Quality Control
At Guangdong Shengtang, quality control is integrated throughout the optical cable manufacturing process. Operating under an ISO 9001:2015 Quality Management System, we implement inspection procedures from incoming materials to finished products to maintain consistent optical performance, mechanical reliability, and product quality.
Through standardized production control and testing processes, Shengtang supports stable optical cable supply for telecommunications, power, transportation, and industrial communication applications.
Raw Material Quality Inspection
Reliable optical cable performance begins with qualified raw materials. Before production, incoming materials are inspected according to product requirements and manufacturing standards.
Key Inspection Items:
Optical Fiber Inspection
Verification of optical fiber specifications and basic optical performance before production.
Jacket Material Inspection
Inspection of cable jacket materials, including PE and LSZH compounds, to ensure suitability for different application environments.
Strength Member Inspection
Checking reinforcement materials such as steel wire, FRP rods, and aramid yarn according to product requirements.
In-Process Quality Control
During optical cable production, Shengtang performs process inspections and parameter monitoring to maintain product consistency throughout manufacturing.
Key Control Points:
Cable Structure Inspection
Monitoring important production parameters during fiber placement, loose tube production, stranding, and cable forming processes.
Production Parameter Control
Checking cable dimensions, tension control, and manufacturing conditions to maintain structural stability.
Printing & Appearance Inspection
Verifying cable markings, surface quality, and product identification requirements.
Optical & Mechanical Performance Testing
Finished optical cables undergo performance verification before shipment to ensure compliance with product specifications and customer requirements.
Optical Performance Testing
- OTDR testing at 1310nm and 1550nm wavelengths.
- Optical attenuation and transmission performance verification.
- Fiber continuity and length confirmation.
Mechanical Performance Testing
- Tensile performance inspection.
- Crush resistance evaluation.
- Structural performance verification according to applicable product standards.
Testing Equipment & Laboratory Capability
Shengtang uses professional testing equipment to evaluate optical performance, cable structure, and mechanical characteristics during production and final inspection.
Testing Equipment Includes:
OTDR testing equipment for optical performance verification
Optical measurement instruments
Cable dimension inspection tools
Mechanical performance testing equipment
Through inspection equipment and standardized testing procedures, Shengtang supports stable product quality across different optical cable product lines.
Final Inspection & Product Traceability
Before shipment, Shengtang performs final inspections to confirm product appearance, packaging condition, labeling requirements, and shipment documentation.
Final Inspection Includes:
Physical Inspection
Checking cable surface condition, reel packaging, product labels, and identification markings.
Quality Documentation
Maintaining inspection records and production information for order tracking and customer requirements.
Product Traceability
Production batches, inspection records, and shipment information are managed through internal documentation systems to support quality tracking.
Export Packaging & Shipment Protection
Shengtang provides suitable packaging solutions, including wooden drums, iron-wooden reels, and protective packaging methods based on product specifications and shipping requirements.
Packaging Support Includes:
Reel protection during handling and transportation
01
Product identification labels
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Export shipment preparation
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Container loading coordination
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Customer-Specific Inspection Support
For customized projects and bulk orders, Shengtang works with customers on technical requirements, inspection documentation, and quality confirmation procedures.
Our team provides support during:
Product specification confirmation
Customized cable requirements
Quality document preparation
Pre-shipment communication
By combining manufacturing experience, quality management, and technical support, Shengtang helps customers achieve stable optical cable supply for different communication applications.