Quality & Inspection

Quality You Can Verify — Not Just Promise

Every PEEK part we ship comes with measurable quality records. First-article reports, dimensional inspection, material traceability and locked process parameters — backed by calibrated equipment and documented procedures, not vague reassurances.

See Inspection Workflow
100%
FAI on New Parts
±0.005 mm
Measurement Resolution
5+ yrs
Records Retention
Batch-Level
Material Traceability
Why Quality Matters Here

PEEK Parts Run in Equipment That Cannot Fail

The PEEK components we make end up in valves handling hot chemicals, in semiconductor fixtures inside cleanrooms, and in electrical assemblies running for years without intervention. When one of our parts fails in service, our customer's whole assembly fails with it — that's why quality is built into our process, not bolted on at shipping.

Our quality system is structured around three things: measurable inspection, traceable materials, and a locked, repeatable process. Every shipment carries records that let you verify what you received against what you ordered.

Three Quality Pillars

How We Define Quality at HSealing

Each pillar has documented procedures and assigned ownership — not slogans on a wall.

Dimensional Inspection

Critical dimensions verified on calibrated equipment, recorded against the drawing, signed off before shipment.

  • First-article inspection on every new part
  • In-process checks during production runs
  • Final inspection before packing & shipping
  • Records retained & available on request

Material Traceability

Every shipment ties back to the resin certificate and batch. If a material question comes up six months later, we can answer it.

  • Resin certificates from approved suppliers
  • Batch ID assigned at receiving
  • Traceable from raw material to finished part
  • Certificates included with shipment on request

Locked Process Control

Once samples are approved, machining and molding parameters are locked per part. Reorders reproduce the part you signed off on.

  • Process parameters documented per part number
  • Operator instructions controlled, not improvised
  • Change control on any process modification
  • Same engineer accountable across reorders
Inspection Equipment

Calibrated Tools, Documented Procedures

The instruments behind every measurement on every report we ship.

3D Measurement

Coordinate Measuring Machine (CMM)

For complex geometry, GD&T verification, and full first-article reports on critical parts.

Resolution: 0.001 mm · Range: 500 × 500 × 400 mm
Optical Measurement

Vision Measuring System

Non-contact measurement of small features, edges and 2D profiles — ideal for fragile or delicate parts.

Resolution: 0.001 mm · Magnification: 20× – 200×
Hand Measurement

Calipers, Micrometers & Bore Gauges

Calibrated digital and analog instruments for in-process and final dimensional checks at the workstation.

Resolution: 0.001 mm · Calibrated: Annually, traceable
Surface Quality

Surface Roughness Tester

Verifies Ra and Rz against drawing requirements — important for sealing surfaces and bearing applications.

Range: Ra 0.005 – 16 µm · ISO 4287
Material & Properties

Hardness & Density Testing

Shore D hardness and density verification when material grade or process consistency needs to be confirmed.

Hardness: Shore D · Density: Per ISO 1183
Visual / Cosmetic

Magnification & Visual Inspection

For surface defects, contamination, color consistency and cosmetic acceptance criteria on visible parts.

Magnification: Up to 50× · Documented criteria
Inspection Capabilities

What We Measure, Routinely

Standard inspection ranges. Specialized requirements (profile, position, runout, custom GD&T) handled on quote.

Inspection Type Standard Capability Notes
Linear dimension ±0.005 mm Measurement resolution; tolerance per drawing
Bore / hole diameter H6 verification Pin gauges + CMM for critical bores
Surface roughness (Ra) 0.005 – 16 µm Profilometer per ISO 4287
Concentricity / runout 0.005 mm CMM or dial indicator on V-block
GD&T (position, profile) Per drawing CMM for full GD&T verification
Hardness (Shore D) Per material grade On-request material verification
Visual / cosmetic Documented AQL Per agreed acceptance criteria
Inspection Workflow

Five Checkpoints Between Drawing and Shipment

Incoming Material

Resin grade, batch and certificate verified at receiving.

First-Article (FAI)

Full dimensional report on the first part — your sign-off gate.

In-Process Checks

Operators run dimensional checks at defined intervals during the run.

Final Inspection

Pre-shipment audit against drawing and acceptance criteria.

Records & Shipment

Reports compiled, certificates attached, parts packed and shipped.

Documents You Receive

Quality Records, Standard With Every Order

Two document packages — one for new parts, one for ongoing production. Both included at no extra cost.

New Part Package (First Order)

Sent with samples for your approval. Establishes the baseline you'll measure future shipments against.

  • First-article inspection (FAI) report
  • Material certificate from resin supplier
  • Photos of critical features
  • Process notes and parameter summary
  • Packing list with batch ID

Production Package (Reorders)

Ships with every production run. Confirms the part you receive matches the part you approved.

  • Batch inspection summary
  • Material certificate for the production lot
  • Reference to the approved FAI baseline
  • Packing list with batch ID and quantity
  • Full CMM report on request
Our Commitments

What You Can Expect From Us, Every Time

Four commitments that shape how we run quality — and how we respond when something goes wrong.

Quote Matches Shipment

The part you receive is the part we quoted — same material grade, same tolerance, same process. No quiet substitutions to save margin.

Records You Can Verify

Reports are real measurements taken on calibrated equipment — not template numbers filled in to look good. We back what we sign off on.

Defects Get Investigated

If a quality issue surfaces, we trace it back through batch records, replace defective parts, and document corrective action — not deflect or stall.

Audits Are Welcome

We host customer site visits and run video audits for international customers. Quality is harder to fake when someone's actually watching — we're fine with that.

Quality FAQ

Common Questions About Our Inspection Process

Do you provide an FAI report on every new part?

Yes — first-article inspection comes standard on every new part, included with samples. You sign off before any production volume runs.

Can I request a full CMM report on production batches?

Yes. Full CMM reports on production lots are available on request. For high-criticality parts we recommend setting this up at the quote stage.

How is your equipment calibrated?

All measurement equipment is calibrated annually with traceability to national standards. Calibration certificates are available on request.

How long do you keep inspection records?

Minimum 5 years. We can retrieve historical records by part number, batch ID or shipment date if you need to investigate something later.

Do you support customer-supplied AQL or sampling plans?

Yes — we work to ANSI/ASQ Z1.4 by default, and accept customer sampling plans on request. Discuss it at the quote stage so it's priced in.

What happens if a shipment fails your final inspection?

It doesn't ship. We investigate the root cause, rework or remake the affected parts, and document the corrective action before releasing the order.

Quality Built In, Verified Out

Ready for a Supplier Whose Reports You Can Actually Trust?

Send drawings — every quote includes inspection plan, material traceability and FAI commitment.

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