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Actual site
Is this the actual site that will perform the work?
Robotics Factory Assessment Guide
Factory Capability Assessment for Robotics Manufacturing
How to verify whether a specific production site can manufacture, calibrate, test and scale a defined robotics product
A factory tour can show that equipment exists.
A capability assessment must determine whether the actual site can repeatedly manufacture, configure, calibrate, test and release the required robotics product under controlled conditions.
This guide explains what evidence should be reviewed before a factory is approved for a defined manufacturing scope.
What Is a Factory Capability Assessment?
A factory capability assessment is an evidence-based evaluation of whether a specific production site can perform the processes required to manufacture a defined product or component.
It examines the factory’s engineering support, equipment, tooling, operators, process controls, measurement systems, calibration, testing, quality records, traceability, maintenance and usable capacity.
The result should approve, conditionally approve or reject a defined scope. It should not approve a factory in the abstract.
A factory capability assessment should define
- The legal and operational site
- The product or component scope
- The required manufacturing processes
- Critical product characteristics
- Expected production volume
- Required calibration and testing
- Required records and traceability
- Applicable market and quality requirements
Factory capability cannot be established from a certificate, equipment list or factory tour alone. It requires product-specific evidence that the actual production site can control the required processes, people, equipment, measurement systems, calibration, testing, traceability and usable capacity. See the parent robotics manufacturing lifecycle for how factory assessment fits production readiness.
Factory Assessment vs Factory Audit vs Supplier Qualification
| Activity | Main question | Typical scope |
|---|---|---|
| Supplier qualification | Should the organization be approved? | Identity, ownership, capability, risk, quality and commercial suitability |
| Factory capability assessment | Can this site perform the required manufacturing scope? | Processes, equipment, people, measurement, testing and capacity |
| Factory audit | What evidence does the site provide against defined criteria? | Structured on-site or remote evidence gathering |
| Process audit | Is a defined manufacturing process adequately controlled? | One process or connected process sequence |
| Product audit | Does output meet the product requirements? | Product, sample, batch or unit |
| Product inspection | Does the inspected product conform at this point in time? | Specified units or lot |
| Social-compliance audit | Does the facility meet defined labor or ethical criteria? | Employment and workplace practices |
| Environmental audit | Does the facility meet defined environmental criteria? | Environmental system and compliance |
A factory audit is a method. Factory capability is the decision that the collected evidence must support.
provides current guidance on audit principles, audit-program management, audit conduct and auditor competence. It is guidance for auditing management systems, not a product-specific factory-capability certification.
Organization-level approval belongs to qualifying the supplier organization. Control plans, inspection and corrective action depth belong to building a robotics production quality system.
What Must a Factory Capability Assessment Prove?
The assessment should answer ten questions before a manufacturing scope is approved.
2
Requirements
Does the factory understand the product requirements?
3
Process ownership
Are all required processes internal, controlled or transparently outsourced?
4
Equipment
Does the equipment have the necessary range, accuracy and condition?
5
Tooling
Are tooling, fixtures and work instructions suitable for repeatable production?
6
People
Are the people performing critical operations demonstrably competent?
7
Measurement
Can the measurement systems reliably evaluate the required characteristics?
8
Calibration and test
Can the factory configure, calibrate and test the product correctly?
9
Traceability
Can the site maintain traceability and control changes?
10
Usable output
Can it achieve the required output without losing process control?
Required distinctions
- Equipment presence ≠ equipment capability
- Sample conformity ≠ process capability
- Nominal capacity ≠ usable capacity
- Management-system certification ≠ product-specific manufacturing capability
A factory may possess suitable equipment without having demonstrated that its complete manufacturing system can repeatedly meet the relevant robot specification.
What Is the Factory Capability Assessment Process?
