Controlled Environments
This guide separates the real material or manufacturing requirement from standard servo-feeder functions, then identifies the data and validation needed for a reliable line.
What the Evidence Supports
This page separates the real material or manufacturing topic from capabilities that have not been demonstrated for a HENLI servo feeder.
- ISO 14644-1 addresses airborne particle concentration in cleanrooms and clean zones.
- ISO 14644-14 assesses equipment suitability by airborne particle concentration; cleanability, equipment design and material selection are outside its scope.
- No Whirlpool project, ISO certification, 92% defect reduction or lubrication-free HENLI mechanism was evidenced.
Evidence Required for Special Claims
The application name alone does not prove a special machine capability. Treat each claim as project-specific and record the evidence used for quotation and acceptance.
- Machine specification: identify the exact model, component ratings, environmental limits and approved material envelope.
- Performance: state the test material, feed pitch, cycle rate, sample size, measurement method and acceptance tolerance.
- Certification or compatibility: identify the applicable standard, scope, configuration and supporting report instead of relying on a general label.
What the Servo Feeder Controls—and What It Does Not
| Engineering area | Feeder or line action | Boundary |
|---|---|---|
| Equipment surfaces | Materials, finishes and access can be specified for cleaning. | Stainless appearance alone does not establish cleanroom suitability. |
| Lubrication | Approved lubricants and containment can be defined. | A standard gearbox or bearing should not be called lubrication-free without evidence. |
| Particle generation | The complete machine can be tested in agreed operating states. | Catalogue accuracy cannot substitute for particle testing. |
| Maintenance | Cleaning intervals and service procedures can be documented. | Opening guards or servicing may change the clean state. |
Application Data to Verify Before Quotation
Use measured production data and material documentation. A feeder model should not be selected from the application name alone.
- State the target ISO class and the process-specific contamination limits.
- Define the equipment operating modes to be tested, including threading, jogging and production.
- Review exposed materials, coatings, cables, belts, bearings and lubricants.
- Design smooth cleanable surfaces, access, covers and particle traps.
- Agree on particle measurement locations and acceptance responsibility.
- Document packaging, installation, cleaning and maintenance procedures.
Recommended Engineering Workflow
1. Define cleanliness
Translate the process need into measurable air and surface criteria.
2. Review the machine
List every potential particle, lubricant and cleaning-chemical source.
3. Build the test plan
Specify operating states, sampling points and acceptance limits.
4. Control the lifecycle
Include installation, cleaning, maintenance and change control.
Frequently Asked Questions
Does ISO 14644 certify machinery or its cleanable design?
No. ISO 14644-1 classifies air cleanliness, while ISO 14644-14 assesses equipment suitability only by airborne particle concentration. Cleanability, equipment design and material selection remain outside that assessment.
Can a servo feeder be engineered for a cleanroom?
Yes, but airborne-particle suitability, materials, lubricants, cleanable design, maintenance and other contamination controls must be specified and validated as separate project requirements.
Is this page evidence of a Whirlpool project?
No. The revised page makes no Whirlpool project claim.
Technical References
These sources support the material, process or component boundary discussed above. They do not certify a HENLI machine unless an HENLI-specific test or certificate is explicitly identified.
- ISO 14644-1 air-cleanliness classification
- ISO 14644-14 airborne-particle equipment-suitability assessment
Related HENLI Resources
Commissioning GuideConvert requirements into measurable acceptance steps.
NC Servo Feeder ModelsStart from a standard configuration and define exceptions.
Define the Application Before Selecting a Feeder
Send the material standard and condition, width and thickness range, feed pitch, target strokes per minute, press and die details, surface requirements, line layout and the acceptance method. HENLI can review the standard feeder scope and identify any special engineering that still requires validation.
