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QA & QC Process

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At Marcus Hi-Tech Engineering, quality is engineered into every stage of our precision manufacturing process, rather than inspected in at the end.

Our dedicated Quality Assurance and Quality Control systems ensure every die-cast, machined, and assembled component meets the highest international standards of precision, durability, and compliance.

Quality Assurance — Preventive Systems

Our QA approach ensures defects are prevented before production begins:

DFM: early-stage optimisation of part designs
APQP: customer-approved process planning framework
PPAP: product and process validation before start of mass production
Prototyping and trials: T0/T1 runs to validate tool performance and manufacturability
Process control plans: documented preventive systems for every manufacturing stage

Quality Control — Inspection & Testing

Our QC process verifies precision and consistency during production:

In-line inspection — continuous monitoring by operators and machines during runs
CMM — high-accuracy dimensional inspection
Optical emission spectrometer — material chemistry validation
Leak testing systems — ensuring pressure-tight castings
Air plug gauges and receiving gauges — real-time component verification
FAIR — certification of initial parts meeting all specifications
Sampling inspections — random checks during production to maintain ongoing compliance

Continuous Improvement Programmes

Kaizen and Lean initiatives — enhancing efficiency and reducing waste
CAPA — systematic resolution of root-cause issues
Training and skill development — regular team training on QA/QC tools
Customer feedback integration — closed-loop system for continuous improvement
Why it matters

Why This Matters for Your Programme

What this capability changes for the engineers and buyers running the programme.

Certified

IATF 16949:2016 and ISO 9001 certified systems.

Industry Compliant

APQP, PPAP, DFM, and FAIR processes as standard.

Advanced Inspection

CMM, OES, leak testing, and gauge verification.

Proven Globally

45+ years supplying OEM and Tier 1 programmes.

Questions

Frequently Asked Questions

Anything not covered here? Send the drawing — our engineering team responds to every RFQ within 48 hours.

What is the difference between QA and QC at Marcus?

QA is preventive — DFM, APQP, PPAP, trials, and control plans that stop defects being designed or planned in. QC is verification — inline inspection, CMM, spectrometry, leak testing, gauges, and FAIR that confirm what was produced matches specification.

Do you provide inspection reports with shipments?

Yes. Dimensional reports, material certificates, and FAIR/PPAP documentation are supplied per programme requirements.

How are non-conformances handled?

Through a documented CAPA process — containment, root-cause analysis, corrective action, and verification of effectiveness, with customer feedback closed back into the QMS.

Looking for a different process? See every Marcus capability or talk to the engineering team.