1
Define requirements
- Product, part family, critical characteristics
- Processes, materials, volumes, calibration, testing, markets
2
Define assessment scope
- Legal entity, factory address, building, line
- Product family, processes, subcontractors, assessment date
3
Request preliminary evidence
- Process flow, equipment list, organization chart
- Certificates, capacity data, calibration and test records
4
Perform desktop review
- Identify evidence gaps and critical processes
- Define interview targets, sampling plan and questions
5
Confirm factory identity
- Actual site, equipment ownership, related companies
- Shared resources, subcontracting, shipping entity
6
Walk the process flow
- Incoming material through assembly and packaging
- Calibration, testing, release and rework loops
7
Review engineering
- Specification interpretation, DFM, tooling
- Failure analysis, calibration, test development, change support
8
Review production resources
- Equipment, tooling, people, instructions
- Maintenance and backup resources
9
Review measurement and test
- Measurement suitability, MSA, gage R&R
- Calibration, test coverage, software, reference equipment
10
Review production evidence
- Process records, yield, defects, rework
- Cycle time, traceability, corrective action, capacity
11
Classify findings
- Conforming, observation, improvement opportunity
- Minor, major or critical disqualifying gap
12
Make a scope-specific decision
- Approved, conditionally approved, development required
- Pilot only, or not approved
Why Must Factory Capability Be Assessed Against a Defined Scope?
A factory is not simply capable or incapable.
Capability exists in relation to a defined product, process, tolerance, material, production volume, test requirement and risk level.
A site may be capable of assembling a service robot but not manufacturing precision robot joints. It may be capable of machining housings but not validating gearbox geometry or robot accuracy.
Scope fields
- Factory legal name and address
- Building or production area
- Product category, model or part family
- Drawing revisions and critical characteristics
- Processes assessed and excluded
- Expected annual and maximum monthly volume
- Shift pattern and customer requirements
- Subcontracted processes
Capability decision applies only to
- Site
- Scope
- Product or process
- Volume range
- Conditions
- Validity period
- Open actions
How Should the Factory’s Actual Process Be Mapped?
Material receipt
Incoming verification
Storage and environmental control
Component or subassembly production
Special and outsourced processes
In-process inspection
Final assembly
Software provisioning
Calibration
Functional and performance testing
Nonconformance and rework loop
Packaging and release
For every step, record the process owner, inputs, outputs, equipment, tooling, operator qualification, parameters, inspection, records, failure reaction, subcontractor dependency and capacity.
Compare the documented process flow with what actually occurs on the factory floor. Capability gaps are often hidden in informal rework, shared equipment, manual adjustments or outsourced steps that do not appear in the original process map.
What Evidence Should Be Accepted During a Factory Assessment?
| Evidence level | Example | Relative strength |
|---|---|---|
| Claim | “We can hold this tolerance.” | Weak |
| Document | Procedure or equipment specification | Limited without implementation evidence |
| Observation | Process seen on the factory floor | Stronger but time-limited |
| Record | Historical measurement, maintenance or production record | Strong |
| Demonstration | Controlled trial using representative requirements | Strongest for unproven capability |
Capability decisions should not rely on a supplier statement when stronger evidence can reasonably be obtained.
Relevant to actual scope
Current
Traceable
Complete
Representative
Generated under controlled conditions
Consistent with other evidence
How Is Factory Engineering Capability Assessed?
Evaluate whether the site can interpret drawings and specifications; perform design-for-manufacturing and process-feasibility reviews; translate critical characteristics into process controls; develop process flows; select suitable equipment; design tooling and fixtures; allocate tolerances; diagnose manufacturing failures; develop inspection methods; support software provisioning; develop calibration methods and production tests; implement engineering changes; support product variants; and manage product and process documentation.
Evidence request
- Engineering organization chart
- Engineer qualifications
- Relevant project examples
- DFM reports and process-development records
- Tooling designs and failure-analysis examples
- Test-system examples and engineering-change records
Required distinction
- Sales engineering explains what the factory offers.
- Manufacturing engineering defines and controls how the product will be produced.
For design-transfer and industrialization context, see moving a robot prototype into production.
How Should Manufacturing Equipment Be Assessed?
For each critical machine, record the process, equipment category, manufacturer, model, serial number, age, working range, rated accuracy, demonstrated performance, control system, maintenance status, calibration status, utilization, backup resource and qualified operators.
Questions for each critical machine
- Can it perform the required process?
- Can it achieve the required range and tolerance?
- Has capability been demonstrated using representative material and geometry?
- Is the machine adequately maintained?
- Are programs and parameters controlled?
- Are operators qualified?
- Is there a backup if it fails?
- Is it shared with other customers or products?
- Is the real bottleneck elsewhere?
