In August 2026, the VintechME engineering team successfully carried out the installation of a large Walk-in Temperature and Humidity Test Chamber at a customer site in Bac Ninh, Vietnam.
The system is designed with a large testing space and precise temperature and humidity control, making it suitable for environmental testing of products, components, assemblies, and industrial equipment.
The installed equipment is a Walk-in Constant Temperature and Humidity Chamber, model RHPW-10BT, featuring a nominal chamber volume of 10 m³, a temperature range from -40°C to +85°C, and a humidity range from 30%RH to 95%RH.
What Is a Walk-in Temperature & Humidity Test Chamber?
A Walk-in Test Chamber, also known as a Walk-in Temperature and Humidity Chamber or large environmental test chamber, is designed to simulate different temperature and humidity conditions in order to evaluate the performance, durability, reliability, and environmental resistance of products.
Unlike conventional cabinet-type environmental chambers, a Walk-in Chamber provides a much larger testing space, allowing users to test large products, assemblies, or multiple samples simultaneously.
For the RHPW-10BT model installed by VintechME in Bac Ninh, the chamber provides an internal working space of:
W2000 × H2000 × D2500 mm
The overall external dimensions are approximately:
W2200 × H2450 × D3850 mm
with a total equipment weight of approximately 1,260 kg.
Main Technical Specifications of the RHPW-10BT Walk-in Test Chamber
The main technical specifications of the installed Walk-in Chamber are summarized below:
| Parameter |
Specification |
| Model |
RHPW-10BT |
| Equipment type |
Walk-in Constant Temperature & Humidity Chamber |
| Nominal volume |
10 m³ |
| Internal dimensions |
W2000 × H2000 × D2500 mm |
| External dimensions |
W2200 × H2450 × D3850 mm |
| Approximate weight |
1,260 kg |
| Temperature range |
-40°C to +85°C |
| Temperature fluctuation |
±0.5°C |
| Temperature deviation |
±2.0°C, no load |
| Humidity range |
30%RH to 95%RH |
| Relative humidity fluctuation |
Approx. 2.5%RH |
| Heating rate |
Approx. 3°C/min, no load |
| Cooling rate |
Approx. 1°C/min, no load |
| Control system |
PID + SSR |
| Display |
7-inch touchscreen |
| Communication |
USB, RS232 |
| Power supply |
AC 380V, 50Hz |
According to the technical documentation, the chamber can heat from -40°C to +85°C at approximately 3°C/min under no-load conditions, while cooling from +20°C to -40°C at approximately 1°C/min.
Automatic Temperature and Humidity Control
One of the key features of the system is its Balanced Temperature and Humidity Control System – BTHC, combined with PID and SSR control.
The chamber automatically manages multiple environmental control functions, including:
This configuration is designed to maintain stable temperature and humidity conditions during long-duration environmental tests.
The heating system uses a high-efficiency nickel-chromium alloy heater controlled by PID + SSR technology.
The humidification system uses saturated steam humidification, also controlled by PID + SSR. Temperature measurement is performed using a PT100 sensor, while humidity is monitored by an electronic humidity sensor.
Robust Walk-in Chamber Construction for Large Test Samples
Due to its large dimensions, the Walk-in Test Chamber is designed using modular insulated panels that are assembled directly at the installation site.
The chamber walls use approximately 100 mm thick polyurethane sandwich insulation panels, with polyurethane foam density above 40 kg/m³.
PE sealing strips and mechanical locking structures are used at panel connections to improve chamber airtightness and thermal insulation performance.
According to the equipment documentation, the insulation structure complies with the B1 fire-resistance classification requirements of GB8624-1997.
The chamber floor is reinforced and covered with a 3 mm thick stainless-steel anti-slip plate. Its stated uniformly distributed load capacity is up to approximately 1,000 kg/m².
This construction makes the chamber suitable for environmental testing of relatively large and heavy samples.
Large Access Door for Easy Sample Handling
The Walk-in Test Chamber is equipped with a large access door designed to simplify the movement of test samples in and out of the chamber.
The door incorporates dual silicone rubber sealing strips together with an anti-condensation heating device around the door frame.
Two multilayer vacuum observation windows, approximately 400 × 700 mm, are also provided with an automatic defrosting function to minimize condensation during testing.
A ramp can be installed in front of the chamber entrance to facilitate the movement of samples using forklifts or handling equipment.
These features are particularly beneficial when testing large products or assemblies that cannot easily be handled in conventional environmental chambers.
