200% Capacity Leap in Sheet Metal Industry
Client Location: Bangkok, Thailand
Industry: Smart Home Electronics & IoT Devices
Core Challenge: High product failure rates and a painful 40% return rate from overseas buyers due to tropical humidity damage.
Solution Deployed: JCT Constant Temperature and Humidity Test Chamber
Key Result: Smashed the return rate down to near zero and saved their brand reputation in global markets.
The Challenge: Watching Products Fail Across the Ocean
Our client builds smart home gateways and security sensors in Bangkok. Their local sales went fine, but when they started exporting to humid tropical regions and rainy European countries, trouble hit hard.
Up to 40% of their shipped devices came back as returns within the first three months. When their support team opened up the broken units, the problem was obvious: moisture had crept inside, corroded the circuit boards, and caused short circuits.
Their old testing method was basically putting prototypes outside in the backyard and hoping for the best. That “test method” was useless. They had no idea how their smart devices would survive real-world humidity until angry customers started complaining online.
The Practical Fix: Bringing Tropical Weather Into the Lab
The lead quality engineer contacted us because they needed to stop guessing and start testing properly. They wanted to simulate harsh weather right inside their own factory before putting products in a shipping container.
We set them up with a JCT constant temperature and humidity test chamber.
We configured the machine with a stable humidity generator, precise digital controls, and clean stainless steel interiors. We also showed their lab techs how to program accelerated aging cycles—cracking the humidity up to 85% RH and cycling temperatures up and down to push the electronics to their absolute limits.
What Changed on the Factory Floor
Putting the new test chamber to work completely transformed how they built their circuit boards:
Finding the Weak Spot Fast: Within two days of testing, they found that their old PCB conformal coating was cracking under high moisture.
Fixing the Formula: They upgraded to a better waterproof coating and tested the new batch inside the JCT chamber overnight.
Crushing the Returns: The new smart home units passed 500 hours of brutal humidity tests without a single failure. Their overseas return rate plummeted from 40% down to almost nothing.