Quality Control System
Every component that leaves our Shenzhen factory undergoes a rigorous, multi-stage quality assurance process -- from incoming raw materials to final export packaging. Our structured QC framework ensures consistent performance, compliance, and reliability for every order.
Quality System Overview
Built on Process, Not Luck
EDOM Electronics operates a fully documented quality management system aligned with ISO 9001:2018 standards. Our QC philosophy is prevention-first: we identify and eliminate defect risks at each production stage rather than relying solely on end-of-line inspection.
From drawing confirmation before sampling, to sample validation before mass production, to 100% final inspection before export -- every step is controlled, traceable, and documented. This gives our clients in Europe and the US the confidence to source alternative components without compromising on reliability.
Drawing Confirmation Before Sampling
All technical drawings are reviewed and approved by our engineering team before any prototype is produced.
Sample Validation Before Mass Production
Client-approved golden samples are retained and used as physical benchmarks throughout production runs.
Full Traceability & Documentation
Each batch is assigned a production lot number. QC records, test reports, and material certs are archived and available on request.
End-to-End Process
Inspection Process Flow
A structured, gate-based quality flow ensures that no batch advances to the next stage without meeting defined acceptance criteria.
Drawing Review
Engineering team validates all client drawings and specifications before any production begins.
IQC -- Incoming
Raw materials and components inspected against approved specifications before entering production.
IPQC -- In-Process
Real-time checks at each assembly station covering crimping, assembly, continuity, and appearance.
OQC -- Outgoing
Final batch inspection before packaging: 100% electrical test, pull force, and visual check.
Packing & Labeling
Export-grade K=K cartons with batch labels, lot traceability codes, and client-specific markings.
Delivery & Warranty
Shipped with full documentation. 2-year warranty backed by archived QC records for every batch.
Three-Stage Inspection
IQC · IPQC · OQC
Each inspection stage has defined checkpoints, acceptance criteria, and responsible personnel -- ensuring no defect passes undetected.
IQC
Incoming Quality Control
All raw materials -- conductors, terminals, housings, insulation materials -- are inspected against approved material specifications and supplier certifications before being released to the production floor.
- Conductor gauge & material verification
- Terminal plating & dimensional check
- Housing fit and color verification
- Supplier CoC & RoHS documentation review
- AQL sampling per lot size
IPQC
In-Process Quality Control
QC inspectors patrol the production line at defined intervals, checking critical parameters at each workstation -- cutting, stripping, crimping, assembly, and overmolding -- against golden sample benchmarks.
- Cut length tolerance (±0.5mm)
- Strip length & insulation damage check
- Crimp height & pull force testing
- Connector insertion & locking check
- Continuity test at assembly stage
OQC
Outgoing Quality Control
Before any batch is packed for export, it undergoes a comprehensive final inspection. Every finished product is electrically tested, visually inspected, and measured against the client's approved sample.
- 100% continuity & short circuit test
- Terminal pull force verification
- Full visual & dimensional inspection
- Golden sample comparison
- QC report generation & sign-off
Lab Equipment
Testing Equipment & Capabilities
Our QC laboratory is equipped with precision instruments to validate electrical, mechanical, and environmental performance of every product line.
Continuity & Hipot Tester
ELECTRICAL100% electrical continuity and dielectric withstanding voltage testing on all finished cable assemblies and harnesses.
Crimp Pull Force Tester
MECHANICALValidates terminal crimp integrity by measuring tensile pull force against UL and IPC standards for each wire gauge and terminal combination.
Dimensional Measurement
DIMENSIONALDigital calipers and optical comparators verify connector pitch, wire strip length, housing dimensions, and overmold geometry to ±0.01mm accuracy.
Impedance & Signal Analyzer
RF / SIGNALValidates impedance control, insertion loss, and return loss for high-frequency coaxial and differential signal cable assemblies.
Environmental Stress Chamber
ENVIRONMENTALTemperature cycling and humidity exposure testing for automotive, industrial, and outdoor-rated cable assemblies and connectors.
IP Ingress Protection Tester
WATERPROOFWater and dust ingress testing per IEC 60529 standard for overmolded connectors and cable assemblies rated IP67/IP68.
Standards & Compliance
Quality Standards We Work To
Our products are designed and tested against internationally recognized standards to ensure compatibility and compliance with markets in North America, Europe, and beyond.
UL Compliance
UL1007, UL1015, UL1061 wire standards. UL-recognized components available for North American market requirements.
RoHS Compliant
All products available in RoHS 2.0 compliant versions. Material declarations and substance data available for EU market entry.
IPC-A-620
Wire harness assembly quality criteria aligned with IPC/WHMA-A-620 acceptability standard for cable and wire harness assemblies.
REACH Ready
SVHC substance screening and REACH compliance documentation available. Full material transparency for EU chemical regulation compliance.
| Standard | Scope | Application | Status |
|---|---|---|---|
| ISO 9001:2018 | Quality Management System | All production operations | Certified |
| ISO 14001:2019 | Environmental Management | Factory operations & waste | Certified |
| UL 1007 / 1015 | Wire & Cable Safety | Hookup wire, appliance wire | Compliant |
| RoHS 2.0 | Hazardous Substance Restriction | All EU market products | Compliant |
| IPC/WHMA-A-620 | Wire Harness Acceptability | All harness assemblies | Aligned |
| REACH SVHC | Chemical Substance Screening | EU market compliance | Available |
The People Behind The Process
Our Quality Control Team
Our QC department is staffed by experienced engineers and inspectors who are dedicated full-time to quality assurance -- not shared with production responsibilities.
QC Manager
Head of Quality
12+ years in connector and cable assembly QC. Oversees the full QC system, audit programs, and supplier qualification.
IQC Inspector
Incoming Materials
Specializes in raw material verification, supplier audit, and incoming lot sampling. Manages material certification archives.
IPQC Engineer
In-Process Control
Monitors production line quality in real time. Responsible for crimp validation, first-article inspection, and defect root cause analysis.
OQC & Test Engineer
Final Inspection
Manages final batch testing, outgoing QC documentation, and test equipment calibration. Issues QC reports for each shipment.
Verified Credentials
Certifications & Compliance
Our certifications are maintained annually and are available for review by clients, procurement teams, and regulatory bodies.
9001
ISO 9001:2018
Quality Management System
Certified quality management system covering design, production, testing, and delivery of electronic components and cable assemblies.
14001
ISO 14001:2019
Environmental Management
Environmental management certification demonstrating our commitment to responsible manufacturing and waste reduction in Shenzhen operations.
CSA
UL / CSA Compliance
North American Safety Standards
UL-recognized wire and component options available for products destined for the US and Canadian markets, meeting NEC and CEC requirements.
2.0
RoHS 2.0 Compliant
EU Hazardous Substance Directive
All standard product lines are available in RoHS 2.0 compliant versions with full material declarations and substance test reports.
SVHC
REACH Ready
EU Chemical Regulation
SVHC substance screening completed for all product lines. Full REACH compliance documentation available for EU market entry and customs clearance.
WTY
2-Year Product Warranty
Post-Delivery Quality Guarantee
All products carry a 2-year warranty after delivery. Batch traceability records ensure rapid investigation and resolution of any field quality issues.
Need Certification Documents?
ISO certificates, RoHS declarations, material test reports, and compliance documentation are available upon request for qualified buyers and procurement teams.
Confident in Our Quality.
Are You Ready to Verify It?
Request a sample batch, ask for our QC reports, or send us your BOM for a cross-reference analysis. Our engineering team will respond within 24 hours.