Robotics equipment examples
- CNC machining centers and gear measuring machines
- Coordinate measuring machines
- Motor winding and balancing equipment
- PCB assembly lines and torque-controlled fastening tools
- Cable and harness test equipment
- Bearing and press-fit equipment
- Leak or pressure test systems
- Robot calibration systems and force-torque calibration equipment
- Camera-calibration fixtures and end-of-line robot test stations
- Environmental or endurance test equipment
How Should Tooling and Fixture Capability Be Assessed?
Assess tooling design ownership, manufacture, revision, identification, storage, preventive maintenance, expected life, actual wear, spare tooling, repair capability, calibration where applicable, transfer rights and capacity.
Robotics-specific fixtures
- Joint assembly fixtures and bearing pressing tools
- Reducer alignment and encoder mounting fixtures
- Cable-routing and torque-reaction fixtures
- Robot-base alignment and sensor-alignment fixtures
- Camera-calibration targets and force-torque calibration fixtures
- Programming stations and end-of-line test fixtures
- Transport and packaging fixtures
A fixture that works only with experienced manual adjustment may support a prototype build but may not provide a controlled production process.
How Should Factory Personnel Capability Be Evaluated?
Review manufacturing engineers, process engineers, quality engineers, software or firmware engineers, calibration technicians, test engineers, maintenance technicians, inspectors, production supervisors, critical-process operators and assembly operators.
Evidence
- Role definitions and training requirements
- Training records and skill matrix
- Qualification tests and authorization records
- Retraining rules and shift coverage
- Temporary labor controls, turnover and supervision
Required distinction
- Attendance at training ≠ demonstrated competence
- Years of experience ≠ qualification for the current controlled process
What Should Be Reviewed in a Manufacturing Process Audit?
For each critical process, verify input and output requirements, process sequence, equipment, tooling, materials, operator qualification, controlled parameters, environmental conditions, measurement method, inspection frequency, acceptance limits, records, nonconformance reaction, change control, maintenance and capacity.
Requirement
Work instruction
Operator practice
Process parameter
Measurement result
Record
Reaction to failure
A process audit should connect documented requirements to actual factory practice and objective production evidence.
VDA 6.3 is one recognized process-audit framework, particularly in automotive supply chains. It may be referenced as an example of a risk-oriented process-audit approach, but it should not be presented as mandatory for all robotics factories.
What Is Process Capability?
Process capability evaluates how the output of a stable manufacturing process compares with defined specification limits.
It is not established from machine specifications alone.
The data should represent the actual process, material, equipment, operators and conditions relevant to the manufacturing scope.
Required prerequisites
- Specification limits are defined
- The measurement system is suitable
- The process definition is stable
- The sampling method is representative
- Known special causes have been addressed
- Data assumptions are reviewed
- Product and process revisions are recorded
Process capability should not be calculated first and justified afterward. Measurement validity and process stability must be evaluated before the capability index is treated as decision evidence.
NIST describes process capability as comparing the output of an in-control process with specification limits through indices such as Cp and Cpk.
How Should Cp and Cpk Be Used in a Factory Capability Assessment?
Cp compares the specification width with estimated process variation. Cpk also considers whether the process mean is centred between the specification limits.
Cp = (USL − LSL) ÷ 6σ
Cpk = min[(USL − μ) ÷ 3σ , (μ − LSL) ÷ 3σ]
Where USL is the upper specification limit, LSL is the lower specification limit, μ is the process mean and σ is the estimated process standard deviation.
NIST notes that capability indices depend on assumptions about process stability, data quantity and distribution. This guide does not apply a universal Cpk threshold without context.
Interpretation rules
- Do not use machine catalogue accuracy as process capability.
- Do not calculate capability using unverified measurement data.
- Do not mix product revisions or different process conditions.
- Do not use one short demonstration run as long-term capability evidence.
- Do not assume that one Cpk requirement is appropriate for every characteristic.
- Do not interpret a capable characteristic as proof that the entire factory or product is capable.
Robotics characteristic examples
- Shaft diameter and bearing fit
- Joint housing alignment
- Reducer mounting concentricity
- Encoder location and cable crimp force
- Fastener torque, robot-base flatness, sensor mounting position
What Is Measurement System Analysis?
Measurement system analysis evaluates whether the complete measurement process can generate sufficiently reliable data for the intended decision.
The measurement system includes the instrument, fixture, method, software, operator, reference, environment and part interaction.
