01 
Raw Material
Strict incoming QC on flame-retardant PC/ABS pellets, high-conductivity phosphor bronze contacts, and pure copper cabling.
Manufacturing Stages
Our Standardized 8-Stage Production Flow
At Ningbo Sykra Technology Co., Ltd., every single power socket and extension lead passes through rigorous standardized production milestones to ensure complete electrical integrity and mechanical precision.
02 
Injection Molding
High-tonnage injection machines producing structural socket shells with strict dimensional stability and fire-retardant properties.
03 
Welding
Automated spot and ultrasonic welding ensuring minimal contact resistance, zero cold joints, and continuous load reliability.
04 
Laser Marking
Permanent, high-definition laser engraving for private-label brand logos, technical electrical ratings, and regulatory symbols.
05
Assembling
Standardized ESD assembly benches with step-by-step SOP verification, incorporating child safety shutters and PCB charging modules.
06 
Inspecting
100% automated inline functional testing for continuity, polarity, earth grounding, switch action, and USB fast-charge protocols.
07 
Packing
Carefully managed protective packaging: private retail color gift boxes, blister cards, barcode labeling, and reinforced corrugated export cartons.
08 
Finished Products
Batched palletization and final QA pre-shipment auditing according to AQL II standards before dispatch to global ports.
Workshops & Equipment
Advanced Production Equipment
Modernized automation delivers tight tolerance controls, minimized manufacturing deviations, and rapid output volume.
Injection Molding Machine
Automated multi-cavity precision presses delivering structural integrity, uniform wall thickness, and defect-free finishes.
Welding Machine
Engineered for high-amperage internal busbars and reliable metallurgical bonding with minimal thermal deformation.
Laser Machine
High-resolution marking ensuring permanent traceability, regulatory CE/GS marks, batch serials, and custom customer logos.
Assembly Line
Streamlined production cells balancing efficiency with operator verification to support low to high-volume custom production runs.
Quality Assurance & Compliance
In-House Reliability & Safety Testing Laboratory
Ningbo Sykra Technology Co., Ltd. operates a comprehensive internal laboratory capable of carrying out critical electrical safety, thermal stress, and environmental verification tests required for GS, CE, and global certifications.
Resistance Tester
Verifies milliohm-level contact resistance and conductor path integrity to eliminate overheating risks under full 16A loads.
High Voltage Tester
Applies dielectric voltage withstand testing up to 3750V AC to guarantee reliable electrical insulation and complete operator safety.
Load Tester
Validates prolonged high-wattage power endurance (up to 4000W), temperature rise under continuous use, and switch cycle life.
Safety Regulation Tester
Integrated verification test bench evaluating leakage current, ground continuity, and insulation resistance against European standards.
Constant Temperature and Humidity Test Chamber
Simulates extreme climate conditions (-40°C to +100°C, 20%–98% RH) to prove material aging resistance and USB circuit durability.
Hot Wire Testing Machine
Executes 750°C / 850°C glow-wire flammability index (GWFI) tests, ensuring self-extinguishing safety compliance for all plastic housings.
Enterprise Verification
Full Compliance for Global Market Access
Our quality management system is audited for on-site execution. As a verified manufacturer audited by TÜV Rheinland, Ningbo Sykra Technology Co., Ltd. provides international distributors and retailers with reliable technical documentation and proven test records.
Audited Quality Control Third-party verified processes and facilities
Complete Reports GS, CE (LVD/EMC), and RoHS support
Rapid Engineering Fast tooling design and functional prototyping
Reliable Fulfillment Close proximity to Ningbo international deepwater port