Quality
Glass Panel Quality Assurance
At PINGE, every tempered glass panel is manufactured under strict quality control standards. Backed by a 1-year warranty and excellent flame-retardant performance, our glass panels are designed for long-term safety, durability, and reliability.
Supported by our ISO9001-certified quality management system, every panel undergoes rigorous inspection and testing, including color consistency and impact resistance verification, helping ensure dependable performance from prototype to mass production.
±0.05mm Tolerance
Our Four-Stage Tempered Glass Panel Inspection Process
01
Incoming Quality Control
Strict Raw Material Validation
Quality begins with the substrate. We conduct rigorous inspections on every batch of raw glass sheets sourced from leading suppliers such as CSG and Xuhong.
Our technicians verify thickness tolerance, flatness, and surface purity to ensure each glass sheet is free from internal defects, contaminants, and structural imperfections before entering production.
02
In-Process Quality Control
Precision Monitoring at Every Step
We maintain a closed-loop quality control system across the entire production process. From dimensional checks during CNC engraving, strength testing after tempering, to color consistency control in silk-screen printing, each stage follows first-article inspection, in-process audits, and operator self-checks.
Every process ensures output quality and safeguards the next step, preventing defects from moving downstream.
03
Final Quality Control
100% Light-Box Inspection
Before packaging, every glass panel undergoes a 100% visual inspection under dedicated light-box systems.
Our quality inspectors carefully examine each piece for pinholes, scratches, ink spots, edge chipping, and other cosmetic defects, ensuring that every panel delivered to you meets our quality standards.
04
Outgoing Quality Control
AQL-Standard Pre-Shipment Audit
To guarantee site-ready reliability, our OQC team performs final random sampling based on strict AQL standards.
We conduct final verifications for color consistency and adhesion strength, alongside packaging stress simulations, helping ensure your products remain protected throughout transportation.
In-House Glass Panel Testing Laboratory
We Uphold International Standards To Ensure Your Glass Panel Quality.
High-Low Temp & Aging Thermal Cycle Chamber
Cyclic testing from -40°C to +100°C to ensure panels never delaminate or crack, regardless of extreme arctic or tropical climates.
Impact Resistance Drop Ball Tester
Strictly adhering to IK-rated standards via steel ball drop tests to maximize structural safety for security and smart home hardware.
Ink Adhesion Cross-Hatch Cutter/3M Tape
Guaranteed Grade 0-1 adhesion via professional cross-hatch tape tests, ensuring appliance interfaces never peel or fade even with frequent cleaning.
Adhesive Pull-Force Digital Push-Pull Gauge
Precise measurement of bonding strength between glass and frame to eliminate any risk of panel detachment in high-heat or high-humidity zones.
Color Consistency Precision Spectrophotometer
Batch-to-batch color deviation is kept at ΔE < 0.8, ensuring a perfectly uniform look for multiple switches installed on the same wall.
Optical Transmittance Light Transmittance Meter
Exact calibration of light transmission for AR and clear glass to provide the most vivid and accurate display performance for smart devices.
Boiling Water Reliability Constant Temp Water Bath
Survival through 100°C boiling water immersion to verify extreme ink-to-glass bonding, specifically designed for humid kitchen and bathroom environments.