AIAG describes measurement system analysis as a set of methods used to assess measurement-system quality so that manufacturing decisions are based on suitable data.
MSA considerations
- Resolution, bias, linearity and stability
- Repeatability and reproducibility
- Fixture, operator, part and environmental influence
- Software and calculation logic
A calibrated instrument does not automatically prove that the complete measurement system is suitable for the application.
What Is Gage R&R?
Gage repeatability and reproducibility is a measurement-system study used to estimate how much observed variation comes from the measuring equipment and from differences between appraisers or measurement conditions.
It is one part of measurement system analysis, not the complete MSA framework.
Definitions
- Repeatability: variation when the same measurement approach is repeated under the same defined conditions.
- Reproducibility: variation associated with different appraisers or other defined measurement conditions.
Factory-assessment questions
- Was the study performed on representative parts?
- Does the study cover the relevant operating range?
- Were appraisers representative of production users?
- Was the fixture included?
- Was part variation sufficient?
- Was the measurement method controlled?
- Is the study linked to the current instrument and process revision?
- Is the result suitable for the intended decision?
Do not treat gage R&R as a standalone decision topic. The purpose of this section is to determine whether factory measurement evidence can be trusted within the broader capability assessment.
How Should Factory Calibration Capability Be Assessed?
Review the measurement-equipment register, calibration intervals and status, reference standards, traceability chain, out-of-calibration response, environmental control, internal and external laboratory competence, measurement uncertainty where relevant, software version and record retention.
specifies requirements for a measurement-management system intended to provide confidence in the validity and reliability of measurement results. addresses competence, impartiality and consistent operation of testing and calibration laboratories.
Required distinction
- Instrument calibration confirms the relationship between an instrument and a reference.
- Measurement-system suitability determines whether the complete method is appropriate for the intended manufacturing decision.
- Robot product calibration determines or compensates for variation in the assembled robot.
How Should Special and Critical Processes Be Assessed?
For this guide, treat a process as special or critical where failure has a significant product or safety consequence; output cannot be fully verified later; verification would be destructive; process variation is difficult to detect at final inspection; or performance depends strongly on controlled parameters or operator technique.
Robotics examples
- Heat treatment, welding, brazing, adhesive bonding, potting
- Surface treatment, motor winding, magnet bonding
- Battery welding, cable crimping, bearing pressing
- Clean assembly, lubrication, sealing
- Software provisioning and safety-parameter loading
Assessment fields
- Process specification and qualified equipment
- Qualified operators and parameter limits
- Material and environmental controls
- Validation evidence and ongoing monitoring
- Maintenance, record retention, failure reaction
- Subcontractor controls
AIAG publishes special-process assessment frameworks for several automotive processes. These can be used as reference structures where relevant, but they are not automatically mandatory for robotics manufacturing.
Does ISO 9001 Certification Prove Factory Capability?
No.
ISO 9001 certification can provide evidence that a defined quality management system has been assessed.
It does not by itself prove that a specific factory has the engineering, equipment, process capability, measurement systems, calibration, testing or capacity required for a particular robotics product.
remains the current published requirements standard in July 2026, with its replacement expected in September 2026. The scope, site and certified entity should be checked rather than relying on the certificate logo alone.
QMS assessment areas
- Document control and training
- Supplier control and production control
- Inspection and calibration
- Nonconformance and corrective action
- Internal audit and management review
- Change control, complaints and continual improvement
Required distinction
- QMS certification: evidence about the management system and stated scope.
- Factory capability assessment: evidence about the ability of the actual site to perform the defined work.
Detailed inspection, nonconformance and corrective-action frameworks are covered in robotics quality systems.
How Should Incoming Material and Sub-Tier Processes Be Assessed?
Review approved suppliers and manufacturers, purchase specifications, incoming verification, material certificates, lot traceability, storage conditions, shelf life, counterfeit prevention, supplier changes, nonconforming incoming material and sub-tier process approval.
Required questions
- Which critical components are purchased?
- Which are made internally?
- Which processes are outsourced?
- Who approves sub-tier suppliers?
- How are supplier changes communicated?
- How is incoming identity verified?
- How are defects linked back to supplier lots?
Robotics examples
- Reducers, bearings, motors, encoders, controllers
- Sensors, PCBs, batteries, connectors, cables
- Castings, magnets, adhesives, lubricants
Organization-level sub-tier supplier qualification should follow robotics supplier qualification. Component-level sourcing context is covered under robot components.
