Walk-in ESS Test Chambers

Sanwood walk-in ESS chambers for efficient batch environmental stress screening. Reduce testing time and improve product reliability with our high-capacity temperature/humidity cycling systems.

Sanwood walk-in ESS chambers for efficient batch environmental stress screening. Reduce testing time and improve product reliability with our high-capacity temperature/humidity cycling systems.

• •Available in standard and custom sizes (typically ranging from 5m³ to 50m³ and above), featuring a modular internal structure that allows flexible configuration of shelving, sliding rails, test cable interfaces, and observation windows to accommodate diverse load layouts.
• •Utilizing a multi-stage compressor parallel system and zoned airflow optimization technology, it achieves rapid temperature changes in large spaces (with selectable rates from 5°C/min to 20°C/min).
• •Supports independent or combined programming of temperature cycling, humidity cycling, thermal shock, and power cycling tests to simulate multi-stress coupling effects in real-world environments.
• •Supports multi-channel independent power supply control, remote data acquisition, and alarm management, enabling centralized control and traceability for large-scale parallel testing.

The walk-in ESS test chamber is a device to obtain fast temperature change rate. It offers great temperature changes in a short period of time, while keep high accuracy of temperature control. This device is widely used in multiple industries:

• •Pharmacy: To test and study stability and reliability of packing and medical devices based on high temperature change conditions.
• •Chemistry: To test and study function and function change rules of materials in different temperature or temperature changing conditions; to research and study function and reliability of new materials; obtain scientific proof for new material selection and high performance material selecting.
• •Aerospace: To test performance of meters, control systems, aerospace materials, spare parts etc., under extreme temperature conditions.
• •Auto Mobile: To test function and evaluate durability and reliability of engine, brake, tyres, gears, control units, control panel, etc., by simulating different seasonal and regional conditions.
• •Electronics: To test and evaluate functions and reliability of electric parts for mobile phones, laptops, and chipset, etc., under extreme fast temperature change conditions. Other applications: Test and quality evaluate for products of Communications, meters, plastic parts, metal parts, food, construction materials, etc.

The test standards of the rapid temperature change test chamber cover multiple aspects to ensure the accuracy and repeatability of the test. The following are some of the main test standards for the rapid temperature change test chamber:

• •MIL-STD-810: US military test standards, which is widely used in military and aerospace area. Multiple environmental test methods, including thermal cycle and ESS test are in it.
• •MIL-STD-202G Method 107G US military methods for testing electronic and electrical component parts.
• •IEC 60068-2-3 Revised：Basic environmental testing procedures for electronic components and electronic equipment.
• •ISO16750：Road vehicles — Environmental conditions and testing for electrical and electronic equipment.
• •IEC 62133: Safety Testing for Lithium Ion Batteries.
• •IEC 60068-2-14: Temperature Testing.
• •IEC 60068-2-1: Environmental testing.
• •IEC 60068-2-2: Dry Heat Temperature Testing. The testing standards for the rapid temperature change test chamber cover multiple aspects, including the main standards followed, technical parameters, and other requirements. These standards and requirements together form the benchmark for equipment performance evaluation, ensuring the accuracy and repeatability of testing.

The control system of the Sanwood test chamber adopts the world's leading software and hardware system to ensure that the test chamber operates under preset conditions, provide accurate and reliable experimental data, and help users achieve precise control and data collection of various experimental conditions.

• •Controller: It adopts the controller imported from South Korea Sanwon and the self-developed control system, which can be equipped with Siemens control system and equipped with RS232, RS485 and Ethernet communication ports.
• •Programmable control: It supports setting experimental programs, such as heating, cooling, constant temperature time, etc., and can execute multiple program settings, and supports advance reservation startup function.
• •Multiple languages optional: English, Korean, Russian, Chinese and Japanese.
• •Remote monitoring: Using network remote technology to achieve remote control, the test chamber can be monitored at any time, and the current data can be viewed through the user's PC and mobile phone, which improves the convenience of testing. The specific control system of the test chamber will vary depending on the model. Please read the "Sanwood Environmental Test Chamber Manual" carefully before use and comply with the safety operating procedures.

The refrigeration system of the test chamber is a complex and important system. The stability of the refrigeration system is crucial to the accuracy and reliability of the test results.

• •Sanwood Technology has developed a refrigerant hot gas defrosting technology, which effectively melts the frost on the evaporator by injecting high-temperature and high-pressure refrigerant steam into the heat exchanger in the test chamber. This not only ensures that the evaporator does not frost, but also greatly reduces the energy consumption of the equipment.
• •The refrigeration unit adopts an internationally renowned brand.
• •Optimize the layout of the refrigeration system, and adopt VRF (refrigerant flow control) technology based on the PID cold end output principle to achieve low-temperature energy-saving operation, which can reduce energy consumption by 30% under low-temperature conditions.
• •The refrigeration system adopts a modular design, with low failure rate, few welding points, high refrigeration efficiency, good reliability, simple maintenance, and low maintenance cost.