VISION
Make the difficult parts well, and make them the same way every time
In volume production, repeat batches must match the first article in appearance and dimensions. We maintain this through process control and recorded data.
Quality controlled by equipment
Coating quality is controlled by equipment: computer-controlled powder output and voltage, ovens that measure actual part temperature, and spectrophotometers that measure colour.
Stamping, coating and assembly on one site
Parts are not transported between suppliers, and responsibility for the finished part sits with one plant. Engineering feedback between processes can be handled within hours.
Records for customer audits
Production is scheduled and recorded in ERP, and every batch carries its lot number and inspection data. If a customer audit asks about a particular production date, the answer comes from these records.
PRODUCTION CONTROL
ERP, lot-level traceability
MEASUREMENT
In-house
DOCUMENTATION
thickness curve, ΔE, gloss, acid test
SYSTEM
IATF 16949 / ISO 9001 / ISO 14001
Where we are going
Our goal is to deliver parts on the agreed date, to the agreed specification, with the required documentation included.
01
IATF 16949:2016
Automotive Supplier
Quality Management System
Quality Management System
02
ISO 9001:2015
Quality
Management System
Management System
03
ISO 14001:2015
Environmental
Management System
Management System
04
CSR
Corporate Social
Responsibility Assessed
Responsibility Assessed
FREQUENTLY ASKED QUESTIONS
Common questions about how we control quality
Q1Why does Sonnarkraft rely on equipment rather than operator judgement for quality control?
Wherever a result depends on a person's eye or feel, it drifts between operators and shifts. We push those decisions into equipment instead: computer-controlled powder output and voltage, ovens that read actual part temperature, and spectrophotometers that measure colour rather than technicians describing it.
Q2How is production data tracked so it survives a customer audit?
Every batch is scheduled in our ERP and carries its own lot number and inspection data, together with a thickness curve, ΔE colour reading, gloss reading and acid-test result. When an audit asks what happened on a specific date, the answer is a record, not a recollection.
Q3Why keep stamping, coating and assembly on one site instead of subcontracting between factories?
Every handover between separate factories adds transport time, a queue, and a point where responsibility gets diffused. Keeping all three processes on one site removes those handovers, and engineering feedback between processes takes hours rather than weeks.
Q4What quality systems back this approach?
IATF 16949:2016, ISO 9001:2015 and ISO 14001:2015, plus an internal CSR assessment. Production control, measurement and documentation are run in-house rather than outsourced.
Q5What is Sonnarkraft working towards?
The goal is a supplier a customer stops worrying about: parts that arrive on the promised date, to the agreed specification, with the paperwork already attached. That comes from continuing to move quality decisions into equipment and data rather than relying on individual judgement.
REQUEST A QUOTE
Talk to us about your programme
The button opens your mail client with an enquiry template already filled in — it lists stamping, powder coating, assembly and tooling, so you can ask about several processes in one message. 2D / 3D files can be attached directly.
Send an enquiry by e-mailCall +886-3-212-6669Sonnarkraft Corp. 2F, No. 58, Lane 6, Rongan Rd., Luzhu Dist., Taoyuan 338028, Taiwan sales@sonnarkraft.com