Refrigeration and Air Circulation System
The RHPW-10BT Walk-in Test Chamber uses a refrigeration system incorporating a cooling tower and water-cooled shell-and-tube condenser.
The refrigeration controller automatically adjusts system operation according to the selected testing conditions, supporting stable temperature control and improved operating efficiency.
Inside the chamber, a forced-air circulation system helps distribute conditioned air throughout the test space.
For a Walk-in Chamber with a nominal volume of 10 m³, proper airflow distribution is especially important in maintaining consistent temperature and humidity conditions across the working area.
User-Friendly Control and Monitoring System
The chamber is equipped with a 7-inch touchscreen controller, allowing operators to program and monitor temperature and humidity test profiles.
The control system also provides:
USB interface and RS232 communication interface.
With programmable control, operators can create temperature and humidity cycles according to specific product or component testing requirements rather than manually adjusting individual environmental conditions.
Safety Features for Walk-in Environmental Testing
Safety is particularly important for large Walk-in Chambers because operators may physically enter the testing area during sample loading, installation, or maintenance.
The system incorporates multiple protection mechanisms, including over-temperature protection, electrical leakage protection, overload protection, short-circuit protection, compressor protection, and alarm functions.
Importantly, the chamber door is designed so that it can be opened from inside the chamber in an emergency.
The system also includes an indoor emergency stop function and an external status indicator to provide clear operating and fault information.
Infrastructure Requirements for Walk-in Test Chamber Installation
Unlike small environmental test chambers that may only require positioning and power connection, a large Walk-in Temperature and Humidity Chamber requires careful planning of the installation infrastructure.
According to the technical documentation, the installation area should have:
-
A flat floor
-
Good ventilation
-
No significant vibration
-
No strong electromagnetic field
-
No flammable, explosive, or corrosive substances nearby
-
Sufficient maintenance space around the chamber
The recommended operating environment is 5°C to 35°C, with relative humidity not exceeding 85%RH and atmospheric pressure between 86 kPa and 106 kPa.
The specified power supply is AC 380V, with frequency of approximately 50 ±0.5 Hz. The protective grounding resistance should be below 4 Ω, and an independent appropriately rated electrical protection switch should be installed for the chamber.
The chamber also requires an appropriate water supply for the humidification and cooling systems, depending on the equipment configuration.
VintechME Walk-in Test Chamber Installation Project in Bac Ninh
In August 2026, VintechME carried out the on-site installation of this large Walk-in environmental chamber in Bac Ninh.
With external dimensions of approximately 2.2 × 2.45 × 3.85 meters, installation involves much more than simply connecting the equipment to an electrical supply.
The project requires coordination of several systems, including:
The technical documentation also specifies that the chamber is designed to be assembled and installed on site.
After installation, the main system functions should be checked before commissioning, including temperature control, humidity control, refrigeration, heating, humidification, air circulation, alarms, control functions, and safety protection.
The project further strengthens VintechME's practical experience in installing, commissioning, and supporting environmental testing systems, especially large Walk-in Chambers that require coordination between multiple technical systems.
Applications of Large Walk-in Temperature & Humidity Chambers
Walk-in Temperature and Humidity Chambers are suitable for companies and laboratories that need to evaluate products under controlled environmental conditions.
Their large testing space is particularly beneficial for testing large assemblies or multiple samples simultaneously.
Typical applications include:
-
Automotive and automotive components
-
Electrical and electronic products
-
Industrial equipment
-
Mechanical components
-
Plastics and rubber products
-
Materials testing
-
Research and development
-
Product reliability testing
Depending on applicable standards and individual product requirements, different temperature and humidity test profiles can be programmed to simulate various environmental conditions.
VintechME – Environmental Testing Equipment & Solutions
In addition to equipment supply, professional on-site installation and technical support play an important role in ensuring the stable and reliable operation of large environmental test systems.
VintechME provides solutions related to temperature test chambers, temperature and humidity chambers, Walk-in Test Chambers, environmental chambers, vibration test systems, and reliability testing equipment, together with installation, commissioning, maintenance, and technical support services.
For companies looking to invest in a new Walk-in Temperature and Humidity Chamber, install an environmental test system, or obtain technical support for existing test equipment, VintechME can provide solutions based on specific testing requirements and actual site conditions.
VINTECHME – Testing Equipment & Solutions
Hotline: 0966 252 565
Email: info@vintechme.com
Website: vintechme.com
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