How Does Maintenance Affect Factory Capability?
Factory capability depends on the sustained condition of production, measurement and test equipment.
A machine that achieved the required result once may not continue to do so without controlled maintenance, tooling replacement, calibration and failure-response processes.
Review
- Preventive and predictive maintenance
- Breakdown history and spare parts
- Critical and backup equipment
- Tool wear and software or machine-program backup
- Maintenance staffing, response time and restart verification
Continuity questions
- What stops production if this equipment fails?
- How long would recovery take?
- Can another machine use the same program and fixture?
- Would a machine change require requalification?
- Is critical technical knowledge held by one person?
What Traceability Should a Robotics Factory Demonstrate?
Manufacturing traceability connects the finished robot or component to the materials, components, process conditions, software, calibration, tests and rework history used to create it.
Unit-level traceability
- Product serial number and revision
- Critical component serial numbers and supplier lots
- Material batches, production date, line, operators or stations
- Hardware revisions and firmware or software versions
- Calibration result, test result, rework and deviation history
- Release status
Traceability challenge
Select one finished unit. Can the factory trace backward to critical components, process records, calibration, software version, test results and rework?
Then select one critical supplier lot. Can the factory trace forward to every affected production unit?
How Should Factory Production Capacity Be Assessed?
Production capacity is the output a factory can achieve under defined operating conditions.
Usable capacity must consider yield, downtime, maintenance, changeover, testing, calibration, rework, material availability and the constrained operation—not only nominal machine speed.
Usable output ≈ Available production time ÷ Effective constrained-cycle time
The model must include assumptions and should not be presented as a production guarantee.
Capacity inputs
- Available production time and shift pattern
- Equipment and manual cycle time
- Changeover, planned and unplanned downtime
- Yield, rework, test duration, calibration duration
- Operator and material availability
- Sub-tier capacity
Required distinction
- Nameplate capacity: theoretical equipment output
- Quoted capacity: supplier’s commercial statement
- Demonstrated capacity: output supported by production evidence
- Usable capacity: sustainable output after realistic losses and constraints
How Should Production Bottlenecks Be Identified?
Map operations
Collect cycle-time and availability data
Identify constrained operations
Review queues, blocking and starvation
Assess yield and rework load
Test alternative volume scenarios
Define capacity actions
Robotics-specific bottlenecks
- Precision gear inspection, motor winding, rotor balancing
- Joint assembly and encoder alignment
- Cable-harness production and firmware provisioning
- Robot geometry calibration and force-torque calibration
- Camera calibration, end-of-line testing, burn-in
Final assembly is not automatically the capacity constraint. A short, specialized calibration or test operation may limit the output of the complete factory.
What Is Factory or Production-Line Readiness?
Production-line readiness is the demonstrated availability and control of the resources required to execute the released manufacturing process.
It is more specific than general factory capability and should be assessed for the relevant product, line, volume and launch stage.
Readiness dimensions
- Released product definition and process flow
- Approved materials, available equipment and tooling
- Released work instructions and trained operators
- Suitable measurement systems, calibration and production tests
- Quality controls, material flow, traceability, capacity and escalation
| Concept | Question |
|---|---|
| Product readiness | Is the design ready? |
| Supplier readiness | Is the organization approved? |
| Factory capability | Can the site perform the required scope? |
| Line readiness | Are the required production resources prepared now? |
| Production readiness | Can the complete system proceed to the next production stage? |
See prototype to production for DFM, pilot builds and ramp sequencing.
How Should Robot Calibration Capability Be Assessed?
Possible calibration scopes include joint-zero calibration, encoder-offset calibration, robot-geometry calibration, tool-frame calibration, sensor calibration, force-torque sensor zeroing, camera-to-robot calibration, mobile-base calibration, payload configuration and battery or energy calibration.
Assessment evidence
- Calibration specification and reference artefact
- Reference-equipment status, fixture and software revision
- Environmental conditions and operator qualification
- Residual-error limits, repeatability and unit-level record
- Recalibration rule
Calibration fixture exists ≠ calibration process is controlled. A calibration result produced ≠ the result is sufficiently accurate and repeatable. One calibrated sample ≠ production calibration capability.
Where industrial robot performance claims are involved, provides performance criteria and related test methods for manipulating industrial robots. Safety scope may also involve and .
