THE ANATOMY OF
REAL SECURITY
While the market is flooded with cheap zinc alloys and hidden plastic cores that fail under pressure, YueFong relies on raw data. Witness the definitive proof of manufacturing excellence through four critical dimensions.
Integrity
Vs Imitation
01. Material Mass
In the field of mechanical security, weight equals safety. YueFong uses high-density zinc alloy solid die-casting, which is 58% heavier than market imitations. This mass gap translates to superior impact resistance and extended metal fatigue life.
02. Internal Anatomy
Invisible details define survival. YueFong's internal components are fully precision-machined from aluminum alloy, offering excellent corrosion resistance; meanwhile, imitations cut corners by using plastic in core structural parts, leading to brittle failure under extreme temperature fluctuations.
Destructive Tensile Analysis
YueFong (In-house)
External Imitation
| Test Item | Standard (ASTM F883) | YueFong Padlock Result | External Factory Result |
|---|---|---|---|
| Tensile Test | ≥ 2500 N |
1#: 2708 N
2#: 2642 N
|
1#: 258 N
|
| Shackle Cutting Test | ≥ 13500 N |
1#: 17974 N
2#: 18538 N
|
1#: 17000 N
|
| Documentation Info | |||
240-Hour Extreme
Salt Spray Endurance
A padlock’s true enemy isn’t just brute force—it’s time, moisture, and invisible corrosion. In our in-house testing facility, we subject our locks to a punishing 240-hour 5% NaCl salt spray simulation (equivalent to years of harsh marine or industrial exposure). This is where superficial imitations crumble, and YueFong's uncompromising surface treatment and pure alloy matrix shine. This continuous tracking record is the definitive proof of our manufacturing supremacy.
Official Lab Report Parameters
| Product Tested | 50mm Combination Padlock | Test Period | 2026.03.30 ~ 2026.04.09 |
| Test Environment | Neutral Salt Spray (NSS) | Chamber Temperature | 35°C ± 2°C |
| Saline Concentration | 5% ± 1% NaCl | Total Duration | 240 Continuous Hours |