/results plus open risk or conformity actions
Dry cycle & alarmsExercise agreed motions, limits, sequences, interlocks, alarms, recovery and option functions without assuming production proof.Repeat functions affected by transport, reassembly, utilities, integration or site configuration.Signed functional checklist and alarm/recovery record
InterfacesTest available robot, mold, hot runner, peripheral, network and data interfaces included in the factory scope.Test the final connected equipment, safety chain, signal mapping, recipes/data and fault behavior.I/O, network, protocol/version and fault-test record
Mold/material trialIf contracted, run the defined mold, resin, cavities and cell scope against agreed process and quality checks.Repeat or complete the production trial with released site utilities, final equipment and operators as specified.Conditions, settings, samples, quality data and event log
Training & handoverCover agreed operation, setup, maintenance, safety information, backups and factory-specific open items.Complete site operation, integration, maintenance, escalation, spare-parts and ownership handover.Attendance, topics, competence/action record and signed punch list
PUNCH-LIST CONTROL

A failed step needs a controlled path—not a hidden note.

Closure should preserve the original result and the evidence that the agreed requirement was later met or formally dispositioned.

01

Record the deviation

Reference the exact requirement, test step, actual result, evidence and affected configuration.

02

Classify the impact

Separate safety/legal, functional, quality/output, documentation and cosmetic or administrative issues.

03

Agree disposition

Define containment, correction, concession if legally and contractually valid, owner, due date and access needed.

04

Retest the requirement

Use the agreed conditions and keep objective evidence rather than closing from a verbal update.

05

Close or carry forward

Sign the closure or move the item into a controlled site punch list with responsibility and consequence visible.

BUYER QUESTIONS

FAT and SAT acceptance FAQ

The answers keep commercial acceptance, production evidence and legal/safety responsibilities clearly separated.

01What is the difference between FAT and SAT for an injection molding machine?

FAT is normally performed at the supplier or integration location before shipment; SAT is performed after installation at the buyer's site. The contract must define the exact scope. Site utilities, final interfaces, reassembly and local integration often require checks that a factory setup cannot complete.

02Does a passed FAT prove the machine will meet production at site?

Not by itself. Compare factory and site utilities, mold, resin, auxiliaries, software, operators, ambient conditions and complete-cell configuration. Define which production evidence is required at FAT, repeated at SAT or deferred to a separate ramp-up test.

03Can FAT or SAT replace machine conformity and risk assessment?

No. Commercial acceptance tests can provide evidence for agreed requirements, but they do not replace the applicable design, conformity, installation, integration or site risk-assessment responsibilities. Keep those deliverables explicit and separate.

04How should cycle, output or part quality be tested?

Agree the exact mold, resin, cavities, conditioning, utilities, cell scope, warm-up/start point, run duration, downtime treatment, sampling, measurement equipment, quality criteria and calculation before the test. Record actual conditions and every deviation.

05What should be attached to an acceptance RFQ or purchase specification?

Attach the requirements matrix, configuration list, controlled drawings, utility and interface schedules, mold/material trial plan, quality method, document list, responsibility matrix, training scope, deviation process and signoff rules.

ACCEPTANCE / NEXT STEP

Put test conditions and responsibilities into the RFQ.

Attach the requirements matrix, configured cell scope, utility and interface schedules, mold/material plan, measurement method and deviation rules before quotation.

Build the machine brief
WhatsApp+86 134 1703 0422