How Should Robot End-of-Line Testing Be Assessed?
Review test requirements, coverage, sequence, limits, reference equipment, fixtures, software, software revision control, hardware compatibility, data retention, false-pass and false-fail risk, failure reaction, rework and retest.
Robot test categories
- Power-up, firmware and configuration
- Communication, joint movement, I/O, brake operation
- Sensor operation and fault handling
- Safety-related functions and calibration verification
- Accuracy or repeatability where applicable
- Payload or torque, thermal behaviour, noise and vibration
- Battery operation, navigation or manipulation
End-of-line testing verifies the individual production unit. It does not replace validation of the design, manufacturing process or test system itself. Sampling plans such as may support lot inspection decisions but do not substitute for process capability.
What Capabilities Should Be Assessed for Different Robot Subsystems?
| Subsystem | Factory capabilities to examine |
|---|---|
| Mechanical structure | Machining, casting, welding, dimensional inspection, surface treatment |
| Robot joints | Bearing fits, reducer alignment, motor integration, encoder alignment, lubrication, calibration |
| Motors | Winding, magnet installation, balancing, electrical testing, thermal testing |
| Reducers | Gear manufacture, heat treatment, precision metrology, backlash testing, endurance |
| Controllers | PCB assembly, programming, electrical test, firmware control, traceability |
| Sensors | Assembly, alignment, calibration, environmental testing, signal verification |
| Cables and harnesses | Crimping, shielding, routing, continuity, flex-life controls |
| Batteries and power systems | Cell traceability, joining process, BMS programming, safety testing |
| Machine vision | Camera mounting, optics handling, lighting, intrinsic and hand-eye calibration |
| Final robot assembly | Mechanical integration, software provisioning, configuration, calibration, functional test |
| Mobile robot platform | Drive alignment, navigation sensors, battery system, localization calibration |
| End-effector system | Interface geometry, pneumatic or electrical test, load and functional verification |
How Should Factory-Assessment Findings Be Reported?
Each finding should record the assessment criterion, observed condition, objective evidence, requirement or expected control, capability impact, risk, required action, owner, due date, verification method and qualification consequence.
Conforming
Adequate relevant evidence was observed.
Observation
No current nonconformity, but future risk or weakness exists.
Minor gap
Limited weakness that does not currently invalidate the complete scope.
Major gap
Systemic or significant weakness affecting capability confidence.
Critical gap
Evidence indicates that the site cannot safely or reliably perform the scope.
These categories are the Yana reporting model for factory-capability decisions. They are not presented as universal audit-standard definitions.
How Should the Factory Capability Decision Be Made?
Approved
Relevant capability has been demonstrated for the defined scope.
Conditionally approved
Capability is acceptable subject to defined controls, limitations or corrective actions.
Development required
The site may become capable, but substantial evidence or process development is still required.
Pilot-only approval
The site may perform controlled prototype or pilot activity but is not approved for unrestricted serial production.
Not approved
Critical capability is missing or the evidence is insufficient for the defined risk.
Scope
Evidence quality
Open gaps
Risk severity
Product stage
Production volume
Containment
Corrective actions
Reassessment requirement
Validity period
Do not convert the complete assessment into one artificial percentage unless the scoring model, evidence weighting, disqualifying conditions and decision rules are publicly defined.
Common Factory Capability Assessment Failures
| Failure | Likely consequence |
|---|---|
| Audit begins without product requirements | Assessment becomes generic |
| Supplier chooses the demonstration product | Evidence may not represent the intended scope |
| Equipment list accepted without verification | Capability remains unproven |
| One conforming sample treated as process evidence | Variation remains unknown |
| ISO certificate accepted as product capability | Site-specific gaps remain hidden |
| Process flow does not include subcontractors | Responsibility and traceability gaps |
| Machine specification treated as process capability | Material, tooling and operator effects are ignored |
| Capability calculated using weak measurement data | Statistical conclusions are unreliable |
| Gage R&R treated as complete MSA | Bias, stability and other issues may remain |
| Operators are interviewed but not observed | Actual practice is not verified |
| Rework area is excluded from the audit | Process instability is hidden |
| Final yield reported without rework | Process performance is overstated |
| Quoted capacity is accepted without bottleneck analysis | Production commitments fail |
| Shared equipment is treated as dedicated capacity | Availability is overstated |
| Calibration method is undocumented | Unit-to-unit variation |
| Test software is not revision-controlled | Release results may be inconsistent |
| Findings are not linked to qualification | Audit becomes administrative |
Assessing Robotics Manufacturing Capability in China
China has broad manufacturing capability across machining, castings, gears, motors, encoders, electronics, batteries, cables, sensors, robot joints and final robot assembly.
