Ningbo Sykra Technology Co., Ltd. Workshop Background
Home / Company Profile / Manufacturing & Testing Facility

Factory Workshop & Quality Testing Lab

A transparent look inside Ningbo Sykra Technology Co., Ltd. — high-precision machinery, certified production workflows, and stringent electrical safety testing.

Manufacturing Excellence

Engineered for Strict European & Global Standards

At Ningbo Sykra Technology Co., Ltd., we combine automated machinery with qualified assembly personnel across 5,200 m² of modern industrial workshop space. By executing every critical phase in-house, we ensure full traceability, consistent tolerance, and reliable lead times for B2B importers.

End-to-End Workflow

Standard Manufacturing Process

From inspected raw materials to sealed export packaging, every step is rigorously monitored.

Stage 01 Raw material inspection at Ningbo Sykra Technology

Raw Material

High-grade phosphor bronze strips, 100% pure copper conductors, and high-temp flame-retardant PC/ABS pellets inspected prior to batch release.

Stage 02 Injection molding of socket enclosures

Injection Molding

Automated molding units shape high-tolerance outer enclosures, socket faceplates, and protective shutter mechanisms with zero surface defects.

Stage 03 Ultrasonic and spot welding of electrical contacts

Welding

Heavy-duty internal contact connections and earthing bridges are welded securely to deliver ultra-low resistance and prevent thermal hotspots.

Stage 04 High precision laser marking machine

Laser Marking

Permanent engraving of CE, GS, RoHS technical ratings, batch codes, QR codes, and client OEM logos with sharp contrast and wear resistance.

Stage 05 Socket assembly line operations

Assembling

Standardized cell assembly with integrated ESD control, incorporating surge suppression MOVs, switches, and USB-C PD circuit boards.

Stage 06 In-line comprehensive testing and inspection

Inspecting

100% on-line testing of continuity, polarities, earthing bond integrity, switch tactile response, and USB protocol handshakes.

Stage 07 Custom packing for OEM sockets

Packing

Private label color boxes, blister retail packaging, shrink wrap, and reinforced corrugated export cartons configured for ocean pallets.

Stage 08 Finished socket products ready for distribution

Finished Products

Final QA lot sampling (AQL 0.65/1.5) and staging in our dry warehouse for pre-shipment container loading to global destination ports.

Advanced Equipment

Machinery & Production Lines

Modern tooling and high-precision automation empower high production throughput without compromising electrical integrity.

Semi-automated welding machine for socket manufacturing

Welding Machine

Semi-automated welding stations ensure uniform solder joints and robust copper-to-terminal joints for up to 16A/250V loads.

Industrial laser marking machine station

Laser Machine

Fiber laser system delivering crisp branding, safety warnings, and serial tracking data on flame-retardant plastic housings.

High-tonnage injection molding machine

Injection Molding Machine

High-tonnage hydraulic molding presses operating multiple custom molds for European cube, tower, and pop-up shell geometries.

Multi-station power strip assembly line

Assembly Line

Multi-station ergonomic conveyor lines allowing streamlined module routing, inline sub-assembly, and continuous throughput control.

Reliability & E-E-A-T Safety Testing

In-House Electrical & Environmental Lab

Every product series undergoes comprehensive lifecycle and stress simulation before commercial shipment to ensure global regulatory compliance.

Lab Instrument Precision contact and insulation resistance tester

Resistance Tester

Assesses contact resistance and insulation levels between conductors, guaranteeing zero short circuit hazards and minimal voltage drop under load.

Lab Instrument High voltage dielectric withstand tester

High Voltage Tester

Performs dielectric breakdown and hi-pot endurance testing up to 3750V AC, meeting international standards for European Schuko and French sockets.

Lab Instrument Electrical load and thermal rise tester

Load Tester

Simulates maximum rated continuous load (16A/3680W-4000W) to evaluate temperature rise on internal copper strips, switches, and lead cables.

Lab Instrument Integrated safety regulation testing device

Safety Regulation Tester

All-in-one safety compliance bench analyzing leakage currents, grounding impedance, and electrical clearances against EN 60884 standards.

Lab Instrument Programmable constant temperature and humidity test chamber

Constant Temperature & Humidity Test Chamber

Exposes units to extreme temperature (-40°C to +85°C) and relative humidity (up to 95% RH) to simulate marine transit and harsh working climates.

Lab Instrument Glow wire hot wire testing machine for fire resistance

Hot Wire (Glow-Wire) Testing Machine

Validates 750°C / 850°C glow-wire flammability index (IEC 60695-2-11), ensuring socket enclosures extinguish promptly without molten flame drips.

Certified Safety Engineering

All toolings and components conform to European low voltage directives, RoHS material bans, and CE/GS technical parameters.

OEM / ODM Agility

Full design customization from industrial appearance and internal layouts to customized cable lengths, private packaging, and fast prototyping.

Strict QC & Batch Traceability

Incoming inspection, automated optical and electrical testing, and finished lot retention systems ensure 100% dependable quality.

Ready to Partner with a Verified Socket Factory?

Whether you require standard 16A Schuko cubes, tower surge units, or custom ODM project developments, our technical engineers are ready to support your supply chain.

Send an Inquiry