However, the commercial supplier name may not identify the factory that owns or performs each critical process.
A capability assessment should therefore establish the operational structure below the level of the sales entity.
China-specific verification
- Legal company name and factory company name
- Factory address, site ownership or lease
- Related companies, export entity and bank-account entity
- Actual production line and equipment ownership
- Shared production resources
- Internal and outsourced processes
- Sub-tier factories
- Tooling, software, calibration and test-system ownership
- Production-record ownership
Factory-type classifications
- Complete robot OEM or ODM
- Contract manufacturer or final assembly factory
- Component, joint or actuator-module manufacturer
- Electronics manufacturing services provider
- Calibration and test provider
- System integrator
- Trading company or related-party factory
Evidence issues to examine
- Factory shown during audit differs from production site
- Equipment belongs to a related company
- Critical process is performed by an undisclosed subcontractor
- Test system belongs to a customer or external integrator
- Calibration depends on one external engineer
- Production records are Chinese-only or fragmented
- Serial traceability ends at final assembly
- Imported components have unclear continuity
- Capacity is shared across multiple brands or customers
- Export company does not control manufacturing changes
The objective is not merely to confirm that a factory exists.
The objective is to determine which entity, site, equipment, processes and technical knowledge will be responsible for manufacturing the product and whether that complete system has demonstrated the required capability.
This page does not publish rankings of Chinese factories.
Factory Capability Assessment Checklist
Scope
- Product scope defined
- Factory site defined
- Processes defined
- Critical characteristics identified
- Volume defined
- Standards and customer requirements identified
Factory identity
- Legal entity confirmed
- Production site confirmed
- Related companies disclosed
- Equipment ownership confirmed
- Subcontractors disclosed
Engineering
- Manufacturing engineering available
- DFM capability demonstrated
- Process-development evidence available
- Tooling capability demonstrated
- Failure-analysis capability demonstrated
- Change-control capability demonstrated
Equipment
- Required equipment present
- Range and accuracy suitable
- Condition acceptable
- Maintenance current
- Backup reviewed
- Programs controlled
Tooling
- Tooling identified and revisions controlled
- Maintenance defined and expected life understood
- Spare tooling available
- Ownership confirmed
People
- Critical roles identified
- Training requirements defined
- Operators trained and inspectors qualified
- Calibration technicians qualified
- Shift coverage adequate
Processes
- Process flow released
- Work instructions controlled
- Parameters and acceptance criteria defined
- Failure reactions defined
- Records retained
Measurement
- Measurement methods and resolution suitable
- Calibration current
- MSA evidence available
- Gage R&R reviewed where applicable
- Environmental influences controlled
Special processes
- Critical processes identified
- Operators and equipment qualified
- Parameters controlled
- Validation evidence available
- Subcontractors controlled
Quality system
- Document control effective
- Nonconformance controlled
- Corrective action demonstrated
- Internal audits performed
- Management review and supplier controls active
Material and suppliers
- Approved sources defined
- Incoming controls defined
- Material identity traceable
- Storage conditions controlled
- Supplier changes controlled
Calibration and testing
- Robot calibration method controlled
- Calibration fixtures suitable
- Test coverage and limits approved
- Test software controlled
- Results linked to serial number
Traceability
- Finished unit and critical components traceable
- Software, calibration and test results traceable
- Rework traceable
Maintenance
- Preventive maintenance active
- Breakdown history reviewed
- Critical spares available
- Restart verification defined
Capacity
- Cycle times available
- Yield, rework, testing and calibration included
- Bottleneck identified
- Shared resources and supplier capacity included
Decision
- Scope documented
- Gaps classified
- Corrective actions assigned
- Qualification status and conditions documented
- Reassessment date defined
Confirmed through primary documentation
Supplier-reported
Observed or independently tested
Not confirmed
Not disclosed
What Evidence Should Be Requested Before a Factory Assessment?
Company and site
- Business licence and factory address
- Organization chart and site layout
- Related companies
- Site ownership or lease evidence
Manufacturing
- Process flow, equipment list, tooling list
- Work-instruction examples
- Maintenance and production records
- Capacity data
Engineering
- DFM example
- Process-development example
- Tooling-design example
- Failure-analysis and engineering-change examples
Quality
- Quality certificates and certificate scope
- Internal audit example
- Nonconformance and corrective-action examples
- Supplier-control example
Measurement
- Measurement-equipment register
- Calibration records
- MSA example and gage R&R study
- Process-capability study
Calibration and testing
- Calibration procedure and test specification
- Test-equipment list and test-software control
- Sample test and traceability records
Capacity
- Shift pattern and cycle-time data
- Yield, rework and utilization
- Bottleneck analysis and expansion plan
Subcontracting
- Critical subcontractor list
- Processes outsourced
- Subcontractor approval
- Incoming verification and change-notification process
Frequently Asked Questions
What is a factory capability assessment?
It is an evidence-based evaluation of whether a specific production site can perform the processes required to manufacture a defined product or component. See the definition section.
What is the difference between a factory audit and a capability assessment?
A factory audit is an evidence-gathering activity. A capability assessment uses that evidence to decide whether the site can perform a defined manufacturing scope. See assessment vs audit.
What is the difference between supplier qualification and factory assessment?
Supplier qualification evaluates the organization as a whole. Factory assessment evaluates the processes, resources and evidence at a specific production site. See supplier qualification.
Is a factory audit the same as product inspection?
No. A factory audit examines systems and processes. Product inspection examines specified units or a production lot at a particular point in time. See the comparison table.
Does ISO 9001 prove that a factory can manufacture my robot?
No. It provides evidence relating to a defined quality management system. Product-specific engineering, equipment, processes, measurement, calibration, testing and capacity require separate evaluation. See ISO 9001 and QMS.
What is manufacturing capability?
Manufacturing capability is the demonstrated ability of a defined production system to perform the required processes and meet the relevant product requirements. See what the assessment must prove.
What is the difference between capability and capacity?
Capability concerns whether the process can meet requirements. Capacity concerns whether it can do so at the required output and timing. See production capacity.
What is process capability?
Process capability compares the variation of a stable process with defined specification limits. See process capability.
What are Cp and Cpk?
Cp compares process variation with specification width. Cpk also reflects whether the process mean is centred within the specification limits. See Cp and Cpk.
Is there a universal acceptable Cpk value?
No universal value should be applied without considering the characteristic, risk, data assumptions, customer requirements and applicable industry rules. See Cp and Cpk.
What is measurement system analysis?
Measurement system analysis evaluates whether the complete measurement process can produce sufficiently reliable data for its intended use. See MSA.
What is gage R&R?
Gage repeatability and reproducibility is an MSA study used to estimate variation associated with the measuring equipment and appraisers or measurement conditions. See gage R&R.
Does calibrated equipment mean the measurement system is suitable?
Not necessarily. Calibration addresses the relationship to a reference. Suitability also depends on the method, fixture, operator, environment, resolution and intended decision. See calibration and metrology.
What is a special manufacturing process?
It is a process requiring additional control because failures may have serious consequences or may not be fully detectable through later inspection. See special and critical processes.
How should factory production capacity be verified?
Review real cycle times, uptime, yield, rework, testing, calibration, maintenance, staffing, material supply and the constrained operation rather than relying only on nominal machine speed. See capacity and bottlenecks.
What should be traceable in robot manufacturing?
Each robot should be linked where required to its product revision, critical components, supplier lots, hardware, software, calibration, tests, rework and release records. See manufacturing traceability.
How long is a factory capability assessment valid?
There is no universal validity period. Reassessment may be required after site, ownership, process, equipment, product, volume or critical-supplier changes, or after significant quality failures. See capability decision.
How do I assess a robotics factory in China?
Confirm the legal and production entities, actual site, equipment ownership, internal and outsourced processes, engineering responsibility, calibration, test systems, traceability and realistic production capacity. See assessing factories in China and the supplier qualification service.
Need Help Assessing a Robotics Factory?
If you have defined the product or process scope and need structured factory capability assessment, process evidence review, measurement-system evaluation or China manufacturing-site verification, Yana can help build an evidence-led assessment package.